Commit 0e77acef authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Linus Torvalds
Browse files

dma: remove external references to dma_supported 



Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent c56050c7

Documentation/DMA-API.txt

+0 −13
Original line number Diff line number Diff line
@@ -141,19 +141,6 @@ memory back to the pool before you destroy it. 
Part Ic - DMA addressing limitations

------------------------------------



int

dma_supported(struct device *dev, u64 mask)



Checks to see if the device can support DMA to the memory described by

mask.



Returns: 1 if it can and 0 if it can't.



Notes: This routine merely tests to see if the mask is possible.  It

won't change the current mask settings.  It is more intended as an

internal API for use by the platform than an external API for use by

driver writers.



int

dma_set_mask_and_coherent(struct device *dev, u64 mask)

drivers/usb/host/ehci-hcd.c

+1 −1
Original line number Diff line number Diff line
@@ -589,7 +589,7 @@ static int ehci_run (struct usb_hcd *hcd) 
	 * streaming mappings for I/O buffers, like pci_map_single(),

	 * can return segments above 4GB, if the device allows.

	 *

	 * NOTE:  the dma mask is visible through dma_supported(), so

	 * NOTE:  the dma mask is visible through dev->dma_mask, so

	 * drivers can pass this info along ... like NETIF_F_HIGHDMA,

	 * Scsi_Host.highmem_io, and so forth.  It's readonly to all

	 * host side drivers though.

drivers/usb/host/fotg210-hcd.c

+1 −1
Original line number Diff line number Diff line
@@ -5063,7 +5063,7 @@ static int fotg210_run(struct usb_hcd *hcd) 
	 * streaming mappings for I/O buffers, like pci_map_single(),

	 * can return segments above 4GB, if the device allows.

	 *

	 * NOTE:  the dma mask is visible through dma_supported(), so

	 * NOTE:  the dma mask is visible through dev->dma_mask, so

	 * drivers can pass this info along ... like NETIF_F_HIGHDMA,

	 * Scsi_Host.highmem_io, and so forth.  It's readonly to all

	 * host side drivers though.

drivers/usb/host/oxu210hp-hcd.c

+1 −1
Original line number Diff line number Diff line
@@ -2721,7 +2721,7 @@ static int oxu_run(struct usb_hcd *hcd) 
	 * streaming mappings for I/O buffers, like pci_map_single(),

	 * can return segments above 4GB, if the device allows.

	 *

	 * NOTE:  the dma mask is visible through dma_supported(), so

	 * NOTE:  the dma mask is visible through dev->dma_mask, so

	 * drivers can pass this info along ... like NETIF_F_HIGHDMA,

	 * Scsi_Host.highmem_io, and so forth.  It's readonly to all

	 * host side drivers though.

CRA Git | Maintained and supported by SUSTech CRA and CCSE