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authorJoe Perches <joe@perches.com>2013-11-12 15:10:11 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-13 12:09:25 +0900
commitc1fd7bb99637e69994d26df5f6e33192319d3866 (patch)
tree875cadcd10bc9375fefe44ebe665e4666cc4bb53 /scripts
parente970b8846ae4763e64be3c93dc06b4eaebf9ad63 (diff)
downloadlinux-linaro-stable-c1fd7bb99637e69994d26df5f6e33192319d3866.tar.gz
checkpatch: make the memory barrier test noisier
Peter Zijlstra prefers that comments be required near uses of memory barriers. Change the message level for memory barrier uses from a --strict test only to a normal WARN so it's always emitted. This might produce false positives around insertions of memory barriers when a comment is outside the patch context block. And checkpatch is still stupid, it only looks for existence of any comment, not at the comment content. Signed-off-by: Joe Perches <joe@perches.com> Suggested-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Oliver Neukum <oliver@neukum.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/checkpatch.pl4
1 files changed, 2 insertions, 2 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 23d55bfcb5af..2e40f64ed77f 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3850,8 +3850,8 @@ sub process {
# check for memory barriers without a comment.
if ($line =~ /\b(mb|rmb|wmb|read_barrier_depends|smp_mb|smp_rmb|smp_wmb|smp_read_barrier_depends)\(/) {
if (!ctx_has_comment($first_line, $linenr)) {
- CHK("MEMORY_BARRIER",
- "memory barrier without comment\n" . $herecurr);
+ WARN("MEMORY_BARRIER",
+ "memory barrier without comment\n" . $herecurr);
}
}
# check of hardware specific defines