From 309c00c73f053a905d144b430d4fb55d811085e2 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 22 Mar 2011 16:34:44 -0700 Subject: [PATCH] checkpatch: warn about memset with swapped arguments Because the second and third arguments of memset have the same type, it turns out to be really easy to mix them up. This bug comes up time after time, so checkpatch should really be checking for it at patch submission time. Signed-off-by: Dave Jones Cc: Steven Rostedt Cc: Andy Whitcroft Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- scripts/checkpatch.pl | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 19abef2b4dd5..8f9e394298cd 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -2902,6 +2902,11 @@ sub process { $line =~ /DEVICE_ATTR.*S_IWUGO/ ) { WARN("Exporting world writable files is usually an error. Consider more restrictive permissions.\n" . $herecurr); } + + # Check for memset with swapped arguments + if ($line =~ /memset.*\,(\ |)(0x|)0(\ |0|)\);/) { + ERROR("memset size is 3rd argument, not the second.\n" . $herecurr); + } } # If we have no input at all, then there is nothing to report on -- GitLab