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Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A set of x86 and membarrier fixes:
- Correct a few problems in the x86 and the generic membarrier
implementation. Small corrections for assumptions about visibility
which have turned out not to be true.
- Make the PAT bits for memory encryption correct vs 4K and 2M/1G
page table entries as they are at a different location.
- Fix a concurrency issue in the the local bandwidth readout of
resource control leading to incorrect values
- Fix the ordering of allocating a vector for an interrupt. The order
missed to respect the provided cpumask when the first attempt of
allocating node local in the mask fails. It then tries the node
instead of trying the full provided mask first. This leads to
erroneous error messages and breaking the (user) supplied affinity
request. Reorder it.
- Make the INT3 padding detection in optprobe work correctly"
* tag 'x86-urgent-2020-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/kprobes: Fix optprobe to detect INT3 padding correctly
x86/apic/vector: Fix ordering in vector assignment
x86/resctrl: Fix incorrect local bandwidth when mba_sc is enabled
x86/mm/mem_encrypt: Fix definition of PMD_FLAGS_DEC_WP
membarrier: Execute SYNC_CORE on the calling thread
membarrier: Explicitly sync remote cores when SYNC_CORE is requested
membarrier: Add an actual barrier before rseq_preempt()
x86/membarrier: Get rid of a dubious optimization
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Pull block fixes from Jens Axboe:
"This should be it for 5.10.
Mike and Song looked into the warning case, and thankfully it appears
the fix was pretty trivial - we can just change the md device chunk
type to unsigned int to get rid of it. They cannot currently be < 0,
and nobody is checking for that either.
We're reverting the discard changes as the corruption reports came in
very late, and there's just no time to attempt to deal with it at this
point. Reverting the changes in question is the right call for 5.10"
* tag 'block-5.10-2020-12-12' of git://git.kernel.dk/linux-block:
md: change mddev 'chunk_sectors' from int to unsigned
Revert "md: add md_submit_discard_bio() for submitting discard bio"
Revert "md/raid10: extend r10bio devs to raid disks"
Revert "md/raid10: pull codes that wait for blocked dev into one function"
Revert "md/raid10: improve raid10 discard request"
Revert "md/raid10: improve discard request for far layout"
Revert "dm raid: remove unnecessary discard limits for raid10"
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"Five small fixes. Four in drivers:
- hisi_sas: fix internal queue timeout
- be2iscsi: revert a prior fix causing problems
- bnx2i: add missing dependency
- storvsc: late arriving revert of a problem fix
and one in the core.
The core one is a minor change to stop paying attention to the busy
count when returning out of resources because there's a race window
where the queue might not restart due to missing returning I/O"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
Revert "scsi: storvsc: Validate length of incoming packet in storvsc_on_channel_callback()"
scsi: hisi_sas: Select a suitable queue for internal I/Os
scsi: core: Fix race between handling STS_RESOURCE and completion
scsi: be2iscsi: Revert "Fix a theoretical leak in beiscsi_create_eqs()"
scsi: bnx2i: Requires MMU
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fix from Wolfram Sang:
"Bugfix for the AT24 EEPROM driver"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
misc: eeprom: at24: fix NVMEM name with custom AT24 device name
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Pull kvm fixes from Paolo Bonzini:
"Bugfixes for ARM, x86 and tools"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
tools/kvm_stat: Exempt time-based counters
KVM: mmu: Fix SPTE encoding of MMIO generation upper half
kvm: x86/mmu: Use cpuid to determine max gfn
kvm: svm: de-allocate svm_cpu_data for all cpus in svm_cpu_uninit()
selftests: kvm/set_memory_region_test: Fix race in move region test
KVM: arm64: Add usage of stage 2 fault lookup level in user_mem_abort()
KVM: arm64: Fix handling of merging tables into a block entry
KVM: arm64: Fix memory leak on stage2 update of a valid PTE
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"A short series fixing a regression introduced in 5.9 for running as
Xen dom0 on a system with NVMe backed storage"
* tag 'for-linus-5.10c-rc8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: don't use page->lru for ZONE_DEVICE memory
xen: add helpers for caching grant mapping pages
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fix from Palmer Dabbelt:
"Just one fix. It's nothing critical, just a randconfig that wasn't
building. That said, it does seem pretty safe and is technically a
regression so I'm sending it along for 5.10:
- define get_cycles64() all the time, as it's used by most
configurations"
* tag 'riscv-for-linus-5.10-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
RISC-V: Define get_cycles64() regardless of M-mode
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Pull io_uring fixes from Jens Axboe:
"Two fixes in here, fixing issues introduced in this merge window"
* tag 'io_uring-5.10-2020-12-11' of git://git.kernel.dk/linux-block:
io_uring: fix file leak on error path of io ctx creation
io_uring: fix mis-seting personality's creds
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- a fix for cm109 stomping on its own control URB if it tries to toggle
buzzer immediately after userspace opens input device (found by
syzcaller)
- another fix for Raydium touchscreens that do not like splitting
command transfers
- quirks for i8042, soc_button_array, and goodix drivers to make them
work better with certain hardware.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: goodix - add upside-down quirk for Teclast X98 Pro tablet
Input: cm109 - do not stomp on control URB
Input: i8042 - add Acer laptops to the i8042 reset list
Input: cros_ec_keyb - send 'scancodes' in addition to key events
Input: soc_button_array - add Lenovo Yoga Tablet2 1051L to the dmi_use_low_level_irq list
Input: raydium_ts_i2c - do not split tx transactions
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Commit e2782f560c29 ("Revert "dm raid: remove unnecessary discard
limits for raid10"") exposed compiler warnings introduced by commit
e0910c8e4f87 ("dm raid: fix discard limits for raid1 and raid10"):
In file included from ./include/linux/kernel.h:14,
from ./include/asm-generic/bug.h:20,
from ./arch/x86/include/asm/bug.h:93,
from ./include/linux/bug.h:5,
from ./include/linux/mmdebug.h:5,
from ./include/linux/gfp.h:5,
from ./include/linux/slab.h:15,
from drivers/md/dm-raid.c:8:
drivers/md/dm-raid.c: In function ‘raid_io_hints’:
./include/linux/minmax.h:18:28: warning: comparison of distinct pointer types lacks a cast
(!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
^~
./include/linux/minmax.h:32:4: note: in expansion of macro ‘__typecheck’
(__typecheck(x, y) && __no_side_effects(x, y))
^~~~~~~~~~~
./include/linux/minmax.h:42:24: note: in expansion of macro ‘__safe_cmp’
__builtin_choose_expr(__safe_cmp(x, y), \
^~~~~~~~~~
./include/linux/minmax.h:51:19: note: in expansion of macro ‘__careful_cmp’
#define min(x, y) __careful_cmp(x, y, <)
^~~~~~~~~~~~~
./include/linux/minmax.h:84:39: note: in expansion of macro ‘min’
__x == 0 ? __y : ((__y == 0) ? __x : min(__x, __y)); })
^~~
drivers/md/dm-raid.c:3739:33: note: in expansion of macro ‘min_not_zero’
limits->max_discard_sectors = min_not_zero(rs->md.chunk_sectors,
^~~~~~~~~~~~
Fix this by changing the chunk_sectors member of 'struct mddev' from
int to 'unsigned int' to match the type used for the 'chunk_sectors'
member of 'struct queue_limits'. Various MD code still uses 'int' but
none of it appears to ever make use of signed int; and storing
positive signed int in unsigned is perfectly safe.
Reported-by: Song Liu <songliubraving@fb.com>
Fixes: e2782f560c29 ("Revert "dm raid: remove unnecessary discard limits for raid10"")
Fixes: e0910c8e4f87 ("dm raid: fix discard limits for raid1 and raid10")
Cc: stable@vger,kernel.org # e0910c8e4f87 was marked for stable@
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Reviewed-by: Song Liu <song@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Commit
7705dc855797 ("x86/vmlinux: Use INT3 instead of NOP for linker fill bytes")
changed the padding bytes between functions from NOP to INT3. However,
when optprobe decodes a target function it finds INT3 and gives up the
jump optimization.
Instead of giving up any INT3 detection, check whether the rest of the
bytes to the end of the function are INT3. If all of them are INT3,
those come from the linker. In that case, continue the optprobe jump
optimization.
[ bp: Massage commit message. ]
Fixes: 7705dc855797 ("x86/vmlinux: Use INT3 instead of NOP for linker fill bytes")
Reported-by: Adam Zabrocki <pi3@pi3.com.pl>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/160767025681.3880685.16021570341428835411.stgit@devnote2
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The touchscreen on the Teclast x98 Pro is also mounted upside-down in
relation to the display orientation.
Signed-off-by: Simon Beginn <linux@simonmicro.de>
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Link: https://lore.kernel.org/r/20201117004253.27A5A27EFD@localhost
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The new counters halt_poll_success_ns and halt_poll_fail_ns do not count
events. Instead they provide a time, and mess up our statistics. Therefore,
we should exclude them.
Removal is currently implemented with an exempt list. If more counters like
these appear, we can think about a more general rule like excluding all
fields name "*_ns", in case that's a standing convention.
Signed-off-by: Stefan Raspl <raspl@linux.ibm.com>
Tested-and-reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20201208210829.101324-1-raspl@linux.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Commit cae7ed3c2cb0 ("KVM: x86: Refactor the MMIO SPTE generation handling")
cleaned up the computation of MMIO generation SPTE masks, however it
introduced a bug how the upper part was encoded:
SPTE bits 52-61 were supposed to contain bits 10-19 of the current
generation number, however a missing shift encoded bits 1-10 there instead
(mostly duplicating the lower part of the encoded generation number that
then consisted of bits 1-9).
In the meantime, the upper part was shrunk by one bit and moved by
subsequent commits to become an upper half of the encoded generation number
(bits 9-17 of bits 0-17 encoded in a SPTE).
In addition to the above, commit 56871d444bc4 ("KVM: x86: fix overlap between SPTE_MMIO_MASK and generation")
has changed the SPTE bit range assigned to encode the generation number and
the total number of bits encoded but did not update them in the comment
attached to their defines, nor in the KVM MMU doc.
Let's do it here, too, since it is too trivial thing to warrant a separate
commit.
Fixes: cae7ed3c2cb0 ("KVM: x86: Refactor the MMIO SPTE generation handling")
Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
Message-Id: <156700708db2a5296c5ed7a8b9ac71f1e9765c85.1607129096.git.maciej.szmigiero@oracle.com>
Cc: stable@vger.kernel.org
[Reorganize macros so that everything is computed from the bit ranges. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd fixes from Miquel Raynal:
"Second series of fixes for raw NAND drivers initiated because of a
rework of the ECC engine subsystem.
The location of the DT parsing logic got moved, breaking several
drivers which in fact were not doing the ECC engine initialization at
the right place.
These drivers have been fixed by enforcing a particular ECC engine
type and algorithm, software Hamming, while the algorithm may be
overwritten by a DT property. This merge request fixes this in the
xway, socrates, plat_nand, pasemi, orion, mpc5121, gpio, au1550 and
ams-delta controller drivers"
* tag 'mtd/fixes-for-5.10-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
mtd: rawnand: xway: Do not force a particular software ECC engine
mtd: rawnand: socrates: Do not force a particular software ECC engine
mtd: rawnand: plat_nand: Do not force a particular software ECC engine
mtd: rawnand: pasemi: Do not force a particular software ECC engine
mtd: rawnand: orion: Do not force a particular software ECC engine
mtd: rawnand: mpc5121: Do not force a particular software ECC engine
mtd: rawnand: gpio: Do not force a particular software ECC engine
mtd: rawnand: au1550: Do not force a particular software ECC engine
mtd: rawnand: ams-delta: Do not force a particular software ECC engine
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"A couple of MMC fixes:
MMC core:
- Fixup condition for CMD13 polling for RPMB requests
MMC host:
- mtk-sd: Fix system suspend/resume support for CQHCI
- mtd-sd: Extend SDIO IRQ fix to more variants
- sdhci-of-arasan: Fix clock registration error for Keem Bay SOC
- tmio: Bring HW to a sane state after a power off"
* tag 'mmc-v5.10-rc4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: mediatek: mark PM functions as __maybe_unused
mmc: block: Fixup condition for CMD13 polling for RPMB requests
mmc: tmio: improve bringing HW to a sane state with MMC_POWER_OFF
mmc: sdhci-of-arasan: Fix clock registration error for Keem Bay SOC
mmc: mediatek: Extend recheck_sdio_irq fix to more variants
mmc: mediatek: Fix system suspend/resume support for CQHCI
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-current
at24 fixes for v5.10
- fix NVMEM name with custom AT24 device name
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git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs
Pull zonefs fix from Damien Le Moal:
"A single patch in this pull request to fix a BIO and page reference
leak when writing sequential zone files"
* tag 'zonefs-5.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
zonefs: fix page reference and BIO leak
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Remove bpf_ prefix, which causes these helpers to be reported in verifier
dump as bpf_bpf_this_cpu_ptr() and bpf_bpf_per_cpu_ptr(), respectively. Lets
fix it as long as it is still possible before UAPI freezes on these helpers.
Fixes: eaa6bcb71ef6 ("bpf: Introduce bpf_per_cpu_ptr()")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge misc fixes from Andrew Morton:
"8 patches.
Subsystems affected by this patch series: proc, selftests, kbuild, and
mm (pagecache, kasan, hugetlb)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm/hugetlb: clear compound_nr before freeing gigantic pages
kasan: fix object remaining in offline per-cpu quarantine
elfcore: fix building with clang
initramfs: fix clang build failure
kbuild: avoid static_assert for genksyms
selftest/fpu: avoid clang warning
proc: use untagged_addr() for pagemap_read addresses
revert "mm/filemap: add static for function __add_to_page_cache_locked"
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Commit 1378a5ee451a ("mm: store compound_nr as well as compound_order")
added compound_nr counter to first tail struct page, overlaying with
page->mapping. The overlay itself is fine, but while freeing gigantic
hugepages via free_contig_range(), a "bad page" check will trigger for
non-NULL page->mapping on the first tail page:
BUG: Bad page state in process bash pfn:380001
page:00000000c35f0856 refcount:0 mapcount:0 mapping:00000000126b68aa index:0x0 pfn:0x380001
aops:0x0
flags: 0x3ffff00000000000()
raw: 3ffff00000000000 0000000000000100 0000000000000122 0000000100000000
raw: 0000000000000000 0000000000000000 ffffffff00000000 0000000000000000
page dumped because: non-NULL mapping
Modules linked in:
CPU: 6 PID: 616 Comm: bash Not tainted 5.10.0-rc7-next-20201208 #1
Hardware name: IBM 3906 M03 703 (LPAR)
Call Trace:
show_stack+0x6e/0xe8
dump_stack+0x90/0xc8
bad_page+0xd6/0x130
free_pcppages_bulk+0x26a/0x800
free_unref_page+0x6e/0x90
free_contig_range+0x94/0xe8
update_and_free_page+0x1c4/0x2c8
free_pool_huge_page+0x11e/0x138
set_max_huge_pages+0x228/0x300
nr_hugepages_store_common+0xb8/0x130
kernfs_fop_write+0xd2/0x218
vfs_write+0xb0/0x2b8
ksys_write+0xac/0xe0
system_call+0xe6/0x288
Disabling lock debugging due to kernel taint
This is because only the compound_order is cleared in
destroy_compound_gigantic_page(), and compound_nr is set to
1U << order == 1 for order 0 in set_compound_order(page, 0).
Fix this by explicitly clearing compound_nr for first tail page after
calling set_compound_order(page, 0).
Link: https://lkml.kernel.org/r/20201208182813.66391-2-gerald.schaefer@linux.ibm.com
Fixes: 1378a5ee451a ("mm: store compound_nr as well as compound_order")
Signed-off-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: <stable@vger.kernel.org> [5.9+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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We hit this issue in our internal test. When enabling generic kasan, a
kfree()'d object is put into per-cpu quarantine first. If the cpu goes
offline, object still remains in the per-cpu quarantine. If we call
kmem_cache_destroy() now, slub will report "Objects remaining" error.
=============================================================================
BUG test_module_slab (Not tainted): Objects remaining in test_module_slab on __kmem_cache_shutdown()
-----------------------------------------------------------------------------
Disabling lock debugging due to kernel taint
INFO: Slab 0x(____ptrval____) objects=34 used=1 fp=0x(____ptrval____) flags=0x2ffff00000010200
CPU: 3 PID: 176 Comm: cat Tainted: G B 5.10.0-rc1-00007-g4525c8781ec0-dirty #10
Hardware name: linux,dummy-virt (DT)
Call trace:
dump_backtrace+0x0/0x2b0
show_stack+0x18/0x68
dump_stack+0xfc/0x168
slab_err+0xac/0xd4
__kmem_cache_shutdown+0x1e4/0x3c8
kmem_cache_destroy+0x68/0x130
test_version_show+0x84/0xf0
module_attr_show+0x40/0x60
sysfs_kf_seq_show+0x128/0x1c0
kernfs_seq_show+0xa0/0xb8
seq_read+0x1f0/0x7e8
kernfs_fop_read+0x70/0x338
vfs_read+0xe4/0x250
ksys_read+0xc8/0x180
__arm64_sys_read+0x44/0x58
el0_svc_common.constprop.0+0xac/0x228
do_el0_svc+0x38/0xa0
el0_sync_handler+0x170/0x178
el0_sync+0x174/0x180
INFO: Object 0x(____ptrval____) @offset=15848
INFO: Allocated in test_version_show+0x98/0xf0 age=8188 cpu=6 pid=172
stack_trace_save+0x9c/0xd0
set_track+0x64/0xf0
alloc_debug_processing+0x104/0x1a0
___slab_alloc+0x628/0x648
__slab_alloc.isra.0+0x2c/0x58
kmem_cache_alloc+0x560/0x588
test_version_show+0x98/0xf0
module_attr_show+0x40/0x60
sysfs_kf_seq_show+0x128/0x1c0
kernfs_seq_show+0xa0/0xb8
seq_read+0x1f0/0x7e8
kernfs_fop_read+0x70/0x338
vfs_read+0xe4/0x250
ksys_read+0xc8/0x180
__arm64_sys_read+0x44/0x58
el0_svc_common.constprop.0+0xac/0x228
kmem_cache_destroy test_module_slab: Slab cache still has objects
Register a cpu hotplug function to remove all objects in the offline
per-cpu quarantine when cpu is going offline. Set a per-cpu variable to
indicate this cpu is offline.
