From patchwork Wed Sep 9 13:44:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yue Haibing X-Patchwork-Id: 11765849 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4B2A859D for ; Wed, 9 Sep 2020 17:03:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3BD3B2166E for ; Wed, 9 Sep 2020 17:03:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730521AbgIIRDf (ORCPT ); Wed, 9 Sep 2020 13:03:35 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:11760 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1730429AbgIIPqd (ORCPT ); Wed, 9 Sep 2020 11:46:33 -0400 Received: from DGGEMS412-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id F39D713A618DF6ED4B13; Wed, 9 Sep 2020 21:44:13 +0800 (CST) Received: from localhost (10.174.179.108) by DGGEMS412-HUB.china.huawei.com (10.3.19.212) with Microsoft SMTP Server id 14.3.487.0; Wed, 9 Sep 2020 21:44:07 +0800 From: YueHaibing To: , , , CC: , Subject: [PATCH -next] usb: host: ehci-sched: Remove ununsed function tt_start_uframe() Date: Wed, 9 Sep 2020 21:44:05 +0800 Message-ID: <20200909134405.34036-1-yuehaibing@huawei.com> X-Mailer: git-send-email 2.10.2.windows.1 MIME-Version: 1.0 X-Originating-IP: [10.174.179.108] X-CFilter-Loop: Reflected Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org commit b35c5009bbf6 ("USB: EHCI: create per-TT bandwidth tables") left behind this, remove it. Signed-off-by: YueHaibing Acked-by: Alan Stern --- drivers/usb/host/ehci-sched.c | 20 -------------------- 1 file changed, 20 deletions(-) diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index 847979f265b1..6dfb242f9a4b 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -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 };