From: Dmitry Osipenko <digetx@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Joerg Roedel <joro@8bytes.org>
Cc: iommu@lists.linux-foundation.org, linux-tegra@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v1 2/4] iommu/tegra: gart: Fix gart_iommu_unmap()
Date: Mon, 9 Apr 2018 23:07:20 +0300 [thread overview]
Message-ID: <dd25a9ff7bad7c92b345c0c0ce2bf235c4c3b6e8.1523304324.git.digetx@gmail.com> (raw)
In-Reply-To: <cover.1523304324.git.digetx@gmail.com>
In-Reply-To: <cover.1523304324.git.digetx@gmail.com>
It must return the number of unmapped bytes on success, returning 0 means
that unmapping failed and in result only one page is unmapped.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
drivers/iommu/tegra-gart.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c
index 4c0abdcd1ad2..89ec24c6952c 100644
--- a/drivers/iommu/tegra-gart.c
+++ b/drivers/iommu/tegra-gart.c
@@ -313,7 +313,7 @@ static size_t gart_iommu_unmap(struct iommu_domain *domain, unsigned long iova,
gart_set_pte(gart, iova, 0);
FLUSH_GART_REGS(gart);
spin_unlock_irqrestore(&gart->pte_lock, flags);
- return 0;
+ return bytes;
}
static phys_addr_t gart_iommu_iova_to_phys(struct iommu_domain *domain,
--
2.16.3
next prev parent reply other threads:[~2018-04-09 20:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-09 20:07 [PATCH v1 0/4] Tegra GART fixes and improvements Dmitry Osipenko
2018-04-09 20:07 ` [PATCH v1 1/4] iommu/tegra: gart: Add debugging facility Dmitry Osipenko
2018-04-27 9:46 ` Thierry Reding
2018-04-09 20:07 ` Dmitry Osipenko [this message]
2018-04-27 9:43 ` [PATCH v1 2/4] iommu/tegra: gart: Fix gart_iommu_unmap() Thierry Reding
2018-04-09 20:07 ` [PATCH v1 3/4] iommu/tegra: gart: Constify number of GART pages Dmitry Osipenko
2018-04-27 9:49 ` Thierry Reding
2018-04-09 20:07 ` [PATCH v1 4/4] iommu/tegra: gart: Optimize map/unmap Dmitry Osipenko
2018-04-27 10:02 ` Thierry Reding
2018-04-27 12:01 ` Dmitry Osipenko
2018-04-27 12:36 ` Robin Murphy
2018-05-06 21:19 ` Dmitry Osipenko
2018-05-07 8:04 ` Joerg Roedel
2018-05-07 15:51 ` Dmitry Osipenko
2018-05-07 17:38 ` Dmitry Osipenko
2018-05-07 7:59 ` Joerg Roedel
2018-05-07 15:46 ` Dmitry Osipenko
2018-05-03 12:52 ` [PATCH v1 0/4] Tegra GART fixes and improvements Joerg Roedel
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