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Re: [PATCH] arm64: hw-breakpoint: Remove superfluous SMP function call

From Anna-Maria Gleixner <anna-maria@linutronix.de>
Newsgroups linux.kernel
Subject Re: [PATCH] arm64: hw-breakpoint: Remove superfluous SMP function call
Date 2016-04-05 11:40 +0200
Message-ID <rkvCO-Zu-13@gated-at.bofh.it> (permalink)
References <rkaf0-1J2-11@gated-at.bofh.it> <rkvt7-Vb-13@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, 5 Apr 2016, Suzuki K. Poulose wrote:

> On 04/04/16 11:42, Anna-Maria Gleixner wrote:
> > Since commit 1cf4f629d9d2 ("cpu/hotplug: Move online calls to
> > hotplugged cpu") it is ensured that callbacks of CPU_ONLINE and
> > CPU_DOWN_PREPARE are processed on the hotplugged cpu. Due to this SMP
> > function calls are no longer required.
> > 
> > Replace smp_call_function_single() with a direct call of
> > hw_breakpoint_reset(). To keep the calling convention, interrupts are
> > explicitely disabled around the call.
> 
> While you are at it, could you please also fix a similar instance
> in arch/arm64/kernel/debug-monitors.c: hw_breakpoint_reset_notify() ?

I already sent a patch for it, but I misspelled the arm mailinglist
address... I bounced it to the mailinglist.

Anna-Maria

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Thread

[PATCH] arm64: hw-breakpoint: Remove superfluous SMP function call Anna-Maria Gleixner <anna-maria@linutronix.de> - 2016-04-04 12:50 +0200
  Re: [PATCH] arm64: hw-breakpoint: Remove superfluous SMP function  call Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-04-04 16:10 +0200
  Re: [PATCH] arm64: hw-breakpoint: Remove superfluous SMP function  call "Suzuki K. Poulose" <Suzuki.Poulose@arm.com> - 2016-04-05 11:30 +0200
    Re: [PATCH] arm64: hw-breakpoint: Remove superfluous SMP function  call Anna-Maria Gleixner <anna-maria@linutronix.de> - 2016-04-05 11:40 +0200

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