Commit Graph

321270 Commits

Author SHA1 Message Date
Eric W. Biederman
ebb7e95d93 sctp: Add infrastructure for per net sysctls
Start with an empty sctp_net_table that will be populated as the various
tunable sysctls are made per net.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 23:30:37 -07:00
Eric W. Biederman
b01a24078f sctp: Make the mib per network namespace
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 23:30:36 -07:00
Eric W. Biederman
bb2db45b54 sctp: Enable sctp in all network namespaces
- Fix the sctp_af operations to work in all namespaces
- Enable sctp socket creation in all network namespaces.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 23:29:59 -07:00
Eric W. Biederman
13d782f6b4 sctp: Make the proc files per network namespace.
- Convert all of the files under /proc/net/sctp to be per
  network namespace.

- Don't print anything for /proc/net/sctp/snmp except in
  the initial network namespaces as the snmp counters still
  have to be converted to be per network namespace.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 23:29:53 -07:00
Eric W. Biederman
632c928a6a sctp: Move the percpu sockets counter out of sctp_proc_init
The percpu sctp socket counter has nothing at all to do with the sctp
proc files, and having it in the wrong initialization is confusing,
and makes network namespace support a pain.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 23:17:26 -07:00
Eric W. Biederman
2ce9550350 sctp: Make the ctl_sock per network namespace
- Kill sctp_get_ctl_sock, it is useless now.
- Pass struct net where needed so net->sctp.ctl_sock is accessible.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 23:17:26 -07:00
Eric W. Biederman
4db67e8086 sctp: Make the address lists per network namespace
- Move the address lists into struct net
- Add per network namespace initialization and cleanup
- Pass around struct net so it is everywhere I need it.
- Rename all of the global variable references into references
  to the variables moved into struct net

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 23:12:17 -07:00
Eric W. Biederman
4110cc255d sctp: Make the association hashtable handle multiple network namespaces
- Use struct net in the hash calculation
- Use sock_net(association.base.sk) in the association lookups.
- On receive calculate the network namespace from skb->dev.
- Pass struct net from receive down to the functions that actually
  do the association lookup.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 22:44:12 -07:00
Eric W. Biederman
4cdadcbcb6 sctp: Make the endpoint hashtable handle multiple network namespaces
- Use struct net in the hash calculation
- Use sock_net(endpoint.base.sk) in the endpoint lookups.
- On receive calculate the network namespace from skb->dev.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 22:44:12 -07:00
Eric W. Biederman
f1f4376307 sctp: Make the port hash table use struct net in it's key.
- Add struct net into the port hash table hash calculation
- Add struct net inot the struct sctp_bind_bucket so there
  is a memory of which network namespace a port is allocated in.
  No need for a ref count because sctp_bind_bucket only exists
  when there are sockets in the hash table and sockets can not
  change their network namspace, and sockets already ref count
  their network namespace.
- Add struct net into the key comparison when we are testing
  to see if we have found the port hash table entry we are
  looking for.

With these changes lookups in the port hash table becomes
safe to use in multiple network namespaces.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 22:44:12 -07:00
Pavel Emelyanov
eea68e2f1a packet: Report socket mclist info via diag module
The info is reported as an array of packet_diag_mclist structures. Each
includes not only the directly configured values (index, type, etc), but
also the "count".

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 16:56:33 -07:00
Pavel Emelyanov
8a360be0c5 packet: Report more packet sk info via diag module
This reports in one rtattr message all the other scalar values, that can be
set on a packet socket with setsockopt.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 16:56:33 -07:00
Pavel Emelyanov
96ec632714 packet: Diag core and basic socket info dumping
The diag module can be built independently from the af_packet.ko one,
just like it's done in unix sockets.

The core dumping message carries the info available at socket creation
time, i.e. family, type and protocol (in the same byte order as shown in
the proc file).

