netdev - [PATCH] tg3: Remove prev_vlan_tag from struct tx_ring

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Message-ID: <4AC36638.8070304@gmail.com>
Date:	Wed, 30 Sep 2009 16:07:52 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	"David S. Miller" <davem@...emloft.net>
CC:	Matt Carlson <mcarlson@...adcom.com>,
	Linux Netdev List <netdev@...r.kernel.org>,
	Michael Chan <mchan@...adcom.com>
Subject: [PATCH] tg3: Remove prev_vlan_tag from struct tx_ring_info

prev_vlan_tag field is not used.

Patch saves 512*8 bytes per tx queue ring on 64bit arches.

Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>
---

diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 82b45d8..524691c 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -2412,7 +2412,6 @@ struct ring_info {
 
 struct tx_ring_info {
 	struct sk_buff                  *skb;
-	u32                             prev_vlan_tag;
 };
 
 struct tg3_config_info {
--
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