[qiang.zhang@windriver.com: fix slab double free when cpu-hotplug]
Link: https://lkml.kernel.org/r/20201204102206.20237-1-qiang.zhang@windriver.com
Link: https://lkml.kernel.org/r/1606895585-17382-2-git-send-email-Kuan-Ying.Lee@mediatek.com
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Signed-off-by: Zqiang <qiang.zhang@windriver.com>
Suggested-by: Dmitry Vyukov <dvyukov@google.com>
Reported-by: Guangye Yang <guangye.yang@mediatek.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Nicholas Tang <nicholas.tang@mediatek.com>
Cc: Miles Chen <miles.chen@mediatek.com>
Cc: Qian Cai <qcai@redhat.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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kernel/elfcore.c only contains weak symbols, which triggers a bug with
clang in combination with recordmcount:
Cannot find symbol for section 2: .text.
kernel/elfcore.o: failed
Move the empty stubs into linux/elfcore.h as inline functions. As only
two architectures use these, just use the architecture specific Kconfig
symbols to key off the declaration.
Link: https://lkml.kernel.org/r/20201204165742.3815221-2-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Barret Rhoden <brho@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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There is only one function in init/initramfs.c that is in the .text
section, and it is marked __weak. When building with clang-12 and the
integrated assembler, this leads to a bug with recordmcount:
./scripts/recordmcount "init/initramfs.o"
Cannot find symbol for section 2: .text.
init/initramfs.o: failed
I'm not quite sure what exactly goes wrong, but I notice that this
function is only ever called from an __init function, and normally
inlined. Marking it __init as well is clearly correct and it leads to
recordmcount no longer complaining.
Link: https://lkml.kernel.org/r/20201204165742.3815221-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Barret Rhoden <brho@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
genksyms does not know or care about the _Static_assert() built-in, and
sometimes falls back to ignoring the later symbols, which causes
undefined behavior such as
WARNING: modpost: EXPORT symbol "ethtool_set_ethtool_phy_ops" [vmlinux] version generation failed, symbol will not be versioned.
ld: net/ethtool/common.o: relocation R_AARCH64_ABS32 against `__crc_ethtool_set_ethtool_phy_ops' can not be used when making a shared object
net/ethtool/common.o:(_ftrace_annotated_branch+0x0): dangerous relocation: unsupported relocation
Redefine static_assert for genksyms to avoid that.
Link: https://lkml.kernel.org/r/20201203230955.1482058-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Suggested-by: Ard Biesheuvel <ardb@kernel.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Kees Cook <keescook@chromium.org>
Cc: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Cc: Marco Elver <elver@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
With extra warnings enabled, clang complains about the redundant
-mhard-float argument:
clang: error: argument unused during compilation: '-mhard-float' [-Werror,-Wunused-command-line-argument]
Move this into the gcc-only part of the Makefile.
Link: https://lkml.kernel.org/r/20201203223652.1320700-1-arnd@kernel.org
Fixes: 4185b3b92792 ("selftests/fpu: Add an FPU selftest")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Petteri Aimonen <jpa@git.mail.kapsi.fi>
Cc: Borislav Petkov <bp@suse.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
When we try to visit the pagemap of a tagged userspace pointer, we find
that the start_vaddr is not correct because of the tag.
To fix it, we should untag the userspace pointers in pagemap_read().
I tested with 5.10-rc4 and the issue remains.
Explanation from Catalin in [1]:
"Arguably, that's a user-space bug since tagged file offsets were never
supported. In this case it's not even a tag at bit 56 as per the arm64
tagged address ABI but rather down to bit 47. You could say that the
problem is caused by the C library (malloc()) or whoever created the
tagged vaddr and passed it to this function. It's not a kernel
regression as we've never supported it.
Now, pagemap is a special case where the offset is usually not
generated as a classic file offset but rather derived by shifting a
user virtual address. I guess we can make a concession for pagemap
(only) and allow such offset with the tag at bit (56 - PAGE_SHIFT + 3)"
My test code is based on [2]:
A userspace pointer which has been tagged by 0xb4: 0xb400007662f541c8
userspace program:
uint64 OsLayer::VirtualToPhysical(void *vaddr) {
uint64 frame, paddr, pfnmask, pagemask;
int pagesize = sysconf(_SC_PAGESIZE);
off64_t off = ((uintptr_t)vaddr) / pagesize * 8; // off = 0xb400007662f541c8 / pagesize * 8 = 0x5a00003b317aa0
int fd = open(kPagemapPath, O_RDONLY);
...
if (lseek64(fd, off, SEEK_SET) != off || read(fd, &frame, 8) != 8) {
int err = errno;
string errtxt = ErrorString(err);
if (fd >= 0)
close(fd);
return 0;
}
...
}
kernel fs/proc/task_mmu.c:
static ssize_t pagemap_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
...
src = *ppos;
svpfn = src / PM_ENTRY_BYTES; // svpfn == 0xb400007662f54
start_vaddr = svpfn << PAGE_SHIFT; // start_vaddr == 0xb400007662f54000
end_vaddr = mm->task_size;
/* watch out for wraparound */
// svpfn == 0xb400007662f54
// (mm->task_size >> PAGE) == 0x8000000
if (svpfn > mm->task_size >> PAGE_SHIFT) // the condition is true because of the tag 0xb4
start_vaddr = end_vaddr;
ret = 0;
while (count && (start_vaddr < end_vaddr)) { // we cannot visit correct entry because start_vaddr is set to end_vaddr
int len;
unsigned long end;
...
}
...
}
[1] https://lore.kernel.org/patchwork/patch/1343258/
[2] https://github.com/stressapptest/stressapptest/blob/master/src/os.cc#L158
Link: https://lkml.kernel.org/r/20201204024347.8295-1-miles.chen@mediatek.com
Signed-off-by: Miles Chen <miles.chen@mediatek.com>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Will Deacon <will@kernel.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Song Bao Hua (Barry Song) <song.bao.hua@hisilicon.com>
Cc: <stable@vger.kernel.org> [5.4-]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
Revert commit 3351b16af494 ("mm/filemap: add static for function
__add_to_page_cache_locked") due to incompatibility with
ALLOW_ERROR_INJECTION which result in build errors.
Link: https://lkml.kernel.org/r/CAADnVQJ6tmzBXvtroBuEH6QA0H+q7yaSKxrVvVxhqr3KBZdEXg@mail.gmail.com
Tested-by: Justin Forbes <jmforbes@linuxtx.org>
Tested-by: Greg Thelen <gthelen@google.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Cc: Michal Kubecek <mkubecek@suse.cz>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Josef Bacik <josef@toxicpanda.com>
Cc: Tony Luck <tony.luck@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
We need to make sure we are not stomping on the control URB that was
issued when opening the device when attempting to toggle buzzer.
To do that we need to mark it as pending in cm109_open().
Reported-and-tested-by: syzbot+150f793ac5bc18eee150@syzkaller.appspotmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
|
|
Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Fixes: d525914b5bd8 ("mtd: rawnand: xway: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-10-miquel.raynal@bootlin.com
|
|
Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Fixes: b36bf0a0fe5d ("mtd: rawnand: socrates: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-9-miquel.raynal@bootlin.com
|
|
Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Fixes: 612e048e6aab ("mtd: rawnand: plat_nand: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-8-miquel.raynal@bootlin.com
|
|
Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Fixes: 8fc6f1f042b2 ("mtd: rawnand: pasemi: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-7-miquel.raynal@bootlin.com
|
|
Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Reported-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Fixes: 553508cec2e8 ("mtd: rawnand: orion: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-6-miquel.raynal@bootlin.com
|
|
Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Fixes: 6dd09f775b72 ("mtd: rawnand: mpc5121: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-5-miquel.raynal@bootlin.com
|
|
Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Fixes: f6341f6448e0 ("mtd: rawnand: gpio: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-4-miquel.raynal@bootlin.com
|
|
Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Fixes: dbffc8ccdf3a ("mtd: rawnand: au1550: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-3-miquel.raynal@bootlin.com
|
|
Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework
user input parsing bits") kind of broke the logic around the
initialization of several ECC engines.
Unfortunately, the fix (which indeed moved the ECC initialization to
the right place) did not take into account the fact that a different
ECC algorithm could have been used thanks to a DT property,
considering the "Hamming" algorithm entry a configuration while it was
only a default.
Add the necessary logic to be sure Hamming keeps being only a default.
Fixes: 59d93473323a ("mtd: rawnand: ams-delta: Move the ECC initialization to ->attach_chip()")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-2-miquel.raynal@bootlin.com
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|
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Here is a late set of pin control fixes for v5.10, most concern some
minor and major issues found in the Intel drivers. Some are so hairy
that I have no idea what is going on there, but luckily the maintainer
knows what's up.
We also have an interesting fix for AMD, which makes AMD-based laptops
more stable IIUC.
Summary:
- Fix up some SPI group and a register offset on Intel Jasperlake
- Set default bias on Intel Merrifield
- Preserve debouncing on Intel Baytrail
- Stop .set_type() irqchip callback in the AMD driver from fiddling
with the debounce filter
- Fix access to GPIO banks that are pass-thru on the Aspeed
- Fix a fix for the Intel pin control driver to disable Rx/Tx when
requesting a UART line as GPIO"
* tag 'pinctrl-v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: intel: Actually disable Tx and Rx buffers on GPIO request
pinctrl: aspeed: Fix GPIO requests on pass-through banks
pinctrl: amd: remove debounce filter setting in IRQ type setting
pinctrl: baytrail: Avoid clearing debounce value when turning it off
pinctrl: merrifield: Set default bias in case no particular value given
pinctrl: jasperlake: Fix HOSTSW_OWN offset
pinctrl: jasperlake: Unhide SPI group of pins
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|
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"These are hopefully the last GPIO fixes for this cycle.
All are driver fixes except a small resource leak for pin ranges in
the gpiolib. Two are PM related, which is nice because when developers
start to find PM bugs it is usually because they have smoked out the
bugs of more severe nature.
Summary:
- Fix runtime PM balancing on the errorpath of the Arizona driver
- Fix a suspend NULL pointer reference in the dwapb driver
- Balance free:ing in gpiochip_generic_free()
- Fix runtime PM balancing on the errorpath of the zynq driver
- Fix irqdomain use-after-free in the mvebu driver
- Break an eternal loop in the spreadtrum EIC driver"
* tag 'v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: eic-sprd: break loop when getting NULL device resource
gpio: mvebu: fix potential user-after-free on probe
gpio: zynq: fix reference leak in zynq_gpio functions
gpiolib: Don't free if pin ranges are not defined
gpio: dwapb: fix NULL pointer dereference at dwapb_gpio_suspend()
gpio: arizona: disable pm_runtime in case of failure
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|
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"Two small clk driver build fixes
- Remove __packed from a Renesas struct to improve portability
- Fix a linking problem with i.MX when config options don't agree"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: renesas: r9a06g032: Drop __packed for portability
clk: imx: scu: fix MXC_CLK_SCU module build break
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|
storvsc_on_channel_callback()"
This reverts commit 3b8c72d076c42bf27284cda7b2b2b522810686f8.
Dexuan reported a regression where StorVSC fails to probe a device (and
where, consequently, the VM may fail to boot). The root-cause analysis led
to a long-standing race condition that is exposed by the validation /commit
in question. Let's put the new validation aside until a proper solution
for that race condition is in place.
Link: https://lore.kernel.org/r/20201211131404.21359-1-parri.andrea@gmail.com
Fixes: 3b8c72d076c4 ("scsi: storvsc: Validate length of incoming packet in storvsc_on_channel_callback()")
Cc: Dexuan Cui <decui@microsoft.com>
Cc: "James E.J. Bottomley" <jejb@linux.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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|
Pull drm fixes from Dave Airlie:
"Last week of fixes, just amdgpu and i915 collections. We had a i915
regression reported by HJ Lu reported this morning, and this contains
a fix for that he has tested.
There are a fair few other fixes, but they are spread across the two
drivers, and all fairly self contained.
amdgpu:
- Fan fix for CI asics
- Fix a warning in possible_crtcs
- Build fix for when debugfs is disabled
- Display overflow fix
- Display watermark fixes for Renoir
- SDMA 5.2 fix
- Stolen vga memory regression fix
- Power profile fixes
- Fix a regression from removal of GEM and PRIME callbacks
amdkfd:
- Fix a memory leak in dmabuf import
i915:
- rc7 regression fix for modesetting
- vdsc/dp slice fixes
- gen9 mocs entries fix
- preemption timeout fix
- unsigned compare against 0 fix
- selftest fix
- submission error propogatig fix
- request flow suspend fix"
* tag 'drm-fixes-2020-12-11' of git://anongit.freedesktop.org/drm/drm:
drm/i915/display: Go softly softly on initial modeset failure
drm/amd/pm: typo fix (CUSTOM -> COMPUTE)
drm/amdgpu: Initialise drm_gem_object_funcs for imported BOs
drm/amdgpu: fix size calculation with stolen vga memory
drm/amd/pm: update smu10.h WORKLOAD_PPLIB setting for raven
drm/amdkfd: Fix leak in dmabuf import
drm/amdgpu: fix sdma instance fw version and feature version init
drm/amd/display: Add wm table for Renoir
drm/amd/display: Prevent bandwidth overflow
drm/amdgpu: fix debugfs creation/removal, again
drm/amdgpu/disply: set num_crtc earlier
drm/amdgpu/powerplay: parse fan table for CI asics
drm/i915/gt: Declare gen9 has 64 mocs entries!
drm/i915/display/dp: Compute the correct slice count for VDSC on DP
drm/i915: fix size_t greater or equal to zero comparison
drm/i915/gt: Cancel the preemption timeout on responding to it
drm/i915/gt: Ignore repeated attempts to suspend request flow across reset
drm/i915/gem: Propagate error from cancelled submit due to context closure
drm/i915/gem: Check the correct variable in selftest
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|
The timer driver uses get_cycles64() unconditionally to obtain the current
time. A recent refactoring lost the common definition for some configs, which
is now the only one we need.
Fixes: d5be89a8d118 ("RISC-V: Resurrect the MMIO timer implementation for M-mode systems")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
Pull ktest fix from Steven Rostedt:
"Fix issues with grub2bls in ktest.pl
ktest.pl did not know about grub2bls that was introduced in Fedora 30,
and now it does"
* tag 'ktest-v5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest.pl: Fix incorrect reboot for grub2bls
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fix from Michael Ellerman:
"One commit to implement copy_from_kernel_nofault_allowed(), otherwise
copy_from_kernel_nofault() can trigger warnings when accessing bad
addresses in some configurations.
Thanks to Christophe Leroy and Qian Cai"
* tag 'powerpc-5.10-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm: Fix KUAP warning by providing copy_from_kernel_nofault_allowed()
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|
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull namespaced fscaps fix from James Morris:
"Fix namespaced fscaps when !CONFIG_SECURITY (Serge Hallyn)"
* tag 'fixes-v5.10a' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
[SECURITY] fix namespaced fscaps when !CONFIG_SECURITY
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|
Reduce the module/device probe error into a mere debug to hide issues
where the initial modeset is failing (after lies told by hw probe) and
the system hangs with a livelock in cleaning up the failed commit.
Reported-by: H.J. Lu <hjl.tools@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=210619
Fixes: b3bf99daaee9 ("drm/i915/display: Defer initial modeset until after GGTT is initialised")
Fixes: ccc9e67ab26f ("drm/i915/display: Defer initial modeset until after GGTT is initialised")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: H.J. Lu <hjl.tools@gmail.com>
Cc: Dave Airlie <airlied@redhat.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201210230741.17140-1-chris@chris-wilson.co.uk
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
Fixes for VDSC/DP, selftests, shmem_utils, preemption, submission, and gt reset:
- Check the correct variable in selftest (Dan)
- Propagate error from canceled submit due to context closure (Chris)
- Ignore repeated attempts to suspend request flow across reset (Chris)
- Cancel the preemption timeout on responding to it (Chris)
- Fix unsigned compared against 0 (Colin)
- Compute the correct slice count for VDSC on DP (Manasi)
- Declar gen9 has 64 mocs entries (Chris)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201209235010.GA10554@intel.com
|
|
git://people.freedesktop.org/~agd5f/linux into drm-fixes
amd-drm-fixes-5.10-2020-12-09:
amdgpu:
- Fan fix for CI asics
- Fix a warning in possible_crtcs
- Build fix for when debugfs is disabled
- Display overflow fix
- Display watermark fixes for Renoir
- SDMA 5.2 fix
- Stolen vga memory regression fix
- Power profile fixes
- Fix a regression from removal of GEM and PRIME callbacks
amdkfd:
- Fix a memory leak in dmabuf import
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201210034848.18108-1-alexander.deucher@amd.com
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Pull NFS client fixes from Anna Schumaker:
"Here are a handful more bugfixes for 5.10.
