linux-kernel - Re: [PATCH v4 4/4] iommufd/selftest: Add coverage for IOMMU_GET_HW

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Message-ID: <ZMIsTzdVlwSHMrly@Asurada-Nvidia>
Date:   Thu, 27 Jul 2023 01:35:27 -0700
From:   Nicolin Chen <nicolinc@...dia.com>
To:     Jason Gunthorpe <jgg@...dia.com>
CC:     Yi Liu <yi.l.liu@...el.com>, <joro@...tes.org>,
        <alex.williamson@...hat.com>, <kevin.tian@...el.com>,
        <robin.murphy@....com>, <baolu.lu@...ux.intel.com>,
        <cohuck@...hat.com>, <eric.auger@...hat.com>,
        <kvm@...r.kernel.org>, <mjrosato@...ux.ibm.com>,
        <chao.p.peng@...ux.intel.com>, <yi.y.sun@...ux.intel.com>,
        <peterx@...hat.com>, <jasowang@...hat.com>,
        <shameerali.kolothum.thodi@...wei.com>, <lulu@...hat.com>,
        <suravee.suthikulpanit@....com>, <iommu@...ts.linux.dev>,
        <linux-kernel@...r.kernel.org>, <linux-kselftest@...r.kernel.org>,
        <zhenzhong.duan@...el.com>
Subject: Re: [PATCH v4 4/4] iommufd/selftest: Add coverage for
 IOMMU_GET_HW_INFO ioctl

On Mon, Jul 24, 2023 at 02:52:14PM -0300, Jason Gunthorpe wrote:
> On Mon, Jul 24, 2023 at 03:59:36AM -0700, Yi Liu wrote:
> > diff --git a/tools/testing/selftests/iommu/iommufd_utils.h b/tools/testing/selftests/iommu/iommufd_utils.h
> > index 70353e68e599..f13df84f6b42 100644
> > --- a/tools/testing/selftests/iommu/iommufd_utils.h
> > +++ b/tools/testing/selftests/iommu/iommufd_utils.h
> > @@ -348,3 +348,29 @@ static void teardown_iommufd(int fd, struct __test_metadata *_metadata)
> >  	})
> >  
> >  #endif
> > +
> > +static int _test_cmd_get_hw_info(int fd, __u32 device_id,
> > +				 __u32 data_len, void *data)
> 
> void * data,size_t data_len

OK!