linux-kernel - RE: [PATCH v2 03/12] iommu: Remove unrecoverable fault data

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Message-ID: <BN9PR11MB52767976314CC61A0F8BEFD08C08A@BN9PR11MB5276.namprd11.prod.outlook.com>
Date:   Thu, 3 Aug 2023 07:54:41 +0000
From:   "Tian, Kevin" <kevin.tian@...el.com>
To:     Lu Baolu <baolu.lu@...ux.intel.com>,
        Joerg Roedel <joro@...tes.org>,
        "Will Deacon" <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        "Jason Gunthorpe" <jgg@...pe.ca>,
        Jean-Philippe Brucker <jean-philippe@...aro.org>,
        Nicolin Chen <nicolinc@...dia.com>
CC:     "Liu, Yi L" <yi.l.liu@...el.com>,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        "iommu@...ts.linux.dev" <iommu@...ts.linux.dev>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v2 03/12] iommu: Remove unrecoverable fault data

> From: Lu Baolu <baolu.lu@...ux.intel.com>
> Sent: Thursday, July 27, 2023 1:48 PM
>
>  struct iommu_fault {
>  	__u32	type;
> -	__u32	padding;

this padding should be kept.

> -	union {
> -		struct iommu_fault_unrecoverable event;
> -		struct iommu_fault_page_request prm;
> -		__u8 padding2[56];
> -	};
> +	struct iommu_fault_page_request prm;
>  };