linux-kernel - [PATCH v2 2/7] arm64: Support restart through restart notifier call chain

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Message-Id: <1404689900-27421-3-git-send-email-linux@roeck-us.net>
Date:	Sun,  6 Jul 2014 16:38:15 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	linux-watchdog@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Cc:	Wim Van Sebroeck <wim@...ana.be>,
	Catalin Marinas <catalin.marinas@....com>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Will Deacon <will.deacon@....com>,
	Arnd Bergmann <arnd@...db.de>,
	Heiko Stuebner <heiko@...ech.de>,
	Russell King <linux@....linux.org.uk>,
	Jonas Jensen <jonas.jensen@...il.com>,
	Randy Dunlap <rdunlap@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Ingo Molnar <mingo@...nel.org>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	David Woodhouse <dwmw2@...radead.org>,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	Guenter Roeck <linux@...ck-us.net>
Subject: [PATCH v2 2/7] arm64: Support restart through restart notifier call chain

The kernel core now supports a notifier call chain to restart
the system. Call it if arm_pm_restart is not set.

Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
v2: Only call notifier call chain if arm_pm_restart is not set
    Do not include linux/watchdog.h

 arch/arm64/kernel/process.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 43b7c34..585ebe2 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -174,6 +174,9 @@ void machine_restart(char *cmd)
 	/* Now call the architecture specific reboot code. */
 	if (arm_pm_restart)
 		arm_pm_restart(reboot_mode, cmd);
+	else
+		blocking_notifier_call_chain(&restart_notifier_list,
+					     reboot_mode, cmd);
 
 	/*
 	 * Whoops - the architecture was unable to reboot.
-- 
1.9.1

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