Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1159817

[PATCH] [media] s5k5baf: Convert use of __constant_cpu_to_be16 to cpu_to_be16

Path csiph.com!aioe.org!gothmog.csi.it!bofh.it!news.nic.it!robomod
From Vaishali Thakkar <vthakkar1994@gmail.com>
Newsgroups linux.kernel
Subject [PATCH] [media] s5k5baf: Convert use of __constant_cpu_to_be16 to cpu_to_be16
Date Sat, 06 Jun 2015 04:00:02 +0200
Message-ID <pybyW-293-3@gated-at.bofh.it> (permalink)
X-Original-To Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Dkim-Signature v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:cc:subject:message-id:mime-version:content-type :content-disposition:user-agent; bh=wB7/GCUjMsGxT3sdqe2lmTjr9PWM+zp60B88ewU5iDo=; b=K2cchO2VtRy0Y+GLFuKw/ESebCqrNJcyBDCniSvnBquaKCgr/yvwwUOmqg5f6UvKSV fh+86yL/WVuqa+5AVhACj8KR0nBXRFbZa0Nm2yJbNxh6WIidYcyhNP4Xzyp/85vtzXXb TnPzcv0UCqLwZy5g0veMla95ezw3q8w3FyakAFZ7A1AcGo+ciEdGSavV3a2jGEY+15fp ZBEYCh/ELJSAqjsKrE64wHccD7GWUYEBg6FjCcUsudCBKr1D4Sv+BTg/6Dr88Ikw2vmo EuFzMEjnmt/gdFDCgv0WF7qxrh/vqcfqu2CpmxG5ATkEYJtZDZRQJx5/7GyAlckPUCO+ Ez4g==
X-Received by 10.66.252.3 with SMTP id zo3mr10078625pac.26.1433555616306; Fri, 05 Jun 2015 18:53:36 -0700 (PDT)
MIME-Version 1.0
Content-Type text/plain; charset=us-ascii
Content-Disposition inline
User-Agent Mutt/1.5.21 (2010-09-15)
Sender robomod@news.nic.it
List-ID <linux-kernel.vger.kernel.org>
X-Mailing-List linux-kernel@vger.kernel.org
Approved robomod@news.nic.it
Lines 40
Organization linux.* mail to news gateway
X-Original-Cc Kyungmin Park <kyungmin.park@samsung.com>, Andrzej Hajda <a.hajda@samsung.com>, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Julia Lawall <julia.lawall@lip6.fr>
X-Original-Date Sat, 6 Jun 2015 07:23:27 +0530
X-Original-Message-ID <20150606015327.GA15272@vaishali-Ideapad-Z570>
X-Original-Sender linux-kernel-owner@vger.kernel.org
Xref aioe.org linux.kernel:1159817

Show key headers only | View raw


In little endian cases, macro cpu_to_be16 unfolds to __swab16 which
provides special case for constants. In big endian cases,
__constant_cpu_to_be16 and cpu_to_be16 expand directly to the
same expression. So, replace __constant_cpu_to_be16 with
cpu_to_be16 with the goal of getting rid of the definition of
__constant_cpu_to_be16 completely.

The semantic patch that performs this transformation is as follows:

@@expression x;@@

- __constant_cpu_to_be16(x)
+ cpu_to_be16(x)

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
---
 drivers/media/i2c/s5k5baf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/i2c/s5k5baf.c b/drivers/media/i2c/s5k5baf.c
index 297ef04..7a43b55 100644
--- a/drivers/media/i2c/s5k5baf.c
+++ b/drivers/media/i2c/s5k5baf.c
@@ -491,7 +491,7 @@ static void s5k5baf_write_arr_seq(struct s5k5baf *state, u16 addr,
 	v4l2_dbg(3, debug, c, "i2c_write_seq(count=%d): %*ph\n", count,
 		 min(2 * count, 64), seq);
 
-	buf[0] = __constant_cpu_to_be16(REG_CMD_BUF);
+	buf[0] = cpu_to_be16(REG_CMD_BUF);
 
 	while (count > 0) {
 		int n = min_t(int, count, ARRAY_SIZE(buf) - 1);
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next | Find similar | Unroll thread


Thread

[PATCH] [media] s5k5baf: Convert use of __constant_cpu_to_be16 to  cpu_to_be16 Vaishali Thakkar <vthakkar1994@gmail.com> - 2015-06-06 04:00 +0200

csiph-web