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sfc: don't call dma_supported

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dma_set_mask already checks for a supported DMA mask before updating it,
the call to dma_supported is redundant.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Solarflare linux maintainers <linux-net-drivers@solarflare.com>
Cc: Shradha Shah <sshah@solarflare.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Hellwig 2015-11-10 14:45:42 -08:00 committed by Linus Torvalds
parent 0dcc4a59d5
commit 8722b8fbce
1 changed files with 3 additions and 5 deletions
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8
drivers/net/ethernet/sfc/efx.c
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@ -1247,11 +1247,9 @@ static int efx_init_io(struct efx_nic *efx)
* masks event though they reject 46 bit masks.
*/
while (dma_mask > 0x7fffffffUL) {
if (dma_supported(&pci_dev->dev, dma_mask)) {
rc = dma_set_mask_and_coherent(&pci_dev->dev, dma_mask);
if (rc == 0)
break;
}
rc = dma_set_mask_and_coherent(&pci_dev->dev, dma_mask);
if (rc == 0)
break;
dma_mask >>= 1;
}
if (rc) {