Commit Graph

423164 Commits

Author SHA1 Message Date
Eugene Crosser
c044dc2132 qeth: fix build of s390 allmodconfig
commit 949efd1c "qeth: bridgeport support - basic control" broke
s390 allmodconfig. This patch fixes this by eliminating one of the
cross-module calls, and by making two other calls via function
pointers in the qeth_discipline structure.

Signed-off-by: Eugene Crosser <Eugene.Crosser@ru.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-29 00:43:33 -08:00
Ding Tianhong
6fde8f037e bonding: fix locking in bond_loadbalance_arp_mon()
The commit 1d3ee88ae0
(bonding: add netlink attributes to slave link dev)
has add rtmsg_ifinfo() in bond_set_active_slave() and
bond_set_backup_slave(), so the two function need to
called in RTNL lock, but bond_loadbalance_arp_mon()
only calling these functions in RCU, warning message
will occurs.

fix this by add a new function bond_slave_state_change(),
which will reset the slave's state after slave link check,
so remove the bond_set_xxx_slave() from the cycle and only
record the slave_state_changed, this will call the new
function to set all slaves to new state in RTNL later.

Cc: Jay Vosburgh <fubar@us.ibm.com>
Cc: Veaceslav Falico <vfalico@redhat.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-28 23:48:33 -08:00
Masatake YAMATO
93e14b6d77 tun: add device name(iff) field to proc fdinfo entry
A file descriptor opened for /dev/net/tun and a tun device are
connected with ioctl.  Though understanding the connection is
important for trouble shooting, no way is given to a user to know
the connected device for a given file descriptor at userland.

This patch adds a new fdinfo field for the device name connected to
a file descriptor opened for /dev/net/tun.

Here is an example of the field:

    # lsof | grep tun
    qemu-syst 4565         qemu   25u      CHR             10,200       0t138      12921 /dev/net/tun
    ...

    # cat /proc/4565/fdinfo/25
    pos:	138
    flags:	0104002
    iff:	vnet0

    # ip link show dev vnet0
    8: vnet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 ...

changelog:

    v2: indent iff just like the other fdinfo fields are.
    v3: remove unused variable.
        Both are suggested by David Miller <davem@davemloft.net>.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-28 23:46:56 -08:00
David S. Miller
52efcea59e Merge branch 'DT'
Sergei Shtylyov says:

====================
DT: net: davinci_emac: couple more properties actually optional

   Though described as required, couple more properties in the DaVinci EMAC
binding are actually optional, as the driver will happily function without them.
The patchset is against DaveM's 'net.git' tree this time.

[1/2] DT: net: davinci_emac: "ti,davinci-rmii-en" property is actually optional
[2/2] DT: net: davinci_emac: "ti,davinci-no-bd-ram" property is actually optional
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-28 23:42:42 -08:00
Sergei Shtylyov
589dcb8a3f DT: net: davinci_emac: "ti, davinci-no-bd-ram" property is actually optional
The "ti,davinci-no-bd-ram" property for the DaVinci EMAC binding simply can't be
required one, as it's boolean (which means it's absent if false).

While at it, document the property better...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-28 23:41:29 -08:00
Sergei Shtylyov
731ff24423 DT: net: davinci_emac: "ti, davinci-rmii-en" property is actually optional
Though described as required, the "ti,davinci-rmii-en" property for the DaVinci
EMAC binding seems actually optional, as the driver should happily work without
it; the property is not specified either  in the example device node or in the
actual EMAC device node for DA850 device tree, only AM3517 one.

While at it, document the property better...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-28 23:41:29 -08:00
Yaniv Rosner
33f9e6f57e bnx2x: Fix generic option settings
When user tried to change generic options using "ethtool -s" command, while SFP
module is plugged out or during module detection, the command would have failed
with "Unsupported port type" message. The fix is to ignore the port option in
case it's same as the current port configuration.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-28 18:08:57 -08:00
Masanari Iida
7fceb4de75 net: Fix warning on make htmldocs caused by skbuff.c
This patch fixed following Warning while executing "make htmldocs".

Warning(/net/core/skbuff.c:2164): No description found for parameter 'from'
Warning(/net/core/skbuff.c:2164): Excess function parameter 'source'
description in 'skb_zerocopy'
Replace "@source" with "@from" fixed the warning.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-28 18:06:06 -08:00
David S. Miller
cd0c75a78d RxRPC fixes
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Merge tag 'rxrpc-20140126' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

David Howells says:

====================
RxRPC fixes

Here are some small AF_RXRPC fixes.

 (1) Fix a place where a spinlock is taken conditionally but is released
     unconditionally.

 (2) Fix a double-free that happens when cleaning up on a checksum error.

 (3) Fix handling of CHECKSUM_PARTIAL whilst delivering messages to userspace.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-28 18:04:18 -08:00
Dave Jones
0f1a24c9a9 llc: remove noisy WARN from llc_mac_hdr_init
Sending malformed llc packets triggers this spew, which seems excessive.

