xtensa: use for_each_sg()
authorAkinobu Mita <akinobu.mita@gmail.com>
Wed, 24 Jun 2015 23:55:51 +0000 (16:55 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 25 Jun 2015 00:49:40 +0000 (17:49 -0700)
commit3693a84d3b8b2fd4db1f1b22f33793eb84a66420
tree4f8e5305fda1c5e15daaa01bec5e4935bd1a371c
parentf51c0eaee39e306458d2bf8a30e010615fa451cc
xtensa: use for_each_sg()

This replaces the plain loop over the sglist array with for_each_sg()
macro which consists of sg_next() function calls.  Since xtensa doesn't
select ARCH_HAS_SG_CHAIN, it is not necessary to use for_each_sg() in
order to loop over each sg element.  But this can help find problems
with drivers that do not properly initialize their sg tables when
CONFIG_DEBUG_SG is enabled.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/xtensa/include/asm/dma-mapping.h