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| author | Pete Zaitcev <zaitcev@redhat.com> | 2007-08-14 00:37:51 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-10-12 14:55:14 -0700 |
| commit | cdd5a8fd24f5be43417a25c6feb8e7ebdce63098 (patch) | |
| tree | b17ebeb11b08674a495105946ebdb80d5cb15c24 /drivers/usb/mon/mon_text.c | |
| parent | 30c7431de3631d6a5482a87b7c2453b937e8aa51 (diff) | |
| download | lwn-cdd5a8fd24f5be43417a25c6feb8e7ebdce63098.tar.gz lwn-cdd5a8fd24f5be43417a25c6feb8e7ebdce63098.zip | |
usbmon: Drop DMA mapping for setup packet
Setup packet must be visible in virtual space. There's absolutely no
good reason to implement any kind of zero-copy transfer of 8 bytes, and
the documentation in usb.h is explicit about it. So, drop DMA remapping.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/mon/mon_text.c')
| -rw-r--r-- | drivers/usb/mon/mon_text.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c index a74069c2e82b..663a702a17dd 100644 --- a/drivers/usb/mon/mon_text.c +++ b/drivers/usb/mon/mon_text.c @@ -127,10 +127,6 @@ static inline char mon_text_get_setup(struct mon_event_text *ep, if (ep->xfertype != USB_ENDPOINT_XFER_CONTROL || ev_type != 'S') return '-'; - if (urb->dev->bus->uses_dma && - (urb->transfer_flags & URB_NO_SETUP_DMA_MAP)) { - return mon_dmapeek(ep->setup, urb->setup_dma, SETUP_MAX); - } if (urb->setup_packet == NULL) return 'Z'; /* '0' would be not as pretty. */ |