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authorYonghong Song <yhs@fb.com>2020-07-23 11:41:17 -0700
committerAlexei Starovoitov <ast@kernel.org>2020-07-25 20:16:33 -0700
commitcd31039a7347610863aa8b77a9162048999723d0 (patch)
tree1484dab071877cccf5a8fe973c7392f123aa7ac8 /tools/lib/bpf/bpf.c
parent5ce6e77c7edf7310a0ff9532fd6b9693c082ab32 (diff)
tools/libbpf: Add support for bpf map element iterator
Add map_fd to bpf_iter_attach_opts and flags to bpf_link_create_opts. Later on, bpftool or selftest will be able to create a bpf map element iterator by passing map_fd to the kernel during link creation time. Signed-off-by: Yonghong Song <yhs@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200723184117.590673-1-yhs@fb.com
Diffstat (limited to 'tools/lib/bpf/bpf.c')
-rw-r--r--tools/lib/bpf/bpf.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index a7329b671c41..e1bdf214f75f 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c
@@ -598,6 +598,7 @@ int bpf_link_create(int prog_fd, int target_fd,
attr.link_create.prog_fd = prog_fd;
attr.link_create.target_fd = target_fd;
attr.link_create.attach_type = attach_type;
+ attr.link_create.flags = OPTS_GET(opts, flags, 0);
return sys_bpf(BPF_LINK_CREATE, &attr, sizeof(attr));
}