ARM: 7166/1: Use PMD_SHIFT instead of PGDIR_SHIFT in dma-consistent.c

Commit 99d1717 (ARM: Add init_consistent_dma_size()) introduces dynamic allocation of the consistent_pte array. The number of PTEs should be calculated based on the number of PMD entries rather than PGD, hence the PMD_SHIFT. Signed-off-by: Catalin Marinas <[email protected]> Cc: Jon Medhurst <[email protected]> Acked-by: Nicolas Pitre <[email protected]> Signed-off-by: Russell King <[email protected]>
Findingmyway · Nov 21, 2011 · 53cbcbc · 53cbcbc
1 parent 1c8a7c1
commit 53cbcbc
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
@@ -168,7 +168,7 @@ static int __init consistent_init(void)
 	pte_t *pte;
 	int i = 0;
 	unsigned long base = consistent_base;
-	unsigned long num_ptes = (CONSISTENT_END - base) >> PGDIR_SHIFT;
+	unsigned long num_ptes = (CONSISTENT_END - base) >> PMD_SHIFT;
 
 	consistent_pte = kmalloc(num_ptes * sizeof(pte_t), GFP_KERNEL);
 	if (!consistent_pte) {