linux-kernel - [PATCH] iommu/amd: Remove stale amd_iommu_unmap

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Date:   Mon,  2 Aug 2021 17:06:43 +0200
From:   Joerg Roedel <joro@...tes.org>
To:     Joerg Roedel <joro@...tes.org>
Cc:     Suravee Suthikulpanit <suravee.suthikulpanit@....com>,
        Will Deacon <will@...nel.org>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        Joerg Roedel <jroedel@...e.de>, Nadav Amit <namit@...are.com>,
        Zhen Lei <thunder.leizhen@...wei.com>
Subject: [PATCH] iommu/amd: Remove stale amd_iommu_unmap_flush usage

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

Remove the new use of the variable introduced in the AMD driver branch.
The variable was removed already in the iommu core branch, causing build
errors when the brances are merged.

Cc: Nadav Amit <namit@...are.com>
Cc: Zhen Lei <thunder.leizhen@...wei.com>
Signed-off-by: Joerg Roedel <jroedel@...e.de>
---
 drivers/iommu/amd/init.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index 239556c1f698..bdcf167b4afe 100644
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c
@@ -1850,11 +1850,9 @@ static int __init iommu_init_pci(struct amd_iommu *iommu)
 		return ret;
 
 	if (iommu->cap & (1UL << IOMMU_CAP_NPCACHE)) {
-		if (!amd_iommu_unmap_flush)
-			pr_info("IOMMU batching is disabled due to virtualization\n");
-
+		pr_info("Using strict mode due to virtualization\n");
+		iommu_set_dma_strict();
 		amd_iommu_np_cache = true;
-		amd_iommu_unmap_flush = true;
 	}
 
 	init_iommu_perf_ctr(iommu);
-- 
2.31.1