From e6fa0dc86734f99b037b36b8682133efc2b6e16b Mon Sep 17 00:00:00 2001 From: Souptick Joarder Date: Mon, 2 Sep 2019 14:09:58 +0530 Subject: [PATCH] swiotlb-xen: Convert to use macro Rather than using static int max_dma_bits, this can be coverted to use as macro. Signed-off-by: Souptick Joarder Reviewed-by: Juergen Gross Signed-off-by: Boris Ostrovsky --- drivers/xen/swiotlb-xen.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index ae1df496bf38..d1eced53bdda 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -38,6 +38,7 @@ #include #include +#define MAX_DMA_BITS 32 /* * Used to do a quick range check in swiotlb_tbl_unmap_single and * swiotlb_tbl_sync_single_*, to see if the memory was in fact allocated by this @@ -114,8 +115,6 @@ static int is_xen_swiotlb_buffer(dma_addr_t dma_addr) return 0; } -static int max_dma_bits = 32; - static int xen_swiotlb_fixup(void *buf, size_t size, unsigned long nslabs) { @@ -135,7 +134,7 @@ xen_swiotlb_fixup(void *buf, size_t size, unsigned long nslabs) p + (i << IO_TLB_SHIFT), get_order(slabs << IO_TLB_SHIFT), dma_bits, &dma_handle); - } while (rc && dma_bits++ < max_dma_bits); + } while (rc && dma_bits++ < MAX_DMA_BITS); if (rc) return rc;