From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934805AbcLMRcW (ORCPT ); Tue, 13 Dec 2016 12:32:22 -0500 Received: from mail-pf0-f194.google.com ([209.85.192.194]:33996 "EHLO mail-pf0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933460AbcLMRcC (ORCPT ); Tue, 13 Dec 2016 12:32:02 -0500 From: Bhumika Goyal To: julia.lawall@lip6.fr, mchehab@kernel.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Bhumika Goyal Subject: [PATCH] drivers: media: i2c: ml86v7667: constify v4l2_subdev_* structures Date: Tue, 13 Dec 2016 23:01:45 +0530 Message-Id: <1481650305-12428-1-git-send-email-bhumirks@gmail.com> X-Mailer: git-send-email 1.9.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org v4l2_subdev_{core/video}_ops structures are stored in the fields of the v4l2_subdev_ops structure which are of type const. Also, v4l2_subdev_ops structure is passed to a function having its argument of type const. As these structures are never modified, so declare them as const. Done using Coccinelle: (One of the scripts used) @r1 disable optional_qualifier @ identifier i; position p; @@ static struct v4l2_subdev_ops i@p = {...}; @ok1@ identifier r1.i; position p; @@ v4l2_i2c_subdev_init(...,&i@p) @bad@ position p!={r1.p,ok1.p}; identifier r1.i; @@ i@p @depends on !bad disable optional_qualifier@ identifier r1.i; @@ +const struct v4l2_subdev_ops i; File size before: text data bss dec hex filename 2732 608 8 3348 d14 drivers/media/i2c/ml86v7667.o File size after: text data bss dec hex filename 3100 232 8 3340 d0c drivers/media/i2c/ml86v7667.o Signed-off-by: Bhumika Goyal --- drivers/media/i2c/ml86v7667.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/media/i2c/ml86v7667.c b/drivers/media/i2c/ml86v7667.c index 38a20fe..57ef901 100644 --- a/drivers/media/i2c/ml86v7667.c +++ b/drivers/media/i2c/ml86v7667.c @@ -290,7 +290,7 @@ static int ml86v7667_s_register(struct v4l2_subdev *sd, .s_ctrl = ml86v7667_s_ctrl, }; -static struct v4l2_subdev_video_ops ml86v7667_subdev_video_ops = { +static const struct v4l2_subdev_video_ops ml86v7667_subdev_video_ops = { .g_std = ml86v7667_g_std, .s_std = ml86v7667_s_std, .querystd = ml86v7667_querystd, @@ -304,14 +304,14 @@ static int ml86v7667_s_register(struct v4l2_subdev *sd, .set_fmt = ml86v7667_fill_fmt, }; -static struct v4l2_subdev_core_ops ml86v7667_subdev_core_ops = { +static const struct v4l2_subdev_core_ops ml86v7667_subdev_core_ops = { #ifdef CONFIG_VIDEO_ADV_DEBUG .g_register = ml86v7667_g_register, .s_register = ml86v7667_s_register, #endif }; -static struct v4l2_subdev_ops ml86v7667_subdev_ops = { +static const struct v4l2_subdev_ops ml86v7667_subdev_ops = { .core = &ml86v7667_subdev_core_ops, .video = &ml86v7667_subdev_video_ops, .pad = &ml86v7667_subdev_pad_ops, -- 1.9.1