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| author |   Rafael David Tinoco <rafaeldtinoco@ubuntu.com> | 2021-03-23 01:09:52 -0300 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2021-03-25 19:23:27 -0700 |
| commit | 155f556d64b1a48710f01305e14bb860734ed1e3 (patch) | |
| tree | 6a719b790128b4142547560041bfc912cc7fe8c4 /tools/lib/bpf/libbpf.h | |
| parent | Merge branch 'add support for batched ops in LPM trie' (diff) | |
| download | linux-dev-155f556d64b1a48710f01305e14bb860734ed1e3.tar.xz linux-dev-155f556d64b1a48710f01305e14bb860734ed1e3.zip | |
libbpf: Add bpf object kern_version attribute setter
Unfortunately some distros don't have their kernel version defined
accurately in <linux/version.h> due to different long term support
reasons.
It is important to have a way to override the bpf kern_version
attribute during runtime: some old kernels might still check for
kern_version attribute during bpf_prog_load().
Signed-off-by: Rafael David Tinoco <rafaeldtinoco@ubuntu.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20210323040952.2118241-1-rafaeldtinoco@ubuntu.com
Diffstat (limited to 'tools/lib/bpf/libbpf.h')
| -rw-r--r-- | tools/lib/bpf/libbpf.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h index 89ade7d7b31c..f500621d28e5 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -143,6 +143,7 @@ LIBBPF_API int bpf_object__unload(struct bpf_object *obj); LIBBPF_API const char *bpf_object__name(const struct bpf_object *obj); LIBBPF_API unsigned int bpf_object__kversion(const struct bpf_object *obj); +LIBBPF_API int bpf_object__set_kversion(struct bpf_object *obj, __u32 kern_version); struct btf; LIBBPF_API struct btf *bpf_object__btf(const struct bpf_object *obj); |