From: David Daney <david.daney@cavium.com>
Date: Wed, 11 Sep 2013 21:23:29 +0000 (-0700)
Subject: kernel/smp.c: quit unconditionally enabling irqs in on_each_cpu_mask().
X-Git-Tag: v3.12-rc1~52^2~142
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=202da400570d991bacda4a06e878cb901e96a783;p=pandora-kernel.git

kernel/smp.c: quit unconditionally enabling irqs in on_each_cpu_mask().

As in commit f21afc25f9ed ("smp.h: Use local_irq_{save,restore}() in
!SMP version of on_each_cpu()"), we don't want to enable irqs if they
are not already enabled.

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.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: Gilad Ben-Yossef <gilad@benyossef.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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