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authorAlexei Starovoitov <ast@kernel.org>2020-08-31 09:31:32 -0700
committerDaniel Borkmann <daniel@iogearbox.net>2020-08-31 20:56:10 +0200
commit29523c5e6716521f6e2fb59d7785e2bc0b1a993a (patch)
tree3824404a0537ca3dbbe6b05bd8548db31c174016 /kernel
parent9667305c6374df8672be46bc496f52f040999531 (diff)
downloadlinux-29523c5e6716521f6e2fb59d7785e2bc0b1a993a.tar.bz2
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
Diffstat (limited to 'kernel')
-rw-r--r--kernel/bpf/verifier.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 3ebfdb7bd427..b4c22b5ce5a2 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -11008,6 +11008,8 @@ BTF_SET_START(btf_sleepable_lsm_hooks)
#ifdef CONFIG_BPF_LSM
BTF_ID(func, bpf_lsm_file_mprotect)
BTF_ID(func, bpf_lsm_bprm_committed_creds)
+#else
+BTF_ID_UNUSED
#endif
BTF_SET_END(btf_sleepable_lsm_hooks)