i2c: reduce parent checking to a NOOP in non-I2C_MUX case
authorPhil Carmody <phil.carmody@partner.samsung.com>
Wed, 26 Jun 2013 07:56:35 +0000 (10:56 +0300)
committerWolfram Sang <wsa@the-dreams.de>
Wed, 7 Aug 2013 14:58:08 +0000 (16:58 +0200)
commit3923172b3d700486c1ca24df9c4c5405a83e2309
treeb7f9ec98c0f30b21c7cf08874ae2f2fce2309f66
parent825642455367e5498da82a8044dd345ac7869c8d
i2c: reduce parent checking to a NOOP in non-I2C_MUX case

In 0826374 - i2c: Multiplexed I2C bus core support
core i2c code increased in size and complexity even when I2C_MUX
wasn't selected.

Turning this check into a constant NULL in the n case lets the
client functions in be simplified too, not needing to include
never-called calls to the mux-specific helpers.

Signed-off-by: Phil Carmody <phil.carmody@partner.samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
include/linux/i2c.h