Commit Graph

518970 Commits

Author SHA1 Message Date
Felix Fietkau
665a6cd809 pppoe: drop pppoe device in pppoe_unbind_sock_work
After receiving a PADT and the socket is closed, user space will no
longer drop the reference to the pppoe device.
This leads to errors like this:

[  488.570000] unregister_netdevice: waiting for eth0.2 to become free. Usage count = 2

Fixes: 287f3a943f ("pppoe: Use workqueue to die properly when a PADT is received")
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-11 12:58:22 -04:00
Stefan Wahren
268be0f7a7 net: qca_spi: Fix possible race during probe
Registering the netdev before setting the priv data is unsafe.
So fix this possible race by setting the priv data first.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Cc: <stable@vger.kernel.org> # v3.18+
Fixes: 291ab06e (net: qualcomm: new Ethernet over SPI driver for QCA7000)
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-11 11:01:20 -04:00
Bert Vermeulen
7c0c826828 net: mdio-gpio: Allow for unspecified bus id
When the bus id was supplied via a struct platform_device, the driver wasn't
handling -1 to mean an unspecified id of the only instance of this driver,
as the platform spec requires.

Signed-off-by: Bert Vermeulen <bert@biot.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-10 19:42:11 -04:00
Kretschmer, Mathias
fbf33a2802 af_packet / TX_RING not fully non-blocking (w/ MSG_DONTWAIT).
This patch fixes an issue where the send(MSG_DONTWAIT) call
on a TX_RING is not fully non-blocking in cases where the device's sndBuf is
full. We pass nonblock=true to sock_alloc_send_skb() and return any possibly
occuring error code (most likely EGAIN) to the caller. As the fast-path stays
as it is, we keep the unlikely() around skb == NULL.

Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-10 19:40:08 -04:00
Michal Schmidt
cd9c399777 bnx2x: limit fw delay in kdump to 5s after boot
Commit 12a8541d5c "bnx2x: Delay during kdump load" added a 5 seconds
delay to bnx2x's probe function in the kdump case to let the firmware
realize the old driver is gone.

The problem with the delay is that it is per-device, so if you have
several bnx2x NICs in NPAR mode, the delays can accumulate to minutes.

Fix it by adjusting the delay so that we do not wait more than
necessary, i.e. no more delaying after 5 seconds of kernel boot time.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-10 19:23:22 -04:00
Nicolas Schichan
0b59d8806a ARM: net: delegate filter to kernel interpreter when imm_offset() return value can't fit into 12bits.
The ARM JIT code emits "ldr rX, [pc, #offset]" to access the literal
pool. #offset maximum value is 4095 and if the generated code is too
large, the #offset value can overflow and not point to the expected
slot in the literal pool. Additionally, when overflow occurs, bits of
the overflow can end up changing the destination register of the ldr
instruction.

Fix that by detecting the overflow in imm_offset() and setting a flag
that is checked for each BPF instructions converted in
build_body(). As of now it can only be detected in the second pass. As
a result the second build_body() call can now fail, so add the
corresponding cleanup code in that case.

Using multiple literal pools in the JITed code is going to require
lots of intrusive changes to the JIT code (which would better be done
as a feature instead of fix), just delegating to the kernel BPF
interpreter in that case is a more straight forward, minimal fix and
easy to backport.

Fixes: ddecdfcea0 ("ARM: 7259/3: net: JIT compiler for packet filters")
Signed-off-by: Nicolas Schichan <nschichan@freebox.fr>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-10 19:21:49 -04:00
Nicolas Schichan
19fc99d0c6 ARM: net fix emit_udiv() for BPF_ALU | BPF_DIV | BPF_K intruction.
In that case, emit_udiv() will be called with rn == ARM_R0 (r_scratch)
and loading rm first into ARM_R0 will result in jit_udiv() function
being called the same dividend and divisor. Fix that by loading rn
first into ARM_R1 and then rm into ARM_R0.

Signed-off-by: Nicolas Schichan <nschichan@freebox.fr>
Cc: <stable@vger.kernel.org> # v3.13+
Fixes: aee636c480 (bpf: do not use reciprocal divide)
Acked-by: Mircea Gherzan <mgherzan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-10 19:20:32 -04:00
Tom Herbert
78f5b89919 mpls: Change reserved label names to be consistent with netbsd
Since these are now visible to userspace it is nice to be consistent
with BSD (sys/netmpls/mpls.h in netBSD).

