Re: [PATCH] sparc32: Page align size in arch_dma_alloc

[Christoph Hellwig]

On Tue, Sep 14, 2021 at 01:16:16PM +0200, Andreas Larsson wrote:
> Before the patch, arch_dma_alloc did via srmmu_mapiorange set up pages with 
> SRMMU_PRIV, which is all fine as it sets up kernel buffers. With your patch 
> we get PAGE_KERNEL as an argument to dma_pgprot in the corresponding call 
> path that earlier lead to arch_dma_alloc. PAGE_KERNEL already includes 
> SRMMU_PRIV so adding it again should not be necessary.

You're right, I missed that PAGE_KERNEL already includes SRMMU_PRIV.