All of lore.kernel.org
 help / color / mirror / Atom feed
From: simran singhal <singhalsimran0@gmail.com>
To: lars@metafoo.de
Cc: Michael Hennerich <Michael.Hennerich@analog.com>,
	Jonathan Cameron <jic23@kernel.org>,
	Hartmut Knaack <knaack.h@gmx.de>,
	Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
	linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org,
	outreachy-kernel@googlegroups.com
Subject: [PATCH] iio: dac: ad5504: constify attribute_group structures
Date: Wed, 29 Mar 2017 01:51:48 +0530	[thread overview]
Message-ID: <20170328202147.GA21830@singhal-Inspiron-5558> (raw)

Check for attribute_group structures that are only stored in the
event_attrs filed of iio_info structure. As the event_attrs field of
iio_info structures is constant, so these attribute_group structures can
also be declared constant. Done using coccinelle:

@r1 disable optional_qualifier @
identifier i;
position p;
@@
static struct attribute_group i@p = {...};

@ok1@
identifier r1.i;
position p;
struct iio_info x;
@@
x.event_attrs=&i@p;

@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
static
+const
struct attribute_group i={...};

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct attribute_group i;

File size before:
   text    data     bss     dec     hex filename
   3046     360       0    3406     d4e drivers/iio/dac/ad5504.o

File size after:
   text	   data	    bss	    dec	    hex	filename
   3110	    296	      0	   3406	    d4e	drivers/iio/dac/ad5504.o

Signed-off-by: simran singhal <singhalsimran0@gmail.com>
---
 drivers/iio/dac/ad5504.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/dac/ad5504.c b/drivers/iio/dac/ad5504.c
index 788b3d6..22a027d 100644
--- a/drivers/iio/dac/ad5504.c
+++ b/drivers/iio/dac/ad5504.c
@@ -212,7 +212,7 @@ static struct attribute *ad5504_ev_attributes[] = {
 	NULL,
 };
 
-static struct attribute_group ad5504_ev_attribute_group = {
+static const struct attribute_group ad5504_ev_attribute_group = {
 	.attrs = ad5504_ev_attributes,
 };
 
-- 
2.7.4



             reply	other threads:[~2017-03-28 20:21 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-28 20:21 simran singhal [this message]
2017-03-29 21:09 ` [PATCH] iio: dac: ad5504: constify attribute_group structures Jonathan Cameron
2017-03-29 21:28   ` SIMRAN SINGHAL

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20170328202147.GA21830@singhal-Inspiron-5558 \
    --to=singhalsimran0@gmail.com \
    --cc=Michael.Hennerich@analog.com \
    --cc=jic23@kernel.org \
    --cc=knaack.h@gmx.de \
    --cc=lars@metafoo.de \
    --cc=linux-iio@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=outreachy-kernel@googlegroups.com \
    --cc=pmeerw@pmeerw.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.