The socket inode number and cookie is reserved for future per-socket info
retrieving. The per-protocol filtering is also reserved for future by
requiring the sdiag_protocol to be zero.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 16:56:33 -07:00
Pavel Emelyanov
2787b04b6c packet: Introduce net/packet/internal.h header
The diag module will need to access some private packet_sock data, so
move it to a header in advance. This file will be shared between the
af_packet.c and the diag.c

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 16:56:33 -07:00
Igor Maravic
ad5b310228 net: ipv4: fib_trie: Don't unnecessarily search for already found fib leaf
We've already found leaf, don't search for it again. Same is for fib leaf info.

Signed-off-by: Igor Maravic <igorm@etf.rs>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 15:02:20 -07:00
Priyanka Jain
418a99ac6a Replace rwlock on xfrm_policy_afinfo with rcu
xfrm_policy_afinfo is read mosly data structure.
Write on xfrm_policy_afinfo is done only at the
time of configuration.
So rwlocks can be safely replaced with RCU.

RCUs usage optimizes the performance.

Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 14:57:37 -07:00
xeb@mail.ru
c12b395a46 gre: Support GRE over IPv6
GRE over IPv6 implementation.

Signed-off-by: Dmitry Kozlov <xeb@mail.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 14:28:32 -07:00
Amerigo Wang
b7bc2a5b5b net: remove netdev_bonding_change()
I don't see any benifits to use netdev_bonding_change() than
using call_netdevice_notifiers() directly.

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 14:28:24 -07:00
Amerigo Wang
ee89bab14e net: move and rename netif_notify_peers()
I believe net/core/dev.c is a better place for netif_notify_peers(),
because other net event notify functions also stay in this file.

And rename it to netdev_notify_peers().

Cc: David S. Miller <davem@davemloft.net>
Cc: Ian Campbell <Ian.Campbell@citrix.com>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-14 14:28:23 -07:00
Haiyang Zhang
0f48917b93 hyperv: Add comments for the extended buffer after RNDIS message
Reported-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-09 16:44:39 -07:00
Pavel Emelyanov
1fb9489bf1 net: Loopback ifindex is constant now
As pointed out, there are places, that access net->loopback_dev->ifindex
and after ifindex generation is made per-net this value becomes constant
equals 1. So go ahead and introduce the LOOPBACK_IFINDEX constant and use
it where appropriate.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-09 16:18:07 -07:00
Pavel Emelyanov
aa79e66eee net: Make ifindex generation per-net namespace
Strictly speaking this is only _really_ required for checkpoint-restore to
make loopback device always have the same index.

This change appears to be safe wrt "ifindex should be unique per-system"
concept, as all the ifindex usage is either already made per net namespace
of is explicitly limited with init_net only.

There are two cool side effects of this. The first one -- ifindices of
devices in container are always small, regardless of how many containers
we've started (and re-started) so far. The second one is -- we can speed
up the loopback ifidex access as shown in the next patch.

v2: Place ifindex right after dev_base_seq : avoid two holes and use the
    same cache line, dirtied in list_netdevice()/unlist_netdevice()

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-09 16:18:07 -07:00
Pavel Emelyanov
e6f8f1a739 veth: Allow to create peer link with given ifindex
The ifinfomsg is in there (thanks kaber@ for foreseeing this long time ago),
so take the given ifidex and register netdev with it.

Ben noticed, that this code path previously ignored ifmp->ifi_index and
userland could be passing in garbage. Thus it may now fail occasionally
because the value clashes with an existing interface.

To address this it's assumed that if the caller specifies the ifindex for
the veth master device, then it's aware of this possibility and should
explicitly specify (or set to 0 for auto-assignment) the peer's ifindex as
well. With this the compatibility with old tools not setting ifindex is
preserved.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-09 16:18:07 -07:00
Pavel Emelyanov
9c7dafbfab net: Allow to create links with given ifindex
Currently the RTM_NEWLINK results in -EOPNOTSUPP if the ifinfomsg->ifi_index
is not zero. I propose to allow requesting ifindices on link creation. This
is required by the checkpoint-restore to correctly restore a net namespace
(i.e. -- a container).

