lkml.org 
[lkml]   [2015]   [Apr]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Subject[PATCH] checkpatch: Avoid "spaces required around that ':'" false positive
From
Date
Since commit 1f65f947a6a8 ("checkpatch: add checks for
question mark and colon spacing") back in 2008, checkpatch
has reported false positive for asm volatile uses of "::"
checkpatch thinks colons should always have spaces around it.

Add an exception for colons with colons on either side for
this valid asm volatile (and c++) use.

Signed-off-by: Joe Perches <joe@perches.com>
Reported-by: Yehuda Yitschak <yehuday@marvell.com>
---
On Tue, 2015-04-14 at 08:46 +0000, Yehuda Yitschak wrote:
> i believe i found a false positive in checkpatch script
> When embedding ARM assembly code in C files checkpatch shouts about spaces after semicolon but that's the syntax of inline assembly.
> ERROR: spaces required around that ':' (ctx:WxO)
> #43: FILE: arch/arm64/kernel/perf_event.c:1221:
> + asm volatile("msr pmuserenr_el0, %0" :: "r" (0xf));

scripts/checkpatch.pl | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 78a951f..bf1cc43 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3837,6 +3837,14 @@ sub process {
$ok = 1;
}

+ # for asm volatile statements
+ # ignore a colon with another
+ # colon immediately before or after
+ if (($op eq ':') &&
+ ($ca =~ /:$/ || $cc =~ /^:/)) {
+ $ok = 1;
+ }
+
# messages are ERROR, but ?: are CHK
if ($ok == 0) {
my $msg_type = \&ERROR;



\
 
 \ /
  Last update: 2015-04-14 16:21    [W:0.025 / U:1.112 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site