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09 22:29:50 -04:00
David S. Miller
7c0004d396 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2015-05-07

This series contains updates to igb only.

Toshiaki provides two fixes for igb, first fixes an issue when changing
the number of rings by ethtool which causes oops because of uninitialized
pointers.  The second fix resolves a typo where tx_ring was used instead
of the desired rx_ring.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09 22:23:59 -04:00
Jason A. Donenfeld
3e4336a65a usbnet: avoid integer overflow in start_xmit
transfer_buffer_length is of type u32. It's therefore wrong to assign it
to a signed integer. This patch avoids the overflow.

It's worth noting that entry->length here is a long; perhaps it would be
beneficial at somepoint to change this to be unsigned as well, if
nothing else relies on its signedness for error conditions or the like.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09 16:46:18 -04:00
Tony Camuso
240b23c426 netxen_nic: use spin_[un]lock_bh around tx_clean_lock (2)
This patch should have been part of the previous patch having the
same summary. See  http://marc.info/?l=linux-kernel&m=143039470103795&w=2
Unfortunately, I didn't check to see where else this lock was used before
submitting that patch. This should take care of it for netxen_nic, as I
did a thorough search this time.

To recap from the original patch; although testing this driver with
DEBUG_LOCKDEP and DEBUG_SPINLOCK enabled did not produce any traces,
it would be more prudent in the case of tx_clean_lock to use _bh
versions of spin_[un]lock, since this lock is manipulated in both
the process and softirq contexts.

This patch was tested for functionality and regressions with netperf
and DEBUG_LOCKDEP and DEBUG_SPINLOCK enabled.

Signed-off-by: Tony Camuso <tcamuso@redhat.com>
Acked-By: Neil Horman <nhorman@tuxdriver.com>
Acked-By: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09 16:44:46 -04:00
Jean Delvare
ccad725ccb net: xgene_enet: Set hardware dependency
The xgene_enet driver is only useful on X-Gene SoC.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Iyappan Subramanian <isubramanian@apm.com>
Cc: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09 16:24:15 -04:00
Jean Delvare
74a78b15e6 net: amd-xgbe: Add hardware dependency
The amd-xgbe driver currently only works with the Seattle SoC, which
is ARM64 architecture, so there is no point in building this driver on
other architectures except for build testing purpose. The dependency
list can be updated later if the driver ever supports other
architectures.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09 16:24:15 -04:00
WANG Cong
d744318574 net_sched: fix a use-after-free in tc_ctl_tfilter()
When tcf_destroy() returns true, tp could be already destroyed,
we should not use tp->next after that.

For long term, we probably should move tp list to list_head.

Fixes: 1e052be69d ("net_sched: destroy proto tp when all filters are gone")
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09 16:14:04 -04:00
Vasily Titskiy
1006da19ea drivers/net/usb: Add support for 'Lenovo OneLink Pro Dock'
This device is sold as 'Lenovo OneLink Pro Dock'.
Chipset is RTL8153 and works with r8152.

Signed-off-by: Vasily Titskiy <qehgt0@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09 16:10:08 -04:00
Nathan Sullivan
bfbb92c446 net: macb: Handle the RXUBR interrupt on all devices
The same hardware issue the at91 must work around applies to at least the
Zynq ethernet, and possibly more devices.  The driver also needs to handle
the RXUBR interrupt since it turns it on with MACB_RX_INT_FLAGS anyway.

Signed-off-by: Nathan Sullivan <nathan.sullivan@ni.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09 16:04:43 -04:00
David S. Miller
d3196a2468 Merge branch 'rds'
Sowmini Varadhan says:

====================
net/rds: RDS-TCP robustness fixes

This patch-set contains bug fixes for state-recovery at the RDS
layer when the underlying transport is TCP and the TCP state at one
of the endpoints is reset

V2 changes: DaveM comments to reduce memory footprint, follow
            NFS/RPC model where possible. Added test-case #3

Without the changes in this set, when one of the endpoints is reset,
the existing code does not correctly clean up RDS socket state for stale
connections, resulting in some unstable, timing-dependant behavior on
the wire, including an infinite exchange of 3WHs back-and-forth, and a
resulting potential to never converge RDS state.

