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authorAlexei Starovoitov <ast@kernel.org>2021-05-13 17:36:11 -0700
committerDaniel Borkmann <daniel@iogearbox.net>2021-05-19 00:33:40 +0200
commit3d78417b60fba249cc555468cb72d96f5cde2964 (patch)
treec61b6a262c43b125b25c3601be7285f51df5a91f /kernel/bpf/syscall.c
parent387544bfa291a22383d60b40f887360e2b931ec6 (diff)
bpf: Add bpf_btf_find_by_name_kind() helper.
Add new helper: long bpf_btf_find_by_name_kind(char *name, int name_sz, u32 kind, int flags) Description Find BTF type with given name and kind in vmlinux BTF or in module's BTFs. Return Returns btf_id and btf_obj_fd in lower and upper 32 bits. It will be used by loader program to find btf_id to attach the program to and to find btf_ids of ksyms. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210514003623.28033-10-alexei.starovoitov@gmail.com
Diffstat (limited to 'kernel/bpf/syscall.c')
-rw-r--r--kernel/bpf/syscall.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index da7dc2406470..f93ff2ebf96d 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -4584,6 +4584,8 @@ syscall_prog_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
switch (func_id) {
case BPF_FUNC_sys_bpf:
return &bpf_sys_bpf_proto;
+ case BPF_FUNC_btf_find_by_name_kind:
+ return &bpf_btf_find_by_name_kind_proto;
default:
return tracing_prog_func_proto(func_id, prog);
}