linux-kernel - Re: [syzbot] WARNING in dma_map

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Message-ID: <YpcPgLQlNis0FOT1@infradead.org>
Date:   Wed, 1 Jun 2022 00:04:32 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Hillf Danton <hdanton@...a.com>
Cc:     Christoph Hellwig <hch@...radead.org>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        syzbot <syzbot+3ba551855046ba3b3806@...kaller.appspotmail.com>,
        linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] WARNING in dma_map_sgtable (2)

On Tue, May 31, 2022 at 05:04:18PM +0800, Hillf Danton wrote:
> You are right. Thanks for taking a look.
> 
> And IMO we can do less on the exporter side as the udmabuf misc device
> is different from those that for instance are dma capable on the PCI bus.
> Regular dma games go only on the importer side.

I think you need the relevant maintainers here, this is above my
paygrade.