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-rwxr-xr-xscripts/checkpatch.pl10
1 files changed, 8 insertions, 2 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index ca4445ffe9..6ed34970f9 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2880,14 +2880,20 @@ sub process {
$herecurr);
}
-# check for %L{u,d,i} in strings
+# format strings checks
my $string;
while ($line =~ /(?:^|")([X\t]*)(?:"|$)/g) {
$string = substr($rawline, $-[1], $+[1] - $-[1]);
$string =~ s/%%/__/g;
+ # check for %L{u,d,i} in strings
if ($string =~ /(?<!%)%L[udi]/) {
ERROR("\%Ld/%Lu are not-standard C, use %lld/%llu\n" . $herecurr);
- last;
+ }
+ # check for %# or %0# in printf-style format strings
+ if ($string =~ /(?<!%)%0?#/) {
+ ERROR("Don't use '#' flag of printf format " .
+ "('%#') in format strings, use '0x' " .
+ "prefix instead\n" . $herecurr);
}
}