From: Romain Francoise Date: Mon, 17 Jan 2011 07:59:18 +0000 (+0000) Subject: ipv6: Silence privacy extensions initialization X-Git-Tag: v2.6.35.14~191 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=879ed2486c8465ab8bd7b1bfd6f901e5589dbc16;p=karo-tx-linux.git ipv6: Silence privacy extensions initialization commit 2fdc1c8093255f9da877d7b9ce3f46c2098377dc upstream. When a network namespace is created (via CLONE_NEWNET), the loopback interface is automatically added to the new namespace, triggering a printk in ipv6_add_dev() if CONFIG_IPV6_PRIVACY is set. This is problematic for applications which use CLONE_NEWNET as part of a sandbox, like Chromium's suid sandbox or recent versions of vsftpd. On a busy machine, it can lead to thousands of useless "lo: Disabled Privacy Extensions" messages appearing in dmesg. It's easy enough to check the status of privacy extensions via the use_tempaddr sysctl, so just removing the printk seems like the most sensible solution. Signed-off-by: Romain Francoise Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman Signed-off-by: Andi Kleen --- diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 0bbaddc32935..b5ab939d4d92 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -415,9 +415,6 @@ static struct inet6_dev * ipv6_add_dev(struct net_device *dev) dev->type == ARPHRD_TUNNEL6 || dev->type == ARPHRD_SIT || dev->type == ARPHRD_NONE) { - printk(KERN_INFO - "%s: Disabled Privacy Extensions\n", - dev->name); ndev->cnf.use_tempaddr = -1; } else { in6_dev_hold(ndev);