Merge tag 'iommu-fixes-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-block.git] / drivers / xen / swiotlb-xen.c

diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 58c9365fa217654cb3863ff3cf05e0d6f565c6be..bd3a10dfac157e4726ec5c46e380a4966b5587d5 100644 (file)
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -39,6 +39,7 @@
 #include <asm/xen/page-coherent.h>
 
 #include <trace/events/swiotlb.h>
+#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
@@ -115,8 +116,6 @@ 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)
 {
@@ -136,7 +135,7 @@ 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;