From 8b47e324af717ea0dbde257b0a84042982746404 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <jroedel@suse.de>
Date: Fri, 18 Oct 2019 11:00:33 +0200
Subject: [PATCH] iommu/amd: Pass gfp flags to iommu_map_page() in
amd_iommu_map()
commit 3057fb9377eb5e73386dd0d8804bf72bdd23e391 upstream.
A recent commit added a gfp parameter to amd_iommu_map() to make it
callable from atomic context, but forgot to pass it down to
iommu_map_page() and left GFP_KERNEL there. This caused
sleep-while-atomic warnings and needs to be fixed.
Reported-by: Qian Cai <cai@lca.pw>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 781ca2de89ba ("iommu: Add gfp parameter to iommu_ops::map")
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/iommu/amd_iommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 5e269f3dca3dd..b79309928d786 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -3114,7 +3114,7 @@ static int amd_iommu_map(struct iommu_domain *dom, unsigned long iova,
prot |= IOMMU_PROT_IW;
mutex_lock(&domain->api_lock);
- ret = iommu_map_page(domain, iova, paddr, page_size, prot, GFP_KERNEL);
+ ret = iommu_map_page(domain, iova, paddr, page_size, prot, gfp);
mutex_unlock(&domain->api_lock);
domain_flush_np_cache(domain, iova, page_size);