netdev - [PATCH 15/15] dma: remove external references to dma

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sat,  3 Oct 2015 17:19:39 +0200
From:	Christoph Hellwig <hch@....de>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Don Fry <pcnet32@...ntier.com>,
	Oliver Neukum <oneukum@...e.com>
Cc:	linux-net-drivers@...arflare.com, dri-devel@...ts.freedesktop.org,
	linux-media@...r.kernel.org, netdev@...r.kernel.org,
	linux-parisc@...r.kernel.org, linux-serial@...r.kernel.org,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 15/15] dma: remove external references to dma_supported

Signed-off-by: Christoph Hellwig <hch@....de>
---
 Documentation/DMA-API.txt       | 13 -------------
 drivers/usb/host/ehci-hcd.c     |  2 +-
 drivers/usb/host/fotg210-hcd.c  |  2 +-
 drivers/usb/host/fusbh200-hcd.c |  2 +-
 drivers/usb/host/oxu210hp-hcd.c |  2 +-
 5 files changed, 4 insertions(+), 17 deletions(-)

diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt
index edccacd..55f48684 100644
--- a/Documentation/DMA-API.txt
+++ b/Documentation/DMA-API.txt
@@ -142,19 +142,6 @@ 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)
 
 Checks to see if the mask is possible and updates the device
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index c63d82c..48c92bf 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -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.
diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
index 000ed80..c5fc3ef 100644
--- a/drivers/usb/host/fotg210-hcd.c
+++ b/drivers/usb/host/fotg210-hcd.c
@@ -5258,7 +5258,7 @@ 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.
diff --git a/drivers/usb/host/fusbh200-hcd.c b/drivers/usb/host/fusbh200-hcd.c
index 1fd8718..4a1243a 100644
--- a/drivers/usb/host/fusbh200-hcd.c
+++ b/drivers/usb/host/fusbh200-hcd.c
@@ -5181,7 +5181,7 @@ static int fusbh200_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.
diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c
index fe3bd1c..1f139d8 100644
--- a/drivers/usb/host/oxu210hp-hcd.c
+++ b/drivers/usb/host/oxu210hp-hcd.c
@@ -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.
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html