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| author | Mateusz Kulikowski <mateusz.kulikowski@gmail.com> | 2015-06-26 00:03:13 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-06-26 02:00:42 +0200 |
| commit | b6117d175be9972fc300f826e6f2bf9c589e0919 (patch) | |
| tree | de2fc88e4163194fb3c30941ac7762ae7f084411 /scripts/checkpatch.pl | |
| parent | checkpatch: avoid NOT_UNIFIED_DIFF errors on cover-letter.patch files (diff) | |
| download | linux-b6117d175be9972fc300f826e6f2bf9c589e0919.tar.xz linux-b6117d175be9972fc300f826e6f2bf9c589e0919.zip | |
checkpatch: suggest using ether_addr_equal*()
Check if memcmp() is used to compare ethernet addresses and suggest using
ether_addr_equal() or ether_addr_equal_unaligned()
Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Acked-by: Joe Perches <joe@perches.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts/checkpatch.pl')
| -rwxr-xr-x | scripts/checkpatch.pl | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 69c4716d9e27..f04fe88d998d 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -5157,6 +5157,14 @@ sub process { } } +# Check for memcmp(foo, bar, ETH_ALEN) that could be ether_addr_equal*(foo, bar) + if ($^V && $^V ge 5.10.0 && + defined $stat && + $stat =~ /^\+(?:.*?)\bmemcmp\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*ETH_ALEN\s*\)/) { + WARN("PREFER_ETHER_ADDR_EQUAL", + "Prefer ether_addr_equal() or ether_addr_equal_unaligned() over memcmp()\n" . "$here\n$stat\n") + } + # typecasts on min/max could be min_t/max_t if ($^V && $^V ge 5.10.0 && defined $stat && |