Merge branch 'topic/cs423x-merge' into for-linus

[sfrench/cifs-2.6.git] / Documentation / usb / dma.txt

diff --git a/Documentation/usb/dma.txt b/Documentation/usb/dma.txt
index e8b50b7de9d943d3efd3da6e55ebc12ce533f230..cfdcd16e3abf136b8f291da8372ceff5105fa294 100644 (file)
--- a/Documentation/usb/dma.txt
+++ b/Documentation/usb/dma.txt
@@ -6,8 +6,9 @@ in the kernel usb programming guide (kerneldoc, from the source code).
 API OVERVIEW
 
 The big picture is that USB drivers can continue to ignore most DMA issues,
-though they still must provide DMA-ready buffers (see DMA-mapping.txt).
-That's how they've worked through the 2.4 (and earlier) kernels.
+though they still must provide DMA-ready buffers (see
+Documentation/PCI/PCI-DMA-mapping.txt).  That's how they've worked through
+the 2.4 (and earlier) kernels.
 
 OR:  they can now be DMA-aware.
 
@@ -62,8 +63,8 @@ and effects like cache-trashing can impose subtle penalties.
   force a consistent memory access ordering by using memory barriers.  It's
   not using a streaming DMA mapping, so it's good for small transfers on
   systems where the I/O would otherwise thrash an IOMMU mapping.  (See
-  Documentation/DMA-mapping.txt for definitions of "coherent" and "streaming"
-  DMA mappings.)
+  Documentation/PCI/PCI-DMA-mapping.txt for definitions of "coherent" and
+  "streaming" DMA mappings.)
 
   Asking for 1/Nth of a page (as well as asking for N pages) is reasonably
   space-efficient.
@@ -93,7 +94,7 @@ WORKING WITH EXISTING BUFFERS
 Existing buffers aren't usable for DMA without first being mapped into the
 DMA address space of the device.  However, most buffers passed to your
 driver can safely be used with such DMA mapping.  (See the first section
-of DMA-mapping.txt, titled "What memory is DMA-able?")
+of Documentation/PCI/PCI-DMA-mapping.txt, titled "What memory is DMA-able?")
 
 - When you're using scatterlists, you can map everything at once.  On some
   systems, this kicks in an IOMMU and turns the scatterlists into single