From: Dr. David Alan Gilbert Date: Sun, 8 Jun 2025 23:56:17 +0000 (+0100) Subject: usb: core: Remove unused usb_unlink_anchored_urbs X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=47c83f95f3e293a9e924a1ba41d782bb059bb954;p=users%2Fjedix%2Flinux-maple.git usb: core: Remove unused usb_unlink_anchored_urbs usb_unlink_anchored_urbs() has been unused since it's last use was removed in 2009 by commit 9b9c5aaeedfd ("ar9170: xmit code revamp") Remove it. Signed-off-by: "Dr. David Alan Gilbert" Acked-by: Randy Dunlap Link: https://lore.kernel.org/r/20250608235617.200731-1-linux@treblig.org Signed-off-by: Greg Kroah-Hartman --- diff --git a/Documentation/driver-api/usb/anchors.rst b/Documentation/driver-api/usb/anchors.rst index 4b248e691bd6..5a93d171e76c 100644 --- a/Documentation/driver-api/usb/anchors.rst +++ b/Documentation/driver-api/usb/anchors.rst @@ -45,17 +45,6 @@ This function kills all URBs associated with an anchor. The URBs are called in the reverse temporal order they were submitted. This way no data can be reordered. -:c:func:`usb_unlink_anchored_urbs` ----------------------------------- - - -This function unlinks all URBs associated with an anchor. The URBs -are processed in the reverse temporal order they were submitted. -This is similar to :c:func:`usb_kill_anchored_urbs`, but it will not sleep. -Therefore no guarantee is made that the URBs have been unlinked when -the call returns. They may be unlinked later but will be unlinked in -finite time. - :c:func:`usb_scuttle_anchored_urbs` ----------------------------------- diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index 5e52a35486af..0e58a8531d6e 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -597,10 +597,9 @@ EXPORT_SYMBOL_GPL(usb_submit_urb); * code). * * Drivers should not call this routine or related routines, such as - * usb_kill_urb() or usb_unlink_anchored_urbs(), after their disconnect - * method has returned. The disconnect function should synchronize with - * a driver's I/O routines to insure that all URB-related activity has - * completed before it returns. + * usb_kill_urb(), after their disconnect method has returned. The + * disconnect function should synchronize with a driver's I/O routines + * to insure that all URB-related activity has completed before it returns. * * This request is asynchronous, however the HCD might call the ->complete() * callback during unlink. Therefore when drivers call usb_unlink_urb(), they @@ -890,28 +889,6 @@ void usb_unpoison_anchored_urbs(struct usb_anchor *anchor) spin_unlock_irqrestore(&anchor->lock, flags); } EXPORT_SYMBOL_GPL(usb_unpoison_anchored_urbs); -/** - * usb_unlink_anchored_urbs - asynchronously cancel transfer requests en masse - * @anchor: anchor the requests are bound to - * - * this allows all outstanding URBs to be unlinked starting - * from the back of the queue. This function is asynchronous. - * The unlinking is just triggered. It may happen after this - * function has returned. - * - * This routine should not be called by a driver after its disconnect - * method has returned. - */ -void usb_unlink_anchored_urbs(struct usb_anchor *anchor) -{ - struct urb *victim; - - while ((victim = usb_get_from_anchor(anchor)) != NULL) { - usb_unlink_urb(victim); - usb_put_urb(victim); - } -} -EXPORT_SYMBOL_GPL(usb_unlink_anchored_urbs); /** * usb_anchor_suspend_wakeups diff --git a/include/linux/usb.h b/include/linux/usb.h index 1b2545b4363b..e8662843e68c 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -1780,7 +1780,6 @@ extern void usb_block_urb(struct urb *urb); extern void usb_kill_anchored_urbs(struct usb_anchor *anchor); extern void usb_poison_anchored_urbs(struct usb_anchor *anchor); extern void usb_unpoison_anchored_urbs(struct usb_anchor *anchor); -extern void usb_unlink_anchored_urbs(struct usb_anchor *anchor); extern void usb_anchor_suspend_wakeups(struct usb_anchor *anchor); extern void usb_anchor_resume_wakeups(struct usb_anchor *anchor); extern void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor);