Commit 4edf16b7 authored by KP Singh's avatar KP Singh Committed by Daniel Borkmann

bpf, lsm: Make BPF_LSM depend on BPF_EVENTS

LSM and tracing programs share their helpers with bpf_tracing_func_proto
which is only defined (in bpf_trace.c) when BPF_EVENTS is enabled.

Instead of adding __weak symbol, make BPF_LSM depend on BPF_EVENTS so
that both tracing and LSM programs can actually share helpers.

Fixes: fc611f47 ("bpf: Introduce BPF_PROG_TYPE_LSM")
Reported-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Signed-off-by: default avatarKP Singh <kpsingh@google.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200330204059.13024-1-kpsingh@chromium.org
parent c58b1558
...@@ -1619,6 +1619,7 @@ config KALLSYMS_BASE_RELATIVE ...@@ -1619,6 +1619,7 @@ config KALLSYMS_BASE_RELATIVE
config BPF_LSM config BPF_LSM
bool "LSM Instrumentation with BPF" bool "LSM Instrumentation with BPF"
depends on BPF_EVENTS
depends on BPF_SYSCALL depends on BPF_SYSCALL
depends on SECURITY depends on SECURITY
depends on BPF_JIT depends on BPF_JIT
......
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