On 2020/4/15 6:05, Song Liu wrote: > > >> On Apr 13, 2020, at 4:37 AM, Mao Wenan <maowenan@xxxxxxxxxx> wrote: >> >> Fixes gcc '-Wunused-but-set-variable' warning: >> >> kernel/bpf/verifier.c:5603:18: warning: variable ‘dst_known’ >> set but not used [-Wunused-but-set-variable] >> >> It is not used since commit f1174f77b50c ("bpf/verifier: >> rework value tracking") > > The fix makes sense. But I think f1174f77b50c introduced dst_known, > so this statement is not accurate. > thanks for review, yes, f1174f77b50c introduced dst_known, and below commit doesn't deference variable dst_known. So I send v2 later? 3f50f132d840 ("bpf: Verifier, do explicit ALU32 bounds tracking") >> >> Signed-off-by: Mao Wenan <maowenan@xxxxxxxxxx> >