| commit | b7116ebca4e1a898f30ae474151fd6474327257c | [log] [tgz] |
|---|---|---|
| author | Sarah Sharp <sarah.a.sharp@linux.intel.com> | Wed Apr 29 19:05:58 2009 -0700 |
| committer | Greg Kroah-Hartman <gregkh@suse.de> | Mon Jun 15 21:44:50 2009 -0700 |
| tree | c450c38cfc8464613e08cd3903f4b5d730b75549 | |
| parent | c96a2b81f3747e6924307714666aa2368bc1718b [diff] |
USB: xhci: Avoid compiler reordering in Link TRB giveback. Force the compiler to write the cycle bit of the Link TRB last. This ensures that the hardware doesn't think it owns the Link TRB before we set the chain bit. Reported by Oliver in this thread: http://marc.info/?l=linux-usb&m=124091532410219&w=2 Reported-by: Oliver Neukum <oliver@neukum.org> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>