Unfortunately, we found some problems with the new READ_PLUS operation
that aren't easy to fix. We've decided to disable this codepath
through a Kconfig option for now, but a series of patches going into
5.11 will clean up the code and fix the issues at the same time. This
seemed like the best way to go about it.
Summary:
- Fix array overflow when flexfiles mirroring is enabled
- Fix rpcrdma_inline_fixup() crash with new LISTXATTRS
- Fix 5 second delay when doing inter-server copy
- Disable READ_PLUS by default"
* tag 'nfs-for-5.10-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFS: Disable READ_PLUS by default
NFSv4.2: Fix 5 seconds delay when doing inter server copy
NFS: Fix rpcrdma_inline_fixup() crash with new LISTXATTRS operation
pNFS/flexfiles: Fix array overflow when flexfiles mirroring is enabled
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Pull networking fixes from David Miller:
1) IPsec compat fixes, from Dmitry Safonov.
2) Fix memory leak in xfrm_user_policy(). Fix from Yu Kuai.
3) Fix polling in xsk sockets by using sk_poll_wait() instead of
datagram_poll() which keys off of sk_wmem_alloc and such which xsk
sockets do not update. From Xuan Zhuo.
4) Missing init of rekey_data in cfgh80211, from Sara Sharon.
5) Fix destroy of timer before init, from Davide Caratti.
6) Missing CRYPTO_CRC32 selects in ethernet driver Kconfigs, from Arnd
Bergmann.
7) Missing error return in rtm_to_fib_config() switch case, from Zhang
Changzhong.
8) Fix some src/dest address handling in vrf and add a testcase. From
Stephen Suryaputra.
9) Fix multicast handling in Seville switches driven by mscc-ocelot
driver. From Vladimir Oltean.
10) Fix proto value passed to skb delivery demux in udp, from Xin Long.
11) HW pkt counters not reported correctly in enetc driver, from Claudiu
Manoil.
12) Fix deadlock in bridge, from Joseph Huang.
13) Missing of_node_pur() in dpaa2 driver, fromn Christophe JAILLET.
14) Fix pid fetching in bpftool when there are a lot of results, from
Andrii Nakryiko.
15) Fix long timeouts in nft_dynset, from Pablo Neira Ayuso.
16) Various stymmac fixes, from Fugang Duan.
17) Fix null deref in tipc, from Cengiz Can.
18) When mss is biog, coose more resonable rcvq_space in tcp, fromn Eric
Dumazet.
19) Revert a geneve change that likely isnt necessary, from Jakub
Kicinski.
20) Avoid premature rx buffer reuse in various Intel driversm from Björn
Töpel.
21) retain EcT bits during TIS reflection in tcp, from Wei Wang.
22) Fix Tso deferral wrt. cwnd limiting in tcp, from Neal Cardwell.
23) MPLS_OPT_LSE_LABEL attribute is 342 ot 8 bits, from Guillaume Nault
24) Fix propagation of 32-bit signed bounds in bpf verifier and add test
cases, from Alexei Starovoitov.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (81 commits)
selftests: fix poll error in udpgro.sh
selftests/bpf: Fix "dubious pointer arithmetic" test
selftests/bpf: Fix array access with signed variable test
selftests/bpf: Add test for signed 32-bit bound check bug
bpf: Fix propagation of 32-bit signed bounds from 64-bit bounds.
MAINTAINERS: Add entry for Marvell Prestera Ethernet Switch driver
net: sched: Fix dump of MPLS_OPT_LSE_LABEL attribute in cls_flower
net/mlx4_en: Handle TX error CQE
net/mlx4_en: Avoid scheduling restart task if it is already running
tcp: fix cwnd-limited bug for TSO deferral where we send nothing
net: flow_offload: Fix memory leak for indirect flow block
tcp: Retain ECT bits for tos reflection
ethtool: fix stack overflow in ethnl_parse_bitset()
e1000e: fix S0ix flow to allow S0i3.2 subset entry
ice: avoid premature Rx buffer reuse
ixgbe: avoid premature Rx buffer reuse
i40e: avoid premature Rx buffer reuse
igb: avoid transmit queue timeout in xdp path
igb: use xdp_do_flush
igb: skb add metasize for xdp
...
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Alexei Starovoitov says:
====================
pull-request: bpf 2020-12-10
The following pull-request contains BPF updates for your *net* tree.
We've added 21 non-merge commits during the last 12 day(s) which contain
a total of 21 files changed, 163 insertions(+), 88 deletions(-).
The main changes are:
1) Fix propagation of 32-bit signed bounds from 64-bit bounds, from Alexei.
2) Fix ring_buffer__poll() return value, from Andrii.
3) Fix race in lwt_bpf, from Cong.
4) Fix test_offload, from Toke.
5) Various xsk fixes.
Please consider pulling these changes from:
git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git
Thanks a lot!
Also thanks to reporters, reviewers and testers of commits in this pull-request:
Cong Wang, Hulk Robot, Jakub Kicinski, Jean-Philippe Brucker, John
Fastabend, Magnus Karlsson, Maxim Mikityanskiy, Yonghong Song
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Prarit reported that depending on the affinity setting the
' irq $N: Affinity broken due to vector space exhaustion.'
message is showing up in dmesg, but the vector space on the CPUs in the
affinity mask is definitely not exhausted.
Shung-Hsi provided traces and analysis which pinpoints the problem:
The ordering of trying to assign an interrupt vector in
assign_irq_vector_any_locked() is simply wrong if the interrupt data has a
valid node assigned. It does:
1) Try the intersection of affinity mask and node mask
2) Try the node mask
3) Try the full affinity mask
4) Try the full online mask
Obviously #2 and #3 are in the wrong order as the requested affinity
mask has to take precedence.
In the observed cases #1 failed because the affinity mask did not contain
CPUs from node 0. That made it allocate a vector from node 0, thereby
breaking affinity and emitting the misleading message.
Revert the order of #2 and #3 so the full affinity mask without the node
intersection is tried before actually affinity is broken.
If no node is assigned then only the full affinity mask and if that fails
the full online mask is tried.
Fixes: d6ffc6ac83b1 ("x86/vector: Respect affinity mask in irq descriptor")
Reported-by: Prarit Bhargava <prarit@redhat.com>
Reported-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/87ft4djtyp.fsf@nanos.tec.linutronix.de
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We've been seeing failures with xfstests generic/091 and generic/263
when using READ_PLUS. I've made some progress on these issues, and the
tests fail later on but still don't pass. Let's disable READ_PLUS by
default until we can work out what is going on.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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Since commit b4868b44c5628 ("NFSv4: Wait for stateid updates after
CLOSE/OPEN_DOWNGRADE"), every inter server copy operation suffers 5
seconds delay regardless of the size of the copy. The delay is from
nfs_set_open_stateid_locked when the check by nfs_stateid_is_sequential
fails because the seqid in both nfs4_state and nfs4_stateid are 0.
Fix __nfs42_ssc_open to delay setting of NFS_OPEN_STATE in nfs4_state,
until after the call to update_open_stateid, to indicate this is the 1st
open. This fix is part of a 2 patches, the other patch is the fix in the
source server to return the stateid for COPY_NOTIFY request with seqid 1
instead of 0.
Fixes: ce0887ac96d3 ("NFSD add nfs4 inter ssc to nfsd4_copy")
Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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By switching to an XFS-backed export, I am able to reproduce the
ibcomp worker crash on my client with xfstests generic/013.
For the failing LISTXATTRS operation, xdr_inline_pages() is called
with page_len=12 and buflen=128.
- When ->send_request() is called, rpcrdma_marshal_req() does not
set up a Reply chunk because buflen is smaller than the inline
threshold. Thus rpcrdma_convert_iovs() does not get invoked at
all and the transport's XDRBUF_SPARSE_PAGES logic is not invoked
on the receive buffer.
- During reply processing, rpcrdma_inline_fixup() tries to copy
received data into rq_rcv_buf->pages because page_len is positive.
But there are no receive pages because rpcrdma_marshal_req() never
allocated them.
The result is that the ibcomp worker faults and dies. Sometimes that
causes a visible crash, and sometimes it results in a transport hang
without other symptoms.
RPC/RDMA's XDRBUF_SPARSE_PAGES support is not entirely correct, and
should eventually be fixed or replaced. However, my preference is
that upper-layer operations should explicitly allocate their receive
buffers (using GFP_KERNEL) when possible, rather than relying on
XDRBUF_SPARSE_PAGES.
Reported-by: Olga kornievskaia <kolga@netapp.com>
Suggested-by: Olga kornievskaia <kolga@netapp.com>
Fixes: c10a75145feb ("NFSv4.2: add the extended attribute proc functions.")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Olga kornievskaia <kolga@netapp.com>
Reviewed-by: Frank van der Linden <fllinden@amazon.com>
Tested-by: Olga kornievskaia <kolga@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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|
The test program udpgso_bench_rx always invokes the poll()
syscall with a timeout of 10ms. If a larger timeout is specified
via the command line, udpgso_bench_rx is supposed to do multiple
poll() calls till the timeout is expired or an event is received.
Currently the poll() loop errors out after the first invocation with
no events, and may causes self-tests failure alike:
failed
GRO with custom segment size ./udpgso_bench_rx: poll: 0x0 expected 0x1
This change addresses the issue allowing the poll() loop to consume
all the configured timeout.
Fixes: ada641ff6ed3 ("selftests: fixes for UDP GRO")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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|
The verifier trace changed following a bugfix. After checking the 64-bit
sign, only the upper bit mask is known, not bit 31. Update the test
accordingly.
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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The test fails because of a recent fix to the verifier, even though this
program is valid. In details what happens is:
7: (61) r1 = *(u32 *)(r0 +0)
Load a 32-bit value, with signed bounds [S32_MIN, S32_MAX]. The bounds
of the 64-bit value are [0, U32_MAX]...
8: (65) if r1 s> 0xffffffff goto pc+1
... therefore this is always true (the operand is sign-extended).
10: (b4) w2 = 11
11: (6d) if r2 s> r1 goto pc+1
When true, the 64-bit bounds become [0, 10]. The 32-bit bounds are still
[S32_MIN, 10].
13: (64) w1 <<= 2
Because this is a 32-bit operation, the verifier propagates the new
32-bit bounds to the 64-bit ones, and the knowledge gained from insn 11
is lost.
14: (0f) r0 += r1
15: (7a) *(u64 *)(r0 +0) = 4
Then the verifier considers r0 unbounded here, rejecting the test. To
make the test work, change insn 8 to check the sign of the 32-bit value.
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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|
After a 32-bit load followed by a branch, the verifier would reduce the
maximum bound of the register to 0x7fffffff, allowing a user to bypass
bound checks. Ensure such a program is rejected.
In the second test, the 64-bit compare should not sufficient to
determine whether the signed 32-bit lower bound is 0, so the verifier
should reject the second branch.
Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
|
|
The 64-bit signed bounds should not affect 32-bit signed bounds unless the
verifier knows that upper 32-bits are either all 1s or all 0s. For example the
register with smin_value==1 doesn't mean that s32_min_value is also equal to 1,
since smax_value could be larger than 32-bit subregister can hold.
The verifier refines the smax/s32_max return value from certain helpers in
do_refine_retval_range(). Teach the verifier to recognize that smin/s32_min
value is also bounded. When both smin and smax bounds fit into 32-bit
subregister the verifier can propagate those bounds.
Fixes: 3f50f132d840 ("bpf: Verifier, do explicit ALU32 bounds tracking")
Reported-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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|
Pull rdma fixes from Jason Gunthorpe:
"Two user triggerable crashers and a some EFA related regressions:
- Syzkaller found a bug in CM
- Restore access to the GID table and fix modify_qp for EFA
- Crasher in qedr"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/cm: Fix an attempt to use non-valid pointer when cleaning timewait
RDMA/core: Fix empty gid table for non IB/RoCE devices
RDMA/efa: Use the correct current and new states in modify QP
RDMA/qedr: iWARP invalid(zero) doorbell address fix
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
"A couple of fixes:
- videobuf2: fix a DMABUF bug, preventing it to properly handle cache
sync/flush
- vidtv: an usage after free and a few sparse/smatch warning fixes
- pulse8-cec: a duplicate free and a bug related to new firmware
usage
- mtk-cir: fix a regression on a clock setting"
* tag 'media/v5.10-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: vidtv: fix some warnings
media: vidtv: fix kernel-doc markups
media: [next] media: vidtv: fix a read from an object after it has been freed
media: vb2: set cache sync hints when init buffers
media: pulse8-cec: add support for FW v10 and up
media: pulse8-cec: fix duplicate free at disconnect or probe error
media: mtk-cir: fix calculation of chk period
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The MBA software controller (mba_sc) is a feedback loop which
periodically reads MBM counters and tries to restrict the bandwidth
below a user-specified value. It tags along the MBM counter overflow
handler to do the updates with 1s interval in mbm_update() and
update_mba_bw().
The purpose of mbm_update() is to periodically read the MBM counters to
make sure that the hardware counter doesn't wrap around more than once
between user samplings. mbm_update() calls __mon_event_count() for local
bandwidth updating when mba_sc is not enabled, but calls mbm_bw_count()
instead when mba_sc is enabled. __mon_event_count() will not be called
for local bandwidth updating in MBM counter overflow handler, but it is
still called when reading MBM local bandwidth counter file
'mbm_local_bytes', the call path is as below:
rdtgroup_mondata_show()
mon_event_read()
mon_event_count()
__mon_event_count()
In __mon_event_count(), m->chunks is updated by delta chunks which is
calculated from previous MSR value (m->prev_msr) and current MSR value.
When mba_sc is enabled, m->chunks is also updated in mbm_update() by
mistake by the delta chunks which is calculated from m->prev_bw_msr
instead of m->prev_msr. But m->chunks is not used in update_mba_bw() in
the mba_sc feedback loop.
When reading MBM local bandwidth counter file, m->chunks was changed
unexpectedly by mbm_bw_count(). As a result, the incorrect local
bandwidth counter which calculated from incorrect m->chunks is shown to
the user.
Fix this by removing incorrect m->chunks updating in mbm_bw_count() in
MBM counter overflow handler, and always calling __mon_event_count() in
mbm_update() to make sure that the hardware local bandwidth counter
doesn't wrap around.
Test steps:
# Run workload with aggressive memory bandwidth (e.g., 10 GB/s)
git clone https://github.com/intel/intel-cmt-cat && cd intel-cmt-cat
&& make
./tools/membw/membw -c 0 -b 10000 --read
# Enable MBA software controller
mount -t resctrl resctrl -o mba_MBps /sys/fs/resctrl
# Create control group c1
mkdir /sys/fs/resctrl/c1
# Set MB throttle to 6 GB/s
echo "MB:0=6000;1=6000" > /sys/fs/resctrl/c1/schemata
# Write PID of the workload to tasks file
echo `pidof membw` > /sys/fs/resctrl/c1/tasks
# Read local bytes counters twice with 1s interval, the calculated
# local bandwidth is not as expected (approaching to 6 GB/s):
local_1=`cat /sys/fs/resctrl/c1/mon_data/mon_L3_00/mbm_local_bytes`
sleep 1
local_2=`cat /sys/fs/resctrl/c1/mon_data/mon_L3_00/mbm_local_bytes`
echo "local b/w (bytes/s):" `expr $local_2 - $local_1`
Before fix:
local b/w (bytes/s): 11076796416
After fix:
local b/w (bytes/s): 5465014272
Fixes: ba0f26d8529c (x86/intel_rdt/mba_sc: Prepare for feedback loop)
Signed-off-by: Xiaochen Shen <xiaochen.shen@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/1607063279-19437-1-git-send-email-xiaochen.shen@intel.com
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git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
kvm/arm64 fixes for 5.10, take #5
- Don't leak page tables on PTE update
- Correctly invalidate TLBs on table to block transition
- Only update permissions if the fault level matches the
expected mapping size
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https://git.kernel.org/pub/scm/linux/kernel/git/song/md into block-5.10
Pull MD fixes from Song:
"This is to fix raid10 data corruption [1] in 5.10-rc7."
* 'md-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md:
Revert "md: add md_submit_discard_bio() for submitting discard bio"
Revert "md/raid10: extend r10bio devs to raid disks"
Revert "md/raid10: pull codes that wait for blocked dev into one function"
Revert "md/raid10: improve raid10 discard request"
Revert "md/raid10: improve discard request for far layout"
Revert "dm raid: remove unnecessary discard limits for raid10"
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|
The PAT bit is in different locations for 4k and 2M/1G page table
entries.
Add a definition for _PAGE_LARGE_CACHE_MASK to represent the three
caching bits (PWT, PCD, PAT), similar to _PAGE_CACHE_MASK for 4k pages,
and use it in the definition of PMD_FLAGS_DEC_WP to get the correct PAT
index for write-protected pages.
Fixes: 6ebcb060713f ("x86/mm: Add support to encrypt the kernel in-place")
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Borislav Petkov <bp@suse.de>
Tested-by: Tom Lendacky <thomas.lendacky@amd.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20201111160946.147341-1-nivedita@alum.mit.edu
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In zonefs_file_dio_append(), the pages obtained using
bio_iov_iter_get_pages() are not released on completion of the
REQ_OP_APPEND BIO, nor when bio_iov_iter_get_pages() fails.
Furthermore, a call to bio_put() is missing when
bio_iov_iter_get_pages() fails.
Fix these resource leaks by adding BIO resource release code (bio_put()i
and bio_release_pages()) at the end of the function after the BIO
execution and add a jump to this resource cleanup code in case of
bio_iov_iter_get_pages() failure.
While at it, also fix the call to task_io_account_write() to be passed
the correct BIO size instead of bio_iov_iter_get_pages() return value.
