From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 11 Apr 2014 08:13:22 +0000 (+0000)
Subject: can: c_can: Speed up tx buffer invalidation
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~214^2~39^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=939415973fdfb2c16a474e2575ba2581b828ccac;p=pandora-kernel.git

can: c_can: Speed up tx buffer invalidation

It's suffcient to kill the TXIE bit in the message control register
even if the documentation of C and D CAN says that it's not allowed to
do that while MSGVAL is set. Reality tells a different story and this
change gives us another 2% of CPU back for not waiting on I/O.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---

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