From: Joerg Roedel <jroedel@suse.de>
Date: Mon, 17 Feb 2020 17:29:55 +0100
Subject: iommu/vt-d: Simplify check in identity_mapping()
Git-commit: 1ddb32da4a629fa7f87873d0b6836c2e1feb7518
References: bsc#1159594
Patch-mainline: v5.6-rc3
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.
Fixes: 1ee0186b9a12 ("iommu/vt-d: Refactor find_domain() helper")
Cc: stable@vger.kernel.org # v5.5
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
drivers/iommu/intel-iommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2789,7 +2789,7 @@ static int identity_mapping(struct devic
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;