From: Jason Gunthorpe <jgg@ziepe.ca>
To: Robin Murphy <robin.murphy@arm.com>
Cc: alex.williamson@redhat.com, cohuck@redhat.com,
iommu@lists.linux-foundation.org, kvm@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] vfio: Stop using iommu_present()
Date: Tue, 5 Apr 2022 16:04:11 -0300 [thread overview]
Message-ID: <20220405190411.GT64706@ziepe.ca> (raw)
In-Reply-To: <537103bbd7246574f37f2c88704d7824a3a889f2.1649160714.git.robin.murphy@arm.com>
On Tue, Apr 05, 2022 at 01:11:54PM +0100, Robin Murphy wrote:
> IOMMU groups have been mandatory for some time now, so a device without
> one is necessarily a device without any usable IOMMU, therefore the
> iommu_present() check is redundant (or at best unhelpful).
>
> Signed-off-by: Robin Murphy <robin.murphy@arm.com>
> ---
> drivers/vfio/vfio.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Jason
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next prev parent reply other threads:[~2022-04-05 19:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-05 12:11 [PATCH] vfio: Stop using iommu_present() Robin Murphy
2022-04-05 19:04 ` Jason Gunthorpe [this message]
2022-05-12 18:21 ` Alex Williamson
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