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linux/drivers/usb/wusbcore
Alan Stern 0ede76fcec USB: remove uses of URB_NO_SETUP_DMA_MAP
This patch (as1350) removes all usages of coherent buffers for USB
control-request setup-packet buffers.  There's no good reason to
reserve coherent memory for these things; control requests are hardly
ever used in large quantity (the major exception is firmware
transfers, and they aren't time-critical).  Furthermore, only seven
drivers used it.  We might as well always use streaming DMA mappings
for setup-packet buffers, and remove some extra complexity from
usbcore.

The DMA-mapping portion of hcd.c is currently in flux.  A separate
patch will be submitted to remove support for URB_NO_SETUP_DMA_MAP
after everything else settles down.  The removal should go smoothly,
as by then nobody will be using it.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-20 13:21:31 -07:00
..
cbaf.c
crypto.c
dev-sysfs.c
devconnect.c
Kconfig
Makefile
mmc.c
pal.c
reservation.c
rh.c
security.c
wa-hc.c
wa-hc.h
wa-nep.c
wa-rpipe.c
wa-xfer.c USB: remove uses of URB_NO_SETUP_DMA_MAP 2010-05-20 13:21:31 -07:00
wusbhc.c
wusbhc.h USB: make hcd.h public (drivers dependency) 2010-05-20 13:21:30 -07:00