Commit Graph

399855 Commits

Author SHA1 Message Date
Nicolas Dichtel
205983c437 sit: allow to use rtnl ops on fb tunnel
rtnl ops where introduced by ba3e3f50a0 ("sit: advertise tunnel param via
rtnl"), but I forget to assign rtnl ops to fb tunnels.

Now that it is done, we must remove the explicit call to
unregister_netdevice_queue(), because  the fallback tunnel is added to the queue
in sit_destroy_tunnels() when checking rtnl_link_ops of all netdevices (this
is valid since commit 5e6700b3bf ("sit: add support of x-netns")).

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:55:53 -04:00
David S. Miller
9cb1712468 Merge branch 'ip_tunnel'
ip_tunnel bug fixes from Steffen Klassert.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:42:28 -04:00
Steffen Klassert
cfe4a53692 ip_tunnel: Remove double unregister of the fallback device
When queueing the netdevices for removal, we queue the
fallback device twice in ip_tunnel_destroy(). The first
time when we queue all netdevices in the namespace and
then again explicitly. Fix this by removing the explicit
queueing of the fallback device.

Bug was introduced when network namespace support was added
with commit 6c742e714d ("ipip: add x-netns support").

Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:42:16 -04:00
Steffen Klassert
78a3694d44 ip_tunnel_core: Change __skb_push back to skb_push
Git commit 0e6fbc5b ("ip_tunnels: extend iptunnel_xmit()")
moved the IP header installation to iptunnel_xmit() and
changed skb_push() to __skb_push(). This makes possible
bugs hard to track down, so change it back to skb_push().

Cc: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:42:16 -04:00
Steffen Klassert
6701328262 ip_tunnel: Add fallback tunnels to the hash lists
Currently we can not update the tunnel parameters of
the fallback tunnels because we don't find them in the
hash lists. Fix this by adding them on initialization.

Bug was introduced with commit c544193214
("GRE: Refactor GRE tunneling code.")

Cc: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:42:16 -04:00
Steffen Klassert
3e08f4a72f ip_tunnel: Fix a memory corruption in ip_tunnel_xmit
We might extend the used aera of a skb beyond the total
headroom when we install the ipip header. Fix this by
calling skb_cow_head() unconditionally.

Bug was introduced with commit c544193214
("GRE: Refactor GRE tunneling code.")

Cc: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:42:16 -04:00
David S. Miller
e024bdc051 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
The following patchset contains Netfilter/IPVS fixes for your net
tree, they are:

* Fix BUG_ON splat due to malformed TCP packets seen by synproxy, from
  Patrick McHardy.

* Fix possible weight overflow in lblc and lblcr schedulers due to
  32-bits arithmetics, from Simon Kirby.

* Fix possible memory access race in the lblc and lblcr schedulers,
  introduced when it was converted to use RCU, two patches from
  Julian Anastasov.

* Fix hard dependency on CPU 0 when reading per-cpu stats in the
  rate estimator, from Julian Anastasov.

* Fix race that may lead to object use after release, when invoking
  ipvsadm -C && ipvsadm -R, introduced when adding RCU, from Julian
  Anastasov.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:39:35 -04:00
Manish Chopra
1ed98ed55d qlcnic: Fix SR-IOV configuration
o Interface needs to be brought down and up while configuring SR-IOV.
  Protect interface up/down using rtnl_lock()/rtnl_unlock()

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:34:59 -04:00
Ricardo Ribalda
7167cf0e8c ll_temac: Reset dma descriptors indexes on ndo_open
The dma descriptors indexes are only initialized on the probe function.

If a packet is on the buffer when temac_stop is called, the dma
descriptors indexes can be left on a incorrect state where no other
package can be sent.

So an interface could be left in an usable state after ifdow/ifup.

This patch makes sure that the descriptors indexes are in a proper
status when the device is open.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 12:31:35 -04:00
Nicolas Dichtel
4590672357 skbuff: size of hole is wrong in a comment
Since commit c93bdd0e03 ("netvm: allow skb allocation to use PFMEMALLOC
reserves"), hole size is one bit less than what is written in the comment.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 22:32:39 -07:00
David S. Miller
d9a71f97d5 Merge branch 'fixes-for-3.12' of git://gitorious.org/linux-can/linux-can
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 22:31:05 -07:00
Salam Noureddine
9260d3e101 ipv6 mcast: use in6_dev_put in timer handlers instead of __in6_dev_put
It is possible for the timer handlers to run after the call to
ipv6_mc_down so use in6_dev_put instead of __in6_dev_put in the
handler function in order to do proper cleanup when the refcnt
reaches 0. Otherwise, the refcnt can reach zero without the
inet6_dev being destroyed and we end up leaking a reference to
the net_device and see messages like the following,

unregister_netdevice: waiting for eth0 to become free. Usage count = 1

Tested on linux-3.4.43.

