linux-kernel - [PATCH v2 11/18] usb: xhci-mtk: use @tt_info to check the FS/LS device is under a HS hub

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Date:   Mon, 8 Mar 2021 10:52:00 +0800
From:   Chunfeng Yun <chunfeng.yun@...iatek.com>
To:     Mathias Nyman <mathias.nyman@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ikjoon Jang <ikjn@...omium.org>
CC:     Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        <linux-usb@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Nicolas Boichat <drinkcat@...omium.org>,
        Eddie Hung <eddie.hung@...iatek.com>,
        Sergei Shtylyov <sergei.shtylyov@...il.com>,
        Alan Stern <stern@...land.harvard.edu>
Subject: [PATCH v2 11/18] usb: xhci-mtk: use @tt_info to check the FS/LS device is under a HS hub

If the LS/FS device is connected to an external HS hub, the member
@tt_info in xhci_virt_device struct in not NULL, use it to check
whether a LS/FS device is under an exernal HS hub, then no need get
the slot context of this device.

Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
---
v2: no changes
---
 drivers/usb/host/xhci-mtk-sch.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/host/xhci-mtk-sch.c b/drivers/usb/host/xhci-mtk-sch.c
index 3dc727b820aa..bad99580fb68 100644
--- a/drivers/usb/host/xhci-mtk-sch.c
+++ b/drivers/usb/host/xhci-mtk-sch.c
@@ -678,7 +678,6 @@ int xhci_mtk_add_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
 	struct xhci_hcd_mtk *mtk = hcd_to_mtk(hcd);
 	struct xhci_hcd *xhci;
 	struct xhci_ep_ctx *ep_ctx;
-	struct xhci_slot_ctx *slot_ctx;
 	struct xhci_virt_device *virt_dev;
 	struct mu3h_sch_ep_info *sch_ep;
 	unsigned int ep_index;
@@ -686,7 +685,6 @@ int xhci_mtk_add_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
 	xhci = hcd_to_xhci(hcd);
 	virt_dev = xhci->devs[udev->slot_id];
 	ep_index = xhci_get_endpoint_index(&ep->desc);
-	slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->in_ctx);
 	ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->in_ctx, ep_index);
 
 	xhci_dbg(xhci, "%s() type:%d, speed:%d, mpkt:%d, dir:%d, ep:%p\n",
@@ -694,7 +692,7 @@ int xhci_mtk_add_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
 		usb_endpoint_maxp(&ep->desc),
 		usb_endpoint_dir_in(&ep->desc), ep);
 
-	if (!need_bw_sch(ep, udev->speed, slot_ctx->tt_info & TT_SLOT)) {
+	if (!need_bw_sch(ep, udev->speed, !!virt_dev->tt_info)) {
 		/*
 		 * set @bpkts to 1 if it is LS or FS periodic endpoint, and its
 		 * device does not connected through an external HS hub
@@ -723,7 +721,6 @@ void xhci_mtk_drop_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
 {
 	struct xhci_hcd_mtk *mtk = hcd_to_mtk(hcd);
 	struct xhci_hcd *xhci;
-	struct xhci_slot_ctx *slot_ctx;
 	struct xhci_virt_device *virt_dev;
 	struct mu3h_sch_bw_info *sch_array;
 	struct mu3h_sch_bw_info *sch_bw;
@@ -732,7 +729,6 @@ void xhci_mtk_drop_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
 
 	xhci = hcd_to_xhci(hcd);
 	virt_dev = xhci->devs[udev->slot_id];
-	slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->in_ctx);
 	sch_array = mtk->sch_array;
 
 	xhci_dbg(xhci, "%s() type:%d, speed:%d, mpks:%d, dir:%d, ep:%p\n",
@@ -740,7 +736,7 @@ void xhci_mtk_drop_ep_quirk(struct usb_hcd *hcd, struct usb_device *udev,
 		usb_endpoint_maxp(&ep->desc),
 		usb_endpoint_dir_in(&ep->desc), ep);
 
-	if (!need_bw_sch(ep, udev->speed, slot_ctx->tt_info & TT_SLOT))
+	if (!need_bw_sch(ep, udev->speed, !!virt_dev->tt_info))
 		return;
 
 	bw_index = get_bw_index(xhci, udev, ep);
-- 
2.18.0