[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20200711064846.16007-7-yong.wu@mediatek.com>
Date: Sat, 11 Jul 2020 14:48:31 +0800
From: Yong Wu <yong.wu@...iatek.com>
To: Joerg Roedel <joro@...tes.org>,
Matthias Brugger <matthias.bgg@...il.com>,
Rob Herring <robh+dt@...nel.org>,
Robin Murphy <robin.murphy@....com>
CC: Will Deacon <will@...nel.org>, Evan Green <evgreen@...omium.org>,
Tomasz Figa <tfiga@...gle.com>,
<linux-mediatek@...ts.infradead.org>,
<srv_heupstream@...iatek.com>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<iommu@...ts.linux-foundation.org>, <yong.wu@...iatek.com>,
<youlin.pei@...iatek.com>, Nicolas Boichat <drinkcat@...omium.org>,
<anan.sun@...iatek.com>, <cui.zhang@...iatek.com>,
<chao.hao@...iatek.com>, <ming-fan.chen@...iatek.com>
Subject: [PATCH 06/21] iommu/io-pgtable-arm-v7s: Use ias to check the valid iova in unmap
As title.
Signed-off-by: Yong Wu <yong.wu@...iatek.com>
---
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
Powered by blists - more mailing lists