From: Ed Cashin <ecashin@coraid.com>
Date: Wed, 18 Feb 2009 22:48:13 +0000 (-0800)
Subject: aoe: ignore vendor extension AoE responses
X-Git-Tag: v2.6.28.8~105
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e66ddd9d206a473060e15036b86615e74beb4599;p=thirdparty%2Fkernel%2Fstable.git

aoe: ignore vendor extension AoE responses

commit b6d6c5175809934e04a606d9193ef04924a7a7d9 upstream.

The Welland ME-747K-SI AoE target generates unsolicited AoE responses that
are marked as vendor extensions.  Instead of ignoring these packets, the
aoe driver was generating kernel messages for each unrecognized response
received.  This patch corrects the behavior.

Signed-off-by: Ed Cashin <ecashin@coraid.com>
Reported-by: <karaluh@karaluh.pl>
Tested-by: <karaluh@karaluh.pl>
Cc: Alex Buell <alex.buell@munted.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h
index 93f3690396a51..8e54c1f18274f 100644
--- a/drivers/block/aoe/aoe.h
+++ b/drivers/block/aoe/aoe.h
@@ -18,6 +18,7 @@
 enum {
 	AOECMD_ATA,
 	AOECMD_CFG,
+	AOECMD_VEND_MIN = 0xf0,
 
 	AOEFL_RSP = (1<<3),
 	AOEFL_ERR = (1<<2),
diff --git a/drivers/block/aoe/aoenet.c b/drivers/block/aoe/aoenet.c
index 9157d64270cb0..b67629aedc8e7 100644
--- a/drivers/block/aoe/aoenet.c
+++ b/drivers/block/aoe/aoenet.c
@@ -153,6 +153,8 @@ aoenet_rcv(struct sk_buff *skb, struct net_device *ifp, struct packet_type *pt,
 		aoecmd_cfg_rsp(skb);
 		break;
 	default:
+		if (h->cmd >= AOECMD_VEND_MIN)
+			break;	/* don't complain about vendor commands */
 		printk(KERN_INFO "aoe: unknown cmd %d\n", h->cmd);
 	}
 exit: