checkpatch: %Lx tests should hand %% as a literal

Ensure that we handle literal %'s correctly when adjacent to a %Lx.

	%Lx	bad
	%%Lx	good
	%%%Lx	bad

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 6ddae89c3cfa..c7980ff2975e 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2392,6 +2392,7 @@ sub process {
                 my $string;
                 while ($line =~ /(?:^|")([X\t]*)(?:"|$)/g) {
                         $string = substr($rawline, $-[1], $+[1] - $-[1]);
+                        $string =~ s/%%/__/g;
                         if ($string =~ /(?<!%)%L[udi]/) {
                                 WARN("\%Ld/%Lu are not-standard C, use %lld/%llu\n" . $herecurr);
                                 last;