Messages in this thread | | | Date | Wed, 21 May 2008 15:29:18 +0100 | From | David Vrabel <> | Subject | Re: [PATCH] USB: fix deadlock in HCD code |
| |
Alan Stern wrote: > > The functions you are worried about (usb_hcd_link_urb_to_ep and > usb_hcd_unlink_urb_from_ep) are documented as requiring that interrupts > be disabled by their callers. This patch isn't needed.
This requirement is the only reason the whci-hcd driver disables interrupts. Removing this requirement would reduce the time that interrupts are disabled in the whci-hcd driver.
David -- David Vrabel, Senior Software Engineer, Drivers CSR, Churchill House, Cambridge Business Park, Tel: +44 (0)1223 692562 Cowley Road, Cambridge, CB4 0WZ http://www.csr.com/
| |