Test cases used to verify the changes in this set are:

1. Start rds client/server applications on two participating nodes,
   node1 and node2. After at least one packet has been sent (to establish
   the TCP connection), restart the rds_tcp module on the client, and
   now resend packets. Tcpdump should show server sending a FIN for the
   "old" client port, and clean connection establishment/exchange for
   the new client port.

2. At the end of step 1, restart rds srever on node2, and start client on
   node1, make sure using tcpdump, 'netstat -an|grep 16385' that
   packets flow correctly.

3. start RDS client/server application on two participating nodes, and
   repeat steps 1 and 2, but this time, simulate node failure by doing
   "ifconfig <intf> down", so no FIN is sent.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09 16:03:28 -04:00
Sowmini Varadhan
c82ac7e69e net/rds: RDS-TCP: only initiate reconnect attempt on outgoing TCP socket.
When the peer of an RDS-TCP connection restarts, a reconnect
attempt should only be made from the active side  of the TCP
connection, i.e. the side that has a transient TCP port
number. Do not add the passive side of the TCP connection
to the c_hash_node and thus avoid triggering rds_queue_reconnect()
for passive rds connections.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09 16:03:28 -04:00
Sowmini Varadhan
f711a6ae06 net/rds: RDS-TCP: Always create a new rds_sock for an incoming connection.
When running RDS over TCP, the active (client) side connects to the
listening ("passive") side at the RDS_TCP_PORT.  After the connection
is established, if the client side reboots (potentially without even
sending a FIN) the server still has a TCP socket in the esablished
state.  If the server-side now gets a new SYN comes from the client
with a different client port, TCP will create a new socket-pair, but
the RDS layer will incorrectly pull up the old rds_connection (which
is still associated with the stale t_sock and RDS socket state).

This patch corrects this behavior by having rds_tcp_accept_one()
always create a new connection for an incoming TCP SYN.
The rds and tcp state associated with the old socket-pair is cleaned
up via the rds_tcp_state_change() callback which would typically be
invoked in most cases when the client-TCP sends a FIN on TCP restart,
triggering a transition to CLOSE_WAIT state. In the rarer event of client
death without a FIN, TCP_KEEPALIVE probes on the socket will detect
the stale socket, and the TCP transition to CLOSE state will trigger
the RDS state cleanup.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09 16:03:27 -04:00
Markus Stenberg
e16e888b52 ipv6: Fixed source specific default route handling.
If there are only IPv6 source specific default routes present, the
host gets -ENETUNREACH on e.g. connect() because ip6_dst_lookup_tail
calls ip6_route_output first, and given source address any, it fails,
and ip6_route_get_saddr is never called.

The change is to use the ip6_route_get_saddr, even if the initial
ip6_route_output fails, and then doing ip6_route_output _again_ after
we have appropriate source address available.

Note that this is '99% fix' to the problem; a correct fix would be to
do route lookups only within addrconf.c when picking a source address,
and never call ip6_route_output before source address has been
populated.

Signed-off-by: Markus Stenberg <markus.stenberg@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09 15:58:41 -04:00
David S. Miller
0a801445db Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth
Johan Hedberg says:

====================
Here are a couple of important Bluetooth & mac802154 fixes for 4.1:

 - mac802154 fix for crypto algorithm allocation failure checking
 - mac802154 wpan phy leak fix for error code path
 - Fix for not calling Bluetooth shutdown() if interface is not up

Let me know if there are any issues pulling. Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09 15:51:00 -04:00
Toshiaki Makita
2439fc4d71 igb: Fix NULL assignment to incorrect variable in igb_reset_q_vector
adapter->tx_ring is set to NULL where rx_ring should be.

Fixes: 5536d2102a ("igb: Combine q_vector and ring allocation into a single function")
Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-05-07 05:11:29 -07:00
Toshiaki Makita
c0a06ee185 igb: Fix oops on changing number of rings
When changing the number of rings by ethtool -L, q_vectors are reused,
which causes oops because of uninitialized pointers.

- When an rx is reused as a tx, q_vector->rx.ring is not set to NULL, which
  misleads igb_poll() to determine that it has an rx ring although it
  actually points to the tx ring.
- When a tx is reused as an rx, q_vector->rx.ring->skb
  (q_vector->ring[0].skb) has a value that was used as tx_stats before.

Fix these problems by zeroing it out on reuseing it.

Fixes: 02ef6e1d0b ("igb: Fix queue allocation method to accommodate changing during runtime")
Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-05-07 05:08:32 -07:00
Eric Dumazet
31ccd0e66d tcp_westwood: fix tcp_westwood_info()
I forgot to update tcp_westwood when changing get_info() behavior,
this patch should fix this.

