[ Upstream commit
6f670d06e47c774bc065aaa84a527a4838f34bd8 ]
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@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
Signed-off-by: Sasha Levin <sashal@kernel.org>
int get_mac_addr(int ifindex, void *mac_addr);
#pragma GCC diagnostic push
+#ifndef __clang__
#pragma GCC diagnostic ignored "-Wstringop-truncation"
+#endif
__attribute__((unused))
static inline char *safe_strncpy(char *dst, const char *src, size_t size)
{