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Date: Sat, 14 May 2016 18:36:23 +0200 From: Wim Van Sebroeck <wim@...ana.be> To: Richard Cochran <rcochran@...utronix.de> Cc: linux-kernel@...r.kernel.org, rt@...utronix.de, Guenter Roeck <linux@...ck-us.net>, linux-watchdog@...r.kernel.org Subject: Re: [PATCH 2/5] watchdog: octeon: Handle the FROZEN hot plug notifier actions. Hi Richard, > When performing a suspend operation, the kernel brings all of the > non-boot CPUs offline, calling the hot plug notifiers with the flag, > CPU_TASKS_FROZEN, set in the action code. Similarly, during resume, > the CPUs are brought back online, but again the notifiers have the > FROZEN flag set. > > While some very few drivers really need to treat suspend/resume > specially, this driver unintentionally ignores the notifications. > > This patch changes the driver to disable the watchdog interrupt > whenever the CPU goes offline, and to enable it whenever the CPU goes > back online. As a result, the suspended state is no longer a special > case that leaves the watchdog active. > > Cc: Wim Van Sebroeck <wim@...ana.be> > Cc: Guenter Roeck <linux@...ck-us.net> > Cc: linux-watchdog@...r.kernel.org > Signed-off-by: Richard Cochran <rcochran@...utronix.de> > --- > drivers/watchdog/octeon-wdt-main.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) This patch has been added to linux-watchdog-next. Kind regards, Wim.
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