linux-kernel - [PATCH 2/5] usb: mtu3: remove repeated setting of speed

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Date:   Fri, 28 May 2021 14:10:57 +0800
From:   Chunfeng Yun <chunfeng.yun@...iatek.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.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>,
        Eddie Hung <eddie.hung@...iatek.com>
Subject: [PATCH 2/5] usb: mtu3: remove repeated setting of speed

mtu3_gadget_start() will set speed, no need set it again in
mtu3_gadget_set_speed(), just save the desired speed.

Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
---
 drivers/usb/mtu3/mtu3.h        | 1 -
 drivers/usb/mtu3/mtu3_core.c   | 2 +-
 drivers/usb/mtu3/mtu3_gadget.c | 2 +-
 3 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/mtu3/mtu3.h b/drivers/usb/mtu3/mtu3.h
index a8a7ee11f7b7..531b9c78d7c3 100644
--- a/drivers/usb/mtu3/mtu3.h
+++ b/drivers/usb/mtu3/mtu3.h
@@ -425,7 +425,6 @@ void mtu3_ep_stall_set(struct mtu3_ep *mep, bool set);
 void mtu3_start(struct mtu3 *mtu);
 void mtu3_stop(struct mtu3 *mtu);
 void mtu3_dev_on_off(struct mtu3 *mtu, int is_on);
-void mtu3_set_speed(struct mtu3 *mtu, enum usb_device_speed speed);
 
 int mtu3_gadget_setup(struct mtu3 *mtu);
 void mtu3_gadget_cleanup(struct mtu3 *mtu);
diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c
index 2ef528f39ba3..6b5da98de648 100644
--- a/drivers/usb/mtu3/mtu3_core.c
+++ b/drivers/usb/mtu3/mtu3_core.c
@@ -207,7 +207,7 @@ static void mtu3_intr_enable(struct mtu3 *mtu)
 	mtu3_writel(mbase, U3D_DEV_LINK_INTR_ENABLE, SSUSB_DEV_SPEED_CHG_INTR);
 }
 
-void mtu3_set_speed(struct mtu3 *mtu, enum usb_device_speed speed)
+static void mtu3_set_speed(struct mtu3 *mtu, enum usb_device_speed speed)
 {
 	void __iomem *mbase = mtu->mac_base;
 
diff --git a/drivers/usb/mtu3/mtu3_gadget.c b/drivers/usb/mtu3/mtu3_gadget.c
index 38f17d66d5bc..5e21ba05ebf0 100644
--- a/drivers/usb/mtu3/mtu3_gadget.c
+++ b/drivers/usb/mtu3/mtu3_gadget.c
@@ -577,7 +577,7 @@ mtu3_gadget_set_speed(struct usb_gadget *g, enum usb_device_speed speed)
 	dev_dbg(mtu->dev, "%s %s\n", __func__, usb_speed_string(speed));
 
 	spin_lock_irqsave(&mtu->lock, flags);
-	mtu3_set_speed(mtu, speed);
+	mtu->speed = speed;
 	spin_unlock_irqrestore(&mtu->lock, flags);
 }
 
-- 
2.18.0