[NET] smc91x: prepare for SMC_IO_SHIFT to be a platform configurable variable
commit159198862adad7109bb347bb30a620f67beac45f
authorEric Miao <eric.miao@marvell.com>
Tue, 24 Jun 2008 05:38:50 +0000 (24 13:38 +0800)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Sat, 12 Jul 2008 20:52:40 +0000 (12 21:52 +0100)
tree2e440d22fa40b41f37922d9c6f2011e07a5e446b
parentc4f0e76747e80578a8f7fddd82fd0ce8127bd2f8
[NET] smc91x: prepare for SMC_IO_SHIFT to be a platform configurable variable

Now one can use the following code

  #define SMC_IO_SHIFT lp->io_shift

to make SMC_IO_SHIFT a variable. This, however, will slightly increase
the CPU overhead and have negative impact on the network performance.
The tradeoff is, this can be specified in the smc91x platform data so
that multiple boards support can be built in a single zImage.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Acked-by: Nicolas Pitre <nico@cam.org>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
drivers/net/smc91x.c
drivers/net/smc91x.h
include/linux/smc91x.h