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Conflicts:
net/bridge/br_mdb.c
Minor conflict in br_mdb.c, in 'net' we added a memset of the
on-stack 'ip' variable whereas in 'net-next' we assign a new
member 'vid'.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull networking fixes from David Miller:
1) Missing list head init in bluetooth hidp session creation, from Tedd
Ho-Jeong An.
2) Don't leak SKB in bridge netfilter error paths, from Florian
Westphal.
3) ipv6 netdevice private leak in netfilter bridging, fixed by Julien
Grall.
4) Fix regression in IP over hamradio bpq encapsulation, from Ralf
Baechle.
5) Fix race between rhashtable resize events and table walks, from Phil
Sutter.
6) Missing validation of IFLA_VF_INFO netlink attributes, fix from
Daniel Borkmann.
7) Missing security layer socket state initialization in tipc code,
from Stephen Smalley.
8) Fix shared IRQ handling in boomerang 3c59x interrupt handler, from
Denys Vlasenko.
9) Missing minor_idr destroy on module unload on macvtap driver, from
Johannes Thumshirn.
10) Various pktgen kernel thread races, from Oleg Nesterov.
11) Fix races that can cause packets to be processed in the backlog even
after a device attached to that SKB has been fully unregistered.
From Julian Anastasov.
12) bcmgenet driver doesn't account packet drops vs. errors properly,
fix from Petri Gynther.
13) Array index validation and off by one fix in DSA layer from Florian
Fainelli
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (66 commits)
can: replace timestamp as unique skb attribute
ARM: dts: dra7x-evm: Prevent glitch on DCAN1 pinmux
can: c_can: Fix default pinmux glitch at init
can: rcar_can: unify error messages
can: rcar_can: print request_irq() error code
can: rcar_can: fix typo in error message
can: rcar_can: print signed IRQ #
can: rcar_can: fix IRQ check
net: dsa: Fix off-by-one in switch address parsing
net: dsa: Test array index before use
net: switchdev: don't abort unsupported operations
net: bcmgenet: fix accounting of packet drops vs errors
cdc_ncm: update specs URL
Doc: z8530book: Fix typo in API-z8530-sync-txdma-open.html
net: inet_diag: always export IPV6_V6ONLY sockopt for listening sockets
bridge: mdb: allow the user to delete mdb entry if there's a querier
net: call rcu_read_lock early in process_backlog
net: do not process device backlog during unregistration
bridge: fix potential crash in __netdev_pick_tx()
net: axienet: Fix devm_ioremap_resource return value check
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2015-07-12
this is a pull request of 8 patchs for net/master.
Sergei Shtylyov contributes 5 patches for the rcar_can driver, fixing the IRQ
check and several info and error messages. There are two patches by J.D.
Schroeder and Roger Quadros for the c_can driver and dra7x-evm device tree,
which precent a glitch in the DCAN1 pinmux. Oliver Hartkopp provides a better
approach to make the CAN skbs unique, the timestamp is replaced by a counter.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit 514ac99c64b "can: fix multiple delivery of a single CAN frame for
overlapping CAN filters" requires the skb->tstamp to be set to check for
identical CAN skbs.
Without timestamping to be required by user space applications this timestamp
was not generated which lead to commit 36c01245eb8 "can: fix loss of CAN frames
in raw_rcv" - which forces the timestamp to be set in all CAN related skbuffs
by introducing several __net_timestamp() calls.
This forces e.g. out of tree drivers which are not using alloc_can{,fd}_skb()
to add __net_timestamp() after skbuff creation to prevent the frame loss fixed
in mainline Linux.
This patch removes the timestamp dependency and uses an atomic counter to
create an unique identifier together with the skbuff pointer.
Btw: the new skbcnt element introduced in struct can_skb_priv has to be
initialized with zero in out-of-tree drivers which are not using
alloc_can{,fd}_skb() too.
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Driver core sets "default" pinmux on on probe and CAN driver
sets "sleep" pinmux during register. This causes a small window
where the CAN pins are in "default" state with the DCAN module
being disabled.
Change the "default" state to be like sleep so this glitch is
avoided. Add a new "active" state that is used by the driver
when CAN is actually active.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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The previous change 3973c526ae9c (net: can: c_can: Disable pins when CAN
interface is down) causes a slight glitch on the pinctrl settings when used.
