From: Changhwan Youn <chaos.youn@samsung.com>
Date: Wed, 29 Sep 2010 11:31:42 +0000 (+0900)
Subject: ARM: S5PV310: Optimize interrupt source searching code
X-Git-Tag: v2.6.37-rc1~23^2^2~2^2~80
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0c0f909689c8387265a3682d4205c063071ec36a;p=pandora-kernel.git

ARM: S5PV310: Optimize interrupt source searching code

It is reported by Junseok Jung that using clz instruction is
better instead of using for-loop to find the interrupt source.
This patch modifies interrupt source searching code using __ffs().
The __ffs() is implemented using clz instruction.

Suggested-by: Junseok Jung <jundols.jung@samsung.com>
Signed-off-by: Changhwan Youn <chaos.youn@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---

Reading git-diff-tree failed