From: Joerg Roedel <joro@8bytes.org>
To: Lu Baolu <baolu.lu@linux.intel.com>,
David Woodhouse <dwmw2@infradead.org>
Cc: Joerg Roedel <joro@8bytes.org>,
jroedel@suse.de, iommu@lists.linux-foundation.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 5/5] iommu/vt-d: Simplify check in identity_mapping()
Date: Mon, 17 Feb 2020 20:38:58 +0100 [thread overview]
Message-ID: <20200217193858.26990-6-joro@8bytes.org> (raw)
In-Reply-To: <20200217193858.26990-1-joro@8bytes.org>
From: Joerg Roedel <jroedel@suse.de>
The function only has one call-site and there it is never called with
dummy or deferred devices. Simplify the check in the function to
account for that.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
drivers/iommu/intel-iommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 16e47ca505eb..0b5a0fadbc0c 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2916,7 +2916,7 @@ static int identity_mapping(struct device *dev)
struct device_domain_info *info;
info = dev->archdata.iommu;
- if (info && info != DUMMY_DEVICE_DOMAIN_INFO && info != DEFER_DEVICE_DOMAIN_INFO)
+ if (info)
return (info->domain == si_domain);
return 0;
--
2.17.1
next prev parent reply other threads:[~2020-02-17 19:39 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-17 19:38 [PATCH 0/5] iommu/vt-d: Fix kdump boot with VT-d enabled Joerg Roedel
2020-02-17 19:38 ` [PATCH 1/5] iommu/vt-d: Add attach_deferred() helper Joerg Roedel
2020-02-17 19:50 ` Jerry Snitselaar
2020-02-18 17:14 ` Christoph Hellwig
2020-02-19 9:29 ` Joerg Roedel
2020-02-17 19:38 ` [PATCH 2/5] iommu/vt-d: Move deferred device attachment into helper function Joerg Roedel
2020-02-17 19:50 ` Jerry Snitselaar
2020-02-18 17:16 ` Christoph Hellwig
2020-02-17 19:38 ` [PATCH 3/5] iommu/vt-d: Do deferred attachment in iommu_need_mapping() Joerg Roedel
2020-02-17 19:51 ` Jerry Snitselaar
2020-02-18 2:38 ` Lu Baolu
2020-02-18 9:28 ` [PATCH 3/5 v2] " Joerg Roedel
2020-02-18 11:54 ` Lu Baolu
2020-02-18 16:22 ` Joerg Roedel
2020-02-18 15:53 ` Jerry Snitselaar
2020-02-17 19:38 ` [PATCH 4/5] iommu/vt-d: Remove deferred_attach_domain() Joerg Roedel
2020-02-17 19:51 ` Jerry Snitselaar
2020-02-17 19:38 ` Joerg Roedel [this message]
2020-02-17 19:54 ` [PATCH 5/5] iommu/vt-d: Simplify check in identity_mapping() Jerry Snitselaar
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