tree b1103f78dc0d410d4a5129a147e7311a1e8da2ea
parent 35bdafb576c5c0a06815e7a681571c3ab950ff7e
author Thomas Gleixner <tglx@linutronix.de> 1397204002 +0000
committer Marc Kleine-Budde <mkl@pengutronix.de> 1398370141 +0200

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>