From: Douglas Anderson <dianders@chromium.org>
Date: Thu, 27 Jun 2013 03:32:06 +0000 (+0100)
Subject: ARM: 7777/1: Avoid extra calls to the C compiler
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~41^2~1^3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1b21376a737aeaa82320ae014b8e1c2c53cfc479;p=pandora-kernel.git

ARM: 7777/1: Avoid extra calls to the C compiler

Starting up the C compiler can be a slow operation on some systems.
Though these calls don't individually take a lot of time, they add up.
Rearrange the ARM Makefile a bit to avoid extra calls to the compiler
when they can be easily avoided.

When running with the Chrome OS ARM cross compiler
"armv7a-cros-linux-gnueabi-", this shaved .55 seconds (from 5.31
seconds to 4.76 seconds) off an incremental build of the kernel:
  time make -j32 ARCH=arm CROSS_COMPILE=armv7a-cros-linux-gnueabi-

Thanks to Mike Frysinger for the clean trick to make this work.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

Reading git-diff-tree failed