From: Keir Fraser <keir.fraser@citrix.com>
Date: Tue, 5 Feb 2008 10:05:19 +0000 (+0000)
Subject: netback: Fix BUG_ON() on page-flip receive path which would always
X-Git-Tag: xen-3.2.0~10
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=d04ceb6194892d639ccc298a05ae8af3c605ab07;p=legacy%2Flinux-2.6.18-xen.git

netback: Fix BUG_ON() on page-flip receive path which would always
trigger and crash the kernbel.
Tracked down by Joakim Dahlstedt <jda@bea.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
---

diff --git a/drivers/xen/netback/netback.c b/drivers/xen/netback/netback.c
index 0eecf44c..79ce9ad0 100644
--- a/drivers/xen/netback/netback.c
+++ b/drivers/xen/netback/netback.c
@@ -607,7 +607,7 @@ static void net_rx_action(unsigned long unused)
 
 	npo.mmu_mcl = npo.mcl_prod;
 	if (npo.mcl_prod) {
-		BUG_ON(!xen_feature(XENFEAT_auto_translated_physmap));
+		BUG_ON(xen_feature(XENFEAT_auto_translated_physmap));
 		BUG_ON(npo.mmu_prod > ARRAY_SIZE(rx_mmu));
 		mcl = npo.mcl + npo.mcl_prod++;