linux-kernel - [PATCH net-next 1/2] r8152: adjust set

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Message-ID: <1394712342-15778-108-Taiwan-albertk@realtek.com>
Date:	Fri, 19 Dec 2014 16:55:59 +0800
From:	Hayes Wang <hayeswang@...ltek.com>
To:	<netdev@...r.kernel.org>
CC:	<nic_swsd@...ltek.com>, <linux-kernel@...r.kernel.org>,
	<linux-usb@...r.kernel.org>, Hayes Wang <hayeswang@...ltek.com>
Subject: [PATCH net-next 1/2] r8152: adjust set_carrier

Update the tp->speed at the beginning of the function. Then,
the other fucntion could use it for checking linking status.

Signed-off-by: Hayes Wang <hayeswang@...ltek.com>
---
 drivers/net/usb/r8152.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 2d1c77e..59b70c5 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -2848,26 +2848,25 @@ static void rtl8153_down(struct r8152 *tp)
 static void set_carrier(struct r8152 *tp)
 {
 	struct net_device *netdev = tp->netdev;
-	u8 speed;
+	u8 old_speed = tp->speed;
 
 	clear_bit(RTL8152_LINK_CHG, &tp->flags);
-	speed = rtl8152_get_speed(tp);
+	tp->speed = rtl8152_get_speed(tp);
 
-	if (speed & LINK_STATUS) {
-		if (!(tp->speed & LINK_STATUS)) {
+	if (tp->speed & LINK_STATUS) {
+		if (!(old_speed & LINK_STATUS)) {
 			tp->rtl_ops.enable(tp);
 			set_bit(RTL8152_SET_RX_MODE, &tp->flags);
 			netif_carrier_on(netdev);
 		}
 	} else {
-		if (tp->speed & LINK_STATUS) {
+		if (old_speed & LINK_STATUS) {
 			netif_carrier_off(netdev);
 			tasklet_disable(&tp->tl);
 			tp->rtl_ops.disable(tp);
 			tasklet_enable(&tp->tl);
 		}
 	}
-	tp->speed = speed;
 }
 
 static void rtl_work_func_t(struct work_struct *work)
-- 
2.1.0

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