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X-UUID: 611b96dc5baf4b4eb1ff4fb9afb2de9e-20200711 Received: from mtkcas08.mediatek.inc [(172.21.101.126)] by mailgw01.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 1840359348; Sat, 11 Jul 2020 14:50:39 +0800 Received: from mtkcas08.mediatek.inc (172.21.101.126) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 11 Jul 2020 14:50:36 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 11 Jul 2020 14:50:35 +0800 From: Yong Wu To: Joerg Roedel , Matthias Brugger , Rob Herring , Robin Murphy Subject: [PATCH 06/21] iommu/io-pgtable-arm-v7s: Use ias to check the valid iova in unmap Date: Sat, 11 Jul 2020 14:48:31 +0800 Message-ID: <20200711064846.16007-7-yong.wu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200711064846.16007-1-yong.wu@mediatek.com> References: <20200711064846.16007-1-yong.wu@mediatek.com> MIME-Version: 1.0 X-MTK: N Cc: youlin.pei@mediatek.com, devicetree@vger.kernel.org, Nicolas Boichat , cui.zhang@mediatek.com, srv_heupstream@mediatek.com, chao.hao@mediatek.com, linux-kernel@vger.kernel.org, Evan Green , Tomasz Figa , iommu@lists.linux-foundation.org, linux-mediatek@lists.infradead.org, ming-fan.chen@mediatek.com, anan.sun@mediatek.com, Will Deacon , linux-arm-kernel@lists.infradead.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" As title. Signed-off-by: Yong Wu --- drivers/iommu/io-pgtable-arm-v7s.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c index 4272fe4e17f4..01f2a8876808 100644 --- a/drivers/iommu/io-pgtable-arm-v7s.c +++ b/drivers/iommu/io-pgtable-arm-v7s.c @@ -717,7 +717,7 @@ static size_t arm_v7s_unmap(struct io_pgtable_ops *ops, unsigned long iova, { struct arm_v7s_io_pgtable *data = io_pgtable_ops_to_data(ops); - if (WARN_ON(upper_32_bits(iova))) + if (WARN_ON(iova >= (1ULL << data->iop.cfg.ias))) return 0; return __arm_v7s_unmap(data, gather, iova, size, 1, data->pgd); -- 2.18.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu