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| author | Sven Schnelle <svens@linux.ibm.com> | 2022-05-04 08:23:50 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2022-05-09 11:33:38 +0200 |
| commit | 6d97af487dee3176cb1342d4ab16637e495440ad (patch) | |
| tree | 12caf1c8054ac1d75ffe9f8bbb61f2057768ec92 /kernel/entry | |
| parent | fcdc03f78d5c8db53ba090e38474b05113d34ade (diff) | |
| download | linux-6d97af487dee3176cb1342d4ab16637e495440ad.tar.gz | |
entry: Rename arch_check_user_regs() to arch_enter_from_user_mode()
arch_check_user_regs() is used at the moment to verify that struct pt_regs
contains valid values when entering the kernel from userspace. s390 needs
a place in the generic entry code to modify a cpu data structure when
switching from userspace to kernel mode. As arch_check_user_regs() is
exactly this, rename it to arch_enter_from_user_mode().
When entering the kernel from userspace, arch_check_user_regs() is
used to verify that struct pt_regs contains valid values. Note that
the NMI codepath doesn't call this function. s390 needs a place in the
generic entry code to modify a cpu data structure when switching from
userspace to kernel mode. As arch_check_user_regs() is exactly this,
rename it to arch_enter_from_user_mode().
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/20220504062351.2954280-2-tmricht@linux.ibm.com
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'kernel/entry')
| -rw-r--r-- | kernel/entry/common.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/entry/common.c b/kernel/entry/common.c index 93c3b86e781c1..9e63923c5a0f6 100644 --- a/kernel/entry/common.c +++ b/kernel/entry/common.c @@ -17,7 +17,7 @@ /* See comment for enter_from_user_mode() in entry-common.h */ static __always_inline void __enter_from_user_mode(struct pt_regs *regs) { - arch_check_user_regs(regs); + arch_enter_from_user_mode(regs); lockdep_hardirqs_off(CALLER_ADDR0); CT_WARN_ON(ct_state() != CONTEXT_USER); |