Signed-off-by: Salam Noureddine <noureddine@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 22:28:58 -07:00
Salam Noureddine
e2401654dd ipv4 igmp: use in_dev_put in timer handlers instead of __in_dev_put
It is possible for the timer handlers to run after the call to
ip_mc_down so use in_dev_put instead of __in_dev_put in the handler
function in order to do proper cleanup when the refcnt reaches 0.
Otherwise, the refcnt can reach zero without the in_device being
destroyed and we end up leaking a reference to the net_device and
see messages like the following,

unregister_netdevice: waiting for eth0 to become free. Usage count = 1

Tested on linux-3.4.43.

Signed-off-by: Salam Noureddine <noureddine@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 22:28:56 -07:00
Bartlomiej Zolnierkiewicz
437a3ae1d0 ethernet: moxa: fix incorrect placement of __initdata tag
__initdata tag should be placed between the variable name and equal
sign for the variable to be placed in the intended .init.data section.

In this particular case __initdata is incorrect as moxart_mac_driver
can be used after the driver gets initialized.

Also while at it static-ize moxart_mac_driver.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 22:16:43 -07:00
Hannes Frederic Sowa
3da812d860 ipv6: gre: correct calculation of max_headroom
gre_hlen already accounts for sizeof(struct ipv6_hdr) + gre header,
so initialize max_headroom to zero. Otherwise the

	if (encap_limit >= 0) {
		max_headroom += 8;
		mtu -= 8;
	}

increments an uninitialized variable before max_headroom was reset.

Found with coverity: 728539

Cc: Dmitry Kozlov <xeb@mail.ru>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 22:04:09 -07:00
Aida Mynzhasova
e58f6f4fb4 powerpc/83xx: gianfar_ptp: select 1588 clock source through dts file
Currently IEEE 1588 timer reference clock source is determined through
hard-coded value in gianfar_ptp driver. This patch allows to select ptp
clock source by means of device tree file node.

For instance:

	fsl,cksel = <0>;

for using external (TSEC_TMR_CLK input) high precision timer
reference clock.

Other acceptable values:

	<1> : eTSEC system clock
	<2> : eTSEC1 transmit clock
	<3> : RTC clock input

When this attribute isn't used, eTSEC system clock will serve as
IEEE 1588 timer reference clock.

Signed-off-by: Aida Mynzhasova <aida.mynzhasova@skitlab.ru>
Acked-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 21:17:16 -07:00
David S. Miller
3f3f0960af Revert "powerpc/83xx: gianfar_ptp: select 1588 clock source through dts file"
This reverts commit 894116bd0e.

I applied the wrong version of this patch, correct
version coming up.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 21:16:17 -07:00
Neil Horman
5a0068deb6 bonding: Fix broken promiscuity reference counting issue
Recently grabbed this report:
https://bugzilla.redhat.com/show_bug.cgi?id=1005567

Of an issue in which the bonding driver, with an attached vlan encountered the
following errors when bond0 was taken down and back up:

dummy1: promiscuity touches roof, set promiscuity failed. promiscuity feature of
device might be broken.

The error occurs because, during __bond_release_one, if we release our last
slave, we take on a random mac address and issue a NETDEV_CHANGEADDR
notification.  With an attached vlan, the vlan may see that the vlan and bond
mac address were in sync, but no longer are.  This triggers a call to dev_uc_add
and dev_set_rx_mode, which enables IFF_PROMISC on the bond device.  Then, when
we complete __bond_release_one, we use the current state of the bond flags to
determine if we should decrement the promiscuity of the releasing slave.  But
since the bond changed promiscuity state during the release operation, we
incorrectly decrement the slave promisc count when it wasn't in promiscuous mode
to begin with, causing the above error

Fix is pretty simple, just cache the bonding flags at the start of the function
and use those when determining the need to set promiscuity.

This is also needed for the ALLMULTI flag

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: Mark Wu <wudxw@linux.vnet.ibm.com>
CC: "David S. Miller" <davem@davemloft.net>
Reported-by: Mark Wu <wudxw@linux.vnet.ibm.com>

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 21:10:55 -07:00
Eric Dumazet
c9eeec26e3 tcp: TSQ can use a dynamic limit
When TCP Small Queues was added, we used a sysctl to limit amount of
packets queues on Qdisc/device queues for a given TCP flow.

