checkpatch: fix UNNECESSARY_KERN_LEVEL false positive
authorPaolo Bonzini <pbonzini@redhat.com>
Fri, 13 Feb 2015 22:38:26 +0000 (14:38 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 14 Feb 2015 05:21:39 +0000 (21:21 -0800)
KERN_<LEVEL> is never redundant with printk_ratelimited or printk_once.
(Except perhaps in the sense that you could use e.g.  pr_err_ratelimited
or pr_err_once, but that would apply to printk as well).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: Andy Whitcroft <apw@canonical.com>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
scripts/checkpatch.pl

index 221a2b245690504a291034e4974eb496a5942f93..f130c93a5656b23be023a563ce8b279cdd20daac 100755 (executable)
@@ -4547,7 +4547,7 @@ sub process {
                }
 
 # check for logging functions with KERN_<LEVEL>
-               if ($line !~ /printk\s*\(/ &&
+               if ($line !~ /printk(?:_ratelimited|_once)?\s*\(/ &&
                    $line =~ /\b$logFunctions\s*\(.*\b(KERN_[A-Z]+)\b/) {
                        my $level = $1;
                        if (WARN("UNNECESSARY_KERN_LEVEL",