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by hqpgpgate102.nvidia.com on Tue, 02 Jun 2020 12:16:01 -0700 Received: from HQMAIL105.nvidia.com (172.20.187.12) by HQMAIL109.nvidia.com (172.20.187.15) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 2 Jun 2020 19:15:54 +0000 Received: from kwankhede-dev.nvidia.com (10.124.1.5) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Tue, 2 Jun 2020 19:15:48 +0000 From: Kirti Wankhede To: , Subject: [PATCH 2/2] vfio iommu: typecast corrections Date: Wed, 3 Jun 2020 00:12:37 +0530 Message-ID: <1591123357-18297-2-git-send-email-kwankhede@nvidia.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1591123357-18297-1-git-send-email-kwankhede@nvidia.com> References: <1591123357-18297-1-git-send-email-kwankhede@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1591125274; bh=5Wj2K9vuNloUX1WzMLTNpeDsMst3FebRuyzK2zg0M7M=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=cBo7n2xs0y/XG43Pmp4cE0XDWwFN6CRR0/k2U0QvCqC2wiK0KeAwjcCQokSzPLZ9D AkJAtp0iaTQxQuJ9GPiQjcIQzxYz6bq7N9FmJ9fzgchpCNYBB2sxFkVmDtS6PboWx3 tz8tgfiI3THfQoqwU+yLY6+oQm+3wlG6IwXsUaAf/VojEIDUhCpT0HBa3/RCTrlOMJ o2C7bfcnViThvxtrwAqfy8OR3w7JNn/8tTqlkeTpaNpXpyS4HNWBKVCNmyw5QmTZGE 0faAGCCNt1IGuJzIbCvtx1IWHtOVeVDbX9yX16/8VREkYattFwQxN0Sk6oSS2gALAy 12pHpWs2kZ7qQ== Received-SPF: pass client-ip=216.228.121.64; envelope-from=kwankhede@nvidia.com; helo=hqnvemgate25.nvidia.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/02 15:15:59 X-ACL-Warn: Detected OS = Windows 7 or 8 [fuzzy] X-Spam_score_int: -70 X-Spam_score: -7.1 X-Spam_bar: ------- X-Spam_report: (-7.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Zhengxiao.zx@Alibaba-inc.com, kevin.tian@intel.com, yi.l.liu@intel.com, yan.y.zhao@intel.com, kvm@vger.kernel.org, eskultet@redhat.com, ziye.yang@intel.com, qemu-devel@nongnu.org, cohuck@redhat.com, shuangtai.tst@alibaba-inc.com, dgilbert@redhat.com, zhi.a.wang@intel.com, mlevitsk@redhat.com, pasic@linux.ibm.com, aik@ozlabs.ru, Kirti Wankhede , eauger@redhat.com, felipe@nutanix.com, jonathan.davies@nutanix.com, changpeng.liu@intel.com, Ken.Xue@amd.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Fixes sparse warnings by adding '__user' in typecast for copy_[from,to]_user() Fixes: d6a4c185660c (vfio iommu: Implementation of ioctl for dirty pages tracking) Signed-off-by: Kirti Wankhede Reported-by: kbuild test robot --- drivers/vfio/vfio_iommu_type1.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/vfio/vfio_iommu_type1.c b/drivers/vfio/vfio_iommu_type1.c index 9d9c8709a24c..5e556ac9102a 100644 --- a/drivers/vfio/vfio_iommu_type1.c +++ b/drivers/vfio/vfio_iommu_type1.c @@ -998,14 +998,14 @@ static int update_user_bitmap(u64 __user *bitmap, struct vfio_iommu *iommu, nbits + shift); if (copy_from_user(&leftover, - (const void *)(bitmap + copy_offset), + (void __user *)(bitmap + copy_offset), sizeof(leftover))) return -EFAULT; bitmap_or(dma->bitmap, dma->bitmap, &leftover, shift); } - if (copy_to_user((void *)(bitmap + copy_offset), dma->bitmap, + if (copy_to_user((void __user *)(bitmap + copy_offset), dma->bitmap, DIRTY_BITMAP_BYTES(nbits + shift))) return -EFAULT;