Problem is this limit is either too big for low rates, or too small
for high rates.

Now TCP stack has rate estimation in sk->sk_pacing_rate, and TSO
auto sizing, it can better control number of packets in Qdisc/device
queues.

New limit is two packets or at least 1 to 2 ms worth of packets.

Low rates flows benefit from this patch by having even smaller
number of packets in queues, allowing for faster recovery,
better RTT estimations.

High rates flows benefit from this patch by allowing more than 2 packets
in flight as we had reports this was a limiting factor to reach line
rate. [ In particular if TX completion is delayed because of coalescing
parameters ]

Example for a single flow on 10Gbp link controlled by FQ/pacing

14 packets in flight instead of 2

$ tc -s -d qd
qdisc fq 8001: dev eth0 root refcnt 32 limit 10000p flow_limit 100p
buckets 1024 quantum 3028 initial_quantum 15140
 Sent 1168459366606 bytes 771822841 pkt (dropped 0, overlimits 0
requeues 6822476)
 rate 9346Mbit 771713pps backlog 953820b 14p requeues 6822476
  2047 flow, 2046 inactive, 1 throttled, delay 15673 ns
  2372 gc, 0 highprio, 0 retrans, 9739249 throttled, 0 flows_plimit

Note that sk_pacing_rate is currently set to twice the actual rate, but
this might be refined in the future when a flow is in congestion
avoidance.

Additional change : skb->destructor should be set to tcp_wfree().

A future patch (for linux 3.13+) might remove tcp_limit_output_bytes

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 20:41:57 -07:00
Peter Korsgaard
bf0ea63807 dm9601: fix IFF_ALLMULTI handling
Pass-all-multicast is controlled by bit 3 in RX control, not bit 2
(pass undersized frames).

Reported-by: Joseph Chang <joseph_chang@davicom.com.tw>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 19:48:59 -04:00
Eric Dumazet
8d34ce10c5 pkt_sched: fq: qdisc dismantle fixes
fq_reset() should drops all packets in queue, including
throttled flows.

This patch moves code from fq_destroy() to fq_reset()
to do the cleaning.

fq_change() must stop calling fq_dequeue() if all remaining
packets are from throttled flows.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 15:51:23 -04:00
Eric Dumazet
b86783587b net: flow_dissector: fix thoff for IPPROTO_AH
In commit 8ed781668d ("flow_keys: include thoff into flow_keys for
later usage"), we missed that existing code was using nhoff as a
temporary variable that could not always contain transport header
offset.

This is not a problem for TCP/UDP because port offset (@poff)
is 0 for these protocols.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Daniel Borkmann <dborkman@redhat.com>
Cc: Nikolay Aleksandrov <nikolay@redhat.com>
Acked-by: Nikolay Aleksandrov <nikolay@redhat.com>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 15:32:05 -04:00
Wei Liu
8386040b76 MAINTAINERS: add myself as maintainer of xen-netback
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 15:16:02 -04:00
Paul Durrant
ea732dff5c xen-netback: Handle backend state transitions in a more robust way
When the frontend state changes netback now specifies its desired state to
a new function, set_backend_state(), which transitions through any
necessary intermediate states.
This fixes an issue observed with some old Windows frontend drivers where
they failed to transition through the Closing state and netback would not
behave correctly.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 15:13:28 -04:00
Paul Marks
c9d55d5bff ipv6: Fix preferred_lft not updating in some cases
Consider the scenario where an IPv6 router is advertising a fixed
preferred_lft of 1800 seconds, while the valid_lft begins at 3600
seconds and counts down in realtime.

A client should reset its preferred_lft to 1800 every time the RA is
received, but a bug is causing Linux to ignore the update.

The core problem is here:
  if (prefered_lft != ifp->prefered_lft) {

Note that ifp->prefered_lft is an offset, so it doesn't decrease over
time.  Thus, the comparison is always (1800 != 1800), which fails to
trigger an update.

The most direct solution would be to compute a "stored_prefered_lft",
and use that value in the comparison.  But I think that trying to filter
out unnecessary updates here is a premature optimization.  In order for
the filter to apply, both of these would need to hold:

  - The advertised valid_lft and preferred_lft are both declining in
    real time.
  - No clock skew exists between the router & client.

So in this patch, I've set "update_lft = 1" unconditionally, which
allows the surrounding code to be greatly simplified.

Signed-off-by: Paul Marks <pmarks@google.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 15:06:19 -04:00
Pravin B Shelar
d4a71b155c ip_tunnel: Do not use stale inner_iph pointer.
While sending packet skb_cow_head() can change skb header which
invalidates inner_iph pointer to skb header. Following patch
avoid using it. Found by code inspection.

This bug was introduced by commit 0e6fbc5b6c (ip_tunnels: extend
iptunnel_xmit()).

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 15:05:07 -04:00
Aleksander Morgado
2d77f34334 net: qmi_wwan: fix Cinterion PLXX product ID
Cinterion PLXX LTE devices have a 0x0060 product ID, not 0x12d1.

The blacklisting in the serial/option driver does actually use the correct PID,
as per commit 8ff10bdb14 ('USB: Blacklisted
Cinterion's PLxx WWAN Interface').

CC: Hans-Christoph Schemmel <hans-christoph.schemmel@gemalto.com>
CC: Christian Schmiedl <christian.schmiedl@gemalto.com>
CC: Nicolaus Colberg <nicolaus.colberg@gemalto.com>
Signed-off-by: Aleksander Morgado <aleksander@lanedo.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Christian Schmiedl <christian.schmiedl@gemalto.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 15:04:07 -04:00
Aida Mynzhasova
894116bd0e powerpc/83xx: gianfar_ptp: select 1588 clock source through dts file
Currently IEEE 1588 timer reference clock source is determined through
hard-coded value in gianfar_ptp driver. This patch allows to select ptp
clock source by means of device tree file node.

For instance:

	fsl,cksel = <0>;

for using external (TSEC_TMR_CLK input) high precision timer
reference clock.

Other acceptable values:

	<1> : eTSEC system clock
	<2> : eTSEC1 transmit clock
	<3> : RTC clock input

When this attribute isn't used, eTSEC system clock will serve as
IEEE 1588 timer reference clock.

Signed-off-by: Aida Mynzhasova <aida.mynzhasova@skitlab.ru>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 14:49:47 -04:00
Pravin B Shelar
559835ea72 vxlan: Use RCU apis to access sk_user_data.
Use of RCU api makes vxlan code easier to understand.  It also
fixes bug due to missing ACCESS_ONCE() on sk_user_data dereference.
In rare case without ACCESS_ONCE() compiler might omit vs on
sk_user_data dereference.
Compiler can use vs as alias for sk->sk_user_data, resulting in
multiple sk_user_data dereference in rcu read context which
could change.

CC: Jesse Gross <jesse@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 14:22:59 -04:00
Marc Kleine-Budde
0d1862ea1a can: flexcan: fix flexcan_chip_start() on imx6
In the flexcan_chip_start() function first the flexcan core is going through
the soft reset sequence, then the RX FIFO is enabled.

With the hardware is put into FIFO mode, message buffers 1...7 are reserved by
the FIFO engine. The remaining message buffers are in reset default values.
This patch removes the bogus initialization of the message buffers, as it
causes an imprecise external abort on imx6.

Cc: linux-stable <stable@vger.kernel.org>
Reported-by: Lothar Waßmann <LW@KARO-electronics.de>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2013-09-30 13:49:09 +02:00
Patrick McHardy
f4a87e7bd2 netfilter: synproxy: fix BUG_ON triggered by corrupt TCP packets
TCP packets hitting the SYN proxy through the SYNPROXY target are not
validated by TCP conntrack. When th->doff is below 5, an underflow happens
when calculating the options length, causing skb_header_pointer() to
return NULL and triggering the BUG_ON().

Handle this case gracefully by checking for NULL instead of using BUG_ON().

Reported-by: Martin Topholm <mph@one.com>
Tested-by: Martin Topholm <mph@one.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-09-30 12:44:38 +02:00
Eric Dumazet
9a3bab6b05 net: net_secret should not depend on TCP
A host might need net_secret[] and never open a single socket.

Problem added in commit aebda156a5
("net: defer net_secret[] initialization")

Based on prior patch from Hannes Frederic Sowa.

Reported-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Hannes Frederic Sowa <hannes@strressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-28 15:19:40 -07:00
Eric W. Biederman
50624c934d net: Delay default_device_exit_batch until no devices are unregistering v2
There is currently serialization network namespaces exiting and
network devices exiting as the final part of netdev_run_todo does not
happen under the rtnl_lock.  This is compounded by the fact that the
only list of devices unregistering in netdev_run_todo is local to the
netdev_run_todo.

