From: Shaokun Zhang <zhangshaokun@hisilicon.com>
To: <iommu@lists.linux-foundation.org>
Cc: Shaokun Zhang <zhangshaokun@hisilicon.com>,
Will Deacon <will@kernel.org>
Subject: [PATCH RESEND] iommu/amd: Remove duplicate check of devid
Date: Fri, 9 Apr 2021 11:30:40 +0800 [thread overview]
Message-ID: <1617939040-35579-1-git-send-email-zhangshaokun@hisilicon.com> (raw)
'devid' has been checked in function check_device, no need to double
check and clean up this.
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
---
drivers/iommu/amd/iommu.c | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index b4fa94a97446..cd1a85ff2cf4 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -1677,9 +1677,6 @@ static struct iommu_device *amd_iommu_probe_device(struct device *dev)
return ERR_PTR(-ENODEV);
devid = get_device_id(dev);
- if (devid < 0)
- return ERR_PTR(devid);
-
iommu = amd_iommu_rlookup_table[devid];
if (dev_iommu_priv_get(dev))
@@ -1961,16 +1958,12 @@ static void amd_iommu_detach_device(struct iommu_domain *dom,
struct device *dev)
{
struct iommu_dev_data *dev_data = dev_iommu_priv_get(dev);
+ int devid = get_device_id(dev);
struct amd_iommu *iommu;
- int devid;
if (!check_device(dev))
return;
- devid = get_device_id(dev);
- if (devid < 0)
- return;
-
if (dev_data->domain != NULL)
detach_device(dev);
--
2.7.4
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next reply other threads:[~2021-04-09 3:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-09 3:30 Shaokun Zhang [this message]
2021-04-15 13:40 ` [PATCH RESEND] iommu/amd: Remove duplicate check of devid Joerg Roedel
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