checkpatch: allow printk strings to exceed 80 characters to maintain their searchability

Allow printk strings to break the 80 character width limits, thus keeping
them complete and searchable.
Signed-off-by: NAndy Whitcroft <apw@shadowen.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

scripts/checkpatch.pl

@@ -1138,7 +1138,9 @@ sub process {
 		}
 #80 column limit
 		if ($line =~ /^\+/ && $prevrawline !~ /\/\*\*/ &&
-		    $rawline !~ /^.\s*\*\s*\@$Ident\s/ && $length > 80)
+		    $rawline !~ /^.\s*\*\s*\@$Ident\s/ &&
+		    $line !~ /^\+\s*printk\s*\(\s*(?:KERN_\S+\s*)?"[X\t]*"\s*(?:,|\)\s*;)\s*$/ &&
+		    $length > 80)
 		{
 			WARN("line over 80 characters\n" . $herecurr);
 		}