Reported-by: Christoph Hellwig <hch@lst.de>
Fixes: 02ef12a663c7 ("zonefs: use REQ_OP_ZONE_APPEND for sync DIO")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
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|
The touchpad operates in Basic Mode by default in the Acer BIOS
setup, but some Aspire/TravelMate models require the i8042 to be
reset in order to be correctly detected.
Signed-off-by: Chris Chiu <chiu@endlessos.org>
Link: https://lore.kernel.org/r/20201207071250.15021-1-chiu@endlessos.org
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
|
|
This reverts commit 2628089b74d5a64bd0bcb5d247a18f78d7b6f4d0.
Matthew Ruffell reported data corruption in raid10 due to the changes
in discard handling [1]. Revert these changes before we find a proper fix.
[1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907262/
Cc: Matthew Ruffell <matthew.ruffell@canonical.com>
Cc: Xiao Ni <xni@redhat.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
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This reverts commit 8650a889017cb1f6ea6813ccf83a2e9f6fa49dd3.
Matthew Ruffell reported data corruption in raid10 due to the changes
in discard handling [1]. Revert these changes before we find a proper fix.
[1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907262/
Cc: Matthew Ruffell <matthew.ruffell@canonical.com>
Cc: Xiao Ni <xni@redhat.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
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This reverts commit f046f5d0d79cdb968f219ce249e497fd1accf484.
Matthew Ruffell reported data corruption in raid10 due to the changes
in discard handling [1]. Revert these changes before we find a proper fix.
[1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907262/
Cc: Matthew Ruffell <matthew.ruffell@canonical.com>
Cc: Xiao Ni <xni@redhat.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
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This reverts commit bcc90d280465ebd51ab8688be86e1f00c62dccf9.
Matthew Ruffell reported data corruption in raid10 due to the changes
in discard handling [1]. Revert these changes before we find a proper fix.
[1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907262/
Cc: Matthew Ruffell <matthew.ruffell@canonical.com>
Cc: Xiao Ni <xni@redhat.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
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This reverts commit d3ee2d8415a6256c1c41e1be36e80e640c3e6359.
Matthew Ruffell reported data corruption in raid10 due to the changes
in discard handling [1]. Revert these changes before we find a proper fix.
[1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907262/
Cc: Matthew Ruffell <matthew.ruffell@canonical.com>
Cc: Xiao Ni <xni@redhat.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
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This reverts commit f0e90b6c663a7e3b4736cb318c6c7c589f152c28.
Matthew Ruffell reported data corruption in raid10 due to the changes
in discard handling [1]. Revert these changes before we find a proper fix.
[1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907262/
Cc: Matthew Ruffell <matthew.ruffell@canonical.com>
Cc: Xiao Ni <xni@redhat.com>
Cc: Mike Snitzer <snitzer@redhat.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
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Add maintainers info for new Marvell Prestera Ethernet switch driver.
Signed-off-by: Mickey Rachamim <mickeyr@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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|
TCA_FLOWER_KEY_MPLS_OPT_LSE_LABEL is a u32 attribute (MPLS label is
20 bits long).
Fixes the following bug:
$ tc filter add dev ethX ingress protocol mpls_uc \
flower mpls lse depth 2 label 256 \
action drop
$ tc filter show dev ethX ingress
filter protocol mpls_uc pref 49152 flower chain 0
filter protocol mpls_uc pref 49152 flower chain 0 handle 0x1
eth_type 8847
mpls
lse depth 2 label 0 <-- invalid label 0, should be 256
...
Fixes: 61aec25a6db5 ("cls_flower: Support filtering on multiple MPLS Label Stack Entries")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The "COMPUTE" was wrongly spelled as "CUSTOM".
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.9.x
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
1) Switch to RCU in x_tables to fix possible NULL pointer dereference,
from Subash Abhinov Kasiviswanathan.
2) Fix netlink dump of dynset timeouts later than 23 days.
3) Add comment for the indirect serialization of the nft commit mutex
with rtnl_mutex.
4) Remove bogus check for confirmed conntrack when matching on the
conntrack ID, from Brett Mastbergen.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2020-12-09
This series contains updates to igb, ixgbe, i40e, and ice drivers.
Sven Auhagen fixes issues with igb XDP: return correct error value in XDP
xmit back, increase header padding to include space for double VLAN, add
an extack error when Rx buffer is too small for frame size, set metasize if
it is set in xdp, change xdp_do_flush_map to xdp_do_flush, and update
trans_start to avoid possible Tx timeout.
Björn fixes an issue where an Rx buffer can be reused prematurely with
XDP redirect for ixgbe, i40e, and ice drivers.
The following are changes since commit 323a391a220c4a234cb1e678689d7f4c3b73f863:
can: isotp: isotp_setsockopt(): block setsockopt on bound sockets
and are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue 1GbE
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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To let userspace know what 'scancodes' should be used in EVIOCGKEYCODE
and EVIOCSKEYCODE ioctls, we should send EV_MSC/MSC_SCAN events in
addition to EV_KEY/KEY_* events. The driver already declared MSC_SCAN
capability, so it is only matter of actually sending the events.
Link: https://lore.kernel.org/r/X87aOaSptPTvZ3nZ@google.com
Acked-by: Rajat Jain <rajatja@google.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Tariq Toukan says:
====================
mlx4_en fixes
This patchset by Moshe contains fixes to the mlx4 Eth driver,
addressing issues in restart flow.
Patch 1 protects the restart task from being rescheduled while active.
Please queue for -stable >= v2.6.
Patch 2 reconstructs SQs stuck in error state, and adds prints for improved
debuggability.
Please queue for -stable >= v3.12.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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In case error CQE was found while polling TX CQ, the QP is in error
state and all posted WQEs will generate error CQEs without any data
transmitted. Fix it by reopening the channels, via same method used for
TX timeout handling.
In addition add some more info on error CQE and WQE for debug.
Fixes: bd2f631d7c60 ("net/mlx4_en: Notify user when TX ring in error state")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add restarting state flag to avoid scheduling another restart task while
such task is already running. Change task name from watchdog_task to
restart_task to better fit the task role.
Fixes: 1e338db56e5a ("mlx4_en: Fix a race at restart task")
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When cwnd is not a multiple of the TSO skb size of N*MSS, we can get
into persistent scenarios where we have the following sequence:
(1) ACK for full-sized skb of N*MSS arrives
-> tcp_write_xmit() transmit full-sized skb with N*MSS
-> move pacing release time forward
-> exit tcp_write_xmit() because pacing time is in the future
(2) TSQ callback or TCP internal pacing timer fires
-> try to transmit next skb, but TSO deferral finds remainder of
available cwnd is not big enough to trigger an immediate send
now, so we defer sending until the next ACK.
(3) repeat...
So we can get into a case where we never mark ourselves as
cwnd-limited for many seconds at a time, even with
bulk/infinite-backlog senders, because:
o In case (1) above, every time in tcp_write_xmit() we have enough
cwnd to send a full-sized skb, we are not fully using the cwnd
(because cwnd is not a multiple of the TSO skb size). So every time we
send data, we are not cwnd limited, and so in the cwnd-limited
tracking code in tcp_cwnd_validate() we mark ourselves as not
cwnd-limited.
o In case (2) above, every time in tcp_write_xmit() that we try to
transmit the "remainder" of the cwnd but defer, we set the local
variable is_cwnd_limited to true, but we do not send any packets, so
sent_pkts is zero, so we don't call the cwnd-limited logic to update
tp->is_cwnd_limited.
Fixes: ca8a22634381 ("tcp: make cwnd-limited checks measurement-based, and gentler")
Reported-by: Ingemar Johansson <ingemar.s.johansson@ericsson.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20201209035759.1225145-1-ncardwell.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The offending commit introduces a cleanup callback that is invoked
when the driver module is removed to clean up the tunnel device
flow block. But it returns on the first iteration of the for loop.
The remaining indirect flow blocks will never be freed.
Fixes: 1fac52da5942 ("net: flow_offload: consolidate indirect flow_block infrastructure")
CC: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Chris Mi <cmi@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
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For DCTCP, we have to retain the ECT bits set by the congestion control
algorithm on the socket when reflecting syn TOS in syn-ack, in order to
make ECN work properly.
Fixes: ac8f1710c12b ("tcp: reflect tos value received in SYN to the socket")
Reported-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: Wei Wang <weiwan@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Syzbot reported a stack overflow in bitmap_from_arr32() called from
ethnl_parse_bitset() when bitset from netlink message is longer than
target bitmap length. While ethnl_compact_sanity_checks() makes sure that
trailing part is all zeros (i.e. the request does not try to touch bits
kernel does not recognize), we also need to cap change_bits to nbits so
that we don't try to write past the prepared bitmaps.
Fixes: 88db6d1e4f62 ("ethtool: add ethnl_parse_bitset() helper")
Reported-by: syzbot+9d39fa49d4df294aab93@syzkaller.appspotmail.com
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Link: https://lore.kernel.org/r/3487ee3a98e14cd526f55b6caaa959d2dcbcad9f.1607465316.git.mkubecek@suse.cz
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Changed a configuration in the flows to align with
architecture requirements to achieve S0i3.2 substate.
This helps both i219V and i219LM configurations.
Also fixed a typo in the previous commit 632fbd5eb5b0
("e1000e: fix S0ix flows for cable connected case").
Fixes: 632fbd5eb5b0 ("e1000e: fix S0ix flows for cable connected case").
Signed-off-by: Vitaly Lifshits <vitaly.lifshits@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Link: https://lore.kernel.org/r/20201208185632.151052-1-mario.limonciello@dell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The page recycle code, incorrectly, relied on that a page fragment
could not be freed inside xdp_do_redirect(). This assumption leads to
that page fragments that are used by the stack/XDP redirect can be
reused and overwritten.
To avoid this, store the page count prior invoking xdp_do_redirect().
Fixes: efc2214b6047 ("ice: Add support for XDP")
Reported-and-analyzed-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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The page recycle code, incorrectly, relied on that a page fragment
could not be freed inside xdp_do_redirect(). This assumption leads to
that page fragments that are used by the stack/XDP redirect can be
reused and overwritten.
To avoid this, store the page count prior invoking xdp_do_redirect().
Fixes: 6453073987ba ("ixgbe: add initial support for xdp redirect")
Reported-and-analyzed-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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The page recycle code, incorrectly, relied on that a page fragment
could not be freed inside xdp_do_redirect(). This assumption leads to
that page fragments that are used by the stack/XDP redirect can be
reused and overwritten.
To avoid this, store the page count prior invoking xdp_do_redirect().
Longer explanation:
Intel NICs have a recycle mechanism. The main idea is that a page is
split into two parts. One part is owned by the driver, one part might
be owned by someone else, such as the stack.
t0: Page is allocated, and put on the Rx ring
+---------------
used by NIC ->| upper buffer
(rx_buffer) +---------------
| lower buffer
+---------------
page count == USHRT_MAX
rx_buffer->pagecnt_bias == USHRT_MAX
t1: Buffer is received, and passed to the stack (e.g.)
+---------------
| upper buff (skb)
+---------------
used by NIC ->| lower buffer
(rx_buffer) +---------------
page count == USHRT_MAX
rx_buffer->pagecnt_bias == USHRT_MAX - 1
t2: Buffer is received, and redirected
+---------------
| upper buff (skb)
+---------------
used by NIC ->| lower buffer
(rx_buffer) +---------------
Now, prior calling xdp_do_redirect():
page count == USHRT_MAX
rx_buffer->pagecnt_bias == USHRT_MAX - 2
This means that buffer *cannot* be flipped/reused, because the skb is
still using it.
The problem arises when xdp_do_redirect() actually frees the
segment. Then we get:
page count == USHRT_MAX - 1
rx_buffer->pagecnt_bias == USHRT_MAX - 2
From a recycle perspective, the buffer can be flipped and reused,
which means that the skb data area is passed to the Rx HW ring!
To work around this, the page count is stored prior calling
xdp_do_redirect().
Note that this is not optimal, since the NIC could actually reuse the
"lower buffer" again. However, then we need to track whether
XDP_REDIRECT consumed the buffer or not.
Fixes: d9314c474d4f ("i40e: add support for XDP_REDIRECT")
Reported-and-analyzed-by: Li RongQing <lirongqing@baidu.com>
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: George Kuruvinakunnel <george.kuruvinakunnel@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Since we share the transmit queue with the network stack,
it is possible that we run into a transmit queue timeout.
This will reset the queue.
This happens under high load when XDP is using the
transmit queue pretty much exclusively.
netdev_start_xmit() sets the trans_start variable of the
transmit queue to jiffies which is later utilized by dev_watchdog(),
so to avoid timeout, let stack know that XDP xmit happened by
bumping the trans_start within XDP Tx routines to jiffies.
Fixes: 9cbc948b5a20 ("igb: add XDP support")
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Since it is a new XDP implementation change xdp_do_flush_map
to xdp_do_flush.
Fixes: 9cbc948b5a20 ("igb: add XDP support")
Suggested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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add metasize if it is set in xdp
Fixes: 9cbc948b5a20 ("igb: add XDP support")
Suggested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Add an extack error message when the RX buffer size is too small
for the frame size.
Fixes: 9cbc948b5a20 ("igb: add XDP support")
Suggested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Increase the packet header padding to include double VLAN tagging.
This patch uses a macro for this.
Fixes: 9cbc948b5a20 ("igb: add XDP support")
Suggested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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The igb XDP xmit back function should only return
defined error codes.
Fixes: 9cbc948b5a20 ("igb: add XDP support")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"There are a few more PHY mode changes for allwinner SoC based boards
with a Realtek PHY after the driver changed its behavior, I assume
there will be more of these in the future. Also on for Allwinner, the
Banana Pi M2 board had a regression that led to some devices not
working because of a slightly incorrect voltage being applied.
By popular demand, I picked up a change from Krzysztof Kozlowski to
actually list the SoC tree in the MAINTAINERS file. We don't want to
get Cc'd on normal patches that are picked up by platform maintainers,
but the lack of an entry has led to confusion in the past.
All the other changes are fairly benign, fixing boot-time or
compile-time warning messages in various places:
- A dtc warning on the OLPC XO-1.75
- A boot-time warning on i.MX6 wandboard
- A harmless compile-time warning
- A regression causing one of the i.MX6 SoCs to be identified as
another
- Missing SoC identification of Allwinner V3 and S3"
* tag 'arm-soc-fixes-v5.10-4b' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
firmware: xilinx: Mark pm_api_features_map with static keyword
ARM: dts: mmp2-olpc-xo-1-75: clear the warnings when make dtbs
MAINTAINERS: add a limited ARM and ARM64 SoC entry
MAINTAINERS: correct SoC Git address (formerly: arm-soc)
ARM: keystone: remove SECTION_SIZE_BITS/MAX_PHYSMEM_BITS
arm64: dts: allwinner: H5: NanoPi Neo Plus2: phy-mode rgmii-id
arm64: dts: allwinner: A64 Sopine: phy-mode rgmii-id
ARM: dts: imx6qdl-kontron-samx6i: fix I2C_PM scl pin
ARM: dts: imx6qdl-wandboard-revd1: Remove PAD_GPIO_6 from enetgrp
ARM: imx: Use correct SRC base address
ARM: dts: sun7i: pcduino3-nano: enable RGMII RX/TX delay on PHY
ARM: dts: sun8i: v3s: fix GIC node memory range
ARM: dts: sun8i: v40: bananapi-m2-berry: Fix ethernet node
ARM: dts: sun8i: r40: bananapi-m2-berry: Fix dcdc1 regulator
ARM: dts: sun7i: bananapi: Enable RGMII RX/TX delay on Ethernet PHY
ARM: dts: s3: pinecube: align compatible property to other S3 boards
ARM: sunxi: Add machine match for the Allwinner V3 SoC
arm64: dts: allwinner: h6: orangepi-one-plus: Fix ethernet
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This reverts commit 4179b00c04d1 ("geneve: pull IP header before ECN decapsulation").
Eric says: "network header should have been pulled already before
hitting geneve_rx()". Let's revert the syzbot fix since it's causing
more harm than good, and revisit.
Suggested-by: Eric Dumazet <edumazet@google.com>
Reported-by: Jianlin Shi <jishi@redhat.com>
Fixes: 4179b00c04d1 ("geneve: pull IP header before ECN decapsulation")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=210569
Link: https://lore.kernel.org/netdev/CANn89iJVWfb=2i7oU1=D55rOyQnBbbikf+Mc6XHMkY7YX-yGEw@mail.gmail.com/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Fix the following sparse warning:
drivers/firmware/xilinx/zynqmp.c:32:1: warning: symbol 'pm_api_features_map' was not declared. Should it be static?
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Link: https://lore.kernel.org/r/1606823513-121578-1-git-send-email-zou_wei@huawei.com
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The check_spi_bus_bridge() in scripts/dtc/checks.c requires that the node
have "spi-slave" property must with "#address-cells = <0>" and
"#size-cells = <0>". But currently both "#address-cells" and "#size-cells"
properties are deleted, the corresponding default values are 2 and 1. As a
result, the check fails and below warnings is displayed.
arch/arm/boot/dts/mmp2.dtsi:472.23-480.6: Warning (spi_bus_bridge): \
/soc/apb@d4000000/spi@d4037000: incorrect #address-cells for SPI bus
also defined at arch/arm/boot/dts/mmp2-olpc-xo-1-75.dts:225.7-237.3
arch/arm/boot/dts/mmp2.dtsi:472.23-480.6: Warning (spi_bus_bridge): \
/soc/apb@d4000000/spi@d4037000: incorrect #size-cells for SPI bus
also defined at arch/arm/boot/dts/mmp2-olpc-xo-1-75.dts:225.7-237.3
arch/arm/boot/dts/mmp2-olpc-xo-1-75.dtb: Warning (spi_bus_reg): \
Failed prerequisite 'spi_bus_bridge'
Because the value of "#size-cells" is already defined as zero in the node
"ssp3: spi@d4037000" in arch/arm/boot/dts/mmp2.dtsi. So we only need to
explicitly add "#address-cells = <0>" and keep "#size-cells" no change.
