diff options
| author | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2022-01-14 22:09:46 +0530 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2022-01-18 14:26:41 -0800 |
| commit | b202d84422223b7222cba5031d182f20b37e146e (patch) | |
| tree | 35a347bd4151f51c011c04b05315fbcf9c8e80cb /net/bpf | |
| parent | dee872e124e8d5de22b68c58f6f6c3f5e8889160 (diff) | |
| download | linux-b202d84422223b7222cba5031d182f20b37e146e.tar.gz | |
bpf: Remove check_kfunc_call callback and old kfunc BTF ID API
Completely remove the old code for check_kfunc_call to help it work
with modules, and also the callback itself.
The previous commit adds infrastructure to register all sets and put
them in vmlinux or module BTF, and concatenates all related sets
organized by the hook and the type. Once populated, these sets remain
immutable for the lifetime of the struct btf.
Also, since we don't need the 'owner' module anywhere when doing
check_kfunc_call, drop the 'btf_modp' module parameter from
find_kfunc_desc_btf.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20220114163953.1455836-4-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'net/bpf')
| -rw-r--r-- | net/bpf/test_run.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/net/bpf/test_run.c b/net/bpf/test_run.c index 46dd957559672..7796a8c747a01 100644 --- a/net/bpf/test_run.c +++ b/net/bpf/test_run.c @@ -5,6 +5,7 @@ #include <linux/btf.h> #include <linux/btf_ids.h> #include <linux/slab.h> +#include <linux/init.h> #include <linux/vmalloc.h> #include <linux/etherdevice.h> #include <linux/filter.h> @@ -236,18 +237,11 @@ __diag_pop(); ALLOW_ERROR_INJECTION(bpf_modify_return_test, ERRNO); -BTF_SET_START(test_sk_kfunc_ids) +BTF_SET_START(test_sk_check_kfunc_ids) BTF_ID(func, bpf_kfunc_call_test1) BTF_ID(func, bpf_kfunc_call_test2) BTF_ID(func, bpf_kfunc_call_test3) -BTF_SET_END(test_sk_kfunc_ids) - -bool bpf_prog_test_check_kfunc_call(u32 kfunc_id, struct module *owner) -{ - if (btf_id_set_contains(&test_sk_kfunc_ids, kfunc_id)) - return true; - return bpf_check_mod_kfunc_call(&prog_test_kfunc_list, kfunc_id, owner); -} +BTF_SET_END(test_sk_check_kfunc_ids) static void *bpf_test_init(const union bpf_attr *kattr, u32 size, u32 headroom, u32 tailroom) @@ -1067,3 +1061,14 @@ out: kfree(ctx); return err; } + +static const struct btf_kfunc_id_set bpf_prog_test_kfunc_set = { + .owner = THIS_MODULE, + .check_set = &test_sk_check_kfunc_ids, +}; + +static int __init bpf_prog_test_run_init(void) +{ + return register_btf_kfunc_id_set(BPF_PROG_TYPE_SCHED_CLS, &bpf_prog_test_kfunc_set); +} +late_initcall(bpf_prog_test_run_init); |