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| author | Alexander Lobakin <alexandr.lobakin@intel.com> | 2021-12-03 22:50:04 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-27 13:03:29 +0300 |
| commit | 1a51d9d60325e0642419d0b6b42df9183fbcaacd (patch) | |
| tree | ef89315a65c68df75b211a06830a587d2182f6fb /samples | |
| parent | d891664e39adcee2f3c3b4988b3c7d5991324e2b (diff) | |
| download | linux-1a51d9d60325e0642419d0b6b42df9183fbcaacd.tar.xz | |
samples: bpf: Fix 'unknown warning group' build warning on Clang
[ 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>
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/bpf/xdp_sample_user.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/samples/bpf/xdp_sample_user.h b/samples/bpf/xdp_sample_user.h index d97465ff8c62..5f44b877ecf5 100644 --- a/samples/bpf/xdp_sample_user.h +++ b/samples/bpf/xdp_sample_user.h @@ -45,7 +45,9 @@ const char *get_driver_name(int ifindex); 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) { |