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

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Message-Id: <20210914.123959.2004307654918303528.davem@davemloft.net>
Date:   Tue, 14 Sep 2021 12:39:59 +0100 (BST)
From:   David Miller <davem@...emloft.net>
To:     hch@....de
Cc:     sam@...nborg.org, andreas@...sler.com, sparclinux@...r.kernel.org,
        linux-kernel@...r.kernel.org, software@...sler.com
Subject: Re: [PATCH] sparc32: Page align size in arch_dma_alloc

From: Christoph Hellwig <hch@....de>
Date: Tue, 14 Sep 2021 08:12:22 +0200

> 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?

Yep, it's ok.