Fixes: 64f40ff5bb ("tcp: prepare CC get_info() access from getsockopt()")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-05 19:50:09 -04:00
David S. Miller
53ee1033ac iwlwifi:
* fix firmware API for -13.ucode
 * fix RSSI handling that avoid bad roaming decision
 * fix firmware debug
 * fix MFUART operation
 * fix ASSERT while restart the hardware (because of another ASSERT e.g)
 
 ath9k:
 
 * fix per-packet tx power configuration
 
 rtlwifi:
 
 * rtl8192cu: Fix kernel deadlock
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Merge tag 'wireless-drivers-for-davem-2015-05-05' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

Kalle Valo says:

====================
iwlwifi:

* fix firmware API for -13.ucode
* fix RSSI handling that avoid bad roaming decision
* fix firmware debug
* fix MFUART operation
* fix ASSERT while restart the hardware (because of another ASSERT e.g)

ath9k:

* fix per-packet tx power configuration

rtlwifi:

* rtl8192cu: Fix kernel deadlock
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-05 19:41:33 -04:00
Tom Herbert
c967a0873a mpls: Move reserved label definitions
Move to include/uapi/linux/mpls.h to be externally visibile.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-05 19:40:36 -04:00
David S. Miller
bc321ed2db Merge branch 'mlx4'
Or Gerlitz says:

====================
mlx4 fixes for 4.1-rc2

Eran's fix is for a small off-by-one introduces on 4.1-rc1.

Yisahi fixes an issue with comes into play only on VMs with
many (> 256) vCPUs.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-05 19:39:13 -04:00
Yishai Hadas
2d3c739739 net/mlx4_core: Work properly with EQ numbers > 256 in SRIOV
The Firmware uses dynamic EQs allocation based on number of VFs and
max EQs that can be allocated. As a result, VF can have EQ numbers
that are larger than 256.

According to the firmware spec, the max value is limited to be 1024
(10 bits), adapt the relevant code accordingly. This bug was impossible
to hit prior to commit 7ae0e400cd ("net/mlx4_core: Flexible (asymmetric)
allocation of EQs and MSI-X vectors for PF/VFs") which actually enables
large number of EQs for VFs.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-05 19:39:12 -04:00
Eran Ben Elisha
cae0633872 net/mlx4_en: Fix off-by-one in counters manipulation
This caused the en_stats_adder helper to accumulate a field which is
not related to the counter, fix that.

Fixes: a3333b35da ('net/mlx4_en: Moderate ethtool callback to show [..]')
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-05 19:39:12 -04:00
Jerry Snitselaar
7aab5159fa hv_netvsc: remove unused variable in netvsc_send()
With commit b56fc3c536 ("hv_netvsc: Fix a bug in netvsc_start_xmit()"),
skb variable is no longer used in netvsc_send. Remove variable and dead
code that depended on it.

Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-05 17:31:09 -04:00
David S. Miller
b7ba7b469a We have only a few fixes right now:
* a fix for an issue with hash collision handling in the
    rhashtable conversion
  * a merge issue - rhashtable removed default shrinking
    just before mac80211 was converted, so enable it now
  * remove an invalid WARN that can trigger with legitimate
    userspace behaviour
  * add a struct member missing from kernel-doc that caused
    a lot of warnings
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Merge tag 'mac80211-for-davem-2015-05-04' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
We have only a few fixes right now:
 * a fix for an issue with hash collision handling in the
   rhashtable conversion
 * a merge issue - rhashtable removed default shrinking
   just before mac80211 was converted, so enable it now
 * remove an invalid WARN that can trigger with legitimate
   userspace behaviour
 * add a struct member missing from kernel-doc that caused
   a lot of warnings
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04 16:00:55 -04:00
Yuval Mintz
0650c0b8d9 bnx2x: Fix to prevent inner-reload
Submit 909d9faae2 ("bnx2x: Prevent inner-reload while VFs exist")
contained a bug - MTU change was not prevented by it; Instead, it
`randomally' prevented bnx2x_resume() from running [harmless yet wrong].

