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Code Issues Releases Wiki Activity

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>
This commit is contained in:
Mateusz Kulikowski 2015-06-25 15:03:13 -07:00 committed by Linus Torvalds
parent 06330fc40e
commit b6117d175b
1 changed files with 8 additions and 0 deletions
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8
scripts/checkpatch.pl
View File

@ -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 &&