This lack of serialization in extreme cases results in network devices
unregistering in netdev_run_todo after the loopback device of their
network namespace has been freed (making dst_ifdown unsafe), and after
the their network namespace has exited (making the NETDEV_UNREGISTER,
and NETDEV_UNREGISTER_FINAL callbacks unsafe).

Add the missing serialization by a per network namespace count of how
many network devices are unregistering and having a wait queue that is
woken up whenever the count is decreased.  The count and wait queue
allow default_device_exit_batch to wait until all of the unregistration
activity for a network namespace has finished before proceeding to
unregister the loopback device and then allowing the network namespace
to exit.

Only a single global wait queue is used because there is a single global
lock, and there is a single waiter, per network namespace wait queues
would be a waste of resources.

The per network namespace count of unregistering devices gives a
progress guarantee because the number of network devices unregistering
in an exiting network namespace must ultimately drop to zero (assuming
network device unregistration completes).

The basic logic remains the same as in v1.  This patch is now half
comment and half rtnl_lock_unregistering an expanded version of
wait_event performs no extra work in the common case where no network
devices are unregistering when we get to default_device_exit_batch.

Reported-by: Francesco Ruggeri <fruggeri@aristanetworks.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-28 15:09:15 -07:00
Catalin\(ux\) M. BOIE
7df37ff33d IPv6 NAT: Do not drop DNATed 6to4/6rd packets
When a router is doing DNAT for 6to4/6rd packets the latest
anti-spoofing commit 218774dc ("ipv6: add anti-spoofing checks for
6to4 and 6rd") will drop them because the IPv6 address embedded does
not match the IPv4 destination. This patch will allow them to pass by
testing if we have an address that matches on 6to4/6rd interface.  I
have been hit by this problem using Fedora and IPV6TO4_IPV4ADDR.
Also, log the dropped packets (with rate limit).

Signed-off-by: Catalin(ux) M. BOIE <catab@embedromix.ro>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-28 15:56:15 -04:00
Ming Lei
60e453a940 USBNET: fix handling padding packet
Commit 638c5115a7949(USBNET: support DMA SG) introduces DMA SG
if the usb host controller is capable of building packet from
discontinuous buffers, but missed handling padding packet when
building DMA SG.

This patch attachs the pre-allocated padding packet at the
end of the sg list, so padding packet can be sent to device
if drivers require that.

Reported-by: David Laight <David.Laight@aculab.com>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-28 15:42:49 -04:00
Sucheta Chakraborty
6645161513 qlcnic: Fix register device in FAILED state for 82xx.
o Commit 7e2cf4feba
  ("qlcnic: change driver hardware interface mechanism")
  has overwritten
  commit b43e5ee76a
  ("qlcnic: Register device in FAILED state")

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-27 17:26:20 -04:00
Ajit Khaparde
a60b3a13ab be2net: Fix to display the VLAN priority for a VF
VLAN priority is not being displayed for a VF currently when user executes
"ip link show" command. This patch fixes it.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-27 17:11:49 -04:00
Ajit Khaparde
b9fc0e53b0 be2net: Fix to configure VLAN priority for a VF interface.
Thix fix allows the VLAN priority to be configured for a VF interface
via the "ip link set DEVICE vf NUM" path.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-27 17:11:49 -04:00
Ajit Khaparde
45c459739e be2net: Fix to allow VLAN configuration on VF interfaces.
Now the VF interfaces have privilege to add VLANs.
Allow VLANs to be configured on these interfaces.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-27 17:11:49 -04:00
Ajit Khaparde
1aa9673c20 be2net: Fix number of VLANs supported in UMC mode for BE3-R.
In BE3-R, when UMC is enabled, the number of VLANs that can be added
to the interface is reduced to 15.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-27 17:11:49 -04:00
Ajit Khaparde
d9d604f865 be2net: Fix VLAN promiscuous mode programming
When the interface runs out of the allocated entries in VLAN table,
we program the interface in VLAN promiscuous mode.
Use OPCODE_COMMON_NTWK_RX_FILTER to set VLAN Promiscuous mode
instead of OPCODE_COMMON_NTWK_VLAN_CONFIG.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-27 17:11:49 -04:00
Ajit Khaparde
d44517fde6 be2net: Fix the size of be_nic_res_desc structure
Size of be_nic_res_desc structure is incorrect. Fix it.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-27 17:11:49 -04:00
Ajit Khaparde
b54881f994 be2net: Fix to prevent Tx stall on SH-R when packet size < 32
Tx on SH-R can lockup if the packet size is less than 32 bytes.
Pad such packets to a safer 36-byte size.
Patch uses the Lancer-R workaround - which checks for packet <= 32-bytes

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-27 17:11:48 -04:00
David S. Miller
a97b7c3aad Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
John W. Linville says:

====================
Regarding the Bluetooth bits, Gustavo says:

"First Bluetooth fixes to 3.12, it includes:

* 3 patches to add device id for 3 new hardwares.

