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Message-ID: <20231030182621.GV3952@nvidia.com>
Date: Mon, 30 Oct 2023 15:26:21 -0300
From: Jason Gunthorpe <jgg@...dia.com>
To: Stephen Rothwell <sfr@...b.auug.org.au>
Cc: Joerg Roedel <joro@...tes.org>,
Joao Martins <joao.m.martins@...cle.com>,
Joerg Roedel <jroedel@...e.de>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Linux Next Mailing List <linux-next@...r.kernel.org>,
Nicolin Chen <nicolinc@...dia.com>, Yi Liu <yi.l.liu@...el.com>
Subject: Re: linux-next: manual merge of the iommufd tree with the iommu tree
On Fri, Oct 27, 2023 at 05:15:22PM +1100, Stephen Rothwell wrote:
> Hi all,
>
> On Fri, 27 Oct 2023 15:55:22 +1100 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> >
> > Today's linux-next merge of the iommufd tree got a conflict in:
> >
> > drivers/iommu/iommufd/selftest.c
> >
> > between commits:
> >
> > 1c68cbc64fe6 ("iommu: Add IOMMU_DOMAIN_PLATFORM")
> > 13fbceb1b8e9 ("iommufd: Convert to alloc_domain_paging()")
> >
> > from the iommu tree and commits:
> >
> > 408663619fcf ("iommufd/selftest: Add domain_alloc_user() support in iommu mock")
> > 266ce58989ba ("iommufd/selftest: Test IOMMU_HWPT_ALLOC_DIRTY_TRACKING")
> > 7adf267d66d1 ("iommufd/selftest: Test IOMMU_HWPT_SET_DIRTY_TRACKING")
> > a9af47e382a4 ("iommufd/selftest: Test IOMMU_HWPT_GET_DIRTY_BITMAP")
> > 0795b305da89 ("iommufd/selftest: Test IOMMU_HWPT_GET_DIRTY_BITMAP_NO_CLEAR flag")
> > 65fe32f7a447 ("iommufd/selftest: Add nested domain allocation for mock domain")
> >
> > from the iommufd tree.
> >
> > I fixed it up (see below) and can carry the fix as necessary. This
> > is now fixed as far as linux-next is concerned, but any non trivial
> > conflicts should be mentioned to your upstream maintainer when your tree
> > is submitted for merging. You may also want to consider cooperating
> > with the maintainer of the conflicting tree to minimise any particularly
> > complex conflicts.
>
> The resolution should have been as below (I think).
This was too horrible, I pushed a patch to reorganize the new iommufd side
code to more closely match how the domain_alloc_paging stuff is
supposed to work
Thanks,
Jason
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