On Wed, Jul 09, 2014 at 05:11:37PM +0200, Thierry Reding wrote:

From: Thierry Reding <redacted>

This patch implements generic versions of readsb(), readsw(), readsl(),
readsq(), writesb(), writesw(), writesl() and writesq(). Variants of
these string functions for I/O accesses (ins*() and outs*() as well as
ioread*_rep() and iowrite*_rep()) are now implemented in terms of the
new functions.

While at it, also make sure that any of the functions provided as
fallback for architectures that don't override them can't be overridden
subsequently.

This is compile- and runtime-tested on 32-bit and 64-bit ARM and compile
tested on Microblaze, s390, SPARC and Xtensa. For ARC, Blackfin, Metag,
OpenRISC, Score and Unicore32 which also use asm-generic/io.h I couldn't
find or build a cross-compiler that would run on my system. But by code
inspection they shouldn't break with this patch.

Looks good. When this is in mainline I will try to convert sparc64
to use asm-generic/io.h too.
Last I tried this did not fly because there were some #define
missing and then I lost track of it.

	Sam