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-09 16:18:06 -07:00
Pavel Emelyanov
b14f243a42 net: Dont use ifindices in hash fns
Eric noticed, that when there will be devices with equal indices, some
hash functions that use them will become less effective as they could.
Fix this in advance by mixing the net_device address into the hash value
instead of the device index.

This is true for arp and ndisc hash fns. The netlabel, can and llc ones
are also ifindex-based, but that three are init_net-only, thus will not
be affected.

Many thanks to David and Eric for the hash32_ptr implementation!

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-09 16:18:06 -07:00
Eric Dumazet
a399a80531 time: jiffies_delta_to_clock_t() helper to the rescue
Various /proc/net files sometimes report crazy timer values, expressed
in clock_t units.

This happens when an expired timer delta (expires - jiffies) is passed
to jiffies_to_clock_t().

This function has an overflow in :

return div_u64((u64)x * TICK_NSEC, NSEC_PER_SEC / USER_HZ);

commit cbbc719fcc (time: Change jiffies_to_clock_t() argument type
to unsigned long) only got around the problem.

As we cant output negative values in /proc/net/tcp without breaking
various tools, I suggest adding a jiffies_delta_to_clock_t() wrapper
that caps the negative delta to a 0 value.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Maciej Żenczykowski <maze@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: hank <pyu@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-09 16:17:03 -07:00
Eric Dumazet
79cda75a10 fib: use __fls() on non null argument
__fls(x) is a bit faster than fls(x), granted we know x is non null.

As Ben Hutchings pointed out, fls(x) = __fls(x) + 1

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-07 16:24:55 -07:00
Eric Dumazet
425f09ab7d net: output path optimizations
1) Avoid dirtying neighbour's confirmed field.

  TCP workloads hits this cache line for each incoming ACK.
  Lets write n->confirmed only if there is a jiffie change.

2) Optimize neigh_hh_output() for the common Ethernet case, were
   hh_len is less than 16 bytes. Replace the memcpy() call
   by two inlined 64bit load/stores on x86_64.

Bench results using udpflood test, with -C option (MSG_CONFIRM flag
added to sendto(), to reproduce the n->confirmed dirtying on UDP)

24 threads doing 1.000.000 UDP sendto() on dummy device, 4 runs.

before : 2.247s, 2.235s, 2.247s, 2.318s
after  : 1.884s, 1.905s, 1.891s, 1.895s

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-07 16:24:55 -07:00
Mugunthan V N
e07b94f135 documentation: dt: bindings: cpsw: fixing the examples for directly using it in dts file
Fixing the cpsw device tree example to make it simpler to copy pastable to dts
file and use it directly.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-07 16:24:55 -07:00
Mugunthan V N
ec03e6a89e drivers: net: ethernet: davince_mdio: device tree implementation
device tree implementation for davinci mdio driver

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-07 16:24:55 -07:00
Eric Dumazet
aae06bf5f9 tcp: ecn: dont delay ACKS after CE
While playing with CoDel and ECN marking, I discovered a
non optimal behavior of receiver of CE (Congestion Encountered)
segments.

In pathological cases, sender has reduced its cwnd to low values,
and receiver delays its ACK (by 40 ms).

While RFC 3168 6.1.3 (The TCP Receiver) doesn't explicitly recommend
to send immediate ACKS, we believe its better to not delay ACKS, because
a CE segment should give same signal than a dropped segment, and its
quite important to reduce RTT to give ECE/CWR signals as fast as
possible.

Note we already call tcp_enter_quickack_mode() from TCP_ECN_check_ce()
if we receive a retransmit, for the same reason.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-06 14:14:34 -07:00
Eric Dumazet
a9e050f4e7 net: tcp: GRO should be ECN friendly
While doing TCP ECN tests, I discovered GRO was reordering packets if it
receives one packet with CE set, while previous packets in same NAPI run
have ECT(0) for the same flow :

09:25:25.857620 IP (tos 0x2,ECT(0), ttl 64, id 27893, offset 0, flags
[DF], proto TCP (6), length 4396)
    172.30.42.19.54550 > 172.30.42.13.44139: Flags [.], seq
233801:238145, ack 1, win 115, options [nop,nop,TS val 3397779 ecr
1990627], length 4344