WARNING: CPU: 1 PID: 6917 at net/llc/llc_output.c:46 llc_mac_hdr_init+0x85/0x90 [llc]()
device type not supported: 0
CPU: 1 PID: 6917 Comm: trinity-c1 Not tainted 3.13.0+ #95
 0000000000000009 00000000007e257d ffff88009232fbe8 ffffffffac737325
 ffff88009232fc30 ffff88009232fc20 ffffffffac06d28d ffff88020e07f180
 ffff88009232fec0 00000000000000c8 0000000000000000 ffff88009232fe70
Call Trace:
 [<ffffffffac737325>] dump_stack+0x4e/0x7a
 [<ffffffffac06d28d>] warn_slowpath_common+0x7d/0xa0
 [<ffffffffac06d30c>] warn_slowpath_fmt+0x5c/0x80
 [<ffffffffc01736d5>] llc_mac_hdr_init+0x85/0x90 [llc]
 [<ffffffffc0173759>] llc_build_and_send_ui_pkt+0x79/0x90 [llc]
 [<ffffffffc057cdba>] llc_ui_sendmsg+0x23a/0x400 [llc2]
 [<ffffffffac605d8c>] sock_sendmsg+0x9c/0xe0
 [<ffffffffac185a37>] ? might_fault+0x47/0x50
 [<ffffffffac606321>] SYSC_sendto+0x121/0x1c0
 [<ffffffffac011847>] ? syscall_trace_enter+0x207/0x270
 [<ffffffffac6071ce>] SyS_sendto+0xe/0x10
 [<ffffffffac74aaa4>] tracesys+0xdd/0xe2

Until 2009, this was a printk, when it was changed in
bf9ae5386b: "llc: use dev_hard_header".

Let userland figure out what -EINVAL means by itself.

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-28 18:01:32 -08:00
David S. Miller
77c14e512f Merge branch 'qlcnic'
Rajesh Borundia says:

====================
qlcnic: bug fixes

The patch series contains following bug fixes

o Bound checks for number of receive descriptors and number of recieve rings.
  Both of these have off-by-one errors.
o Vlan list was getting re-initialized in case of adapter reset.
o Tx queue was timing out because of missing start queue for a corresponding
  netif_tx_disable.
o Loopback test failed because driver was not setting linkup variable
  while handling link events.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-28 12:00:00 -08:00
Shahed Shaikh
092dfcf347 qlcnic: Fix loopback test failure
Driver was returning from link event handler without
setting linkup variable

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-28 11:59:30 -08:00
Rajesh Borundia
060d0564a9 qlcnic: Fix tx timeout.
o __qlcnic_down call's netif_tx_disable which in turn stops
  all the TX queues, corresponding start queue was missing in
  __qlcnic_up which was leading to tx timeout.
o The commit b84caae486
  (qlcnic: Fix usage of netif_tx_{wake, stop} api during link change.)
  exposed this issue.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-28 11:59:30 -08:00
Rajesh Borundia
bcf6cb1aa4 qlcnic: Fix initialization of vlan list.
o Do not re-initialize vlan list in case of adapter reset.

Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-28 11:59:30 -08:00
Manish Chopra
462bed4870 qlcnic: Correct off-by-one errors in bounds checks
o Bound checks should be >= instead of > for number of receive descriptors
  and number of receive rings.

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-28 11:59:30 -08:00
Martin Schwenke
d922e1cb1e net: Document promote_secondaries
From 038a821667f62c496f2bbae27081b1b612122a97 Mon Sep 17 00:00:00 2001
From: Martin Schwenke <martin@meltin.net>
Date: Tue, 28 Jan 2014 15:16:49 +1100
Subject: [PATCH] net: Document promote_secondaries

This option was added a long time ago...

  commit 8f937c6099
  Author: Harald Welte <laforge@gnumonks.org>
  Date:   Sun May 29 20:23:46 2005 -0700

    [IPV4]: Primary and secondary addresses

Signed-off-by: Martin Schwenke <martin@meltin.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-27 20:39:21 -08:00
Duan Jiong
c0c0c50ff7 net: gre: use icmp_hdr() to get inner ip header
When dealing with icmp messages, the skb->data points the
ip header that triggered the sending of the icmp message.

In gre_cisco_err(), the parse_gre_header() is called, and the
iptunnel_pull_header() is called to pull the skb at the end of
the parse_gre_header(), so the skb->data doesn't point the
inner ip header.

Unfortunately, the ipgre_err still needs those ip addresses in
inner ip header to look up tunnel by ip_tunnel_lookup().

So just use icmp_hdr() to get inner ip header instead of skb->data.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-27 20:38:26 -08:00
Dave Jones
3d9667a9e1 i40e: Add missing braces to i40e_dcb_need_reconfig()
Indentation mismatch spotted with Coverity.
Introduced in 4e3b35b044 ("i40e: add DCB and DCBNL support")

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-27 20:17:31 -08:00
Annie Li
cefe0078ee xen-netfront: fix resource leak in netfront
This patch removes grant transfer releasing code from netfront, and uses
gnttab_end_foreign_access to end grant access since
gnttab_end_foreign_access_ref may fail when the grant entry is
currently used for reading or writing.