* 2 patches from Johan to fix the rfkill behaviour during setup stage

* a small clean up in the rfcomm TTY code that fixes a potential racy
condition (by Gianluca Anzolin)

* 2 fixes to proper set encryption key size and security level in the
peripheral role of Bluetooth LE devices. (by Andre Guedes)

* a fix for dealing devices where pairing is not necessary, we were keeping
the Bluetooth ACL connection alive for too much time. (by Syam Sidhardhan)"

Also, I fixed-up an curly-brace indentation problem in the Bluetooth
code while merging.  On top of that...

Alexey Khoroshilov brings a p54usb fix to avoid a resource leak when
request_firmware_nowait fails.

Amitkumar Karwar fixes a firmware hang caused by too much header data
being appended for USB devices using the mwifiex driver.

Arend van Spriel provides three fixes: a brcmfmac fix to relocate some
driver code outside of an .init section; a scheduling while atomic
fix for bcma; and, another scheduling while atomic fix for brcmsmac.

Bing Zhao offers a pair of mwifiex fixes: a code change to avoid
firmware timeouts on USB; and a fix for a NULL pointer dereference.

Christian Lamparter adds a device ID to p54usb.

Felix Fietkau implements a quartet of small ath9k fixes, including
a locking fix, a list management fix, a fix to properly mark a stale
buffer, and an aggregate buffering fix.

Larry Finger champions a data alignment fix to make rtlwifi work
better with ARM builds.

Solomon Peachy reverts an earlier interrupt handling fix for cw1200
and replaces it with a new threaded oneshot irq handler implementation.

Sujith Manoharan fixes an ath9k regression by reverting an earlier
patch.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-27 16:05:34 -04:00
David S. Miller
89f077a085 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates

This series contains updates to igb and i40e.

Todd provides a fix for 82580 devices in igb, where the ethtool
loopback test was missing 82580 copper devices.

Jesse provides five fixes/cleanups to i40e based on feedback from
Joe Perches and the community.

v2: fixed up patch 5 in the series based on feedback from Joe Perches
    and David Miller
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-27 13:27:49 -04:00
John W. Linville
0a878747e1 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
Also fixed-up a badly indented closing brace...

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-09-27 13:11:17 -04:00
Jesse Brandeburg
d7595a226f i40e: clean up coccicheck reported errors
coccicheck shows:

drivers/net/ethernet/intel/i40e/i40e_adminq.c:704:2-8: Replace memcpy
with struct assignment
drivers/net/ethernet/intel/i40e/i40e_adminq.c:763:1-7: Replace memcpy
with struct assignment
drivers/net/ethernet/intel/i40e/i40e_adminq.c:810:2-8: Replace memcpy
with struct assignment
drivers/net/ethernet/intel/i40e/i40e_common.c:510:2-8: Replace memcpy
with struct assignment

Fix each of them with a *a = *b;

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-27 05:24:05 -07:00
Jesse Brandeburg
078b587648 i40e: better return values
As mentioned by Joe Perches, clean up return values in some functions
making sure to have consistent return types, not mixing types.

A couple of Joe's comments suggested returning void, but since
the functions in question are ndo defined, the return values are fixed.
So make a comment in the header that notes this is a function called by
net_device_ops.

v2: fix post increment bug in return

CC: Joe Perches <joe@perches.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-27 05:22:30 -07:00
Jesse Brandeburg
dcae29be4f i40e: convert ret to aq_ret
When calling admin queue functions the driver should use aq_ret
variable to help make clear that the return value is not a regular
return variable.

This allows for clean up of the return types that were previously
converted to int.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-27 04:50:58 -07:00
Jesse Brandeburg
ddf434acc0 i40e: small clean ups from review
As mentioned by Joe Perches clean up a loop flow.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Joe Perches <joe@perches.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2013-09-27 04:50:50 -07:00