Since commit ab78029 (drivers/pinctrl: grab default handles from device core),
the device core will automatically set the default pins. This causes the pins
to be momentarily set to the default and then to the sleep state in
register_c_can_dev(). By adding an optional "enable" state, boards can set the
default pin state to be disabled and avoid the glitch when the switch from
default to sleep first occurs. If the "enable" state is not available
c_can_pinctrl_select_state() falls back to using the "default" pinctrl state.
[Roger Q] - Forward port to v4.2 and use pinctrl_get_select().
Signed-off-by: J.D. Schroeder <jay.schroeder@garmin.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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All the error messages in the driver but the ones from devm_clk_get() failures
use similar format. Make those two messages consitent with others.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Also print the error code when the request_irq() call fails in rcar_can_open(),
rewording the error message...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Fix typo in the first error message printed by rcar_can_open().
Based on the original patch by Vladimir Barinov.
Fixes: 862e2b6af941 ("can: rcar_can: support all input clocks")
Reported-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Printing IRQ # using "%x" and "%u" unsigned formats isn't quite correct as
'ndev->irq' is of type *int*, so the "%d" format needs to be used instead.
While fixing this, beautify the dev_info() message in rcar_can_probe() a bit.
Fixes: fd1159318e55 ("can: add Renesas R-Car CAN driver")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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rcar_can_probe() regards 0 as a wrong IRQ #, despite platform_get_irq() that it
calls returns negative error code in that case. This leads to the following
being printed to the console when attempting to open the device:
error requesting interrupt fffffffa
because rcar_can_open() calls request_irq() with a negative IRQ #, and that
function naturally fails with -EINVAL.
Check for the negative error codes instead and propagate them upstream instead
of just returning -ENODEV.
Fixes: fd1159318e55 ("can: add Renesas R-Car CAN driver")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Florian Fainelli says:
====================
net: dsa: OF parsing fixes
This patch series fixes two small parsing issues, the first one was
reported by Dan, the second came after looking more closely at the
code.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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cd->sw_addr is used as a MDIO bus address, which cannot exceed
PHY_MAX_ADDR (32), our check was off-by-one.
Fixes: 5e95329b701c ("dsa: add device tree bindings to register DSA switches")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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port_index is used an index into an array, and this information comes
from Device Tree, make sure that port_index is not equal to the array
size before using it. Move the check against port_index earlier in the
loop.
Fixes: 5e95329b701c: ("dsa: add device tree bindings to register DSA switches")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There is no need to abort attribute setting or object addition, if the
prepare phase returned operation not supported.
Thus, abort these two transactions only if the error is not -EOPNOTSUPP.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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bcmgenet driver needs to separate packet drops from packet errors.
When the driver has to drop a *good* packet, due to lack of buffers or
replacement skbs, increment only dev->stats.[rx|tx]_dropped.
When the driver encounters a bad Rx packet or Tx error, increment only
dev->stats.[rx|tx]_errors + relevant detailed error counter.
Signed-off-by: Petri Gynther <pgynther@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Update referenced specs link to reflect actual file version and location.
Signed-off-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fix a spelling typo found in API-z8530-sync-txdma-open.html.
It is because this file was generated from comment in source,
I have to fix comment in source.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Reconsidering my commit 20462155 "net: inet_diag: export IPV6_V6ONLY
sockopt", I am not happy with the limitations it causes for socket
analysing code in userspace. Exporting the value only if it is set makes
it hard for userspace to decide whether the option is not set or the
kernel does not support exporting the option at all.
>From an auditor's perspective, the interesting question for listening
AF_INET6 sockets is: "Does it NOT have IPV6_V6ONLY set?" Because it is
the unexpected case. This patch allows to answer this question reliably.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Until now when a querier was present static entries couldn't be deleted.
Fix this and allow the user to manipulate the mdb with or without a
querier.
Signed-off-by: Satish Ashok <sashok@cumulusnetworks.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Julian Anastasov says:
====================
net: fixes for device unregistration
Test script from Eric W. Biederman can catch a problem
where packets from backlog are processed long after the last
synchronize_net call. This can be reproduced after few tests
if commit 381c759d9916 ("ipv4: Avoid crashing in ip_error")
is reverted for the test. Incoming packets do not hold
reference to device but even if they do, subsystems do not
expect packets to fly during and after the NETDEV_UNREGISTER
event.
