Re: [trivial PATCH] treewide: Fix printks with 0x%#

[Joe Perches <joe@perches.com>]

On Tue, 2013-08-27 at 01:39 -0400, Mike Frysinger wrote:
> On Thursday 25 July 2013 14:53:25 Joe Perches wrote:
> > Using 0x%# emits 0x0x.  Only one is necessary.
> 
> sounds like a job for checkpatch.pl :)

Here.  Submit it yourself...
---
 scripts/checkpatch.pl | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 9ba4fc4..520f8e7 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3869,6 +3869,18 @@ sub process {
 			}
 		}
 
+# check for formats with "0x%#"
+		if ($line =~ /"X*"/) {
+			my $fmt = get_quoted_string($line, $rawline);
+			if ($fmt =~ /0x%#/) {
+				if (WARN("REDUNDANT_HEX",
+					 "Redundant hex prefix 0x format\n" . $herecurr) &&
+				    $fix) {
+					$fixed[$linenr - 1] =~ s/0x%#/%#/g;
+				}
+			}
+		}
+
 # Check for misused memsets
 		if ($^V && $^V ge 5.10.0 &&
 		    defined $stat &&