[PATCH kernel] powerpc/powernv: Fix it_ops::get() callback to return in cpu endian

[Alexey Kardashevskiy]

The iommu_table_ops callbacks are declared CPU endian as they take and
return "unsigned long"; underlying hardware tables are big-endian.

However get() was missing be64_to_cpu(), this adds the missing conversion.

The only caller of this is crash dump at arch/powerpc/kernel/iommu.c,
iommu_table_clear() which only compares TCE to zero so this change
should not cause behavioral change.

Signed-off-by: Alexey Kardashevskiy <aik at ozlabs.ru>
---
 arch/powerpc/platforms/powernv/pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index c6d554fe585c..3f7f267a3d04 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -758,7 +758,7 @@ void pnv_tce_free(struct iommu_table *tbl, long index, long npages)
 
 unsigned long pnv_tce_get(struct iommu_table *tbl, long index)
 {
-	return *(pnv_tce(tbl, index - tbl->it_offset));
+	return be64_to_cpu(*(pnv_tce(tbl, index - tbl->it_offset)));
 }
 
 struct iommu_table *pnv_pci_table_alloc(int nid)
-- 
2.11.0