From: Catalin Marinas <catalin.marinas@arm.com>
Date: Wed, 24 Apr 2013 13:41:37 +0000 (+0100)
Subject: ARM: 7703/1: Disable preemption in broadcast_tlb*_a15_erratum()
X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~51^2~1^3~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3eb0be304273054fd2ae34367f96127d082e310c;p=pandora-kernel.git

ARM: 7703/1: Disable preemption in broadcast_tlb*_a15_erratum()

Commit 93dc688 (ARM: 7684/1: errata: Workaround for Cortex-A15 erratum
798181 (TLBI/DSB operations)) introduces calls to smp_processor_id() and
smp_call_function_many() with preemption enabled. This patch disables
preemption and also optimises the smp_processor_id() call in
broadcast_tlb_mm_a15_erratum(). The broadcast_tlb_a15_erratum() function
is changed to use smp_call_function() which disables preemption.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Geoff Levand <geoff@infradead.org>
Reported-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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