The first fix has the cost of netif_running check in fast path.
The second fix calls rcu_read_lock while local IRQ is disabled,
I hope this is not against the rules.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Incoming packet should be either in backlog queue or
in RCU read-side section. Otherwise, the final sequence of
flush_backlog() and synchronize_net() may miss packets
that can run without device reference:
CPU 1 CPU 2
skb->dev: no reference
process_backlog:__skb_dequeue
process_backlog:local_irq_enable
on_each_cpu for
flush_backlog => IPI(hardirq): flush_backlog
- packet not found in backlog
CPU delayed ...
synchronize_net
- no ongoing RCU
read-side sections
netdev_run_todo,
rcu_barrier: no
ongoing callbacks
__netif_receive_skb_core:rcu_read_lock
- too late
free dev
process packet for freed dev
Fixes: 6e583ce5242f ("net: eliminate refcounting in backlog queue")
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
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commit 381c759d9916 ("ipv4: Avoid crashing in ip_error")
fixes a problem where processed packet comes from device
with destroyed inetdev (dev->ip_ptr). This is not expected
because inetdev_destroy is called in NETDEV_UNREGISTER
phase and packets should not be processed after
dev_close_many() and synchronize_net(). Above fix is still
required because inetdev_destroy can be called for other
reasons. But it shows the real problem: backlog can keep
packets for long time and they do not hold reference to
device. Such packets are then delivered to upper levels
at the same time when device is unregistered.
Calling flush_backlog after NETDEV_UNREGISTER_FINAL still
accounts all packets from backlog but before that some packets
continue to be delivered to upper levels long after the
synchronize_net call which is supposed to wait the last
ones. Also, as Eric pointed out, processed packets, mostly
from other devices, can continue to add new packets to backlog.
Fix the problem by moving flush_backlog early, after the
device driver is stopped and before the synchronize_net() call.
Then use netif_running check to make sure we do not add more
packets to backlog. We have to do it in enqueue_to_backlog
context when the local IRQ is disabled. As result, after the
flush_backlog and synchronize_net sequence all packets
should be accounted.
Thanks to Eric W. Biederman for the test script and his
valuable feedback!
Reported-by: Vittorio Gambaletta <linuxbugs@vittgam.net>
Fixes: 6e583ce5242f ("net: eliminate refcounting in backlog queue")
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit c29390c6dfee ("xps: must clear sender_cpu before forwarding")
fixed an issue in normal forward path, caused by sender_cpu & napi_id
skb fields being an union.
Bridge is another point where skb can be forwarded, so we need
the same cure.
Bug triggers if packet was received on a NIC using skb_mark_napi_id()
Fixes: 2bd82484bb4c ("xps: fix xps for stacked devices")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Bob Liu <bob.liu@oracle.com>
Tested-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Value returned by devm_ioremap_resource() was checked for non-NULL but
devm_ioremap_resource() returns IOMEM_ERR_PTR, not NULL. In case of
error this could lead to dereference of ERR_PTR.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Cc: <stable@vger.kernel.org>
Fixes: 46aa27df8853 ("net: axienet: Use devm_* calls")
Reviewed-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Oleg Nesterov says:
====================
net: pktgen: fix race between pktgen_thread_worker() and kthread_stop()
I am not familiar with this code and I have no idea how to test
these changes, so 2/2 comes as a separate change. 1/2 looks like
the obvious bugfix, and probably candidate for -stable.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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pktgen_thread_worker() doesn't need to wait for kthread_stop(), it
can simply exit. Just pktgen_create_thread() and pg_net_exit() should
do get_task_struct()/put_task_struct(). kthread_stop(dead_thread) is
fine.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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pktgen_thread_worker() is obviously racy, kthread_stop() can come
between the kthread_should_stop() check and set_current_state().
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reported-by: Jan Stancek <jstancek@redhat.com>
Reported-by: Marcelo Leitner <mleitner@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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NCM specs are not actually mandating a specific position in the frame for
the NDP (Network Datagram Pointer). However, some Huawei devices will
ignore our aggregates if it is not placed after the datagrams it points
to. Add support for doing just this, in a per-device configurable way.
While at it, update NCM subdrivers, disabling this functionality in all of
them, except in huawei_cdc_ncm where it is enabled instead.
