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path: root/drivers/usb/core/usb.c
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Diffstat (limited to 'drivers/usb/core/usb.c')
-rw-r--r--drivers/usb/core/usb.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index bafc113f2b3e..9b4ac4415f1a 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -599,18 +599,6 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent,
dev->dev.bus = &usb_bus_type;
dev->dev.type = &usb_device_type;
dev->dev.groups = usb_device_groups;
- /*
- * Fake a dma_mask/offset for the USB device:
- * We cannot really use the dma-mapping API (dma_alloc_* and
- * dma_map_*) for USB devices but instead need to use
- * usb_alloc_coherent and pass data in 'urb's, but some subsystems
- * manually look into the mask/offset pair to determine whether
- * they need bounce buffers.
- * Note: calling dma_set_mask() on a USB device would set the
- * mask for the entire HCD, so don't do that.
- */
- dev->dev.dma_mask = bus->sysdev->dma_mask;
- dev->dev.dma_pfn_offset = bus->sysdev->dma_pfn_offset;
set_dev_node(&dev->dev, dev_to_node(bus->sysdev));
dev->state = USB_STATE_ATTACHED;
dev->lpm_disable_count = 1;