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| author | Geliang Tang <tanggeliang@kylinos.cn> | 2024-02-08 14:24:23 +0800 |
|---|---|---|
| committer | Martin KaFai Lau <martin.lau@kernel.org> | 2024-02-08 11:37:49 -0800 |
| commit | 947e56f82fd783a1ec1c9359b20b5699d09cae14 (patch) | |
| tree | d86d4ccbb81089e586156921f3bc70d759d02936 /kernel/bpf | |
| parent | 9e60b0e02550aaf5f2301e49353641a5e3701674 (diff) | |
| download | linux-947e56f82fd783a1ec1c9359b20b5699d09cae14.tar.gz | |
bpf, btf: Check btf for register_bpf_struct_ops
Similar to the handling in the functions __register_btf_kfunc_id_set()
and register_btf_id_dtor_kfuncs(), this patch uses the newly added
helper check_btf_kconfigs() to handle module with its btf section
stripped.
While at it, the patch also adds the missed IS_ERR() check to fix the
commit f6be98d19985 ("bpf, net: switch to dynamic registration")
Fixes: f6be98d19985 ("bpf, net: switch to dynamic registration")
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Link: https://lore.kernel.org/r/69082b9835463fe36f9e354bddf2d0a97df39c2b.1707373307.git.tanggeliang@kylinos.cn
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Diffstat (limited to 'kernel/bpf')
| -rw-r--r-- | kernel/bpf/btf.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c index 61e51cf0a9956..8e06d29961f1a 100644 --- a/kernel/bpf/btf.c +++ b/kernel/bpf/btf.c @@ -8882,7 +8882,9 @@ int __register_bpf_struct_ops(struct bpf_struct_ops *st_ops) btf = btf_get_module_btf(st_ops->owner); if (!btf) - return -EINVAL; + return check_btf_kconfigs(st_ops->owner, "struct_ops"); + if (IS_ERR(btf)) + return PTR_ERR(btf); log = kzalloc(sizeof(*log), GFP_KERNEL | __GFP_NOWARN); if (!log) { |