We aren't making any distinction between different Huawei NCM devices,
based on what the vendor driver does. Standard NCM devices are left
unaffected: if they are compliant, they should be always usable, still
stay on the safe side.
This change has been tested and working with a Huawei E3131 device (which
works regardless of NDP position), a Huawei E3531 (also working both
ways) and an E3372 (which mandates NDP to be after indexed datagrams).
V1->V2:
- corrected wrong NDP acronym definition
- fixed possible NULL pointer dereference
- patch cleanup
V2->V3:
- Properly account for the NDP size when writing new packets to SKB
Signed-off-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In commit 'c03abd84634d ("net: ethernet: cpsw: don't requests
IRQs we don't use")', common isr is split into tx and rx, but
in rx isr tx interrupt is also disabledi in cpsw_disable_irq().
So tx interrupts are not handled during rx interrupts and rx
napi completion and results in poor tx performance by 40Mbps.
Fixing by disabling only rx interrupt in rx isr.
Cc: Felipe Balbi <balbi@ti.com>
Cc: <stable@vger.kernel.org> # v4.0+
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use eth_hw_addr_random() instead of calling random_ether_addr().
Here, this change is setting addr_assign_type to NET_ADDR_RANDOM.
The Coccinelle semantic patch that performs this transformation
is as follows:
@@
identifier a,b;
@@
-random_ether_addr(a->b);
+eth_hw_addr_random(a);
Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Destroy minor_idr on module_exit, reclaiming the allocated memory.
This was detected by the following semantic patch (written by Luis Rodriguez
<mcgrof@suse.com>)
<SmPL>
@ defines_module_init @
declarer name module_init, module_exit;
declarer name DEFINE_IDR;
identifier init;
@@
module_init(init);
@ defines_module_exit @
identifier exit;
@@
module_exit(exit);
@ declares_idr depends on defines_module_init && defines_module_exit @
identifier idr;
@@
DEFINE_IDR(idr);
@ on_exit_calls_destroy depends on declares_idr && defines_module_exit @
identifier declares_idr.idr, defines_module_exit.exit;
@@
exit(void)
{
...
idr_destroy(&idr);
...
}
@ missing_module_idr_destroy depends on declares_idr && defines_module_exit && !on_exit_calls_destroy @
identifier declares_idr.idr, defines_module_exit.exit;
@@
exit(void)
{
...
+idr_destroy(&idr);
}
</SmPL>
Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for your net tree. This batch
mostly comes with patches to address fallout from the previous merge window
cycle, they are:
1) Use entry->state.hook_list from nf_queue() instead of the global nf_hooks
which is not valid when used from NFPROTO_NETDEV, this should cause no
problems though since we have no userspace queueing for that family, but
let's fix this now for the sake of correctness. Patch from Eric W. Biederman.
2) Fix compilation breakage in bridge netfilter if CONFIG_NF_DEFRAG_IPV4 is not
set, from Bernhard Thaler.
3) Use percpu jumpstack in arptables too, now that there's a single copy of the
rule blob we can't store the return address there anymore. Patch from
Florian Westphal.
4) Fix a skb leak in the xmit path of bridge netfilter, problem there since
2.6.37 although it should be not possible to hit invalid traffic there, also
from Florian.
5) Eric Leblond reports that when loading a large ruleset with many missing
modules after a fresh boot, nf_tables can take long time commit it. Fix this
by processing the full batch until the end, even on missing modules, then
abort only once and restart processing.
6) Add bridge netfilter files to the MAINTAINER files.
7) Fix a net_device refcount leak in the new IPV6 bridge netfilter code, from
Julien Grall.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The commit efb6de9b4ba0092b2c55f6a52d16294a8a698edd "netfilter: bridge:
forward IPv6 fragmented packets" introduced a new function
br_validate_ipv6 which take a reference on the inet6 device. Although,
the reference is not released at the end.
This will result to the impossibility to destroy any netdevice using
ipv6 and bridge.
It's possible to directly retrieve the inet6 device without taking a
reference as all netfilter hooks are protected by rcu_read_lock via
nf_hook_slow.
