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| author |  Roberto Sassu <roberto.sassu@huawei.com>
| 2022-10-06 13:07:35 +0200 |
|---|---|---|
| committer |  Andrii Nakryiko <andrii@kernel.org>
| 2022-10-10 16:49:20 -0700 |
| commit | 97c8f9dd5db839f2387785ee936d0a5b257b31d3 (patch) | |
| tree | 7187d54b1216e04a58ee53bbbab571f6be527a5c /tools/lib/bpf/libbpf.map | |
| parent | libbpf: Introduce bpf_btf_get_fd_by_id_opts() (diff) | |
| download | linux-97c8f9dd5db839f2387785ee936d0a5b257b31d3.tar.gz linux-97c8f9dd5db839f2387785ee936d0a5b257b31d3.tar.bz2 linux-97c8f9dd5db839f2387785ee936d0a5b257b31d3.zip | |
libbpf: Introduce bpf_link_get_fd_by_id_opts()
Introduce bpf_link_get_fd_by_id_opts(), for symmetry with
bpf_map_get_fd_by_id_opts(), to let the caller pass the newly introduced
data structure bpf_get_fd_by_id_opts. Keep the existing
bpf_link_get_fd_by_id(), and call bpf_link_get_fd_by_id_opts() with NULL as
opts argument, to prevent setting open_flags.
Currently, the kernel does not support non-zero open_flags for
bpf_link_get_fd_by_id_opts(), and a call with them will result in an error
returned by the bpf() system call. The caller should always pass zero
open_flags.
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20221006110736.84253-6-roberto.sassu@huaweicloud.com
Diffstat (limited to 'tools/lib/bpf/libbpf.map')
| -rw-r--r-- | tools/lib/bpf/libbpf.map | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map index 7011d5eec67b..71bf5691a689 100644 --- a/tools/lib/bpf/libbpf.map +++ b/tools/lib/bpf/libbpf.map @@ -372,6 +372,7 @@ LIBBPF_1.0.0 { LIBBPF_1.1.0 { global: bpf_btf_get_fd_by_id_opts; + bpf_link_get_fd_by_id_opts; bpf_map_get_fd_by_id_opts; bpf_prog_get_fd_by_id_opts; user_ring_buffer__discard; |