linux-kernel - Re: types: reuse common phys_vec type instead of DMABUF open‑coded variant

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Message-ID: <184b3699-1eb6-4701-b827-47b34e997af2@kernel.dk>
Date: Sun, 18 Jan 2026 09:58:24 -0700
From: Jens Axboe <axboe@...nel.dk>
To: Alex Williamson <alex@...zbot.org>, Leon Romanovsky <leon@...nel.org>
Cc: linux-media@...r.kernel.org, dri-devel@...ts.freedesktop.org,
 linaro-mm-sig@...ts.linaro.org, linux-kernel@...r.kernel.org,
 iommu@...ts.linux.dev, kvm@...r.kernel.org,
 Sumit Semwal <sumit.semwal@...aro.org>,
 Christian König <christian.koenig@....com>,
 Jason Gunthorpe <jgg@...pe.ca>, Kevin Tian <kevin.tian@...el.com>,
 Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
 Robin Murphy <robin.murphy@....com>, Yishai Hadas <yishaih@...dia.com>,
 Shameer Kolothum <skolothumtho@...dia.com>, Ankit Agrawal
 <ankita@...dia.com>, Matthew Wilcox <willy@...radead.org>
Subject: Re: types: reuse common phys_vec type instead of DMABUF open‑coded variant

On 1/16/26 10:14 AM, Alex Williamson wrote:
> On Wed, 14 Jan 2026 14:18:19 +0200
> Leon Romanovsky <leon@...nel.org> wrote:
> 
>> On Wed, Jan 07, 2026 at 11:14:14AM +0200, Leon Romanovsky wrote:
>>> From: Leon Romanovsky <leonro@...dia.com>
>>>
>>> After commit fcf463b92a08 ("types: move phys_vec definition to common header"),
>>> we can use the shared phys_vec type instead of the DMABUF?specific
>>> dma_buf_phys_vec, which duplicated the same structure and semantics.
>>>
>>> Signed-off-by: Leon Romanovsky <leonro@...dia.com>
>>> ---
>>> Alex,
>>>
>>> According to diffstat, VFIO is the subsystem with the largest set of changes,
>>> so it would be great if you could take it through your tree.
>>>
>>> The series is based on the for-7.0/blk-pvec shared branch from Jens:
>>> https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git/log/?h=for-7.0/blk-pvec
>>>
>>> Thanks
>>> ---  
>>
>> Alex,
>>
>> Could you please move this patch forward? We have the RDMA series [1] that
>> depends on this rename, and I would like to base it on the shared branch.
>>
>> [1] https://lore.kernel.org/all/20260108-dmabuf-export-v1-0-6d47d46580d3@nvidia.com/
> 
> I tried to ping Jens regarding why the branch with this code hasn't
> been merged into their for-next branch, maybe you have more traction.
> Thanks,

I get a lot of emails, and pings inside existing series don't always get
seen... Usually better to do a forward for a ping, then it's a lot more
likely to get seen sooner.

-- 
Jens Axboe