samples: bpf: Fix 'unknown warning group' build warning on Clang
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: 156f886c ("samples: bpf: Add basic infrastructure for XDP samples") Signed-off-by:Alexander Lobakin <alexandr.lobakin@intel.com> Signed-off-by:
Andrii Nakryiko <andrii@kernel.org> Acked-by:
Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/bpf/20211203195004.5803-3-alexandr.lobakin@intel.com
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