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authorJoe Perches <joe@perches.com>2015-09-09 15:37:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-09-10 13:29:01 -0700
commit6e30075742316a1d72b7e8f794f6e0bd44d774e2 (patch)
tree33526451b4d8503ef8f6afcb6fd529eed0e613d2
parent7bd7e483c27d884c2f59e286e42623abba413f83 (diff)
checkpatch: emit an error on formats with 0x%<decimal>
Using 0x%d is wrong. Emit a message when it happens. Miscellanea: Improve the %Lu warning to match formats like %16Lu. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rwxr-xr-xscripts/checkpatch.pl8
1 files changed, 6 insertions, 2 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 41ecae81de99..d98ffdd2180f 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -4816,16 +4816,20 @@ sub process {
"Consecutive strings are generally better as a single string\n" . $herecurr);
}
-# check for %L{u,d,i} in strings
+# check for %L{u,d,i} and 0x%[udi] in strings
my $string;
while ($line =~ /(?:^|")([X\t]*)(?:"|$)/g) {
$string = substr($rawline, $-[1], $+[1] - $-[1]);
$string =~ s/%%/__/g;
- if ($string =~ /(?<!%)%L[udi]/) {
+ if ($string =~ /(?<!%)%[\*\d\.\$]*L[udi]/) {
WARN("PRINTF_L",
"\%Ld/%Lu are not-standard C, use %lld/%llu\n" . $herecurr);
last;
}
+ if ($string =~ /0x%[\*\d\.\$\Llzth]*[udi]/) {
+ ERROR("PRINTF_0xDECIMAL",
+ "Prefixing 0x with decimal output is defective\n" . $herecurr);
+ }
}
# check for line continuations in quoted strings with odd counts of "

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