linux-kernel - Re: [PATCH v7 3/4] iommufd: Add IOMMU_GET_HW

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Date:   Tue, 15 Aug 2023 11:58:00 -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 v7 3/4] iommufd: Add IOMMU_GET_HW_INFO

On Tue, Aug 15, 2023 at 03:56:37PM -0300, Jason Gunthorpe wrote:
> On Tue, Aug 15, 2023 at 11:53:26AM -0700, Nicolin Chen wrote:
> > > 	ops = dev_iommu_ops(idev->dev);
> > > 	if (!ops->hw_info) {
> > > 		data = ops->hw_info(idev->dev, &data_len, &cmd->out_data_type);
> > 
> > It should be:
> >  	if (ops->hw_info) {
> 
> Hmm, the test suite probably needs some more stuff then too since it
> passed like that :)

Ack. I will see what I can do.