09:25:25.857626 IP (tos 0x3,CE, ttl 64, id 27892, offset 0, flags [DF],
proto TCP (6), length 1500)
    172.30.42.19.54550 > 172.30.42.13.44139: Flags [.], seq
232353:233801, ack 1, win 115, options [nop,nop,TS val 3397779 ecr
1990627], length 1448

09:25:25.857638 IP (tos 0x0, ttl 64, id 34581, offset 0, flags [DF],
proto TCP (6), length 64)
    172.30.42.13.44139 > 172.30.42.19.54550: Flags [.], cksum 0xac8f
(incorrect -> 0xca69), ack 232353, win 1271, options [nop,nop,TS val
1990627 ecr 3397779,nop,nop,sack 1 {233801:238145}], length 0

We have two problems here :

1) GRO reorders packets

  If NIC gave packet1, then packet2, which happen to be from "different
flows"  GRO feeds stack with packet2, then packet1. I have yet to
understand how to solve this problem.

2) GRO is not ECN friendly

Delivering packets out of order makes TCP stack not as fast as it could
be.

In this patch I suggest we make the tos test not part of the 'same_flow'
determination, but part of the 'should flush' logic

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-06 13:40:47 -07:00
Eric Dumazet
14a1968074 net: reorganize IP MIB values
Reduce IP latencies by placing hot MIB IP fields in a single cache line.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-06 13:40:47 -07:00
Eric Dumazet
d25398df59 net: avoid reloads in SNMP_UPD_PO_STATS
Avoid two instructions to reload dev->nd_net->mib.ip_statistics pointer,
unsing a temp variable, in ip_rcv(), ip_output() paths for example.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-06 13:40:47 -07:00
Eric Dumazet
9eb43e7653 ipv4: Introduce IN_DEV_NET_ROUTE_LOCALNET
performance profiles show a high cost in the IN_DEV_ROUTE_LOCALNET()
call done in ip_route_input_slow(), because of multiple dereferences,
even if cache lines are clean and available in cpu caches.

Since we already have the 'net' pointer, introduce
IN_DEV_NET_ROUTE_LOCALNET() macro avoiding two dereferences
(dev_net(in_dev->dev))

Also change the tests to use IN_DEV_NET_ROUTE_LOCALNET() only if saddr
or/and daddr are loopback addresse.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-04 01:27:57 -07:00
Eric Dumazet
40384999d1 ipv4: change inet_addr_hash()
Use net_hash_mix(net) instead of hash_ptr(net, 8), and use
hash_32() instead of using a serie of XOR

Define IN4_ADDR_HSIZE_SHIFT for clarity

__ip_dev_find() can perform the net_eq() call only if ifa_local
matches the key, to avoid unneeded dereferences.

remove inline attributes

# size net/ipv4/devinet.o.before net/ipv4/devinet.o
   text	   data	    bss	    dec	    hex	filename
  17471	   2545	   2048	  22064	   5630	net/ipv4/devinet.o.before
  17335	   2545	   2048	  21928	   55a8	net/ipv4/devinet.o

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-04 01:27:57 -07:00
Eric Dumazet
47061bc440 net: skb_share_check() should use consume_skb()
In order to avoid false drop_monitor indications, we should
call consume_skb() if skb_clone() was successful.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-04 01:27:57 -07:00
David S. Miller
cc72d100a3 Merge branch 'master' of git://kernel.ubuntu.com/rtg/net-next 2012-08-03 20:40:47 -07:00
Mugunthan V N
2eb32b0a6f drivers: net: ethernet: cpsw: Add device tree support to CPSW
This patch adds device tree support for cpsw driver

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-03 20:40:12 -07:00
Mugunthan V N
f07454fe2d drivers: net: ethernet: cpsw: Add SOC dependency support for cpsw dependent modules
cpsw is dependent on davinci_cpdma and davinci_mdio, so adding SOC support for
dependent modules

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-03 20:40:12 -07:00
Kevin Groeneveld
e51f6ff396 ppp: add 64 bit stats
Add 64 bit stats to ppp driver.  The 64 bit stats include tx_bytes,
rx_bytes, tx_packets and rx_packets.  Other stats are still 32 bit.
The 64 bit stats can be retrieved via the ndo_get_stats operation.  The
SIOCGPPPSTATS ioctl is still 32 bit stats only.

