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usb/max3421: remove the dummy {un,}map_urb_for_dma methods 

Now that we have an explicit HCD_DMA flag, there is not need to override
these methods.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20190816062435.881-5-hch@lst.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christoph Hellwig 2019-08-16 08:24:33 +02:00 committed by Greg Kroah-Hartman
parent 7b81cb6bdd
commit 5d6ff300f0
1 changed files with 0 additions and 17 deletions
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17
drivers/usb/host/max3421-hcd.c
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@ -1800,21 +1800,6 @@ max3421_bus_resume(struct usb_hcd *hcd)
return -1;
}
/*
* The SPI driver already takes care of DMA-mapping/unmapping, so no
* reason to do it twice.
*/
static int
max3421_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags)
{
return 0;
}
static void
max3421_unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb)
{
}
static const struct hc_driver max3421_hcd_desc = {
.description = "max3421",
.product_desc = DRIVER_DESC,
@ -1826,8 +1811,6 @@ static const struct hc_driver max3421_hcd_desc = {
.get_frame_number = max3421_get_frame_number,
.urb_enqueue = max3421_urb_enqueue,
.urb_dequeue = max3421_urb_dequeue,
.map_urb_for_dma = max3421_map_urb_for_dma,
.unmap_urb_for_dma = max3421_unmap_urb_for_dma,
.endpoint_disable = max3421_endpoint_disable,
.hub_status_data = max3421_hub_status_data,
.hub_control = max3421_hub_control,