This moves the check to its correct spot.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04 15:54:46 -04:00
David S. Miller
73e84313ee Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
Johan Hedberg says:

====================
pull request: bluetooth-next 2015-05-04

Here's the first bluetooth-next pull request for 4.2:

 - Various fixes for at86rf230 driver
 - ieee802154: trace events support for rdev->ops
 - HCI UART driver refactoring
 - New Realtek IDs added to btusb driver
 - Off-by-one fix for rtl8723b in btusb driver
 - Refactoring of btbcm driver for both UART & USB use

Please let me know if there are any issues pulling. Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04 15:36:07 -04:00
David Ahern
e2783717a7 net/rds: Fix new sparse warning
c0adf54a10 introduced new sparse warnings:
  CHECK   /home/dahern/kernels/linux.git/net/rds/ib_cm.c
net/rds/ib_cm.c:191:34: warning: incorrect type in initializer (different base types)
net/rds/ib_cm.c:191:34:    expected unsigned long long [unsigned] [usertype] dp_ack_seq
net/rds/ib_cm.c:191:34:    got restricted __be64 <noident>
net/rds/ib_cm.c:194:51: warning: cast to restricted __be64

The temporary variable for sequence number should have been declared as __be64
rather than u64. Make it so.

Signed-off-by: David Ahern <david.ahern@oracle.com>
Cc: shamir rabinovitch <shamir.rabinovitch@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04 15:23:06 -04:00
David S. Miller
a2d4fcb804 Revert "Revert "smc91x: retrieve IRQ and trigger flags in a modern way""
This reverts commit 8d7d9cca43.

Now that the necessary infrastructure is really all there
in the tree, we can put this change back in.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04 15:12:33 -04:00
Kamlakant Patel
965b2aa78f net/smsc911x: fix irq resource allocation failure
When smsc911x uses GPIO as the interrupt controller, and if both are
loaded as modules, we get following error:

"smsc911x: Could not allocate irq resource"

This issue is because of smsc911x using platform_get_resource to get
device tree based irq resource.

commit "9ec36ca (of/irq: do irq resolution in platform_get_irq)" and
commit "7085a7 (drivers: platform: parse IRQ flags from resources)" add
support in platform_get_irq to resolve irq and irq_flags respectively
for both modern device tree and legacy static platform data platforms.

Modify smsc911x driver to use platform_get_irq to pick up irq resource
correctly and use irq_get_trigger_type to get the IRQ trigger flags.

Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04 15:10:41 -04:00
Vlad Yasevich
d66bf7dd27 net: core: Correct an over-stringent device loop detection.
The code in __netdev_upper_dev_link() has an over-stringent
loop detection logic that actually prevents valid configurations
from working correctly.

In particular, the logic returns an error if an upper device
is already in the list of all upper devices for a given dev.
This particular check seems to be a overzealous as it disallows
perfectly valid configurations.  For example:
  # ip l a link eth0 name eth0.10 type vlan id 10
  # ip l a dev br0 typ bridge
  # ip l s eth0.10 master br0
  # ip l s eth0 master br0  <--- Will fail

If you switch the last two commands (add eth0 first), then both
will succeed.  If after that, you remove eth0 and try to re-add
it, it will fail!

It appears to be enough to simply check adj_list to keeps things
safe.

I've tried stacking multiple devices multiple times in all different
combinations, and either rx_handler registration prevented the stacking
of the device linking cought the error.

Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Veaceslav Falico <vfalico@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04 14:57:59 -04:00
Tilman Schmidt
6b096fded1 isdn/gigaset: cede maintainership
As German phone operators are discontinuing ISDN service, neither
Hansjörg nor I will be able to maintain the Gigaset ISDN drivers
any longer. Paul Bolle offered to step into the breach for odd
fixes.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Acked-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04 14:51:29 -04:00
Randy Dunlap
ff419b3f95 mac80211: fix 90 kernel-doc warnings
Eliminate 90 of these warnings:

Warning(..//include/net/mac80211.h:1682): No description found for parameter 'drv_priv[0]'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-05-04 12:56:13 +02:00
Vlad Yasevich
efdbd2b30c macvlan: Propagate promiscuity setting to lower devices.
When a macvlan device is placed in promiscuous mode, it currently
just sets it's multicast mask to permissive, but doesn't change
the state of the lower device.  As a result, not all multicast
traffic can be received on such device.  Additionally, none of
a vlan traffic can be received on such device as well.
This patch propagates the promiscuous mode setting to lower device
so that lower device may receive all packets that macvlan may
be interested in.

