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bpf: Fix build without BPF_LSM.
authorAlexei Starovoitov <ast@kernel.org>
Mon, 31 Aug 2020 16:31:32 +0000 (09:31 -0700)
committerDaniel Borkmann <daniel@iogearbox.net>
Mon, 31 Aug 2020 18:56:10 +0000 (20:56 +0200)
commit29523c5e6716521f6e2fb59d7785e2bc0b1a993a
tree3824404a0537ca3dbbe6b05bd8548db31c174016
parent9667305c6374df8672be46bc496f52f040999531
bpf: Fix build without BPF_LSM.

resolve_btfids doesn't like empty set. Add unused ID when BPF_LSM is off.

Fixes: 1e6c62a88215 ("bpf: Introduce sleepable BPF programs")
Reported-by: Björn Töpel <bjorn.topel@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Song Liu <songliubraving@fb.com>
Acked-by: KP Singh <kpsingh@google.com>
Link: https://lore.kernel.org/bpf/20200831163132.66521-1-alexei.starovoitov@gmail.com
kernel/bpf/verifier.c