linux-kernel - [PATCH] checkpatch: Add check for use of sizeof without parenthesis

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Date:	Fri,  6 Jul 2012 14:58:24 -0700
From:	Joe Perches <joe@...ches.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Andy Whitcroft <apw@...onical.com>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] checkpatch: Add check for use of sizeof without parenthesis

Kernel style uses parenthesis around sizeof.

Signed-off-by: Joe Perches <joe@...ches.com>
---
 scripts/checkpatch.pl |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 7190f95..a743622 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3265,6 +3265,12 @@ sub process {
 			     "sizeof(& should be avoided\n" . $herecurr);
 		}
 
+# check for sizeof without parenthesis
+		if ($line =~ /\bsizeof\s+($Lval)/) {
+			WARN("SIZEOF_PARENTHESIS",
+			     "sizeof $1 should be sizeof($1)\n" . $herecurr);
+		}
+
 # check for line continuations in quoted strings with odd counts of "
 		if ($rawline =~ /\\$/ && $rawline =~ tr/"/"/ % 2) {
 			WARN("LINE_CONTINUATIONS",
-- 
1.7.8.111.gad25c.dirty

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