From: Jiang Liu <liuj97@gmail.com>
Date: Fri, 30 Mar 2012 15:11:35 +0000 (+0800)
Subject: x86: Return IRQ_SET_MASK_OK_NOCOPY from irq affinity functions
X-Git-Tag: v3.6-rc1~91^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f841d792e38f75f5e25b0b66f7b5d235d180a735;p=pandora-kernel.git

x86: Return IRQ_SET_MASK_OK_NOCOPY from irq affinity functions

The interrupt chip irq_set_affinity() functions copy the affinity mask
to irq_data->affinity but return 0, i.e. IRQ_SET_MASK_OK.
IRQ_SET_MASK_OK causes the core code to do another redundant copy.

Return IRQ_SET_MASK_OK_NOCOPY to avoid this.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Naga Chumbalkar <nagananda.chumbalkar@hp.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Cliff Wickman <cpw@sgi.com>
Cc: Jiang Liu <liuj97@gmail.com>
Cc: Keping Chen <chenkeping@huawei.com>
Link: http://lkml.kernel.org/r/1333120296-13563-4-git-send-email-jiang.liu@huawei.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

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