Re: [PATCH 02/15] swiotlb: remove dma_mark_clean

[Tony Luck <tony.luck@xxxxxxxxx>]

On Wed, Jan 2, 2019 at 11:23 PM Christoph Hellwig <hch@xxxxxx> wrote:
> I think something like the patch below should fix it:
>
> diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
> index ccd56f5df8cd..8d7396bd1790 100644
> --- a/arch/ia64/Kconfig
> +++ b/arch/ia64/Kconfig
> @@ -31,7 +31,7 @@ config IA64
>         select HAVE_MEMBLOCK_NODE_MAP
>         select HAVE_VIRT_CPU_ACCOUNTING
>         select ARCH_HAS_DMA_COHERENT_TO_PFN if SWIOTLB
> -       select ARCH_HAS_SYNC_DMA_FOR_CPU
> +       select ARCH_HAS_SYNC_DMA_FOR_CPU if SWIOTLB

Close. But no cigar. Now I get:

  CC      arch/ia64/mm/init.o
arch/ia64/mm/init.c:75:6: error: redefinition of ‘arch_sync_dma_for_cpu’
./include/linux/dma-noncoherent.h:61:20: note: previous definition of
‘arch_sync_dma_for_cpu’ was here
make[1]: *** [arch/ia64/mm/init.o] Error 1
make: *** [arch/ia64/mm/init.o] Error 2


-Tony