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Date: Mon, 24 Oct 2022 13:52:50 -0300 From: Jason Gunthorpe <jgg@...dia.com> To: Niklas Schnelle <schnelle@...ux.ibm.com> Cc: iommu@...ts.linux.dev, Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com>, Matthew Rosato <mjrosato@...ux.ibm.com>, Gerd Bayer <gbayer@...ux.ibm.com>, Pierre Morel <pmorel@...ux.ibm.com>, linux-s390@...r.kernel.org, borntraeger@...ux.ibm.com, hca@...ux.ibm.com, gor@...ux.ibm.com, gerald.schaefer@...ux.ibm.com, agordeev@...ux.ibm.com, svens@...ux.ibm.com, linux-kernel@...r.kernel.org Subject: Re: [PATCH v7 2/6] iommu/s390: Get rid of s390_domain_device On Mon, Oct 17, 2022 at 02:45:54PM +0200, Niklas Schnelle wrote: > The struct s390_domain_device serves the sole purpose as list entry for > the devices list of a struct s390_domain. As it contains no additional > information besides a list_head and a pointer to the struct zpci_dev we > can simplify things and just thread the device list through struct > zpci_dev directly. This removes the need to allocate during domain > attach and gets rid of one level of indirection during mapping > operations. > > Reviewed-by: Matthew Rosato <mjrosato@...ux.ibm.com> > Signed-off-by: Niklas Schnelle <schnelle@...ux.ibm.com> > --- > v5->v6: > - On attach failure make sure the IOAT is not registered > and zdev->dma_table == NULL > - Dropped Jason's R-b Reviewed-by: Jason Gunthorpe <jgg@...dia.com> Jason
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