litmus-rt.git/net/netlink, branch wip-default-clustering

netlink: Make NETLINK_USERSOCK work again.

2010-08-31T16:51:37+00:00

Once we started enforcing the a nl_table[] entry exist for
a protocol, NETLINK_USERSOCK stopped working.  Add a dummy
table entry so that it works again.

Reported-by: Thomas Voegtle 
Tested-by: Thomas Voegtle 
Signed-off-by: David S. Miller

netlink: fix compat recvmsg

2010-08-19T06:35:58+00:00

Since
commit 1dacc76d0014a034b8aca14237c127d7c19d7726
Author: Johannes Berg 
Date:   Wed Jul 1 11:26:02 2009 +0000

    net/compat/wext: send different messages to compat tasks

we had a race condition when setting and then
restoring frag_list. Eric attempted to fix it,
but the fix created even worse problems.

However, the original motivation I had when I
added the code that turned out to be racy is
no longer clear to me, since we only copy up
to skb->len to userspace, which doesn't include
the frag_list length. As a result, not doing
any frag_list clearing and restoring avoids
the race condition, while not introducing any
other problems.

Additionally, while preparing this patch I found
that since none of the remaining netlink code is
really aware of the frag_list, we need to use the
original skb's information for packet information
and credentials. This fixes, for example, the
group information received by compat tasks.

Cc: Eric Dumazet 
Cc: stable@kernel.org [2.6.31+, for 2.6.35 revert 1235f504aa]
Signed-off-by: Johannes Berg 
Acked-by: Eric Dumazet 
Signed-off-by: David S. Miller

Revert "netlink: netlink_recvmsg() fix"

2010-08-16T06:21:50+00:00

This reverts commit 1235f504aaba2ebeabc863fdb3ceac764a317d47.

It causes regressions worse than the problem it was trying
to fix.  Eric will try to solve the problem another way.

Signed-off-by: David S. Miller

genetlink: use genl_register_family_with_ops()

2010-07-27T04:00:10+00:00

Signed-off-by: Changli Gao 
Signed-off-by: David S. Miller

genetlink: cleanup code according to CodingStyle

2010-07-27T03:53:49+00:00

If the function is exported, the EXPORT* macro for it should follow immediately
after the closing function brace line.

Signed-off-by: Changli Gao 
----
 net/netlink/genetlink.c |    9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)
Signed-off-by: David S. Miller

netlink: netlink_recvmsg() fix

2010-07-26T20:09:16+00:00

commit 1dacc76d0014
(net/compat/wext: send different messages to compat tasks)
introduced a race condition on netlink, in case MSG_PEEK is used.

An skb given by skb_recv_datagram() might be shared, we must copy it
before any modification, or risk fatal corruption.

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

drop_monitor: convert some kfree_skb call sites to consume_skb

2010-07-20T20:28:05+00:00

Convert a few calls from kfree_skb to consume_skb

Noticed while I was working on dropwatch that I was detecting lots of internal
skb drops in several places.  While some are legitimate, several were not,
freeing skbs that were at the end of their life, rather than being discarded due
to an error.  This patch converts those calls sites from using kfree_skb to
consume_skb, which quiets the in-kernel drop_monitor code from detecting them as
drops.  Tested successfully by myself

Signed-off-by: Neil Horman 
Signed-off-by: David S. Miller

af_netlink: Add needed scm_destroy after scm_send.

2010-06-16T21:55:56+00:00

scm_send occasionally allocates state in the scm_cookie, so I have
modified netlink_sendmsg to guarantee that when scm_send succeeds
scm_destory will be called to free that state.

Signed-off-by: Eric W. Biederman 
Reviewed-by: Daniel Lezcano 
Acked-by: Pavel Emelyanov 
Signed-off-by: David S. Miller

netlink: Implment netlink_broadcast_filtered

2010-05-21T16:37:32+00:00

When netlink sockets are used to convey data that is in a namespace
we need a way to select a subset of the listening sockets to deliver
the packet to.  For the network namespace we have been doing this
by only transmitting packets in the correct network namespace.

For data belonging to other namespaces netlink_bradcast_filtered
provides a mechanism that allows us to examine the destination
socket and to decide if we should transmit the specified packet
to it.

Signed-off-by: Eric W. Biederman 
Acked-by: David S. Miller 
Signed-off-by: Greg Kroah-Hartman

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

2010-04-11T21:53:53+00:00

Conflicts:
	drivers/net/stmmac/stmmac_main.c
	drivers/net/wireless/wl12xx/wl1271_cmd.c
	drivers/net/wireless/wl12xx/wl1271_main.c
	drivers/net/wireless/wl12xx/wl1271_spi.c
	net/core/ethtool.c
	net/mac80211/scan.c