Spotted while trying to destroy a Xen guest on the upstream Linux:
"unregister_netdevice: waiting for vif1.0 to become free. Usage count = 1"
Signed-off-by: Julien Grall <julien.grall@citrix.com>
Cc: Bernhard Thaler <bernhard.thaler@wvnet.at>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: fw@strlen.de
Cc: ian.campbell@citrix.com
Cc: wei.liu2@citrix.com
Cc: Bob Liu <bob.liu@oracle.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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So scripts/get_maintainer.pl shows the Netfilter mailing lists.
Reported-by: Julien Grall <julien.grall@citrix.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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After a fresh boot with no modules in place at all and a large rulesets, the
existing nfnetlink_rcv_batch() funcion can take long time to commit the ruleset
due to the many abort path. This is specifically a problem for the existing
client of this code, ie. nf_tables, since it results in several
synchronize_rcu() call in a row.
This patch changes the policy to keep full batch processing on missing modules
errors so we abort only once.
Reported-by: Eric Leblond <eric@regit.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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br_nf_dev_queue_xmit must free skb in its error path.
NF_DROP is misleading -- its an okfn, not a netfilter hook.
Fixes: 462fb2af9788a ("bridge : Sanitize skb before it enters the IP stack")
Fixes: efb6de9b4ba00 ("netfilter: bridge: forward IPv6 fragmented packets")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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commit 482cfc318559 ("netfilter: xtables: avoid percpu ruleset duplication")
Unlike ip and ip6tables, arp tables were never converted to use the percpu
jump stack.
It still uses the rule blob to store return address, which isn't safe
anymore since we now share this blob among all processors.
Because there is no TEE support for arptables, we don't need to cope
with reentrancy, so we can use loocal variable to hold stack offset.
Fixes: 482cfc318559 ("netfilter: xtables: avoid percpu ruleset duplication")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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br_nf_ip_fragment() is not needed when neither CONFIG_NF_DEFRAG_IPV4 nor
CONFIG_NF_DEFRAG_IPV6 is set.
struct brnf_frag_data must be available if either CONFIG_NF_DEFRAG_IPV4
or CONFIG_NF_DEFRAG_IPV6 is set.
Fixes: efb6de9b4ba0 ("netfilter: bridge: forward IPv6 fragmented packets")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Bernhard Thaler <bernhard.thaler@wvnet.at>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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If someone sends packets from one of the netdevice ingress hooks to
the a userspace queue, and then userspace later accepts the packet,
the netfilter code can enter an infinite loop as the list head will
never be found.
Pass in the saved list_head to avoid this.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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The limit for BQL is updated each time we call
netdev_tx_completed_queue.
Without this patch the BQL limit was updated for every TX event we
see.
The issue was that this only updated the limit to handle the data
we complete in two events as the first event wouldn't show that
enough traffic had been processed between them.
This was OK when interrupt moderation was off but not when it was
on as more data had to be completed in a single interrupt.
The patch changes this so that we do report the completion to BQL
only when all the TX events in the interrupt have been processed.
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This device is sold as 'NVIDIA Tegra USB 3.0 Ethernet'.
Chipset is RTL8153 and works with r8152.
Signed-off-by: Zheng Liu <zhliu@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As its first order of business, boomerang_interrupt() checks whether
the device really has any pending interrupts. If it does not,
it does nothing and returns, but it still returns IRQ_HANDLED.
This is wrong: interrupt was not handled, IRQ handlers of other
devices sharing this IRQ line need to be called.
vortex_interrupt() has it right: it returns IRQ_NONE in this case
via IRQ_RETVAL(0).
Do the same in boomerang_interrupt().
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
CC: David S. Miller <davem@davemloft.net>
CC: linux-kernel@vger.kernel.org
CC: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
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vmxnet3's current napi path is built to count every rx descriptor we recieve,
and use that as a count of the napi budget. That means its possible to return
from a napi poll halfway through recieving a fragmented packet accross multiple
dma descriptors. If that happens, the next napi poll will start with the
descriptor ring in an improper state (e.g. the first descriptor we look at may
have the end-of-packet bit set), which will cause a BUG halt in the driver.
Fix the issue by only counting whole received packets in the napi poll and
returning that value, rather than the descriptor count.
