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From: Christoph Hellwig <hch@lst.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Maxime Chevallier <maxime.chevallier@bootlin.com>
Cc: Gavin Li <git@thegavinli.com>,
	Laurentiu Tudor <laurentiu.tudor@nxp.com>,
	Minas Harutyunyan <hminas@synopsys.com>,
	Alan Stern <stern@rowland.harvard.edu>,
	Geoff Levand <geoff@infradead.org>,
	Michal Simek <michal.simek@xilinx.com>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	Mathias Nyman <mathias.nyman@intel.com>, Bin Liu <b-liu@ti.com>,
	linux-arm-kernel@lists.infradead.org, linux-usb@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org, linux-m68k@lists.linux-m68k.org,
	iommu@lists.linux-foundation.org, linux-arch@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH 4/6] usb/max3421: remove the dummy {un,}map_urb_for_dma methods
Date: Fri, 16 Aug 2019 08:24:33 +0200
Message-ID: <20190816062435.881-5-hch@lst.de> (raw)
In-Reply-To: <20190816062435.881-1-hch@lst.de>

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>
---
 drivers/usb/host/max3421-hcd.c | 17 -----------------
 1 file changed, 17 deletions(-)

diff --git a/drivers/usb/host/max3421-hcd.c b/drivers/usb/host/max3421-hcd.c
index afa321ab55fc..8819f502b6a6 100644
--- 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,
-- 
2.20.1


  parent reply index

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-16  6:24 next take at setting up a dma mask by default for platform devices v2 Christoph Hellwig
2019-08-16  6:24 ` [PATCH 1/6] usb: don't create dma pools for HCDs with a localmem_pool Christoph Hellwig
2019-08-16  6:24 ` [PATCH 2/6] usb: add a hcd_uses_dma helper Christoph Hellwig
2019-08-16  6:24 ` [PATCH 3/6] usb: add a HCD_DMA flag instead of guestimating DMA capabilities Christoph Hellwig
2019-08-16  6:24 ` Christoph Hellwig [this message]
2019-08-16  6:24 ` [PATCH 5/6] dma-mapping: remove is_device_dma_capable Christoph Hellwig
2019-08-16  6:24 ` [PATCH 6/6] driver core: initialize a default DMA mask for platform device Christoph Hellwig
2019-08-16  7:39   ` Geert Uytterhoeven
  -- strict thread matches above, loose matches on Subject: below --
2019-08-11  8:05 next take at setting up a dma mask by default for platform devices Christoph Hellwig
2019-08-11  8:05 ` [PATCH 4/6] usb/max3421: remove the dummy {un,}map_urb_for_dma methods Christoph Hellwig

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