linux-kernel - [PATCH] checkpatch: Add a "prefer _

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Date:	Thu, 09 Jun 2011 10:03:44 -0700
From:	Joe Perches <joe@...ches.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Pekka Enberg <penberg@...helsinki.fi>,
	Christoph Lameter <cl@...ux.com>,
	David Rientjes <rientjes@...gle.com>,
	Eric Dumazet <eric.dumazet@...il.com>,
	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	kamezawa.hiroyu@...fujitsu.com, kosaki.motohiro@...fujitsu.com
Subject: [PATCH] checkpatch: Add a "prefer __aligned" check

Prefer the use of __aligned(size) over __attribute__((__aligned___(size)))

Link: http://lkml.kernel.org/r/20110609094526.1571774c.akpm@linux-foundation.org
Suggested-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Joe Perches <joe@...ches.com>
---

On Thu, 2011-06-09 at 09:45 -0700, Andrew Morton wrote:
> I guess we need a "hey, use __aligned" checkpatch rule.

 scripts/checkpatch.pl |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
 
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 8657f99..352626c 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2743,6 +2743,11 @@ sub process {
 			WARN("__packed is preferred over __attribute__((packed))\n" . $herecurr);
 		}
 
+# Check for __attribute__ aligned, prefer __aligned
+		if ($line =~ /\b__attribute__\s*\(\s*\(.*aligned/) {
+			WARN("__aligned(size) is preferred over __attribute__((aligned(size)))\n" . $herecurr);
+		}
+
 # check for sizeof(&)
 		if ($line =~ /\bsizeof\s*\(\s*\&/) {
 			WARN("sizeof(& should be avoided\n" . $herecurr);



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