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20201207084752.1665-2-thunder.leizhen@huawei.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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If cm_create_timewait_info() fails, the timewait_info pointer will contain
an error value and will be used in cm_remove_remote() later.
general protection fault, probably for non-canonical address 0xdffffc0000000024: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0×0000000000000120-0×0000000000000127]
CPU: 2 PID: 12446 Comm: syz-executor.3 Not tainted 5.10.0-rc5-5d4c0742a60e #27
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
RIP: 0010:cm_remove_remote.isra.0+0x24/0×170 drivers/infiniband/core/cm.c:978
Code: 84 00 00 00 00 00 41 54 55 53 48 89 fb 48 8d ab 2d 01 00 00 e8 7d bf 4b fe 48 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 48 89 ea 83 e2 07 38 d0 7f 08 84 c0 0f 85 fc 00 00 00
RSP: 0018:ffff888013127918 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: fffffffffffffff4 RCX: ffffc9000a18b000
RDX: 0000000000000024 RSI: ffffffff82edc573 RDI: fffffffffffffff4
RBP: 0000000000000121 R08: 0000000000000001 R09: ffffed1002624f1d
R10: 0000000000000003 R11: ffffed1002624f1c R12: ffff888107760c70
R13: ffff888107760c40 R14: fffffffffffffff4 R15: ffff888107760c9c
FS: 00007fe1ffcc1700(0000) GS:ffff88811a600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ff21000 CR3: 000000010f504001 CR4: 0000000000370ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
cm_destroy_id+0x189/0×15b0 drivers/infiniband/core/cm.c:1155
cma_connect_ib drivers/infiniband/core/cma.c:4029 [inline]
rdma_connect_locked+0x1100/0×17c0 drivers/infiniband/core/cma.c:4107
rdma_connect+0x2a/0×40 drivers/infiniband/core/cma.c:4140
ucma_connect+0x277/0×340 drivers/infiniband/core/ucma.c:1069
ucma_write+0x236/0×2f0 drivers/infiniband/core/ucma.c:1724
vfs_write+0x220/0×830 fs/read_write.c:603
ksys_write+0x1df/0×240 fs/read_write.c:658
do_syscall_64+0x33/0×40 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fixes: a977049dacde ("[PATCH] IB: Add the kernel CM implementation")
Link: https://lore.kernel.org/r/20201204064205.145795-1-leon@kernel.org
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Reported-by: Amit Matityahu <mitm@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull iommu fix from Will Deacon:
"Fix interrupt table length definition for AMD IOMMU.
It's actually a fix for a fix, where the size of the interrupt
remapping table was increased but a related constant for the
size of the interrupt table was forgotten"
* tag 'iommu-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
iommu/amd: Set DTE[IntTabLen] to represent 512 IRTEs
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The isotp socket can be widely configured in its behaviour regarding addressing
types, fill-ups, receive pattern tests and link layer length. Usually all
these settings need to be fixed before bind() and can not be changed
afterwards.
This patch adds a check to enforce the common usage pattern.
Fixes: e057dd3fc20f ("can: add ISO 15765-2:2016 transport protocol")
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Tested-by: Thomas Wagner <thwa1@web.de>
Link: https://lore.kernel.org/r/20201203140604.25488-2-socketcan@hartkopp.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/r/20201204133508.742120-3-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Toke Høiland-Jørgensen says:
====================
This series restores the test_offload.py selftest to working order. It seems a
number of subtle behavioural changes have crept into various subsystems which
broke test_offload.py in a number of ways. Most of these are fairly benign
changes where small adjustments to the test script seems to be the best fix,
but one is an actual kernel bug that I've observed in the wild caused by a bad
interaction between xdp_attachment_flags_ok() and the rework of XDP program
handling in the core netdev code.
Patch 1 fixes the bug by removing xdp_attachment_flags_ok(), and the reminder of
the patches are adjustments to test_offload.py, including a new feature for
netdevsim to force a BPF verification fail. Please see the individual patches
for details.
Changelog:
v4:
- Accidentally truncated the Fixes: hashes in patches 3/4 to 11 chars
v3:
- Add Fixes: tags
v2:
- Replace xdp_attachment_flags_ok() with a check in dev_xdp_attach()
- Better packing of struct nsim_dev
====================
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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A few of the tests in test_offload.py expects to see a certain number of
maps created, and checks this by counting the number of maps returned by
bpftool. There is already a filter that will remove any maps already there
at the beginning of the test, but bpftool now creates a map for the PID
iterator rodata on each invocation, which makes the map count wrong. Fix
this by also filtering the pid_iter.rodata map by name when counting.
Fixes: d53dee3fe013 ("tools/bpftool: Show info for processes holding BPF map/prog/link/btf FDs")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/bpf/160752226387.110217.9887866138149423444.stgit@toke.dk
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When setting the ethtool feature flag fails (as expected for the test), the
kernel now tracks that the feature was requested to be 'off' and refuses to
subsequently disable it again. So reset it back to 'on' so a subsequent
disable (that's not supposed to fail) can succeed.
Fixes: 417ec26477a5 ("selftests/bpf: add offload test based on netdevsim")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/bpf/160752226280.110217.10696241563705667871.stgit@toke.dk
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Commit 7f0a838254bd ("bpf, xdp: Maintain info on attached XDP BPF programs
in net_device") changed the case of some of the extack messages being
returned when attaching of XDP programs failed. This broke test_offload.py,
so let's fix the test to reflect this.
Fixes: 7f0a838254bd ("bpf, xdp: Maintain info on attached XDP BPF programs in net_device")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/bpf/160752226175.110217.11214100824416344952.stgit@toke.dk
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Since commit 6f8a57ccf851 ("bpf: Make verifier log more relevant by
default"), the verifier discards log messages for successfully-verified
programs. This broke test_offload.py which is looking for a verification
message from the driver callback. Change test_offload.py to use the toggle
in netdevsim to make the verification fail before looking for the
verification message.
Fixes: 6f8a57ccf851 ("bpf: Make verifier log more relevant by default")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/bpf/160752226069.110217.12370824996153348073.stgit@toke.dk
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This adds a new debugfs toggle ('bpf_bind_verifier_accept') that can be
used to make netdevsim reject BPF programs from being accepted by the
verifier. If this toggle (which defaults to true) is set to false,
nsim_bpf_verify_insn() will return EOPNOTSUPP on the last
instruction (after outputting the 'Hello from netdevsim' verifier message).
This makes it possible to check the verification callback in the driver
from test_offload.py in selftests, since the verifier now clears the
verifier log on a successful load, hiding the message from the driver.
Fixes: 6f8a57ccf851 ("bpf: Make verifier log more relevant by default")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/bpf/160752225964.110217.12584017165318065332.stgit@toke.dk
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Since we just removed the xdp_attachment_flags_ok() callback, also remove
the check for it in test_offload.py, and replace it with a test for the new
ambiguity-avoid check when multiple programs are loaded.
Fixes: 7f0a838254bd ("bpf, xdp: Maintain info on attached XDP BPF programs in net_device")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/bpf/160752225858.110217.13036901876869496246.stgit@toke.dk
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Since commit 7f0a838254bd ("bpf, xdp: Maintain info on attached XDP BPF
programs in net_device"), the XDP program attachment info is now maintained
in the core code. This interacts badly with the xdp_attachment_flags_ok()
check that prevents unloading an XDP program with different load flags than
it was loaded with. In practice, two kinds of failures are seen:
- An XDP program loaded without specifying a mode (and which then ends up
in driver mode) cannot be unloaded if the program mode is specified on
unload.
- The dev_xdp_uninstall() hook always calls the driver callback with the
mode set to the type of the program but an empty flags argument, which
means the flags_ok() check prevents the program from being removed,
leading to bpf prog reference leaks.
The original reason this check was added was to avoid ambiguity when
multiple programs were loaded. With the way the checks are done in the core
now, this is quite simple to enforce in the core code, so let's add a check
there and get rid of the xdp_attachment_flags_ok() callback entirely.
Fixes: 7f0a838254bd ("bpf, xdp: Maintain info on attached XDP BPF programs in net_device")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/bpf/160752225751.110217.10267659521308669050.stgit@toke.dk
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For BOs imported from outside of amdgpu, setting of amdgpu_gem_object_funcs
was missing in amdgpu_dma_buf_create_obj. Fix by refactoring BO creation
and amdgpu_gem_object_funcs setting into single function called
from both code paths.
Fixes: d693def4fd1c ("drm: Remove obsolete GEM and PRIME callbacks from struct drm_driver")
v2: Use use amdgpu_gem_object_create() directly
v3: fix warning
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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If we need to keep the stolen vga memory, make sure it is
at least as big as the legacy vga size.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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When using old WORKLOAD_PPLIB setting in smu10.h, there is problem that
it can't be able to switch to mak gpu clk during compute workload.
It needs to update WORKLOAD_PPLIB setting to fix this issue.
Signed-off-by: Changfeng <Changfeng.Zhu@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Release dmabuf reference before returning from kfd_ioctl_import_dmabuf.
amdgpu_amdkfd_gpuvm_import_dmabuf takes a reference to the underlying
GEM BO and doesn't keep the reference to the dmabuf wrapper.
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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each sdma instance fw_version and feature_version
should be set right value when asic type isn't
between SIENNA_CICHILD and CHIP_DIMGREY_CAVEFISH
Signed-off-by: Stanley.Yang <Stanley.Yang@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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[Why]
Without additional HostVM Latency, Renoir takes 2us longer to exit
self-refresh. This causes underflow in certain cases.
[How]
Add table for Renoir with updated sr exit latencies for WM set A.
Signed-off-by: Sung Lee <sung.lee@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Acked-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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[Why]
At very high pixel clock, bandwidth calculation exceeds 32 bit size
and overflow value. This causes the resulting selection of link rate
to be inaccurate.
[How]
Change order of operation and use fixed point to deal with integer
accuracy. Also address bug found when forcing link rate.
Signed-off-by: Chris Park <Chris.Park@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Eryk Brol <eryk.brol@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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There is still a warning when CONFIG_DEBUG_FS is disabled:
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:1145:13: error: 'amdgpu_ras_debugfs_create_ctrl_node' defined but not used [-Werror=unused-function]
1145 | static void amdgpu_ras_debugfs_create_ctrl_node(struct amdgpu_device *adev)
Change the code again to make the compiler actually drop
this code but not warn about it.
Fixes: ae2bf61ff39e ("drm/amdgpu: guard ras debugfs creation/removal based on CONFIG_DEBUG_FS")
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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To avoid a recently added warning:
Bogus possible_crtcs: [ENCODER:65:TMDS-65] possible_crtcs=0xf (full crtc mask=0x7)
WARNING: CPU: 3 PID: 439 at drivers/gpu/drm/drm_mode_config.c:617 drm_mode_config_validate+0x178/0x200 [drm]
In this case the warning is harmless, but confusing to users.
Fixes: 0df108237433 ("drm: Validate encoder->possible_crtcs")
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=209123
Reviewed-by: Daniel Vetter <daniel@ffwll.ch>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Since commit 656c8e9cc1ba ("netfilter: conntrack: Use consistent ct id
hash calculation") the ct id will not change from initialization to
confirmation. Removing the confirmation check allows for things like
adding an element to a 'typeof ct id' set in prerouting upon reception
of the first packet of a new connection, and then being able to
reference that set consistently both before and after the connection
is confirmed.
Fixes: 656c8e9cc1ba ("netfilter: conntrack: Use consistent ct id hash calculation")
Signed-off-by: Brett Mastbergen <brett.mastbergen@gmail.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Commit 9e2369c06c8a18 ("xen: add helpers to allocate unpopulated
memory") introduced usage of ZONE_DEVICE memory for foreign memory
mappings.
Unfortunately this collides with using page->lru for Xen backend
private page caches.
Fix that by using page->zone_device_data instead.
Cc: <stable@vger.kernel.org> # 5.9
Fixes: 9e2369c06c8a18 ("xen: add helpers to allocate unpopulated memory")
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovksy@oracle.com>
Reviewed-by: Jason Andryuk <jandryuk@gmail.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Instead of having similar helpers in multiple backend drivers use
common helpers for caching pages allocated via gnttab_alloc_pages().
Make use of those helpers in blkback and scsiback.
Cc: <stable@vger.kernel.org> # 5.9
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovksy@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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EIC controller have unfixed numbers of banks on different Spreadtrum SoCs,
and each bank has its own base address, the loop of getting there base
address in driver should break if the resource gotten via
platform_get_resource() is NULL already. The later ones would be all NULL
even if the loop continues.
Fixes: 25518e024e3a ("gpio: Add Spreadtrum EIC driver support")
Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
Link: https://lore.kernel.org/r/20201209055106.840100-1-zhang.lyra@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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membarrier()'s MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE is documented as
syncing the core on all sibling threads but not necessarily the calling
thread. This behavior is fundamentally buggy and cannot be used safely.
Suppose a user program has two threads. Thread A is on CPU 0 and thread B
is on CPU 1. Thread A modifies some text and calls
membarrier(MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE).
Then thread B executes the modified code. If, at any point after
membarrier() decides which CPUs to target, thread A could be preempted and
replaced by thread B on CPU 0. This could even happen on exit from the
membarrier() syscall. If this happens, thread B will end up running on CPU
0 without having synced.
In principle, this could be fixed by arranging for the scheduler to issue
sync_core_before_usermode() whenever switching between two threads in the
same mm if there is any possibility of a concurrent membarrier() call, but
this would have considerable overhead. Instead, make membarrier() sync the
calling CPU as well.
As an optimization, this avoids an extra smp_mb() in the default
barrier-only mode and an extra rseq preempt on the caller.
Fixes: 70216e18e519 ("membarrier: Provide core serializing command, *_SYNC_CORE")
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://lore.kernel.org/r/250ded637696d490c69bef1877148db86066881c.1607058304.git.luto@kernel.org
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membarrier() does not explicitly sync_core() remote CPUs; instead, it
relies on the assumption that an IPI will result in a core sync. On x86,
this may be true in practice, but it's not architecturally reliable. In
particular, the SDM and APM do not appear to guarantee that interrupt
delivery is serializing. While IRET does serialize, IPI return can
schedule, thereby switching to another task in the same mm that was
sleeping in a syscall. The new task could then SYSRET back to usermode
without ever executing IRET.
Make this more robust by explicitly calling sync_core_before_usermode()
on remote cores. (This also helps people who search the kernel tree for
instances of sync_core() and sync_core_before_usermode() -- one might be
surprised that the core membarrier code doesn't currently show up in a
such a search.)
Fixes: 70216e18e519 ("membarrier: Provide core serializing command, *_SYNC_CORE")
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/776b448d5f7bd6b12690707f5ed67bcda7f1d427.1607058304.git.luto@kernel.org
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It seems that most RSEQ membarrier users will expect any stores done before
the membarrier() syscall to be visible to the target task(s). While this
is extremely likely to be true in practice, nothing actually guarantees it
by a strict reading of the x86 manuals. Rather than providing this
guarantee by accident and potentially causing a problem down the road, just
add an explicit barrier.
Fixes: 70216e18e519 ("membarrier: Provide core serializing command, *_SYNC_CORE")
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/d3e7197e034fa4852afcf370ca49c30496e58e40.1607058304.git.luto@kernel.org
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sync_core_before_usermode() had an incorrect optimization. If the kernel
returns from an interrupt, it can get to usermode without IRET. It just has
to schedule to a different task in the same mm and do SYSRET. Fortunately,
there were no callers of sync_core_before_usermode() that could have had
in_irq() or in_nmi() equal to true, because it's only ever called from the
scheduler.
While at it, clarify a related comment.
Fixes: 70216e18e519 ("membarrier: Provide core serializing command, *_SYNC_CORE")
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/5afc7632be1422f91eaf7611aaaa1b5b8580a086.1607058304.git.luto@kernel.org
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Mistakenly the buffers (input and output) become enabled together for a short
period of time during GPIO request. This is problematic, because instead of
initial motive to disable them in the commit af7e3eeb84e2
("pinctrl: intel: Disable input and output buffer when switching to GPIO"),
the driven value on the pin, which might be used as an IRQ line, brings
firmwares of some touch pads to an awkward state that needs a full power off
to recover. Fix this, as stated in the culprit commit, by disabling the buffers.
Fixes: af7e3eeb84e2 ("pinctrl: intel: Disable input and output buffer when switching to GPIO")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=210497
Reported-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20201208182403.40435-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Jann spotted the security hole due to race of mm ownership check.
If the task is sharing the mm_struct but goes through execve() before
mm_access(), it could skip process_madvise_behavior_valid check. That
makes *any advice hint* to reach into the remote process.
This patch removes the mm ownership check. With it, it will lose the
ability that local process could give *any* advice hint with vector
interface for some reason (e.g., performance). Since there is no
concrete example in upstream yet, it would be better to remove the
abiliity at this moment and need to review when such new advice comes
up.
Fixes: ecb8ac8b1f14 ("mm/madvise: introduce process_madvise() syscall: an external memory hinting API")
Reported-by: Jann Horn <jannh@google.com>
Suggested-by: Jann Horn <jannh@google.com>
Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Set up all the parameters required for SMU fan control if supported.
