linux-kernel - [PATCH 7/7] iommu/amd: Remove amd_iommu_disabled check from amd_iommu

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Date:   Fri, 16 Jun 2017 16:10:00 +0200
From:   Joerg Roedel <joro@...tes.org>
To:     iommu@...ts.linux-foundation.org
Cc:     linux-kernel@...r.kernel.org, Joerg Roedel <jroedel@...e.de>
Subject: [PATCH 7/7] iommu/amd: Remove amd_iommu_disabled check from amd_iommu_detect()

From: Joerg Roedel <jroedel@...e.de>

This check needs to happens later now, when all previously
enabled IOMMUs have been disabled.

Signed-off-by: Joerg Roedel <jroedel@...e.de>
---
 drivers/iommu/amd_iommu_init.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index eedd3d3..bc9dfcf 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -2576,9 +2576,6 @@ int __init amd_iommu_detect(void)
 	if (no_iommu || (iommu_detected && !gart_iommu_aperture))
 		return -ENODEV;
 
-	if (amd_iommu_disabled)
-		return -ENODEV;
-
 	ret = iommu_go_to_state(IOMMU_IVRS_DETECTED);
 	if (ret)
 		return ret;
-- 
2.7.4