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>

diff --git a/drivers/usb/host/max3421-hcd.c b/drivers/usb/host/max3421-hcd.c
index afa321ab55fcf82bd6d473c06cc0efade3ad486b..8819f502b6a683dfd523bc8de226407a06d77d19 100644 (file)
--- a/drivers/usb/host/max3421-hcd.c
+++ b/drivers/usb/host/max3421-hcd.c
@@ -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,