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=201539
Acked-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Helps me use a single account to sign off and send patches use
appropriate email redirection without needing to update MAINTAINERS.
Signed-off-by: KP Singh <kpsingh@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20201208214900.80684-1-kpsingh@kernel.org
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Before commit a337531b942b ("tcp: up initial rmem to 128KB and SYN rwin to around 64KB")
small tcp_rmem[1] values were overridden by tcp_fixup_rcvbuf() to accommodate various MSS.
This is no longer the case, and Hazem Mohamed Abuelfotoh reported
that DRS would not work for MTU 9000 endpoints receiving regular (1500 bytes) frames.
Root cause is that tcp_init_buffer_space() uses tp->rcv_wnd for upper limit
of rcvq_space.space computation, while it can select later a smaller
value for tp->rcv_ssthresh and tp->window_clamp.
ss -temoi on receiver would show :
skmem:(r0,rb131072,t0,tb46080,f0,w0,o0,bl0,d0) rcv_space:62496 rcv_ssthresh:56596
This means that TCP can not increase its window in tcp_grow_window(),
and that DRS can never kick.
Fix this by making sure that rcvq_space.space is not bigger than number of bytes
that can be held in TCP receive queue.
People unable/unwilling to change their kernel can work around this issue by
selecting a bigger tcp_rmem[1] value as in :
echo "4096 196608 6291456" >/proc/sys/net/ipv4/tcp_rmem
Based on an initial report and patch from Hazem Mohamed Abuelfotoh
https://lore.kernel.org/netdev/20201204180622.14285-1-abuehaze@amazon.com/
Fixes: a337531b942b ("tcp: up initial rmem to 128KB and SYN rwin to around 64KB")
Fixes: 041a14d26715 ("tcp: start receiver buffer autotuning sooner")
Reported-by: Hazem Mohamed Abuelfotoh <abuehaze@amazon.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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platform_get_resource() may fail and in this case a NULL dereference
will occur.
Fix it to use devm_platform_ioremap_resource() instead of calling
platform_get_resource() and devm_ioremap().
This is detected by Coccinelle semantic patch.
@@
expression pdev, res, n, t, e, e1, e2;
@@
res = \(platform_get_resource\|platform_get_resource_byname\)(pdev, t, n);
+ if (!res)
+ return -EINVAL;
... when != res == NULL
e = devm_ioremap(e1, res->start, e2);
Fixes: 8425c41d1ef7 ("net: ll_temac: Extend support to non-device-tree platforms")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
There's a memory leak in afs_parse_source() whereby multiple source=
parameters overwrite fc->source in the fs_context struct without freeing
the previously recorded source.
Fix this by only permitting a single source parameter and rejecting with
an error all subsequent ones.
This was caught by syzbot with the kernel memory leak detector, showing
something like the following trace:
unreferenced object 0xffff888114375440 (size 32):
comm "repro", pid 5168, jiffies 4294923723 (age 569.948s)
backtrace:
slab_post_alloc_hook+0x42/0x79
__kmalloc_track_caller+0x125/0x16a
kmemdup_nul+0x24/0x3c
vfs_parse_fs_string+0x5a/0xa1
generic_parse_monolithic+0x9d/0xc5
do_new_mount+0x10d/0x15a
do_mount+0x5f/0x8e
__do_sys_mount+0xff/0x127
do_syscall_64+0x2d/0x3a
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Fixes: 13fcc6837049 ("afs: Add fs_context support")
Reported-by: syzbot+86dc6632faaca40133ab@syzkaller.appspotmail.com
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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|
`tipc_node_apply_property` does a null check on a `tipc_link_entry`
pointer but also accesses the same pointer out of the null check block.
This triggers a warning on Coverity Static Analyzer because we're
implying that `e->link` can BE null.
Move "Update MTU for node link entry" line into if block to make sure
that we're not in a state that `e->link` is null.
Signed-off-by: Cengiz Can <cengiz@kernel.wtf>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/fixes
A few more RGMII-ID fixes
* tag 'sunxi-fixes-for-5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
arm64: dts: allwinner: H5: NanoPi Neo Plus2: phy-mode rgmii-id
arm64: dts: allwinner: A64 Sopine: phy-mode rgmii-id
Link: https://lore.kernel.org/r/2a351c9c-470f-4c5e-ba37-80065ae0586d.lettre@localhost
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
|
|
Pull sparc64 csum fix from Al Viro:
"Fix for a brown paperbag regression in sparc64"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
[regression fix] really dumb fuckup in sparc64 __csum_partial_copy() changes
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|
This reverts commit 103fbf8e4020845e4fcf63819288cedb092a3c91.
It turns out that it causes long boot-time latencies (to the point of
timeouts and failed boots).
The cause is the increase in request queues, and a fix for that is
queued up for 5.11, but we're reverting this commit that triggered the
problem for now.
Reported-and-tested-by: John Garry <john.garry@huawei.com>
Reported-and-tested-by: Julia Lawall <julia.lawall@inria.fr>
Reported-by: Qian Cai <cai@redhat.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/linux-scsi/fe3dff7dae4494e5a88caffbb4d877bbf472dceb.camel@redhat.com/
Link: https://lore.kernel.org/lkml/alpine.DEB.2.22.394.2012081813310.2680@hadrien/
Link: https://lore.kernel.org/linux-block/20201203012638.543321-1-ming.lei@redhat.com/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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|
Joakim Zhang says:
====================
patches for stmmac
A patch set for stmmac, fix some driver issues.
ChangeLogs:
V1->V2:
* add Fixes tag.
* add patch 5/5 into this patch set.
V2->V3:
* rebase to latest net tree where fixes go.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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|
The current IP register MAC_HW_Feature1[ADDR64] only defines
32/40/64 bit width, but some SOCs support others like i.MX8MP
support 34 bits but it maps to 40 bits width in MAC_HW_Feature1[ADDR64].
So overwrite dma_cap.addr64 according to HW real design.
Fixes: 94abdad6974a ("net: ethernet: dwmac: add ethernet glue logic for NXP imx8 chip")
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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|
There have chance to re-enable the eee_ctrl_timer and fire the timer
in napi callback after delete the timer in .stmmac_release(), which
introduces to access eee registers in the timer function after clocks
are disabled then causes system hang. Found this issue when do
suspend/resume and reboot stress test.
It is safe to delete the timer after napi disabled and disable lpi mode.
Fixes: d765955d2ae0b ("stmmac: add the Energy Efficient Ethernet support")
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
When do suspend/resume test, there have WARN_ON() log dump from
stmmac_xmit() funciton, the code logic:
entry = tx_q->cur_tx;
first_entry = entry;
WARN_ON(tx_q->tx_skbuff[first_entry]);
In normal case, tx_q->tx_skbuff[txq->cur_tx] should be NULL because
the skb should be handled and freed in stmmac_tx_clean().
But stmmac_resume() reset queue parameters like below, skb buffers
may not be freed.
tx_q->cur_tx = 0;
tx_q->dirty_tx = 0;
So free tx skb buffer in stmmac_resume() to avoid warning and
memory leak.
log:
[ 46.139824] ------------[ cut here ]------------
[ 46.144453] WARNING: CPU: 0 PID: 0 at drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:3235 stmmac_xmit+0x7a0/0x9d0
[ 46.154969] Modules linked in: crct10dif_ce vvcam(O) flexcan can_dev
[ 46.161328] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G O 5.4.24-2.1.0+g2ad925d15481 #1
[ 46.170369] Hardware name: NXP i.MX8MPlus EVK board (DT)
[ 46.175677] pstate: 80000005 (Nzcv daif -PAN -UAO)
[ 46.180465] pc : stmmac_xmit+0x7a0/0x9d0
[ 46.184387] lr : dev_hard_start_xmit+0x94/0x158
[ 46.188913] sp : ffff800010003cc0
[ 46.192224] x29: ffff800010003cc0 x28: ffff000177e2a100
[ 46.197533] x27: ffff000176ef0840 x26: ffff000176ef0090
[ 46.202842] x25: 0000000000000000 x24: 0000000000000000
[ 46.208151] x23: 0000000000000003 x22: ffff8000119ddd30
[ 46.213460] x21: ffff00017636f000 x20: ffff000176ef0cc0
[ 46.218769] x19: 0000000000000003 x18: 0000000000000000
[ 46.224078] x17: 0000000000000000 x16: 0000000000000000
[ 46.229386] x15: 0000000000000079 x14: 0000000000000000
[ 46.234695] x13: 0000000000000003 x12: 0000000000000003
[ 46.240003] x11: 0000000000000010 x10: 0000000000000010
[ 46.245312] x9 : ffff00017002b140 x8 : 0000000000000000
[ 46.250621] x7 : ffff00017636f000 x6 : 0000000000000010
[ 46.255930] x5 : 0000000000000001 x4 : ffff000176ef0000
[ 46.261238] x3 : 0000000000000003 x2 : 00000000ffffffff
[ 46.266547] x1 : ffff000177e2a000 x0 : 0000000000000000
[ 46.271856] Call trace:
[ 46.274302] stmmac_xmit+0x7a0/0x9d0
[ 46.277874] dev_hard_start_xmit+0x94/0x158
[ 46.282056] sch_direct_xmit+0x11c/0x338
[ 46.285976] __qdisc_run+0x118/0x5f0
[ 46.289549] net_tx_action+0x110/0x198
[ 46.293297] __do_softirq+0x120/0x23c
[ 46.296958] irq_exit+0xb8/0xd8
[ 46.300098] __handle_domain_irq+0x64/0xb8
[ 46.304191] gic_handle_irq+0x5c/0x148
[ 46.307936] el1_irq+0xb8/0x180
[ 46.311076] cpuidle_enter_state+0x84/0x360
[ 46.315256] cpuidle_enter+0x34/0x48
[ 46.318829] call_cpuidle+0x18/0x38
[ 46.322314] do_idle+0x1e0/0x280
[ 46.325539] cpu_startup_entry+0x24/0x40
[ 46.329460] rest_init+0xd4/0xe0
[ 46.332687] arch_call_rest_init+0xc/0x14
[ 46.336695] start_kernel+0x420/0x44c
[ 46.340353] ---[ end trace bc1ee695123cbacd ]---
Fixes: 47dd7a540b8a0 ("net: add support for STMicroelectronics Ethernet controllers.")
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Start phylink instance and resume back the PHY to supply
RX clock to MAC before MAC layer initialization by calling
.stmmac_hw_setup(), since DMA reset depends on the RX clock,
otherwise DMA reset cost maximum timeout value then finally
timeout.
Fixes: 74371272f97f ("net: stmmac: Convert to phylink and remove phylib logic")
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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|
Current timeout value is not enough for gmac5 dma reset
on imx8mp platform, increase the timeout range.
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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|
~0U is -1, not 1
Reported-by: Anatoly Pugachev <matorola@gmail.com>
Tested-by: Anatoly Pugachev <matorola@gmail.com>
Fixes: fdf8bee96f9a "sparc64: propagate the calling convention changes down to __csum_partial_copy_...()"
X-brown-paperbag: yes
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
|
|
rtnl_mutex
Add an explicit comment in the code to describe the indirect
serialization of the holders of the commit_mutex with the rtnl_mutex.
Commit 90d2723c6d4c ("netfilter: nf_tables: do not hold reference on
netdevice from preparation phase") already describes this, but a comment
in this case is better for reference.
Reported-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
|
|
Pull seq_file fix from Al Viro:
"This fixes a regression introduced in this cycle wrt iov_iter based
variant for reading a seq_file"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fix return values of seq_read_iter()
|
|
Use nf_msecs_to_jiffies64 and nf_jiffies64_to_msecs as provided by
8e1102d5a159 ("netfilter: nf_tables: support timeouts larger than 23
days"), otherwise ruleset listing breaks.
Fixes: a8b1e36d0d1d ("netfilter: nft_dynset: fix element timeout for HZ != 1000")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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|
Don't try to adjust XFRM support flags if the bond device isn't yet
registered. Bad things can currently happen when netdev_change_features()
is called without having wanted_features fully filled in yet. This code
runs both on post-module-load mode changes, as well as at module init
time, and when run at module init time, it is before register_netdevice()
has been called and filled in wanted_features. The empty wanted_features
led to features also getting emptied out, which was definitely not the
intended behavior, so prevent that from happening.
Originally, I'd hoped to stop adjusting wanted_features at all in the
bonding driver, as it's documented as being something only the network
core should touch, but we actually do need to do this to properly update
both the features and wanted_features fields when changing the bond type,
or we get to a situation where ethtool sees:
esp-hw-offload: off [requested on]
I do think we should be using netdev_update_features instead of
netdev_change_features here though, so we only send notifiers when the
features actually changed.
Fixes: a3b658cfb664 ("bonding: allow xfrm offload setup post-module-load")
Reported-by: Ivan Vecera <ivecera@redhat.com>
Suggested-by: Ivan Vecera <ivecera@redhat.com>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Link: https://lore.kernel.org/r/20201205172229.576587-1-jarod@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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|
Put file as part of error handling when setting up io ctx to fix
memory leaks like the following one.
BUG: memory leak
unreferenced object 0xffff888101ea2200 (size 256):
comm "syz-executor355", pid 8470, jiffies 4294953658 (age 32.400s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
20 59 03 01 81 88 ff ff 80 87 a8 10 81 88 ff ff Y..............
backtrace:
[<000000002e0a7c5f>] kmem_cache_zalloc include/linux/slab.h:654 [inline]
[<000000002e0a7c5f>] __alloc_file+0x1f/0x130 fs/file_table.c:101
[<000000001a55b73a>] alloc_empty_file+0x69/0x120 fs/file_table.c:151
[<00000000fb22349e>] alloc_file+0x33/0x1b0 fs/file_table.c:193
[<000000006e1465bb>] alloc_file_pseudo+0xb2/0x140 fs/file_table.c:233
[<000000007118092a>] anon_inode_getfile fs/anon_inodes.c:91 [inline]
[<000000007118092a>] anon_inode_getfile+0xaa/0x120 fs/anon_inodes.c:74
[<000000002ae99012>] io_uring_get_fd fs/io_uring.c:9198 [inline]
[<000000002ae99012>] io_uring_create fs/io_uring.c:9377 [inline]
[<000000002ae99012>] io_uring_setup+0x1125/0x1630 fs/io_uring.c:9411
[<000000008280baad>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
[<00000000685d8cf0>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
Reported-by: syzbot+71c4697e27c99fddcf17@syzkaller.appspotmail.com
Fixes: 0f2122045b94 ("io_uring: don't rely on weak ->files references")
Cc: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Hillf Danton <hdanton@sina.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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|
In case of having so many PID results that they don't fit into a singe page
(4096) bytes, bpftool will erroneously conclude that it got corrupted data due
to 4096 not being a multiple of struct pid_iter_entry, so the last entry will
be partially truncated. Fix this by sizing the buffer to fit exactly N entries
with no truncation in the middle of record.
Fixes: d53dee3fe013 ("tools/bpftool: Show info for processes holding BPF map/prog/link/btf FDs")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20201204232002.3589803-1-andrii@kernel.org
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|
We checked the table size against a hardcoded number of entries, and
that number was excluding the special mocs registers at the end.
Fixes: 777a7717d60c ("drm/i915/gt: Program mocs:63 for cache eviction on gen9")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: <stable@vger.kernel.org> # v4.3+
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201127102540.13117-1-chris@chris-wilson.co.uk
(cherry picked from commit 444fbf5d7058099447c5366ba8bb60d610aeb44b)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
[backported and updated the Fixes sha]
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This patch fixes the slice count computation algorithm
for calculating the slice count based on Peak pixel rate
and the max slice width allowed on the DSC engines.
We need to ensure slice count > min slice count req
as per DP spec based on peak pixel rate and that it is
greater than min slice count based on the max slice width
advertised by DPCD. So use max of these two.
In the prev patch we were using min of these 2 causing it
to violate the max slice width limitation causing a blank
screen on 8K@60.
Fixes: d9218c8f6cf4 ("drm/i915/dp: Add helpers for Compressed BPP and Slice Count for DSC")
Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: <stable@vger.kernel.org> # v5.0+
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201204205804.25225-1-manasi.d.navare@intel.com
(cherry picked from commit d371d6ea92ad2a47f42bbcaa786ee5f6069c9c14)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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|
Currently the check that the unsigned size_t variable i is >= 0
is always true because the unsigned variable will never be negative,
causing the loop to run forever. Fix this by changing the
pre-decrement check to a zero check on i followed by a decrement of i.
Addresses-Coverity: ("Unsigned compared against 0")
Fixes: bfed6708d6c9 ("drm/i915: use vmap in shmem_pin_map")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20201002170354.94627-1-colin.king@canonical.com
(cherry picked from commit e70956a2498dc81d8f2522cba074f55ae910e13c)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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|
We currently presume that the engine reset is successful, cancelling the
expired preemption timer in the process. However, engine resets can
fail, leaving the timeout still pending and we will then respond to the
timeout again next time the tasklet fires. What we want is for the
failed engine reset to be promoted to a full device reset, which is
kicked by the heartbeat once the engine stops processing events.
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/1168
Fixes: 3a7a92aba8fb ("drm/i915/execlists: Force preemption")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: <stable@vger.kernel.org> # v5.5+
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201204151234.19729-2-chris@chris-wilson.co.uk
(cherry picked from commit d997e240ceecb4f732611985d3a939ad1bfc1893)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Before reseting the engine, we suspend the execution of the guilty
request, so that we can continue execution with a new context while we
slowly compress the captured error state for the guilty context. However,
if the reset fails, we will promptly attempt to reset the same request
again, and discover the ongoing capture. Ignore the second attempt to
suspend and capture the same request.
