linux-kernel - Re: [PATCH] sparc32: Page align size in arch_dma

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Date:   Tue, 14 Sep 2021 08:12:22 +0200
From:   Christoph Hellwig <hch@....de>
To:     Sam Ravnborg <sam@...nborg.org>
Cc:     Andreas Larsson <andreas@...sler.com>,
        David Miller <davem@...emloft.net>, sparclinux@...r.kernel.org,
        Christoph Hellwig <hch@....de>, linux-kernel@...r.kernel.org,
        software@...sler.com
Subject: Re: [PATCH] sparc32: Page align size in arch_dma_alloc

On Wed, Sep 08, 2021 at 06:04:54PM +0200, Sam Ravnborg wrote:
> Hi Andreas,
> 
> On Wed, Sep 08, 2021 at 09:48:22AM +0200, Andreas Larsson wrote:
> > Commit 53b7670e5735 ("sparc: factor the dma coherent mapping into
> > helper") lost the page align for the calls to dma_make_coherent and
> > srmmu_unmapiorange. The latter cannot handle a non page aligned len
> > argument.
> 
> I wonder how you managed to track this down - well done.
> > 
> > Signed-off-by: Andreas Larsson <andreas@...sler.com>
> Reviewed-by: Sam Ravnborg <sam@...nborg.org>
> 
> I assume David or Christoph picks it up.

I'll happily pick it up if that is ok.  Dave?