From e1dd70de339101607f9047b94e51c3027bed4578 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 15 Mar 2016 14:58:01 -0700
Subject: [PATCH] checkpatch: exclude asm volatile from complex macro check

asm volatile and all its variants like __asm__ __volatile__ ("<foo>")
are reported as errors with "Macros with with complex values should be
enclosed in parentheses".

Make an exception for these asm volatile macro definitions by converting
the "asm volatile" to "asm_volatile" so it appears as a single function
call and the error isn't reported.

Signed-off-by: Joe Perches <joe@perches.com>
Reported-by: Jeff Merkey <linux.mdb@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 0147c91fa549e..5c00c1c02dab6 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -4560,6 +4560,9 @@ sub process {
 			{
 			}
 
+			# Make asm volatile uses seem like a generic function
+			$dstat =~ s/\b_*asm_*\s+_*volatile_*\b/asm_volatile/g;
+
 			my $exceptions = qr{
 				$Declare|
 				module_param_named|
-- 
2.39.5