Signed-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04 00:14:13 -04:00
Herbert Xu
2e70aedd3d Revert "net: kernel socket should be released in init_net namespace"
This reverts commit c243d7e209.

That patch is solving a non-existant problem while creating a
real problem.  Just because a socket is allocated in the init
name space doesn't mean that it gets hashed in the init name space.

When we unhash it the name space must be the same as the one
we had when we hashed it.  So this patch is completely bogus
and causes socket leaks.

Reported-by: Andrey Wagin <avagin@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04 00:13:16 -04:00
David S. Miller
bd4d95a5c9 Merge branch 'dev_kfree_skb'
Alexander Duyck says:

====================
Clean-up some bits related to netpoll

This patch set cleans up some minor items related to netpoll.  The first
patch addresses an Rx clean-up bug that is triggered due to an assumption
that napi->poll wouldn't be called with a budget of 0.  The other two
patches address dev_kfree_skb being called in the xmit path which isn't
valid since netpoll will call ndo_start_xmit with IRQs disabled.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04 00:06:56 -04:00
Alexander Duyck
e7fcd5439f ixgbevf: Use dev_kfree_skb_any in xmit path, not dev_kfree_skb
With netpoll making use of the transmit function it is possible for the
ndo_start_xmit function to be called with irqs disabled.  As such we need
to use dev_kfree_skb_any in the Tx cleanup path for frames that are
dropped.

Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04 00:06:55 -04:00
Alexander Duyck
eb78139790 r8169: Do not use dev_kfree_skb in xmit path
The function r8169_csum_workaround is called in the ndo_start_xmit path of
the r8169 driver.  As such it should not be using dev_kfree_skb as it is
not irq safe, so instead we should be using dev_kfree_skb_any for freeing
in the dropped path, and dev_consume_skb_any for any frames that were
transmitted.

Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04 00:06:55 -04:00
Alexander Duyck
59486329b4 fm10k: Do not assume budget will never be 0 for NAPI
The netpoll path will call napi->poll with a budget of 0 in order to clean
the Tx rings only.  This change updates the fm10k driver so that it will
correctly support that instead of cleaning 1 Rx frame if a budget of 0 is
received.

Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04 00:06:55 -04:00
Vivien Didelot
4212b54331 net: dsa: mv88e6xxx: unregister mv88e6352 driver
Add the missing unregister for the mv88e6352_switch_driver.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-04 00:04:43 -04:00
David S. Miller
4f6d25deed linux-can-fixes-for-4.1-20150501
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Merge tag 'linux-can-fixes-for-4.1-20150501' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
this is a pull request of a single patch for net/master.

The patch is contributed by Jeppe Ledet-Pedersen, it fixes the
extended frame handling in the xilinx driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-03 23:45:09 -04:00
Paul Gortmaker
f0e9fc503a drivers/net: include <module.h> for modular stmmac_platform code
This file is built off of a tristate Kconfig option and also contains
modular function calls so it should explicitly include module.h to
avoid compile breakage during header shuffles done in the future.

Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: netdev@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-03 23:40:09 -04:00
shamir rabinovitch
c0adf54a10 net/rds: fix unaligned memory access
rdma_conn_param private data is copied using memcpy after headers such
as cma_hdr (see cma_resolve_ib_udp as example). so the start of the
private data is aligned to the end of the structure that come before. if
this structure end with u32 the meaning is that the start of the private
data will be 4 bytes aligned. structures that use u8/u16/u32/u64 are
naturally aligned but in case the structure start is not 8 bytes aligned,
all u64 members of this structure will not be aligned. to solve this issue
we must use special macros that allow unaligned access to those
unaligned members.

Addresses the following kernel log seen when attempting to use RDMA:

Kernel unaligned access at TPC[10507a88] rds_ib_cm_connect_complete+0x1bc/0x1e0 [rds_rdma]

Acked-by: Chien Yen <chien.yen@oracle.com>
Signed-off-by: shamir rabinovitch <shamir.rabinovitch@oracle.com>
[Minor tweaks for top of tree by:]
Signed-off-by: David Ahern <david.ahern@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-03 23:39:01 -04:00
Herbert Xu
edac450d5b netlink: Remove max_size setting
We currently limit the hash table size to 64K which is very bad
as even 10 years ago it was relatively easy to generate millions
of sockets.

Since the hash table is naturally limited by memory allocation
failure, we don't really need an explicit limit so this patch
removes it.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-03 23:27:02 -04:00