sfc: don't call dma_supported

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>

diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 6e11ee6..d288f1c 100644 (file)
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -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) {