[1/2] powerpc: Only disable HAVE_EFFICIENT_UNALIGNED_ACCESS on POWER7 little endian

[Michael Ellerman]

On Sun, 2016-25-09 at 12:35:40 UTC, Anton Blanchard wrote:
> From: Anton Blanchard <anton at samba.org>
> 
> POWER8 handles unaligned accesses in little endian mode, but commit
> 0b5e6661ac69 ("powerpc: Don't set HAVE_EFFICIENT_UNALIGNED_ACCESS on
> little endian builds") disabled it for all.
> 
> The issue with unaligned little endian accesses is specific to POWER7,
> so update the Kconfig check to match. Using the stat() testcase from
> commit a75c380c7129 ("powerpc: Enable DCACHE_WORD_ACCESS on ppc64le"),
> performance improves 15% on POWER8.
> 
> Signed-off-by: Anton Blanchard <anton at samba.org>

Series applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/8a18cc0c2c36ee49d70a620ac0190d

cheers