Commit ac9ae510 authored by YueHaibing's avatar YueHaibing Committed by Greg Kroah-Hartman
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usb: host: ehci-sched: Remove ununsed function tt_start_uframe() 



commit b35c5009 ("USB: EHCI: create per-TT bandwidth tables")
left behind this, remove it.

Acked-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: default avatarYueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20200909134405.34036-1-yuehaibing@huawei.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c4005a8f

drivers/usb/host/ehci-sched.c

+0 −20
Original line number Diff line number Diff line
@@ -307,26 +307,6 @@ static int __maybe_unused same_tt(struct usb_device *dev1, 


#ifdef CONFIG_USB_EHCI_TT_NEWSCHED



/* Which uframe does the low/fullspeed transfer start in?

 *

 * The parameter is the mask of ssplits in "H-frame" terms

 * and this returns the transfer start uframe in "B-frame" terms,

 * which allows both to match, e.g. a ssplit in "H-frame" uframe 0

 * will cause a transfer in "B-frame" uframe 0.  "B-frames" lag

 * "H-frames" by 1 uframe.  See the EHCI spec sec 4.5 and figure 4.7.

 */

static inline unsigned char tt_start_uframe(struct ehci_hcd *ehci, __hc32 mask)

{

	unsigned char smask = hc32_to_cpu(ehci, mask) & QH_SMASK;



	if (!smask) {

		ehci_err(ehci, "invalid empty smask!\n");

		/* uframe 7 can't have bw so this will indicate failure */

		return 7;

	}

	return ffs(smask) - 1;

}



static const unsigned char

max_tt_usecs[] = { 125, 125, 125, 125, 125, 125, 30, 0 };