Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.5 006/150] iommu/vt-d: Simplify check in identity_mapping() | Date | Thu, 27 Feb 2020 14:35:43 +0100 |
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From: Joerg Roedel <jroedel@suse.de>
commit 1ddb32da4a629fa7f87873d0b6836c2e1feb7518 upstream.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- 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 @@ -2799,7 +2799,7 @@ 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;
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