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authorJean-Philippe Brucker <jean-philippe.brucker@arm.com>2018-06-18 12:27:54 +0100
committerWill Deacon <will.deacon@arm.com>2018-07-26 11:34:58 +0100
commitfac83d29d95471ad6a104f8c0d21669a3d59097b (patch)
tree0657ce23344c0a5be2ca6cb9b45be0b99f6e7043 /drivers/iommu/io-pgtable-arm.c
parentLinux 4.18-rc1 (diff)
downloadlinux-dev-fac83d29d95471ad6a104f8c0d21669a3d59097b.tar.xz
linux-dev-fac83d29d95471ad6a104f8c0d21669a3d59097b.zip
iommu/io-pgtable-arm: Fix pgtable allocation in selftest
Commit 4b123757eeaa ("iommu/io-pgtable-arm: Make allocations NUMA-aware") added a NUMA hint to page table allocation, but the pgtable selftest doesn't provide an SMMU device parameter. Since dev_to_node doesn't accept a NULL argument, add a special case for selftest. Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'drivers/iommu/io-pgtable-arm.c')
-rw-r--r--drivers/iommu/io-pgtable-arm.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c
index 010a254305dd..88641b4560bc 100644
--- a/drivers/iommu/io-pgtable-arm.c
+++ b/drivers/iommu/io-pgtable-arm.c
@@ -237,7 +237,8 @@ static void *__arm_lpae_alloc_pages(size_t size, gfp_t gfp,
void *pages;
VM_BUG_ON((gfp & __GFP_HIGHMEM));
- p = alloc_pages_node(dev_to_node(dev), gfp | __GFP_ZERO, order);
+ p = alloc_pages_node(dev ? dev_to_node(dev) : NUMA_NO_NODE,
+ gfp | __GFP_ZERO, order);
if (!p)
return NULL;