From 71fbd556adde2795787a6ca4c16871e57efba847 Mon Sep 17 00:00:00 2001
From: Zhang Zhen <zhenzhang.zhang@huawei.com>
Date: Fri, 12 Dec 2014 16:55:33 -0800
Subject: [PATCH] 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>
---
Reading git-format-patch failed