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s390/pci_dma: remove memset from dma_alloc

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Get rid of a useless memset from dma_alloc. Users of dma_alloc who want
zero initialized memory can get it by specifying __GFP_ZERO or use one
of the zalloc variants.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Sebastian Ott 2016-09-08 13:37:09 +02:00 committed by Martin Schwidefsky
parent 4f5359e94b
commit a95aeb2ff4
1 changed files with 0 additions and 2 deletions
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arch/s390/pci/pci_dma.c
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@ -391,8 +391,6 @@ static void *s390_dma_alloc(struct device *dev, size_t size,
return NULL; return NULL;
pa = page_to_phys(page); pa = page_to_phys(page);
memset((void *) pa, 0, size);
map = s390_dma_map_pages(dev, page, 0, size, DMA_BIDIRECTIONAL, 0); map = s390_dma_map_pages(dev, page, 0, size, DMA_BIDIRECTIONAL, 0);
if (dma_mapping_error(dev, map)) { if (dma_mapping_error(dev, map)) {
free_pages(pa, get_order(size)); free_pages(pa, get_order(size));