usb: xhci-mtk: remove unnecessary members of mu3h_sch_tt struct

The members @usb_tt and @tt_port in mu3h_sch_tt struct
are not used after initialization, so can be removed

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/9afecc2411895a3c76658df26ebca1c961a39fbb.1615170625.git.chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/xhci-mtk-sch.c b/drivers/usb/host/xhci-mtk-sch.c
index 8fe4481eb43d8d8e4fc122ded45f2179f13a7a58..6fb7a040c73c507cb6212d4e619dbe9dc7c34aa6 100644 (file)
--- a/drivers/usb/host/xhci-mtk-sch.c
+++ b/drivers/usb/host/xhci-mtk-sch.c
@@ -104,7 +104,6 @@ static struct mu3h_sch_tt *find_tt(struct usb_device *udev)
 {
        struct usb_tt *utt = udev->tt;
        struct mu3h_sch_tt *tt, **tt_index, **ptt;
-       unsigned int port;
        bool allocated_index = false;
 
        if (!utt)
@@ -126,10 +125,8 @@ static struct mu3h_sch_tt *find_tt(struct usb_device *udev)
                        utt->hcpriv = tt_index;
                        allocated_index = true;
                }
-               port = udev->ttport - 1;
-               ptt = &tt_index[port];
+               ptt = &tt_index[udev->ttport - 1];
        } else {
-               port = 0;
                ptt = (struct mu3h_sch_tt **) &utt->hcpriv;
        }
 
@@ -144,8 +141,6 @@ static struct mu3h_sch_tt *find_tt(struct usb_device *udev)
                        return ERR_PTR(-ENOMEM);
                }
                INIT_LIST_HEAD(&tt->ep_list);
-               tt->usb_tt = utt;
-               tt->tt_port = port;
                *ptt = tt;
        }
 

diff --git a/drivers/usb/host/xhci-mtk.h b/drivers/usb/host/xhci-mtk.h
index f42769c6924931aa4e910f20cffec57a8515721a..f61e53b02706029f496123c4a5d86be7ba0478e6 100644 (file)
--- a/drivers/usb/host/xhci-mtk.h
+++ b/drivers/usb/host/xhci-mtk.h
@@ -23,15 +23,11 @@
  * @ss_bit_map: used to avoid start split microframes overlay
  * @fs_bus_bw: array to keep track of bandwidth already used for FS
  * @ep_list: Endpoints using this TT
- * @usb_tt: usb TT related
- * @tt_port: TT port number
  */
 struct mu3h_sch_tt {
        DECLARE_BITMAP(ss_bit_map, XHCI_MTK_MAX_ESIT);
        u32 fs_bus_bw[XHCI_MTK_MAX_ESIT];
        struct list_head ep_list;
-       struct usb_tt *usb_tt;
-       int tt_port;
 };
 
 /**