Tested by the reporter and myself, successfully
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Shreyas Bhatewara <sbhatewara@vmware.com>
CC: "David S. Miller" <davem@davemloft.net>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This kernel patch exports the value of the new
ignore_routes_with_linkdown via netconf.
v2: changes to notify userspace via netlink when sysctl values change
and proposed for 'net' since this could be considered a bugfix
Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Suggested-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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calling efx_net_open()
This patch avoids the double up_write to filter_sem if
efx_net_open() fails.
Resolves: 2d432f20d27c1813a2746008e16dd6ce12a14dc1
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since commit b0e9a30dd669 ("bridge: Add vlan id to multicast groups")
there's a check in br_ip_equal() for a matching vlan id, but the mdb
functions were not modified to use (or at least zero it) so when an
entry was added it would have a garbage vlan id (from the local br_ip
variable in __br_mdb_add/del) and this would prevent it from being
matched and also deleted. So zero out the whole local ip var to protect
ourselves from future changes and also to fix the current bug, since
there's no vlan id support in the mdb uapi - use always vlan id 0.
Example before patch:
root@debian:~# bridge mdb add dev br0 port eth1 grp 239.0.0.1 permanent
root@debian:~# bridge mdb
dev br0 port eth1 grp 239.0.0.1 permanent
root@debian:~# bridge mdb del dev br0 port eth1 grp 239.0.0.1 permanent
RTNETLINK answers: Invalid argument
After patch:
root@debian:~# bridge mdb add dev br0 port eth1 grp 239.0.0.1 permanent
root@debian:~# bridge mdb
dev br0 port eth1 grp 239.0.0.1 permanent
root@debian:~# bridge mdb del dev br0 port eth1 grp 239.0.0.1 permanent
root@debian:~# bridge mdb
Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Fixes: b0e9a30dd669 ("bridge: Add vlan id to multicast groups")
Signed-off-by: David S. Miller <davem@davemloft.net>
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When cpsw's number of slave is set to 1 in device tree and while
accessing second slave ndev and priv in cpsw_tx_interrupt(),
there is a kernel crash. This is due to cpsw_get_slave_priv()
not verifying number of slaves while retriving netdev priv and
returns a invalid memory region. Fixing the issue by introducing
number of slave check in cpsw_get_slave_priv() and
cpsw_get_slave_ndev().
[ 15.879589] Unable to handle kernel paging request at virtual address 0f0e142c
[ 15.888540] pgd = ed374000
[ 15.891359] [0f0e142c] *pgd=00000000
[ 15.895105] Internal error: Oops: 5 [#1] SMP ARM
[ 15.899936] Modules linked in:
[ 15.903139] CPU: 0 PID: 593 Comm: udhcpc Tainted: G W 4.1.0-12205-gfda8b18-dirty #10
[ 15.912386] Hardware name: Generic AM43 (Flattened Device Tree)
[ 15.918557] task: ed2a2e00 ti: ed3fe000 task.ti: ed3fe000
[ 15.924187] PC is at cpsw_tx_interrupt+0x30/0x44
[ 15.929008] LR is at _raw_spin_unlock_irqrestore+0x40/0x44
[ 15.934726] pc : [<c048b9cc>] lr : [<c05ef4f4>] psr: 20000193
[ 15.934726] sp : ed3ffc08 ip : ed2a2e40 fp : 00000000
[ 15.946685] r10: c0969ce8 r9 : c0969cfc r8 : 00000000
[ 15.952129] r7 : 000000c6 r6 : ee54ab00 r5 : ee169c64 r4 : ee534e00
[ 15.958932] r3 : 0f0e0d0c r2 : 00000000 r1 : ed3ffbc0 r0 : 00000001