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/1168
Fixes: 32ff621fd744 ("drm/i915/gt: Allow temporary suspension of inflight requests")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: <stable@vger.kernel.org> # v5.7+
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201204151234.19729-1-chris@chris-wilson.co.uk
(cherry picked from commit b969540500bce60cf1cdfff5464388af32b9a553)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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In the course of discovering and closing many races with context closure
and execbuf submission, since commit 61231f6bd056 ("drm/i915/gem: Check
that the context wasn't closed during setup") we started checking that
the context was not closed by another userspace thread during the execbuf
ioctl. In doing so we cancelled the inflight request (by telling it to be
skipped), but kept reporting success since we do submit a request, albeit
one that doesn't execute. As the error is known before we return from the
ioctl, we can report the error we detect immediately, rather than leave
it on the fence status. With the immediate propagation of the error, it
is easier for userspace to handle.
Fixes: 61231f6bd056 ("drm/i915/gem: Check that the context wasn't closed during setup")
Testcase: igt/gem_ctx_exec/basic-close-race
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: <stable@vger.kernel.org> # v5.7+
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201203103432.31526-1-chris@chris-wilson.co.uk
(cherry picked from commit ba38b79eaeaeed29d2383f122d5c711ebf5ed3d1)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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There is a copy and paste bug in this code. It's supposed to check
"obj2" instead of checking "obj" a second time.
Fixes: 80f0b679d6f0 ("drm/i915: Add an implementation for i915_gem_ww_ctx locking, v2.")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Andi Shyti <andi.shyti@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/8ilneOcJAjwqU4t@mwand
(cherry picked from commit 14f2d7604f7ce4cb3d303aea17292d119dfafa75)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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When running concurrent iptables rules replacement with data, the per CPU
sequence count is checked after the assignment of the new information.
The sequence count is used to synchronize with the packet path without the
use of any explicit locking. If there are any packets in the packet path using
the table information, the sequence count is incremented to an odd value and
is incremented to an even after the packet process completion.
The new table value assignment is followed by a write memory barrier so every
CPU should see the latest value. If the packet path has started with the old
table information, the sequence counter will be odd and the iptables
replacement will wait till the sequence count is even prior to freeing the
old table info.
However, this assumes that the new table information assignment and the memory
barrier is actually executed prior to the counter check in the replacement
thread. If CPU decides to execute the assignment later as there is no user of
the table information prior to the sequence check, the packet path in another
CPU may use the old table information. The replacement thread would then free
the table information under it leading to a use after free in the packet
processing context-
Unable to handle kernel NULL pointer dereference at virtual
address 000000000000008e
pc : ip6t_do_table+0x5d0/0x89c
lr : ip6t_do_table+0x5b8/0x89c
ip6t_do_table+0x5d0/0x89c
ip6table_filter_hook+0x24/0x30
nf_hook_slow+0x84/0x120
ip6_input+0x74/0xe0
ip6_rcv_finish+0x7c/0x128
ipv6_rcv+0xac/0xe4
__netif_receive_skb+0x84/0x17c
process_backlog+0x15c/0x1b8
napi_poll+0x88/0x284
net_rx_action+0xbc/0x23c
__do_softirq+0x20c/0x48c
This could be fixed by forcing instruction order after the new table
information assignment or by switching to RCU for the synchronization.
Fixes: 80055dab5de0 ("netfilter: x_tables: make xt_replace_table wait until old rules are not used anymore")
Reported-by: Sean Tranchetti <stranche@codeaurora.org>
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Commit 6726fbff19bf ("pinctrl: aspeed: Fix GPI only function problem.")
fixes access to GPIO banks T and U on the AST2600. Both banks contain
input-only pins and the GPIO pin function is named GPITx and GPIUx
respectively. Unfortunately the fix had a negative impact on GPIO banks
D and E for the AST2400 and AST2500 where the GPIO pass-through
functions take similar "GPI"-style names. The net effect on the older
SoCs was that when the GPIO subsystem requested a pin in banks D or E be
muxed for GPIO, they were instead muxed for pass-through mode.
Mistakenly muxing pass-through mode e.g. breaks booting the host on
IBM's Witherspoon (AC922) platform where GPIOE0 is used for FSI.
Further exploit the names in the provided expression structure to
differentiate pass-through from pin-specific GPIO modes.
This follow-up fix gives the expected behaviour for the following tests:
Witherspoon BMC (AST2500):
1. Power-on the Witherspoon host
2. Request GPIOD1 be muxed via /sys/class/gpio/export
3. Request GPIOE1 be muxed via /sys/class/gpio/export
4. Request the balls for GPIOs E2 and E3 be muxed as GPIO pass-through
("GPIE2" mode) via a pinctrl hog in the devicetree
Rainier BMC (AST2600):
5. Request GPIT0 be muxed via /sys/class/gpio/export
6. Request GPIU0 be muxed via /sys/class/gpio/export
Together the tests demonstrate that all three pieces of functionality
(general GPIOs via 1, 2 and 3, input-only GPIOs via 5 and 6, pass-through
mode via 4) operate as desired across old and new SoCs.
Fixes: 9b92f5c51e9a ("pinctrl: aspeed: Fix GPI only function problem.")
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Tested-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Cc: Billy Tsai <billy_tsai@aspeedtech.com>
Cc: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20201126063337.489927-1-andrew@aj.id.au
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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As reported by sparse:
drivers/media/test-drivers/vidtv/vidtv_ts.h:47:47: warning: array of flexible structures
drivers/media/test-drivers/vidtv/vidtv_channel.c:458:54: warning: incorrect type in argument 3 (different base types)
drivers/media/test-drivers/vidtv/vidtv_channel.c:458:54: expected unsigned short [usertype] service_id
drivers/media/test-drivers/vidtv/vidtv_channel.c:458:54: got restricted __be16 [usertype] service_id
drivers/media/test-drivers/vidtv/vidtv_s302m.c:471 vidtv_s302m_encoder_init() warn: possible memory leak of 'e'
Address such warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
Steffen Klassert says:
====================
pull request (net): ipsec 2020-12-07
1) Sysbot reported fixes for the new 64/32 bit compat layer.
From Dmitry Safonov.
2) Fix a memory leak in xfrm_user_policy that was introduced
by adding the 64/32 bit compat layer. From Yu Kuai.
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec:
net: xfrm: fix memory leak in xfrm_user_policy()
xfrm/compat: Don't allocate memory with __GFP_ZERO
xfrm/compat: memset(0) 64-bit padding at right place
xfrm/compat: Translate by copying XFRMA_UNSPEC attribute
====================
Link: https://lore.kernel.org/r/20201207093937.2874932-1-steffen.klassert@secunet.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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For when managed interrupts are used (and shost->nr_hw_queues is set), a
fixed queue - set per-device - is still used for internal I/Os.
If all the CPUs mapped to that queue are offlined, then the completions for
that queue are not serviced and any internal I/Os will time out.
Fix by selecting a queue for internal I/Os from the queue mapped from the
current CPU in this scenario.
This is still not ideal as it does not deal with CPU hotplug for inflight
internal I/Os, and needs proper support from [0].
[0] https://lore.kernel.org/linux-scsi/20200703130122.111448-1-hare@suse.de/T/#m7d77d049b18f33a24ef206af69ebb66d07440556
Link: https://lore.kernel.org/r/1607347855-59091-1-git-send-email-john.garry@huawei.com
Fixes: 8d98416a55eb ("scsi: hisi_sas: Switch v3 hw to MQ")
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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When queuing I/O request to LLD, STS_RESOURCE may be returned because:
- Host is in recovery or blocked
- Target queue throttling or target is blocked
- LLD rejection
In these scenarios BLK_STS_DEV_RESOURCE is returned to the block layer to
avoid an unnecessary re-run of the queue. However, all of the requests
queued to this SCSI device may complete immediately after reading
'sdev->device_busy' and BLK_STS_DEV_RESOURCE is returned to block layer. In
that case the current I/O won't get a chance to get queued since it is
invisible at that time for both scsi_run_queue_async() and blk-mq's
RESTART.
Fix the issue by not returning BLK_STS_DEV_RESOURCE in this situation.
Link: https://lore.kernel.org/r/20201202100419.525144-1-ming.lei@redhat.com
Fixes: 86ff7c2a80cd ("blk-mq: introduce BLK_STS_DEV_RESOURCE")
Cc: Hannes Reinecke <hare@suse.com>
Cc: Sumit Saxena <sumit.saxena@broadcom.com>
Cc: Kashyap Desai <kashyap.desai@broadcom.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Ewan Milne <emilne@redhat.com>
Cc: Long Li <longli@microsoft.com>
Reported-by: John Garry <john.garry@huawei.com>
Tested-by: "chenxiang (M)" <chenxiang66@hisilicon.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The m250_sel mux clock uses bit 4 in the PRG_ETH0 register. Fix this by
shifting the PRG_ETH0_CLK_M250_SEL_MASK accordingly as the "mask" in
struct clk_mux expects the mask relative to the "shift" field in the
same struct.
While here, get rid of the PRG_ETH0_CLK_M250_SEL_SHIFT macro and use
__ffs() to determine it from the existing PRG_ETH0_CLK_M250_SEL_MASK
macro.
Fixes: 566e8251625304 ("net: stmmac: add a glue driver for the Amlogic Meson 8b / GXBB DWMAC")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20201205213207.519341-1-martin.blumenstingl@googlemail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add an 'of_node_put()' call when a tested device node is not available.
Fixes: 94ae899b2096 ("dpaa2-mac: add PCS support through the Lynx module")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Link: https://lore.kernel.org/r/20201206151339.44306-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When do cat /proc/net/netstat, the output isn't append with a new line, it looks like this:
[root@localhost ~]# cat /proc/net/netstat
...
MPTcpExt: 0 0 0 0 0 0 0 0 0 0 0 0 0[root@localhost ~]#
This is because in mptcp_seq_show(), if mptcp isn't in use, net->mib.mptcp_statistics is NULL,
so it just puts all 0 after "MPTcpExt:", and return, forgot the '\n'.
After this patch:
[root@localhost ~]# cat /proc/net/netstat
...
MPTcpExt: 0 0 0 0 0 0 0 0 0 0 0 0 0
[root@localhost ~]#
Fixes: fc518953bc9c8d7d ("mptcp: add and use MIB counter infrastructure")
Signed-off-by: Jianguo Wu <wujianguo@chinatelecom.cn>
Acked-by: Florian Westphal <fw@strlen.de>
Link: https://lore.kernel.org/r/142e2fd9-58d9-bb13-fb75-951cccc2331e@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When enabling multicast snooping, bridge module deadlocks on multicast_lock
if 1) IPv6 is enabled, and 2) there is an existing querier on the same L2
network.
The deadlock was caused by the following sequence: While holding the lock,
br_multicast_open calls br_multicast_join_snoopers, which eventually causes
IP stack to (attempt to) send out a Listener Report (in igmp6_join_group).
Since the destination Ethernet address is a multicast address, br_dev_xmit
feeds the packet back to the bridge via br_multicast_rcv, which in turn
calls br_multicast_add_group, which then deadlocks on multicast_lock.
The fix is to move the call br_multicast_join_snoopers outside of the
critical section. This works since br_multicast_join_snoopers only deals
with IP and does not modify any multicast data structures of the bridge,
so there's no need to hold the lock.
Steps to reproduce:
1. sysctl net.ipv6.conf.all.force_mld_version=1
2. have another querier
3. ip link set dev bridge type bridge mcast_snooping 0 && \
ip link set dev bridge type bridge mcast_snooping 1 < deadlock >
A typical call trace looks like the following:
[ 936.251495] _raw_spin_lock+0x5c/0x68
[ 936.255221] br_multicast_add_group+0x40/0x170 [bridge]
[ 936.260491] br_multicast_rcv+0x7ac/0xe30 [bridge]
[ 936.265322] br_dev_xmit+0x140/0x368 [bridge]
[ 936.269689] dev_hard_start_xmit+0x94/0x158
[ 936.273876] __dev_queue_xmit+0x5ac/0x7f8
[ 936.277890] dev_queue_xmit+0x10/0x18
[ 936.281563] neigh_resolve_output+0xec/0x198
[ 936.285845] ip6_finish_output2+0x240/0x710
[ 936.290039] __ip6_finish_output+0x130/0x170
[ 936.294318] ip6_output+0x6c/0x1c8
[ 936.297731] NF_HOOK.constprop.0+0xd8/0xe8
[ 936.301834] igmp6_send+0x358/0x558
[ 936.305326] igmp6_join_group.part.0+0x30/0xf0
[ 936.309774] igmp6_group_added+0xfc/0x110
[ 936.313787] __ipv6_dev_mc_inc+0x1a4/0x290
[ 936.317885] ipv6_dev_mc_inc+0x10/0x18
[ 936.321677] br_multicast_open+0xbc/0x110 [bridge]
[ 936.326506] br_multicast_toggle+0xec/0x140 [bridge]
Fixes: 4effd28c1245 ("bridge: join all-snoopers multicast address")
Signed-off-by: Joseph Huang <Joseph.Huang@garmin.com>
Acked-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Link: https://lore.kernel.org/r/20201204235628.50653-1-Joseph.Huang@garmin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Noticed some inconsistencies in packet statistics reporting.
This patch adds the missing Tx packet counter registers to
ethtool reporting and fixes the information strings for a
few of them.
Fixes: 16eb4c85c964 ("enetc: Add ethtool statistics")
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Link: https://lore.kernel.org/r/20201204171505.21389-1-claudiu.manoil@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Since commit c33165253492 ("powerpc: use non-set_fs based maccess
routines"), userspace access is not granted anymore when using
copy_from_kernel_nofault()
However, kthread_probe_data() uses copy_from_kernel_nofault()
to check validity of pointers. When the pointer is NULL,
it points to userspace, leading to a KUAP fault and triggering
the following big hammer warning many times when you request
a sysrq "show task":
[ 1117.202054] ------------[ cut here ]------------
[ 1117.202102] Bug: fault blocked by AP register !
[ 1117.202261] WARNING: CPU: 0 PID: 377 at arch/powerpc/include/asm/nohash/32/kup-8xx.h:66 do_page_fault+0x4a8/0x5ec
[ 1117.202310] Modules linked in:
[ 1117.202428] CPU: 0 PID: 377 Comm: sh Tainted: G W 5.10.0-rc5-01340-g83f53be2de31-dirty #4175
[ 1117.202499] NIP: c0012048 LR: c0012048 CTR: 00000000
[ 1117.202573] REGS: cacdbb88 TRAP: 0700 Tainted: G W (5.10.0-rc5-01340-g83f53be2de31-dirty)
[ 1117.202625] MSR: 00021032 <ME,IR,DR,RI> CR: 24082222 XER: 20000000
[ 1117.202899]
[ 1117.202899] GPR00: c0012048 cacdbc40 c2929290 00000023 c092e554 00000001 c09865e8 c092e640
[ 1117.202899] GPR08: 00001032 00000000 00000000 00014efc 28082224 100d166a 100a0920 00000000
[ 1117.202899] GPR16: 100cac0c 100b0000 1080c3fc 1080d685 100d0000 100d0000 00000000 100a0900
[ 1117.202899] GPR24: 100d0000 c07892ec 00000000 c0921510 c21f4440 0000005c c0000000 cacdbc80
[ 1117.204362] NIP [c0012048] do_page_fault+0x4a8/0x5ec
[ 1117.204461] LR [c0012048] do_page_fault+0x4a8/0x5ec
[ 1117.204509] Call Trace:
[ 1117.204609] [cacdbc40] [c0012048] do_page_fault+0x4a8/0x5ec (unreliable)
[ 1117.204771] [cacdbc70] [c00112f0] handle_page_fault+0x8/0x34
[ 1117.204911] --- interrupt: 301 at copy_from_kernel_nofault+0x70/0x1c0
[ 1117.204979] NIP: c010dbec LR: c010dbac CTR: 00000001
[ 1117.205053] REGS: cacdbc80 TRAP: 0301 Tainted: G W (5.10.0-rc5-01340-g83f53be2de31-dirty)
[ 1117.205104] MSR: 00009032 <EE,ME,IR,DR,RI> CR: 28082224 XER: 00000000
[ 1117.205416] DAR: 0000005c DSISR: c0000000
[ 1117.205416] GPR00: c0045948 cacdbd38 c2929290 00000001 00000017 00000017 00000027 0000000f
[ 1117.205416] GPR08: c09926ec 00000000 00000000 3ffff000 24082224
[ 1117.206106] NIP [c010dbec] copy_from_kernel_nofault+0x70/0x1c0
[ 1117.206202] LR [c010dbac] copy_from_kernel_nofault+0x30/0x1c0
[ 1117.206258] --- interrupt: 301
[ 1117.206372] [cacdbd38] [c004bbb0] kthread_probe_data+0x44/0x70 (unreliable)
[ 1117.206561] [cacdbd58] [c0045948] print_worker_info+0xe0/0x194
[ 1117.206717] [cacdbdb8] [c00548ac] sched_show_task+0x134/0x168
[ 1117.206851] [cacdbdd8] [c005a268] show_state_filter+0x70/0x100
[ 1117.206989] [cacdbe08] [c039baa0] sysrq_handle_showstate+0x14/0x24
[ 1117.207122] [cacdbe18] [c039bf18] __handle_sysrq+0xac/0x1d0
[ 1117.207257] [cacdbe48] [c039c0c0] write_sysrq_trigger+0x4c/0x74
[ 1117.207407] [cacdbe68] [c01fba48] proc_reg_write+0xb4/0x114
[ 1117.207550] [cacdbe88] [c0179968] vfs_write+0x12c/0x478
[ 1117.207686] [cacdbf08] [c0179e60] ksys_write+0x78/0x128
[ 1117.207826] [cacdbf38] [c00110d0] ret_from_syscall+0x0/0x34
[ 1117.207938] --- interrupt: c01 at 0xfd4e784
[ 1117.208008] NIP: 0fd4e784 LR: 0fe0f244 CTR: 10048d38
[ 1117.208083] REGS: cacdbf48 TRAP: 0c01 Tainted: G W (5.10.0-rc5-01340-g83f53be2de31-dirty)
[ 1117.208134] MSR: 0000d032 <EE,PR,ME,IR,DR,RI> CR: 44002222 XER: 00000000
[ 1117.208470]
[ 1117.208470] GPR00: 00000004 7fc34090 77bfb4e0 00000001 1080fa40 00000002 7400000f fefefeff
[ 1117.208470] GPR08: 7f7f7f7f 10048d38 1080c414 7fc343c0 00000000
[ 1117.209104] NIP [0fd4e784] 0xfd4e784
[ 1117.209180] LR [0fe0f244] 0xfe0f244
[ 1117.209236] --- interrupt: c01
[ 1117.209274] Instruction dump:
[ 1117.209353] 714a4000 418200f0 73ca0001 40820084 73ca0032 408200f8 73c90040 4082ff60
[ 1117.209727] 0fe00000 3c60c082 386399f4 48013b65 <0fe00000> 80010034 3860000b 7c0803a6
[ 1117.210102] ---[ end trace 1927c0323393af3e ]---
To avoid that, copy_from_kernel_nofault_allowed() is used to check
whether the address is a valid kernel address. But the default
version of it returns true for any address.