Signed-off-by: Kevin Groeneveld <kgroeneveld@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-03 20:40:12 -07:00
Jiri Pirko
8ff5105a2b team: add support for queue override by setting queue_id for port
Similar to what bonding has. This allows to set queue_id for port so
this port will be used when skb with matching skb->queue_mapping is
going to be transmitted.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-03 20:40:12 -07:00
Jiri Pirko
a86fc6b7d6 team: add per port priority option
Allow userspace to set port priority.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-03 20:40:12 -07:00
Jiri Pirko
69821638b2 team: add signed 32-bit team option type
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-03 20:40:11 -07:00
Jiri Pirko
4778e0be16 netlink: add signed types
Signed types might be needed in NL communication from time to time
(I need s32 in team driver), so add them.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-03 20:40:11 -07:00
Randy Dunlap
ff6e122595 cris: fix eth_v10.c build error
Fix build error on cris (not tested, no toolchain here):

drivers/net/cris/eth_v10.c: error: too many arguments to function 'e100rxtx_interrupt'

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc:	Mikael Starvik <starvik@axis.com>
Cc:	Jesper Nilsson <jesper.nilsson@axis.com>
Cc:	linux-cris-kernel@axis.com
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-03 20:32:31 -07:00
Peter Meiser
f3a1ef9cee cdc-ncm: tag Ericsson WWAN devices (eg F5521gw) with FLAG_WWAN
Hello,

looking at http://sourceforge.net/apps/mediawiki/mbm/index.php?title=Main_Page#Supported_devices, there are branded Ericsson devices from Dell and Toshiba.

The to-be-added vendor IDs are 0x413c for Dell and 0x0930 for Toshiba.

Please find attached a patch to add these vendor IDs.

Signed-off-by: Peter Meiser <meiser@gmx-topmail.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-03 20:32:30 -07:00
Wu Fengguang
77f00f6324 isdnloop: fix and simplify isdnloop_init()
Fix a buffer overflow bug by removing the revision and printk.

[   22.016214] isdnloop-ISDN-driver Rev 1.11.6.7
[   22.097508] isdnloop: (loop0) virtual card added
[   22.174400] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ffffffff83244972
[   22.174400]
[   22.436157] Pid: 1, comm: swapper Not tainted 3.5.0-bisect-00018-gfa8bbb1-dirty #129
[   22.624071] Call Trace:
[   22.720558]  [<ffffffff832448c3>] ? CallcNew+0x56/0x56
[   22.815248]  [<ffffffff8222b623>] panic+0x110/0x329
[   22.914330]  [<ffffffff83244972>] ? isdnloop_init+0xaf/0xb1
[   23.014800]  [<ffffffff832448c3>] ? CallcNew+0x56/0x56
[   23.090763]  [<ffffffff8108e24b>] __stack_chk_fail+0x2b/0x30
[   23.185748]  [<ffffffff83244972>] isdnloop_init+0xaf/0xb1

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-03 16:53:22 -07:00
Haiyang Zhang
ae9e63bb2c hyperv: Move wait completion msg code into rndis_filter_halt_device()
We need to wait for send_completion msg before put_rndis_request() at
the end of rndis_filter_halt_device(). Otherwise, netvsc_send_completion()
may reference freed memory which is overwritten, and cause panic.

Reported-by: Long Li <longli@microsoft.com>
Reported-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-03 16:51:11 -07:00
Yevgeny Petrilin
2207b60ffb net/mlx4_core: Remove port type restrictions
Port1=Eth, Port2=IB restriction is no longer required.
Having RoCE, there will always rdma port initialized over ConnectX
physical port, no matter whether the link layer is IB or Ethernet.
So we always have dual port IB device.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-08-03 16:49:40 -07:00