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hyperv/busdma: Take BUS_DMA_ZERO into account

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MFC after:	1 week
Sponsored by:	Microsoft OSTC
Differential Revision:	https://reviews.freebsd.org/D6499
This commit is contained in:
Sepherosa Ziehau 2016-05-24 05:26:52 +00:00
parent 86931e66f6
commit d8313c45a6
1 changed files with 2 additions and 2 deletions
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4
sys/dev/hyperv/vmbus/hyperv_busdma.c
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@ -35,7 +35,7 @@ __FBSDID("$FreeBSD$");
#include <dev/hyperv/include/hyperv_busdma.h>
#define HYPERV_DMA_WAITMASK (BUS_DMA_WAITOK | BUS_DMA_NOWAIT)
#define HYPERV_DMA_MASK (BUS_DMA_WAITOK | BUS_DMA_NOWAIT | BUS_DMA_ZERO)
void
hyperv_dma_map_paddr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
@ -73,7 +73,7 @@ hyperv_dmamem_alloc(bus_dma_tag_t parent_dtag, bus_size_t alignment,
return NULL;
error = bus_dmamem_alloc(dma->hv_dtag, &ret,
(flags & HYPERV_DMA_WAITMASK) | BUS_DMA_COHERENT, &dma->hv_dmap);
(flags & HYPERV_DMA_MASK) | BUS_DMA_COHERENT, &dma->hv_dmap);
if (error) {
bus_dma_tag_destroy(dma->hv_dtag);
return NULL;