netdev - [PATCH net-next 1/4] r8169: convert while to for loop in rtl

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Date:   Fri, 6 Mar 2020 23:54:47 +0100
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Realtek linux nic maintainers <nic_swsd@...ltek.com>,
        David Miller <davem@...emloft.net>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: [PATCH net-next 1/4] r8169: convert while to for loop in rtl_tx

Slightly improve the code by converting this while to a for loop.

Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
 drivers/net/ethernet/realtek/r8169_main.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 4495a3cf9..c0999efa0 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -4392,9 +4392,8 @@ static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp,
 
 	dirty_tx = tp->dirty_tx;
 	smp_rmb();
-	tx_left = tp->cur_tx - dirty_tx;
 
-	while (tx_left > 0) {
+	for (tx_left = tp->cur_tx - dirty_tx; tx_left > 0; tx_left--) {
 		unsigned int entry = dirty_tx % NUM_TX_DESC;
 		struct ring_info *tx_skb = tp->tx_skb + entry;
 		u32 status;
@@ -4418,7 +4417,6 @@ static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp,
 			tx_skb->skb = NULL;
 		}
 		dirty_tx++;
-		tx_left--;
 	}
 
 	if (tp->dirty_tx != dirty_tx) {
-- 
2.25.1