From: Vineet Gupta <vgupta@synopsys.com>
Date: Mon, 27 May 2013 13:21:27 +0000 (+0530)
Subject: ARC: K/U SP saved from one location in stack switching macro
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~38^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ba3558c772ce1ac64d07f46b8c763349a0e51ba3;p=pandora-kernel.git

ARC: K/U SP saved from one location in stack switching macro

This paves way for further simplifications.

There's an overhead of 1 insn for the non-common case of interrupt taken
from kernel mode.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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