linux-kernel - [PATCH 4/5] checkpatch: high precidence operators do not require additional parentheses in #defines

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Date:	Thu,  1 Mar 2012 12:44:09 +0000
From:	Andy Whitcroft <apw@...onical.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Joe Perches <joe@...ches.com>, linux-kernel@...r.kernel.org,
	Andy Whitcroft <apw@...onical.com>
Subject: [PATCH 4/5] checkpatch: high precidence operators do not require additional parentheses in #defines

With any very high precidence operator it is not necessary to enforce
additional parentheses around simple negated expressions.  This prevents
us requesting further perentheses around the following:

    #define PMEM_IS_FREE(id, index) !(pmem[id].bitmap[index].allocated)

For now add logical and bitwise not and unary minus.

Signed-off-by: Andy Whitcroft <apw@...onical.com>
---
 scripts/checkpatch.pl |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 35189de..610036e 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2850,7 +2850,7 @@ sub process {
 			if ($dstat ne '' &&
 			    $dstat !~ /^(?:$Ident|-?$Constant),$/ &&			# 10, // foo(),
 			    $dstat !~ /^(?:$Ident|-?$Constant);$/ &&			# foo();
-			    $dstat !~ /^(?:$Ident|-?$Constant)$/ &&			# 10 // foo()
+			    $dstat !~ /^[!~-]?(?:$Ident|$Constant)$/ &&		# 10 // foo() // !foo // ~foo // -foo
 			    $dstat !~ /^'X'$/ &&					# character constants
 			    $dstat !~ /$exceptions/ &&
 			    $dstat !~ /^\.$Ident\s*=/ &&				# .foo =
-- 
1.7.9

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