diff options
Diffstat (limited to 'drivers/net/wireless')
| -rw-r--r-- | drivers/net/wireless/broadcom/b43legacy/dma.c | 39 |
1 files changed, 1 insertions, 38 deletions
diff --git a/drivers/net/wireless/broadcom/b43legacy/dma.c b/drivers/net/wireless/broadcom/b43legacy/dma.c index 1cc25f44dd9a..dcbc4aa2ad49 100644 --- a/drivers/net/wireless/broadcom/b43legacy/dma.c +++ b/drivers/net/wireless/broadcom/b43legacy/dma.c @@ -784,43 +784,6 @@ void b43legacy_dma_free(struct b43legacy_wldev *dev) dma->tx_ring0 = NULL; } -static int b43legacy_dma_set_mask(struct b43legacy_wldev *dev, u64 mask) -{ - u64 orig_mask = mask; - bool fallback = false; - int err; - - /* Try to set the DMA mask. If it fails, try falling back to a - * lower mask, as we can always also support a lower one. */ - while (1) { - err = dma_set_mask_and_coherent(dev->dev->dma_dev, mask); - if (!err) - break; - if (mask == DMA_BIT_MASK(64)) { - mask = DMA_BIT_MASK(32); - fallback = true; - continue; - } - if (mask == DMA_BIT_MASK(32)) { - mask = DMA_BIT_MASK(30); - fallback = true; - continue; - } - b43legacyerr(dev->wl, "The machine/kernel does not support " - "the required %u-bit DMA mask\n", - (unsigned int)dma_mask_to_engine_type(orig_mask)); - return -EOPNOTSUPP; - } - if (fallback) { - b43legacyinfo(dev->wl, "DMA mask fallback from %u-bit to %u-" - "bit\n", - (unsigned int)dma_mask_to_engine_type(orig_mask), - (unsigned int)dma_mask_to_engine_type(mask)); - } - - return 0; -} - int b43legacy_dma_init(struct b43legacy_wldev *dev) { struct b43legacy_dma *dma = &dev->dma; @@ -831,7 +794,7 @@ int b43legacy_dma_init(struct b43legacy_wldev *dev) dmamask = supported_dma_mask(dev); type = dma_mask_to_engine_type(dmamask); - err = b43legacy_dma_set_mask(dev, dmamask); + err = dma_set_mask_and_coherent(dev->dev->dma_dev, dmamask); if (err) { #ifdef CONFIG_B43LEGACY_PIO b43legacywarn(dev->wl, "DMA for this device not supported. " |