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 <[email protected]> --- scripts/checkpatch.pl | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 89b1df4..0a511b7 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -5035,6 +5035,14 @@ 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 && -- 1.8.4.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
