"Flush the D-cache during copy_user_highpage" breaks compile for v7 on -rc1

[Russell King - ARM Linux]

On Thu, Dec 17, 2009 at 07:19:24PM -0800, Tony Lindgren wrote:
> Hi Catalin,
> 
> You may have already run into this, but if not, looks like commit
> 115b22474eb1905da2f606a057da3455833333d3 breaks compile for v7:
> 
> arch/arm/mm/copypage-v6.c: In function 'v6_copy_user_highpage_nonaliasing':
> arch/arm/mm/copypage-v6.c:51: error: implicit declaration of function '__cpuc_flush_dcache_page'
> 
> Undoing that makes it work again.

It's a combination of changes - my initial changes for fixing the ARMv7
DMA support went in last night, but were based on a tree older than
Catalin's changes, which had already been committed.

My test build didn't catch any of these - it's the usual problem that
there is no way to adequately build-test the ARM kernel in a reasonable
time anymore.