[ 15.965735] Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment user
[ 15.973261] Control: 10c5387d Table: ad374059 DAC: 00000015
[ 15.979246] Process udhcpc (pid: 593, stack limit = 0xed3fe218)
[ 15.985414] Stack: (0xed3ffc08 to 0xed400000)
[ 15.989954] fc00: ee54ab00 c009928c c0a9e648 60000193 000032e4 ee169c00
[ 15.998478] fc20: ee169c64 ee169c00 ee169c64 ee54ab00 00000001 00000001 ee67e268 ee008800
[ 16.006995] fc40: ee534800 c009946c ee169c00 ee169c64 c08bd660 c009c370 c009c2a4 000000c6
[ 16.015513] fc60: c08b75c4 c08b0854 00000000 c0098b3c 000000c6 c0098c50 ed3ffcb0 0000003a
[ 16.024033] fc80: ed3ffcb0 fa24010c c08b7800 fa240100 ee7e9880 c00094c4 c05ef4e8 60000013
[ 16.032556] fca0: ffffffff ed3ffce4 ee7e9880 c05ef964 00000001 ed2a33d8 00000000 ed2a2e00
[ 16.041080] fcc0: 60000013 ee536bf8 60000013 ee51b800 ee7e9880 ee67e268 ee7e9880 ee534800
[ 16.049603] fce0: c0ad0768 ed3ffcf8 c008e910 c05ef4e8 60000013 ffffffff 00000001 00000001
[ 16.058121] fd00: ee536bf8 c0487a04 00000000 00000000 ee534800 00000000 00000156 c048c990
[ 16.066645] fd20: 00000000 00000000 c0969f40 00000000 00000000 c05000e8 00000001 00000000
[ 16.075167] fd40: 00000000 c051eefc 00000000 ee67e268 00000000 00000000 ee51b800 ed3ffd9c
[ 16.083690] fd60: 00000000 ee67e200 ee51b800 ee7e9880 ee67e268 00000000 00000000 ee67e200
[ 16.092211] fd80: ee51b800 ee7e9880 ee67e268 ee534800 ee67e200 c051eedc ee67e268 00000010
[ 16.100727] fda0: 00000000 00000000 ee7e9880 ee534800 00000000 ee67e268 ee51b800 c05006fc
[ 16.109247] fdc0: ee67e268 00000001 c0500488 00000156 ee7e9880 00000000 ed3fe000 fffffff4
[ 16.117771] fde0: ed3fff1c ee7e9880 ee534800 00000148 00000000 ed1f8340 00000000 00000000
[ 16.126289] fe00: 00000000 c05a9054 00000000 00000000 00000156 c0ab62a8 00000010 ed3e7000
[ 16.134812] fe20: 00000000 00000008 edcfb700 ed3fff1c c0fb5f94 ed2a2e00 c0fb5f64 000005d8
[ 16.143336] fe40: c0a9b3b8 00000000 ed3e7070 00000000 00000000 00000000 00009f40 00000000
[ 16.151858] fe60: 00000000 00020022 00110008 00000000 00000000 43004400 00000000 ffffffff
[ 16.160374] fe80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 16.168898] fea0: edcfb700 bee5f380 00000014 00000000 ed3fe000 00000000 00004400 c04e2b64
[ 16.177415] fec0: 00000002 c04e3b00 ed3ffeec 00000001 0000011a 00000000 00000000 bee5f394
[ 16.185937] fee0: 00000148 ed3fff10 00000014 00000001 00000000 00000000 ed3ffee4 00000000
[ 16.194459] ff00: 00000000 00000000 00000000 c04e3664 00080011 00000002 06000000 ffffffff
[ 16.202980] ff20: 0000ffff ffffffff 0000ffff c008dd54 ee5a6f08 ee636e80 c096972d c0089c14
[ 16.211499] ff40: 00000000 60000013 ee5a6f40 60000013 00000000 ee5a6f40 00000002 00000006
[ 16.220023] ff60: 00000000 edcfb700 00000001 ed2a2e00 c000f60c 00000001 0000011a c008ea34
[ 16.228540] ff80: 00000006 00000000 bee5f380 00000014 bee5f380 00000014 bee5f380 00000122
[ 16.237059] ffa0: c000f7c4 c000f5e0 bee5f380 00000014 00000006 bee5f394 00000148 00000000
[ 16.245581] ffc0: bee5f380 00000014 bee5f380 00000122 fffffd6e 00004300 00004800 00004400
[ 16.254104] ffe0: bee5f378 bee5f36c 000307ec b6f39044 40000010 00000006 ed36fa40 00000000
[ 16.262642] [<c048b9cc>] (cpsw_tx_interrupt) from [<c009928c>] (handle_irq_event_percpu+0x64/0x204)
[ 16.272076] [<c009928c>] (handle_irq_event_percpu) from [<c009946c>] (handle_irq_event+0x40/0x64)
[ 16.281330] [<c009946c>] (handle_irq_event) from [<c009c370>] (handle_fasteoi_irq+0xcc/0x1a8)
