From: Stephen Hemminger <shemminger@osdl.org>
Date: Tue, 21 Mar 2006 06:26:39 +0000 (-0800)
Subject: [NET]: minor net_rx_action optimization
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8aca8a27d96cd75a30c380130496c98b658c9b98;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[NET]: minor net_rx_action optimization

The functions list_del followed by list_add_tail is equivalent to the
existing inline list_move_tail. list_move_tail avoids unnecessary
_LIST_POISON.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/core/dev.c b/net/core/dev.c
index be1d896cc5b9..ee044097f7f2 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1759,8 +1759,7 @@ static void net_rx_action(struct softirq_action *h)
 		if (dev->quota <= 0 || dev->poll(dev, &budget)) {
 			netpoll_poll_unlock(have);
 			local_irq_disable();
-			list_del(&dev->poll_list);
-			list_add_tail(&dev->poll_list, &queue->poll_list);
+			list_move_tail(&dev->poll_list, &queue->poll_list);
 			if (dev->quota < 0)
 				dev->quota += dev->weight;
 			else