From: Zhang Zhen <zhenzhang.zhang@huawei.com>
Date: Sat, 13 Dec 2014 00:55:33 +0000 (-0800)
Subject: memory-hotplug: remove redundant call of page_to_pfn
X-Git-Tag: omap-for-v3.19/fixes-rc1~100^2~70
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=71fbd556adde2795787a6ca4c16871e57efba847;p=pandora-kernel.git

memory-hotplug: remove redundant call of page_to_pfn

This is just a small optimization.  The start_pfn can be obtained directly
by phys_index << PFN_SECTION_SHIFT.  So the call of page_to_pfn() is
redundant and remove it.

Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: Wang Nan <wangnan0@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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