linux-kernel - Re: [PATCH v11 3/8] iommu: Add iommu_copy_struct_from_user

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Message-ID: <ZaAdbHbV27msSxtV@Asurada-Nvidia>
Date: Thu, 11 Jan 2024 08:55:08 -0800
From: Nicolin Chen <nicolinc@...dia.com>
To: Yi Liu <yi.l.liu@...el.com>
CC: <joro@...tes.org>, <alex.williamson@...hat.com>, <jgg@...dia.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>, <joao.m.martins@...cle.com>,
	<xin.zeng@...el.com>, <yan.y.zhao@...el.com>, <j.granados@...sung.com>,
	<binbin.wu@...ux.intel.com>
Subject: Re: [PATCH v11 3/8] iommu: Add iommu_copy_struct_from_user_array
 helper

On Wed, Jan 10, 2024 at 08:10:10PM -0800, Yi Liu wrote:

> +#define iommu_copy_struct_from_user_array(kdst, user_array, data_type,   \
> +                                         index, min_last)                \
> +       __iommu_copy_struct_from_user_array(kdst, user_array, data_type, \
> +                                           index, sizeof(*kdst),        \
> +                                           offsetofend(typeof(*kdst),   \
> +                                                       min_last))
 
There is an extra space before '\' at the 2nd line, making it:

390 #define iommu_copy_struct_from_user_array(kdst, user_array, data_type,   \
391                                           index, min_last)                \
392         __iommu_copy_struct_from_user_array(kdst, user_array, data_type, \
393                                             index, sizeof(*kdst),        \
394                                             offsetofend(typeof(*kdst),   \
395                                                         min_last))