From: Jean-Philippe Brucker jean-philippe.brucker@arm.com
[ Upstream commit fac83d29d95471ad6a104f8c0d21669a3d59097b ]
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 Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- drivers/iommu/io-pgtable-arm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
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;