diff options
| author | Justin Waters <justin.waters@timesys.com> | 2008-02-26 13:07:02 -0500 |
|---|---|---|
| committer | Justin Waters <justin.waters@timesys.com> | 2008-02-26 13:07:02 -0500 |
| commit | b80a32b9cc634adfa8eaef33ec981e7febf2ade2 (patch) | |
| tree | f256bce13ba11f514a388160df84e1410bedbe2b /drivers/usb/core/usb.c | |
| parent | 594133ef22fae0d737bd1b57352cf3f48a192c63 (diff) | |
Update the i.MX31 Kernel to 2.6.232.6.23-mx31ads-2008022618072.6.23-mx31-200802261807
This is the result of a brute-force attempt to update the kernel to 2.6.23.
Now that we have a git tree, our effort will be a little nicer in the future.
Signed-off-by: Justin Waters <justin.waters@timesys.com>
Diffstat (limited to 'drivers/usb/core/usb.c')
| -rw-r--r-- | drivers/usb/core/usb.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index 12918839c2f1..137f930dea58 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -253,6 +253,7 @@ usb_alloc_dev(struct usb_device *parent, struct usb_bus *bus, unsigned port1) dev->dev.bus = &usb_bus_type; dev->dev.type = &usb_device_type; dev->dev.dma_mask = bus->controller->dma_mask; + set_dev_node(&dev->dev, dev_to_node(bus->controller)); dev->state = USB_STATE_ATTACHED; INIT_LIST_HEAD(&dev->ep0.urb_list); @@ -578,11 +579,12 @@ int __usb_get_extra_descriptor(char *buffer, unsigned size, * address (through the pointer provided). * * These buffers are used with URB_NO_xxx_DMA_MAP set in urb->transfer_flags - * to avoid behaviors like using "DMA bounce buffers", or tying down I/O - * mapping hardware for long idle periods. The implementation varies between + * to avoid behaviors like using "DMA bounce buffers", or thrashing IOMMU + * hardware during URB completion/resubmit. The implementation varies between * platforms, depending on details of how DMA will work to this device. - * Using these buffers also helps prevent cacheline sharing problems on - * architectures where CPU caches are not DMA-coherent. + * Using these buffers also eliminates cacheline sharing problems on + * architectures where CPU caches are not DMA-coherent. On systems without + * bus-snooping caches, these buffers are uncached. * * When the buffer is no longer used, free it with usb_buffer_free(). */ @@ -607,7 +609,7 @@ void *usb_buffer_alloc( * * This reclaims an I/O buffer, letting it be reused. The memory must have * been allocated using usb_buffer_alloc(), and the parameters must match - * those provided in that allocation request. + * those provided in that allocation request. */ void usb_buffer_free( struct usb_device *dev, |