https://bugzilla.novell.com/show_bug.cgi?id=332832#c1
Jeff Mahoney changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |oneukum@novell.com
AssignedTo|kernel-maintainers@forge.provo.novell.com |gregkh@novell.com
--- Comment #1 from Jeff Mahoney 2007-10-17 14:55:55 MST ---
Greg, Oliver, care to look here? The only differences I see in the Ubuntu
kernel's ehci_hcd implementation is this, which looks to be a part of the patch
found here: http://kerneltrap.org/mailarchive/linux-kernel/2007/10/9/333360
diff -ruNp linux-2.6.22-SL103_BRANCH/drivers/usb/host/ehci-hcd.c
linux-2.6.22.ubuntu/drivers/usb/host/ehci-hcd.c
--- linux-2.6.22-SL103_BRANCH/drivers/usb/host/ehci-hcd.c 2007-10-17
16:48:23.000000000 -0400
+++ linux-2.6.22.ubuntu/drivers/usb/host/ehci-hcd.c 2007-10-17
16:47:55.000000000 -0400
@@ -563,9 +567,11 @@ static int ehci_run (struct usb_hcd *hcd
* involved with the root hub. (Except where one is integrated,
* and there's no companion controller unless maybe for USB OTG.)
*/
+ down_write(&ehci_cf_port_reset_rwsem);
hcd->state = HC_STATE_RUNNING;
ehci_writel(ehci, FLAG_CF, &ehci->regs->configured_flag);
ehci_readl(ehci, &ehci->regs->command); /* unblock posted writes */
+ up_write(&ehci_cf_port_reset_rwsem);
temp = HC_VERSION(ehci_readl(ehci, &ehci->caps->hc_capbase));
ehci_info (ehci,
Other changes are related to the PS3, and I think the Ubuntu kernel just has
slightly older versions.
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