[PATCH] scripts/checkpatch.pl: Add WARN on printk format split onmultiple lines

[Joe Perches]

On Sun, 2009-12-20 at 20:15 +0100, Ingo Molnar wrote:
> Checkpatch should warn about printk 
> lines that end with a '"', those are almost always a sign of some ill-advised 
> break-the-string artifact.

Perhaps something like this:

diff from Andy Whitcroft's testing script,
where logFunctions is defined.
http://www.kernel.org/pub/linux/kernel/people/apw/checkpatch/checkpatch.pl-testing

--- a/scripts/checkpatch.pl-testing	2009-12-20 11:35:28.000000000 -0800
+++ b/scripts/checkpatch.pl-testing	2009-12-20 11:35:46.000000000 -0800
@@ -1398,6 +1398,11 @@
 			WARN("line over 80 characters\n" . $herecurr);
 		}
 
+#Logging function format split over multiple lines
+		if ($line =~ /^\+\s*$logFunctions.*"\s*$/) {
+			WARN("Don't split logging function format\n" . $herecurr);
+		}
+
 # check for adding lines without a newline.
 		if ($line =~ /^\+/ && defined $lines[$linenr] && $lines[$linenr] =~ /^\\ No newline at end of file/) {
 			WARN("adding a line without newline at end of file\n" . $herecurr);


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