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USB: Add a usb_pipe_endpoint() convenience function

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Converting a pipe number to a struct usb_host_endpoint pointer is a little
messy.  Introduce a new convenience function to hide the mess.

Signed-off-by: Matthew Wilcox <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Matthew Wilcox 2010-04-30 13:11:29 -06:00 • committed by Greg Kroah-Hartman
commit fe54b058de
3 changed files with 10 additions and 4 deletions
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3
drivers/usb/core/message.c
View file

@ -226,8 +226,7 @@ int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
struct urb *urb;
struct usb_host_endpoint *ep;
ep = (usb_pipein(pipe) ? usb_dev->ep_in : usb_dev->ep_out)
[usb_pipeendpoint(pipe)];
ep = usb_pipe_endpoint(usb_dev, pipe);
if (!ep || len < 0)
return -EINVAL;

3
drivers/usb/core/urb.c
View file

@ -308,8 +308,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
* will be required to set urb->ep directly and we will eliminate
* urb->pipe.
*/
ep = (usb_pipein(urb->pipe) ? dev->ep_in : dev->ep_out)
[usb_pipeendpoint(urb->pipe)];
ep = usb_pipe_endpoint(dev, urb->pipe);
if (!ep)
return -ENOENT;