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Date: Wed, 29 Mar 2017 23:20:48 +0200 From: "Rafael J. Wysocki" <rjw@...ysocki.net> To: Viresh Kumar <viresh.kumar@...aro.org> Cc: Ingo Molnar <mingo@...hat.com>, Peter Zijlstra <peterz@...radead.org>, linaro-kernel@...ts.linaro.org, linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, Vincent Guittot <vincent.guittot@...aro.org>, smuckle.linux@...il.com, juri.lelli@....com, Morten.Rasmussen@....com, patrick.bellasi@....com, eas-dev@...ts.linaro.org Subject: Re: [RFC 2/9] irq_work: add irq_work_queue_on for !CONFIG_SMP On Thursday, March 09, 2017 05:15:12 PM Viresh Kumar wrote: > From: Steve Muckle <smuckle.linux@...il.com> > > Having irq_work_queue_on() available for !CONFIG_SMP can make some > call sites cleaner. > > Signed-off-by: Steve Muckle <smuckle.linux@...il.com> > Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org> > --- > include/linux/irq_work.h | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/include/linux/irq_work.h b/include/linux/irq_work.h > index 47b9ebd4a74f..0195c3502d6b 100644 > --- a/include/linux/irq_work.h > +++ b/include/linux/irq_work.h > @@ -1,6 +1,7 @@ > #ifndef _LINUX_IRQ_WORK_H > #define _LINUX_IRQ_WORK_H > > +#include <linux/bug.h> > #include <linux/llist.h> > > /* > @@ -36,6 +37,12 @@ bool irq_work_queue(struct irq_work *work); > > #ifdef CONFIG_SMP > bool irq_work_queue_on(struct irq_work *work, int cpu); > +#else > +static inline bool irq_work_queue_on(struct irq_work *work, int cpu) > +{ > + BUG_ON(cpu != 0); Would WARN_ON(), or WARN_ON_ONCE() even, be insufficient? > + return irq_work_queue(work); > +} > #endif > > void irq_work_tick(void); > Thanks, Rafael
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