diff options
| author | D. Wythe <alibuda@linux.alibaba.com> | 2025-11-07 11:56:30 +0800 |
|---|---|---|
| committer | Martin KaFai Lau <martin.lau@kernel.org> | 2025-11-10 11:07:34 -0800 |
| commit | 07c428ece3222832bdbfcc4ffa8b8d3991c5eb39 (patch) | |
| tree | 2333601a0f0469d49f3395ebd6366dcd1a1cd3f2 /kernel | |
| parent | abd0c0f6aabc4f60e711ea8e7de40bdda17654c5 (diff) | |
bpf: Export necessary symbols for modules with struct_ops
Exports three necessary symbols for implementing struct_ops with
tristate subsystem.
To hold or release refcnt of struct_ops refcnt by inline funcs
bpf_try_module_get and bpf_module_put which use bpf_struct_ops_get(put)
conditionally.
And to copy obj name from one to the other with effective checks by
bpf_obj_name_cpy.
Signed-off-by: D. Wythe <alibuda@linux.alibaba.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://patch.msgid.link/20251107035632.115950-2-alibuda@linux.alibaba.com
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/bpf/bpf_struct_ops.c | 2 | ||||
| -rw-r--r-- | kernel/bpf/syscall.c | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/kernel/bpf/bpf_struct_ops.c b/kernel/bpf/bpf_struct_ops.c index a41e6730edcf..278490683d28 100644 --- a/kernel/bpf/bpf_struct_ops.c +++ b/kernel/bpf/bpf_struct_ops.c @@ -1162,6 +1162,7 @@ bool bpf_struct_ops_get(const void *kdata) map = __bpf_map_inc_not_zero(&st_map->map, false); return !IS_ERR(map); } +EXPORT_SYMBOL_GPL(bpf_struct_ops_get); void bpf_struct_ops_put(const void *kdata) { @@ -1173,6 +1174,7 @@ void bpf_struct_ops_put(const void *kdata) bpf_map_put(&st_map->map); } +EXPORT_SYMBOL_GPL(bpf_struct_ops_put); u32 bpf_struct_ops_id(const void *kdata) { diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index 8a129746bd6c..80b86e9d3c39 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -1234,6 +1234,7 @@ int bpf_obj_name_cpy(char *dst, const char *src, unsigned int size) return src - orig_src; } +EXPORT_SYMBOL_GPL(bpf_obj_name_cpy); int map_check_no_btf(const struct bpf_map *map, const struct btf *btf, |