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Date: Sat, 4 Dec 2021 06:17:44 +0530 From: Kumar Kartikeya Dwivedi <memxor@...il.com> To: Alexander Lobakin <alexandr.lobakin@...el.com> Cc: Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, Andrii Nakryiko <andrii@...nel.org>, Toke Høiland-Jørgensen <toke@...hat.com>, John Fastabend <john.fastabend@...il.com>, Jesper Dangaard Brouer <hawk@...nel.org>, Nathan Chancellor <nathan@...nel.org>, Nick Desaulniers <ndesaulniers@...gle.com>, netdev@...r.kernel.org, bpf@...r.kernel.org, linux-kernel@...r.kernel.org, llvm@...ts.linux.dev Subject: Re: [PATCH bpf 2/2] samples: bpf: fix 'unknown warning group' build warning on Clang On Sat, Dec 04, 2021 at 01:20:04AM IST, Alexander Lobakin wrote: > Clang doesn't have 'stringop-truncation' group like GCC does, and > complains about it when building samples which use xdp_sample_user > infra: > > samples/bpf/xdp_sample_user.h:48:32: warning: unknown warning group '-Wstringop-truncation', ignored [-Wunknown-warning-option] > #pragma GCC diagnostic ignored "-Wstringop-truncation" > ^ > [ repeat ] > > Those are harmless, but avoidable when guarding it with ifdef. > I could guard push/pop as well, but this would require one more > ifdef cruft around a single line which I don't think is reasonable. > > Fixes: 156f886cf697 ("samples: bpf: Add basic infrastructure for XDP samples") > Signed-off-by: Alexander Lobakin <alexandr.lobakin@...el.com> > --- Acked-by: Kumar Kartikeya Dwivedi <memxor@...il.com> > [...] -- Kartikeya
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