Provide a powerpc version of copy_from_kernel_nofault_allowed()
that returns false when the address is below TASK_USER_MAX,
so that copy_from_kernel_nofault() will return -ERANGE.
Fixes: c33165253492 ("powerpc: use non-set_fs based maccess routines")
Reported-by: Qian Cai <qcai@redhat.com>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/18bcb456d32a3e74f5ae241fd6f1580c092d07f5.1607360230.git.christophe.leroy@csgroup.eu
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The R9A06G032 clock driver uses an array of packed structures to reduce
kernel size. However, this array contains pointers, which are no longer
aligned naturally, and cannot be relocated on PPC64. Hence when
compile-testing this driver on PPC64 with CONFIG_RELOCATABLE=y (e.g.
PowerPC allyesconfig), the following warnings are produced:
WARNING: 136 bad relocations
c000000000616be3 R_PPC64_UADDR64 .rodata+0x00000000000cf338
c000000000616bfe R_PPC64_UADDR64 .rodata+0x00000000000cf370
...
Fix this by dropping the __packed attribute from the r9a06g032_clkdesc
definition, trading a small size increase for portability.
This increases the 156-entry clock table by 1 byte per entry, but due to
the compiler generating more efficient code for unpacked accesses, the
net size increase is only 76 bytes (gcc 9.3.0 on arm32).
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: 4c3d88526eba2143 ("clk: renesas: Renesas R9A06G032 clock driver")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20201130085743.1656317-1-geert+renesas@glider.be
Tested-by: Stephen Rothwell <sfr@canb.auug.org.au> # PowerPC allyesconfig build
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
|
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This issue can be reproduced by having a kernel config with
CONFIG_IMX_MBOX=m and CONFIG_MXC_CLK_SCU=m. It's caused by the Makefile
wanting to build clk-scu.o and clk-imx8qxp.o as different targets but
that doesn't work (e.g. MXC_CLK_SCU = y while CLK_IMX8QXP = n)
"obj-$(CONFIG_MXC_CLK_SCU) += clk-imx-scu.o clk-imx-lpcg-scu.o
clk-imx-scu-$(CONFIG_CLK_IMX8QXP) += clk-scu.o clk-imx8qxp.o"
Having MXC_CLK_SCU=y/m while CLK_IMX8QXP=n will cause a linker problem
like below:
LD [M] drivers/clk/imx/clk-imx-scu.o
arm-poky-linux-gnueabi-ld: no input files
Make MXC_CLK_SCU be un-selectable by users so it can only be selected by
the CLK_IMX8QXP option, ensuring the two symbols are built together.
Drop COMPILE_TEST too because this option isn't selectable anymore. We
can remove it from MXC_CLK_SCU because CLK_IMX8QXP selects MXC_CLK_SCU
which already has COMPILE_TEST.
Fixes: e0d0d4d86c766 ("clk: imx8qxp: Support building i.MX8QXP clock driver as module")
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Link: https://lore.kernel.org/r/20201130084624.21113-1-aisheng.dong@nxp.com
[sboyd@kernel.org: Rework commit text]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
|
|
The query_gid_table ioctl skips non IB/RoCE ports, which as a result
returns an empty gid table for devices such as EFA which have a GID table,
but are not IB/RoCE.
Fixes: c4b4d548fabc ("RDMA/core: Introduce new GID table query API")
Link: https://lore.kernel.org/r/20201206153238.34878-1-galpress@amazon.com
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
|
|
migrate_disable() is just a wrapper for preempt_disable() in
non-RT kernel. It is safe to replace it, and RT kernel will
benefit.
Note that it is introduced since Feb 2020.
Suggested-by: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20201205075946.497763-2-xiyou.wangcong@gmail.com
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The per-cpu bpf_redirect_info is shared among all skb_do_redirect()
and BPF redirect helpers. Callers on RX path are all in BH context,
disabling preemption is not sufficient to prevent BH interruption.
In production, we observed strange packet drops because of the race
condition between LWT xmit and TC ingress, and we verified this issue
is fixed after we disable BH.
Although this bug was technically introduced from the beginning, that
is commit 3a0af8fd61f9 ("bpf: BPF for lightweight tunnel infrastructure"),
at that time call_rcu() had to be call_rcu_bh() to match the RCU context.
So this patch may not work well before RCU flavor consolidation has been
completed around v5.0.
Update the comments above the code too, as call_rcu() is now BH friendly.
Signed-off-by: Dongdong Wang <wangdongdong.6@bytedance.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Cong Wang <cong.wang@bytedance.com>
Link: https://lore.kernel.org/bpf/20201205075946.497763-1-xiyou.wangcong@gmail.com
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
"Fix userstacktrace option for instances
While writing an application that requires user stack trace option to
work in instances, I found that the instance option has a bug that
makes it a nop. The check for performing the user stack trace in an
instance, checks the top level options (not the instance options) to
determine if a user stack trace should be performed or not.
This is not only incorrect, but also confusing for users. It confused
me for a bit!"
* tag 'trace-v5.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Fix userstacktrace option for instances
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After io_identity_cow() copies an work.identity it wants to copy creds
to the new just allocated id, not the old one. Otherwise it's
akin to req->work.identity->creds = req->work.identity->creds.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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It is expected for ARM and ARM64 SoC related code to go through
sub-architecture maintainers. Their addresses were therefore not
documented to push patch traffic through sub-architecture maintainers.
However when patches touch generic code, e.g. multi_v7_defconfig, the
patch might not be picked up by them and instead should go to the SoC
maintainers - Arnd and Olof.
Add a minimal maintainer's entry for SoC covering only Makefile, so it
will not appear on most of submissions (except new devicetree boards).
It will though serve as a documentation and reference for cases when
submitter does not know where to send his SoC-related patches.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201201211516.24921-2-krzk@kernel.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The SoC Git was moved from arm/arm-soc.git to soc/soc.git. Correct the
ARM Sub-architectures entry.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201201211516.24921-1-krzk@kernel.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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These definitions are evidently left over from the days when
sparsemem settings were platform specific. This was no longer
the case when the platform got merged.
There was no warning in the past, but now the asm/sparsemem.h
header ends up being included indirectly, causing this warning:
In file included from /git/arm-soc/arch/arm/mach-keystone/keystone.c:24:
arch/arm/mach-keystone/memory.h:10:9: warning: 'SECTION_SIZE_BITS' macro redefined [-Wmacro-redefined]
#define SECTION_SIZE_BITS 34
^
arch/arm/include/asm/sparsemem.h:23:9: note: previous definition is here
#define SECTION_SIZE_BITS 28
^
Clearly the definitions never had any effect here, so remove them.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20201203231847.1484900-1-arnd@kernel.org'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes
i.MX fixes for 5.10, round 5:
- Fix a regression on SoC revision detection with ANATOP, that is
introduced by commit 4a4fb66119eb ("ARM: imx: Add missing
of_node_put()").
- Drop PAD_GPIO_6 from imx6qdl-wandboard ENET pin group, as the pin is
used by camera sensor now.
- Fix I2C3_SCL pinmux on imx6qdl-kontron-samx6i board, so that SoM EEPROM
can be accessed.
* tag 'imx-fixes-5.10-5' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: dts: imx6qdl-kontron-samx6i: fix I2C_PM scl pin
ARM: dts: imx6qdl-wandboard-revd1: Remove PAD_GPIO_6 from enetgrp
ARM: imx: Use correct SRC base address
Link: https://lore.kernel.org/r/20201201091820.GW4072@dragon
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/fixes
A few more RGMII-ID fixes, and a bunch of other more random fixes
* tag 'sunxi-fixes-for-5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
ARM: dts: sun7i: pcduino3-nano: enable RGMII RX/TX delay on PHY
ARM: dts: sun8i: v3s: fix GIC node memory range
ARM: dts: sun8i: v40: bananapi-m2-berry: Fix ethernet node
ARM: dts: sun8i: r40: bananapi-m2-berry: Fix dcdc1 regulator
ARM: dts: sun7i: bananapi: Enable RGMII RX/TX delay on Ethernet PHY
ARM: dts: s3: pinecube: align compatible property to other S3 boards
ARM: sunxi: Add machine match for the Allwinner V3 SoC
arm64: dts: allwinner: h6: orangepi-one-plus: Fix ethernet
Link: https://lore.kernel.org/r/1280f1de-1b6d-4cc2-8448-e5a9096a41e8.lettre@localhost
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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According to the AMD IOMMU spec, the commit 73db2fc595f3
("iommu/amd: Increase interrupt remapping table limit to 512 entries")
also requires the interrupt table length (IntTabLen) to be set to 9
(power of 2) in the device table mapping entry (DTE).
Fixes: 73db2fc595f3 ("iommu/amd: Increase interrupt remapping table limit to 512 entries")
Reported-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Link: https://lore.kernel.org/r/20201207091920.3052-1-suravee.suthikulpanit@amd.com
Signed-off-by: Will Deacon <will@kernel.org>
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Guillaume noticed that: for segments udp_queue_rcv_one_skb() returns the
proto, and it should pass "ret" unmodified to ip_protocol_deliver_rcu().
Otherwize, with a negtive value passed, it will underflow inet_protos.
This can be reproduced with IPIP FOU:
# ip fou add port 5555 ipproto 4
# ethtool -K eth1 rx-gro-list on
Fixes: cf329aa42b66 ("udp: cope with UDP GRO packet misdirection")
Reported-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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hclge_dbg_reg_info[] is defined as an array of packed structure
accidentally. However, this array contains pointers, which are
no longer aligned naturally, and cannot be relocated on PPC64.
Hence, when compile-testing this driver on PPC64 with
CONFIG_RELOCATABLE=y (e.g. PowerPC allyesconfig), there will be
some warnings.
Since each field in structure hclge_qos_pri_map_cmd and
hclge_dbg_bitmap_cmd is type u8, the pragma packed is unnecessary
for these two structures as well, so remove the pragma packed in
hclge_debugfs.h to fix this issue, and this increases
hclge_dbg_reg_info[] by 4 bytes per entry.
Fixes: a582b78dfc33 ("net: hns3: code optimization for debugfs related to "dump reg"")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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dmi_use_low_level_irq list
Add the Lenovo Yoga Tablet2 1051L to the list of devices where the
ACPI AML code is poking the GPIO config register directly changing
the IRQ type to a low_level_irq, which we need to work around.
This fixes the home button on the Lenovo Yoga Tablet2 1051L not
working.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20201206161245.24798-1-hdegoede@redhat.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Raydium device does not like splitting of tx transactions into multiple
messages - one for the register address and one for the actual data. This
results in incorrect behavior on the device side.
This change updates raydium_i2c_read and raydium_i2c_write to create
i2c_msg arrays separately and passes those arrays into raydium_i2c_xfer
which decides based on the address whether the bank switch command should
be sent. The bank switch header is still added by raydium_i2c_read and
raydium_i2c_write to ensure that all these operations are performed as part
of a single I2C transfer. It guarantees that no other transactions are
initiated to any other device on the same bus after the bank switch command
is sent.
Signed-off-by: Furquan Shaikh <furquan@google.com>
Link: https://lore.kernel.org/r/20201205005941.1427643-1-furquan@google.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small driver fixes, and one "large" revert, for
5.10-rc7.
They include:
- revert mei patch from 5.10-rc1 that was using a reserved userspace
value. It will be resubmitted once the proper id has been assigned
by the virtio people.
- habanalabs fixes found by the fall-through audit from Gustavo
- speakup driver fixes for reported issues
- fpga config build fix for reported issue.
All of these except the revert have been in linux-next with no
reported issues. The revert is "clean" and just removes a
previously-added driver, so no real issue there"
* tag 'char-misc-5.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
Revert "mei: virtio: virtualization frontend driver"
fpga: Specify HAS_IOMEM dependency for FPGA_DFL
habanalabs: put devices before driver removal
habanalabs: free host huge va_range if not used
speakup: Reject setting the speakup line discipline outside of speakup
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty fixes from Greg KH:
"Here are two tty core fixes for 5.10-rc7.
They resolve some reported locking issues in the tty core. While they
have not been in a released linux-next yet, they have passed all of
the 0-day bot testing as well as the submitter's testing"
* tag 'tty-5.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: Fix ->session locking
tty: Fix ->pgrp locking in tiocspgrp()
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes for 5.10-rc7 that resolve a number of
reported issues, and add some new device ids.
Nothing major here, but these solve some problems that people were
having with the 5.10-rc tree:
- reverts for USB storage dma settings that broke working devices
- thunderbolt use-after-free fix
- cdns3 driver fixes
- gadget driver userspace copy fix
- new device ids
All of these except for the reverts have been in linux-next with no
reported issues. The reverts are "clean" and were tested by Hans, as
well as passing the 0-day tests"
* tag 'usb-5.10-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: gadget: f_fs: Use local copy of descriptors for userspace copy
usb: ohci-omap: Fix descriptor conversion
Revert "usb-storage: fix sdev->host->dma_dev"
Revert "uas: fix sdev->host->dma_dev"
Revert "uas: bump hw_max_sectors to 2048 blocks for SS or faster drives"
USB: serial: kl5kusb105: fix memleak on open
USB: serial: ch341: sort device-id entries
USB: serial: ch341: add new Product ID for CH341A
USB: serial: option: fix Quectel BG96 matching
usb: cdns3: core: fix goto label for error path
usb: cdns3: gadget: clear trb->length as zero after preparing every trb
usb: cdns3: Fix hardware based role switch
USB: serial: option: add support for Thales Cinterion EXS82
USB: serial: option: add Fibocom NL668 variants
thunderbolt: Fix use-after-free in remove_unplugged_switch()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A set of fixes for x86:
- Make the AMD L3 QoS code and data priorization enable/disable
mechanism work correctly.
The control bit was only set/cleared on one of the CPUs in a L3
domain, but it has to be modified on all CPUs in the domain. The
initial documentation was not clear about this, but the updated one
from Oct 2020 spells it out.
- Fix an off by one in the UV platform detection code which causes
the UV hubs to be identified wrongly.
The chip revisions start at 1 not at 0.
- Fix a long standing bug in the evaluation of prefixes in the
uprobes code which fails to handle repeated prefixes properly.
The aggregate size of the prefixes can be larger than the bytes
array but the code blindly iterated over the aggregate size beyond
the array boundary. Add a macro to handle this case properly and
use it at the affected places"
* tag 'x86-urgent-2020-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sev-es: Use new for_each_insn_prefix() macro to loop over prefixes bytes
x86/insn-eval: Use new for_each_insn_prefix() macro to loop over prefixes bytes
x86/uprobes: Do not use prefixes.nbytes when looping over prefixes.bytes
x86/platform/uv: Fix UV4 hub revision adjustment
x86/resctrl: Fix AMD L3 QOS CDP enable/disable
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
"Two fixes for performance monitoring on X86:
- Add recursion protection to another callchain invoked from
x86_pmu_stop() which can recurse back into x86_pmu_stop(). The
first attempt to fix this missed this extra code path.
- Use the already filtered status variable to check for PEBS counter
overflow bits and not the unfiltered full status read from
IA32_PERF_GLOBAL_STATUS which can have unrelated bits check which
would be evaluated incorrectly"
* tag 'perf-urgent-2020-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel: Check PEBS status correctly
perf/x86/intel: Fix a warning on x86_pmu_stop() with large PEBS
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A set of updates for the interrupt subsystem:
- Make multiqueue devices which use the managed interrupt affinity
infrastructure work on PowerPC/Pseries. PowerPC does not use the
generic infrastructure for setting up PCI/MSI interrupts and the
multiqueue changes failed to update the legacy PCI/MSI
infrastructure. Make this work by passing the affinity setup
information down to the mapping and allocation functions.
- Move Jason Cooper from MAINTAINERS to CREDITS as his mail is
bouncing and he's not reachable. We hope all is well with him and
say thanks for his work over the years"
* tag 'irq-urgent-2020-12-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
powerpc/pseries: Pass MSI affinity to irq_create_mapping()
genirq/irqdomain: Add an irq_create_mapping_affinity() function
MAINTAINERS: Move Jason Cooper to CREDITS
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