[PATCH v2 0/3] ARC: IO: rework IO accessors

Fixing of DW SPI which was broken by commit 07906b3dad15 ("ARC: Switch to generic accessors") lead me to several fixes in ARC IO accessors code.

Eugeniy Paltsev (3): ARC: IO: add volatile to accessors ARC: IO: add compiler barriers to IO accessors ARC: IO: add MB for __raw_* memory accessors

arch/arc/include/asm/io.h | 93 +++++++++++++++++++++++++-------------- 1 file changed, 60 insertions(+), 33 deletions(-)