linux-kernel - Re: [PATCH] smp.c: Quit unconditionally enabling irqs in on_each_cpu

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Date:	Thu, 8 Aug 2013 19:25:46 +0000
From:	Christoph Lameter <cl@...two.org>
To:	David Daney <ddaney.cavm@...il.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Gilad Ben-Yossef <gilad@...yossef.com>,
	linux-kernel@...r.kernel.org, Chris Metcalf <cmetcalf@...era.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	David Daney <david.daney@...ium.com>
Subject: Re: [PATCH] smp.c: Quit unconditionally enabling irqs in
 on_each_cpu_mask().

On Thu, 8 Aug 2013, David Daney wrote:

> I don't know of any bugs currently caused by this unconditional
> local_irq_enable(), but I want to use this function in MIPS/OCTEON
> early boot (when we have early_boot_irqs_disabled).  This also makes
> this function have similar semantics to on_each_cpu() which is good in
> itself.

smp_call_function_many() wants interrupts enabled.
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