[ 16.290220] [<c009c370>] (handle_fasteoi_irq) from [<c0098b3c>] (generic_handle_irq+0x20/0x30)
[ 16.299197] [<c0098b3c>] (generic_handle_irq) from [<c0098c50>] (__handle_domain_irq+0x64/0xdc)
[ 16.308273] [<c0098c50>] (__handle_domain_irq) from [<c00094c4>] (gic_handle_irq+0x20/0x60)
[ 16.316987] [<c00094c4>] (gic_handle_irq) from [<c05ef964>] (__irq_svc+0x44/0x5c)
[ 16.324779] Exception stack(0xed3ffcb0 to 0xed3ffcf8)
[ 16.330044] fca0: 00000001 ed2a33d8 00000000 ed2a2e00
[ 16.338567] fcc0: 60000013 ee536bf8 60000013 ee51b800 ee7e9880 ee67e268 ee7e9880 ee534800
[ 16.347090] fce0: c0ad0768 ed3ffcf8 c008e910 c05ef4e8 60000013 ffffffff
[ 16.353987] [<c05ef964>] (__irq_svc) from [<c05ef4e8>] (_raw_spin_unlock_irqrestore+0x34/0x44)
[ 16.362973] [<c05ef4e8>] (_raw_spin_unlock_irqrestore) from [<c0487a04>] (cpdma_check_free_tx_desc+0x60/0x6c)
[ 16.373311] [<c0487a04>] (cpdma_check_free_tx_desc) from [<c048c990>] (cpsw_ndo_start_xmit+0xb4/0x1ac)
[ 16.383017] [<c048c990>] (cpsw_ndo_start_xmit) from [<c05000e8>] (dev_hard_start_xmit+0x2a4/0x4c0)
[ 16.392364] [<c05000e8>] (dev_hard_start_xmit) from [<c051eedc>] (sch_direct_xmit+0xf4/0x210)
[ 16.401246] [<c051eedc>] (sch_direct_xmit) from [<c05006fc>] (__dev_queue_xmit+0x2ac/0x7bc)
[ 16.409960] [<c05006fc>] (__dev_queue_xmit) from [<c05a9054>] (packet_sendmsg+0xc68/0xeb4)
[ 16.418585] [<c05a9054>] (packet_sendmsg) from [<c04e2b64>] (sock_sendmsg+0x14/0x24)
[ 16.426663] [<c04e2b64>] (sock_sendmsg) from [<c04e3b00>] (SyS_sendto+0xb4/0xe0)
[ 16.434377] [<c04e3b00>] (SyS_sendto) from [<c000f5e0>] (ret_fast_syscall+0x0/0x54)
[ 16.442360] Code: e5943118 e593303c e3530000 0a000002 (e5930720)
[ 16.448716] ---[ end trace a68159f094d85ba6 ]---
[ 16.453526] Kernel panic - not syncing: Fatal exception in interrupt
[ 16.460149] ---[ end Kernel panic - not syncing: Fatal exception in interrupt
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Cc: <stable@vger.kernel.org> # v3.8+
Signed-off-by: David S. Miller <davem@davemloft.net>
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Calling connect() with an AF_TIPC socket would trigger a series
of error messages from SELinux along the lines of:
SELinux: Invalid class 0
type=AVC msg=audit(1434126658.487:34500): avc: denied { <unprintable> }
for pid=292 comm="kworker/u16:5" scontext=system_u:system_r:kernel_t:s0
tcontext=system_u:object_r:unlabeled_t:s0 tclass=<unprintable>
permissive=0
This was due to a failure to initialize the security state of the new
connection sock by the tipc code, leaving it with junk in the security
class field and an unlabeled secid. Add a call to security_sk_clone()
to inherit the security state from the parent socket.
Reported-by: Tim Shearer <tim.shearer@overturenetworks.com>
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Paul Moore <paul@paul-moore.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Shradha Shah says:
====================
sfc: compat for lack of VADAPTOR_SET_MAC in adaptor_firmware <= 4.1.1.1023
This patch series resolves an incompatibility with legacy
firmware due to the lack of MC_CMD_VADAPTOR_SET_MAC in
adaptor_firmware <= 4.1.1.1023
Unless this patch series is applied there will be a compatibility
issue between the driver and Solarflare adapters running older
firmware.
Tested with and without CONFIG_SFC_SRIOV
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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