| commit | bab1ff1bda27e654dfd382a1fbdfcda1f7ed0a37 | [log] [tgz] |
|---|---|---|
| author | Alan Stern <stern@rowland.harvard.edu> | Wed May 18 10:44:50 2011 +0200 |
| committer | Greg Kroah-Hartman <gregkh@suse.de> | Thu May 19 16:43:19 2011 -0700 |
| tree | 9ff9d83fa7f81eecd5569c0bd9089ea39da3880a | |
| parent | 8452c6745e74384e7e434144f989ada3eae41170 [diff] |
USB: UHCI: Use ACCESS_ONCE rather than using a full compiler barrier This patch (as1462) updates the special accessor functions defined in uhci-hcd.h. Rather than using a full compiler barrier, all we really need is the ACCESS_ONCE() mechanism, because the idea is to force the compiler to store a fixed copy of a possibly changing value. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>