From patchwork Sun Jul 13 15:30:27 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guenter Roeck X-Patchwork-Id: 4541621 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id E11BB9F36A for ; Sun, 13 Jul 2014 15:33:29 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 210232015E for ; Sun, 13 Jul 2014 15:33:29 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5228F2012F for ; Sun, 13 Jul 2014 15:33:28 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1X6LkI-0002V0-51; Sun, 13 Jul 2014 15:31:22 +0000 Received: from mail-pd0-x22a.google.com ([2607:f8b0:400e:c02::22a]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1X6Lk5-0002Ku-Nm for linux-arm-kernel@lists.infradead.org; Sun, 13 Jul 2014 15:31:10 +0000 Received: by mail-pd0-f170.google.com with SMTP id g10so1677522pdj.15 for ; Sun, 13 Jul 2014 08:30:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=vlg24H/JZ4vnKpz7k9MOfQQHAROnqX1kVvW3xbKnRC8=; b=Y7302eVyZgFcRW8d/WoaRV+mNom/3RMIO1yrOont5MqIufYaxTqjE/ZvupL3g0D7Ud Ux+e2Zkk1+yk9XTTDZiJ5HdHyoUP9h/82+Ig+BZ356kQgq/uHixw08hW0qkTs2X0JjjC g/hGBZlHXhteiS/H8ueAOceyfyqJw5IqOQ9mPWAPcbH37wTzVNderRl+RF8sbL097RAN KqDY4oOfyu9bWoTIVIVRrjhKXjdsyROAJuLsPVSlASRnqtyAWEn1A4J0ExMVqW4N5uMq sYEDGVsKAAZUE5vSit/qNh2kU3NR2WPhE4g9fNSnyncgpFyHVbllG2ppX0sTAVCAdpjz DmkQ== X-Received: by 10.68.99.194 with SMTP id es2mr11495092pbb.100.1405265448352; Sun, 13 Jul 2014 08:30:48 -0700 (PDT) Received: from localhost (108-223-40-66.lightspeed.sntcca.sbcglobal.net. [108.223.40.66]) by mx.google.com with ESMTPSA id qk9sm34430617pac.16.2014.07.13.08.30.46 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Sun, 13 Jul 2014 08:30:47 -0700 (PDT) From: Guenter Roeck To: linux-watchdog@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 3/7] arm: Support restart through restart notifier call chain Date: Sun, 13 Jul 2014 08:30:27 -0700 Message-Id: <1405265431-4561-4-git-send-email-linux@roeck-us.net> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1405265431-4561-1-git-send-email-linux@roeck-us.net> References: <1405265431-4561-1-git-send-email-linux@roeck-us.net> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140713_083109_790157_31500F6F X-CRM114-Status: GOOD ( 11.61 ) X-Spam-Score: -0.4 (/) Cc: Ingo Molnar , Russell King , Heiko Stuebner , Arnd Bergmann , linux-doc@vger.kernel.org, Dmitry Eremin-Solenikov , Catalin Marinas , Tomasz Figa , Randy Dunlap , Will Deacon , linux-kernel@vger.kernel.org, Steven Rostedt , Jonas Jensen , Wim Van Sebroeck , Maxime Ripard , David Woodhouse , Andrew Morton , Guenter Roeck X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-1.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, RP_MATCHES_RCVD, T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=no version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The kernel core now supports a notifier call chain for system restart functions. With this change, the arm_pm_restart callback is now optional, so check if it is set before calling it. Only call the notifier functions if arm_pm_restart is not set. Signed-off-by: Guenter Roeck --- v4: No change. v3: Use wrapper function to execute notifier call chain. v2: Only call notifier call chain if arm_pm_restart is not set. Do not include linux/watchdog.h. arch/arm/kernel/process.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index 81ef686..5d191e3 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -230,7 +230,10 @@ void machine_restart(char *cmd) local_irq_disable(); smp_send_stop(); - arm_pm_restart(reboot_mode, cmd); + if (arm_pm_restart) + arm_pm_restart(reboot_mode, cmd); + else + kernel_restart_notify(cmd); /* Give a grace period for failure to restart of 1s */ mdelay(1000);