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| author | Alan Stern <stern@rowland.harvard.edu> | 2009-10-27 15:18:46 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-11 11:55:18 -0800 |
| commit | d697cdda43939a80432863e2e26df6701ce72b63 (patch) | |
| tree | 3ec15d51e6a9f1e92697de95e41b5261f5da098b /drivers/usb/core/usb.h | |
| parent | dccd574cccad950d9ed9bc192eae4089c6044d9d (diff) | |
| download | op-kernel-dev-d697cdda43939a80432863e2e26df6701ce72b63.zip op-kernel-dev-d697cdda43939a80432863e2e26df6701ce72b63.tar.gz | |
USB: don't use a fixed DMA mapping for hub status URBs
This patch (as1296) gets rid of the fixed DMA-buffer mapping used by
the hub driver for its status URB. This URB doesn't get used much --
mainly when a device is plugged in or unplugged -- so the dynamic
mapping overhead is minimal. And most systems have many fewer
external hubs than root hubs, which don't need a mapped buffer anyway.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/usb.h')
0 files changed, 0 insertions, 0 deletions
