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authorAlan Stern <stern@rowland.harvard.edu>2005-07-29 16:11:07 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2005-09-08 16:23:04 -0700
commitb375a0495fd622037560c73c05f23ae6f127bb0c (patch)
tree7f800cfd288480625e6e9886b51aa6d159a1548e /drivers/usb/atm/cxacru.c
parenta4e628328ec60873fec9d506d682155391f589ce (diff)
[PATCH] USB: URB_ASYNC_UNLINK flag removed from the kernel
29 July 2005, Cambridge, MA: This afternoon Alan Stern submitted a patch to remove the URB_ASYNC_UNLINK flag from the Linux kernel. Mr. Stern explained, "This flag is a relic from an earlier, less-well-designed system. For over a year it hasn't been used for anything other than printing warning messages." An anonymous spokesman for the Linux kernel development community commented, "This is exactly the sort of thing we see happening all the time. As the kernel evolves, support for old techniques and old code can be jettisoned and replaced by newer, better approaches. Proprietary operating systems do not have the freedom or flexibility to change so quickly." Mr. Stern, a staff member at Harvard University's Rowland Institute who works on Linux only as a hobby, noted that the patch (labelled as548) did not update two files, keyspan.c and option.c, in the USB drivers' "serial" subdirectory. "Those files need more extensive changes," he remarked. "They examine the status field of several URBs at times when they're not supposed to. That will need to be fixed before the URB_ASYNC_UNLINK flag is removed." Greg Kroah-Hartman, the kernel maintainer responsible for overseeing all of Linux's USB drivers, did not respond to our inquiries or return our calls. His only comment was "Applied, thanks." Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/atm/cxacru.c')
-rw-r--r--drivers/usb/atm/cxacru.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index 8e184e2641c..79861ee12a2 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -715,13 +715,11 @@ static int cxacru_bind(struct usbatm_data *usbatm_instance,
usb_dev, usb_rcvintpipe(usb_dev, CXACRU_EP_CMD),
instance->rcv_buf, PAGE_SIZE,
cxacru_blocking_completion, &instance->rcv_done, 1);
- instance->rcv_urb->transfer_flags |= URB_ASYNC_UNLINK;
usb_fill_int_urb(instance->snd_urb,
usb_dev, usb_sndintpipe(usb_dev, CXACRU_EP_CMD),
instance->snd_buf, PAGE_SIZE,
cxacru_blocking_completion, &instance->snd_done, 4);
- instance->snd_urb->transfer_flags |= URB_ASYNC_UNLINK;
init_MUTEX(&instance->cm_serialize);