From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752770AbaIJPy5 (ORCPT ); Wed, 10 Sep 2014 11:54:57 -0400 Received: from mail-wi0-f177.google.com ([209.85.212.177]:38474 "EHLO mail-wi0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752487AbaIJPyx (ORCPT ); Wed, 10 Sep 2014 11:54:53 -0400 From: David Herrmann To: dri-devel@lists.freedesktop.org Cc: Dave Airlie , Daniel Vetter , Jingoo Han , Bryan Wu , Lee Jones , Matthew Garrett , Adam Jackson , linux-kernel@vger.kernel.org, David Herrmann Subject: [PATCH RFC 1/4] backlight: use static initializers Date: Wed, 10 Sep 2014 17:54:20 +0200 Message-Id: <1410364463-12692-2-git-send-email-dh.herrmann@gmail.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1410364463-12692-1-git-send-email-dh.herrmann@gmail.com> References: <1410364463-12692-1-git-send-email-dh.herrmann@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use static initializers instead of setting up global variables during runtime. This reduces code size and execution time. Signed-off-by: David Herrmann --- drivers/video/backlight/backlight.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c index bddc8b1..726c6c6 100644 --- a/drivers/video/backlight/backlight.c +++ b/drivers/video/backlight/backlight.c @@ -21,9 +21,9 @@ #include #endif -static struct list_head backlight_dev_list; -static struct mutex backlight_dev_list_mutex; -static struct blocking_notifier_head backlight_notifier; +static LIST_HEAD(backlight_dev_list); +static DEFINE_MUTEX(backlight_dev_list_mutex); +static BLOCKING_NOTIFIER_HEAD(backlight_notifier); static const char *const backlight_types[] = { [BACKLIGHT_RAW] = "raw", @@ -582,9 +582,6 @@ static int __init backlight_class_init(void) backlight_class->dev_groups = bl_device_groups; backlight_class->pm = &backlight_class_dev_pm_ops; - INIT_LIST_HEAD(&backlight_dev_list); - mutex_init(&backlight_dev_list_mutex); - BLOCKING_INIT_NOTIFIER_HEAD(&backlight_notifier); return 0; } -- 2.1.0