* clean up grant transfer code kept from old netfront(2.6.18) which grants
pages for access/map and transfer. But grant transfer is deprecated in current
netfront, so remove corresponding release code for transfer.

* fix resource leak, release grant access (through gnttab_end_foreign_access)
and skb for tx/rx path, use get_page to ensure page is released when grant
access is completed successfully.

Xen-blkfront/xen-tpmfront/xen-pcifront also have similar issue, but patches
for them will be created separately.

V6: Correct subject line and commit message.

V5: Remove unecessary change in xennet_end_access.

V4: Revert put_page in gnttab_end_foreign_access, and keep netfront change in
single patch.

V3: Changes as suggestion from David Vrabel, ensure pages are not freed untill
grant acess is ended.

V2: Improve patch comments.

Signed-off-by: Annie Li <annie.li@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-27 19:48:45 -08:00
Stephen Rothwell
ce60e0c4df net: 6lowpan: fixup for code movement
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-27 16:43:03 -08:00
Haiyang Zhang
b679ef73ed hyperv: Add support for physically discontinuous receive buffer
This will allow us to use bigger receive buffer, and prevent allocation failure
due to fragmented memory.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-27 16:40:45 -08:00
Stanislaw Gruszka
731073b9c9 sky2: initialize napi before registering device
There is race condition when call netif_napi_add() after
register_netdevice(), as ->open() can be called without napi initialized
and trigger BUG_ON() on napi_enable(), like on below messages:

[    9.699863] sky2: driver version 1.30
[    9.699960] sky2 0000:02:00.0: Yukon-2 EC Ultra chip revision 2
[    9.700020] sky2 0000:02:00.0: irq 45 for MSI/MSI-X
[    9.700498] ------------[ cut here ]------------
[    9.703391] kernel BUG at include/linux/netdevice.h:501!
[    9.703391] invalid opcode: 0000 [#1] PREEMPT SMP
<snip>
[    9.830018] Call Trace:
[    9.830018]  [<fa996169>] sky2_open+0x309/0x360 [sky2]
[    9.830018]  [<c1007210>] ? via_no_dac+0x40/0x40
[    9.830018]  [<c1007210>] ? via_no_dac+0x40/0x40
[    9.830018]  [<c135ed4b>] __dev_open+0x9b/0x120
[    9.830018]  [<c1431cbe>] ? _raw_spin_unlock_bh+0x1e/0x20
[    9.830018]  [<c135efd9>] __dev_change_flags+0x89/0x150
[    9.830018]  [<c135f148>] dev_change_flags+0x18/0x50
[    9.830018]  [<c13bb8e0>] devinet_ioctl+0x5d0/0x6e0
[    9.830018]  [<c13bcced>] inet_ioctl+0x6d/0xa0

To fix the problem patch changes the order of initialization.

Bug report:
https://bugzilla.kernel.org/show_bug.cgi?id=67151

Reported-and-tested-by: ebrahim.azarisooreh@gmail.com
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-27 16:39:53 -08:00
Holger Eitzenberger
a452ce345d net: Fix memory leak if TPROXY used with TCP early demux
I see a memory leak when using a transparent HTTP proxy using TPROXY
together with TCP early demux and Kernel v3.8.13.15 (Ubuntu stable):

unreferenced object 0xffff88008cba4a40 (size 1696):
  comm "softirq", pid 0, jiffies 4294944115 (age 8907.520s)
  hex dump (first 32 bytes):
    0a e0 20 6a 40 04 1b 37 92 be 32 e2 e8 b4 00 00  .. j@..7..2.....
    02 00 07 01 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff810b710a>] kmem_cache_alloc+0xad/0xb9
    [<ffffffff81270185>] sk_prot_alloc+0x29/0xc5
    [<ffffffff812702cf>] sk_clone_lock+0x14/0x283
    [<ffffffff812aaf3a>] inet_csk_clone_lock+0xf/0x7b
    [<ffffffff8129a893>] netlink_broadcast+0x14/0x16
    [<ffffffff812c1573>] tcp_create_openreq_child+0x1b/0x4c3
    [<ffffffff812c033e>] tcp_v4_syn_recv_sock+0x38/0x25d
    [<ffffffff812c13e4>] tcp_check_req+0x25c/0x3d0
    [<ffffffff812bf87a>] tcp_v4_do_rcv+0x287/0x40e
    [<ffffffff812a08a7>] ip_route_input_noref+0x843/0xa55
    [<ffffffff812bfeca>] tcp_v4_rcv+0x4c9/0x725
    [<ffffffff812a26f4>] ip_local_deliver_finish+0xe9/0x154
    [<ffffffff8127a927>] __netif_receive_skb+0x4b2/0x514
    [<ffffffff8127aa77>] process_backlog+0xee/0x1c5
    [<ffffffff8127c949>] net_rx_action+0xa7/0x200
    [<ffffffff81209d86>] add_interrupt_randomness+0x39/0x157

But there are many more, resulting in the machine going OOM after some
days.

From looking at the TPROXY code, and with help from Florian, I see
that the memory leak is introduced in tcp_v4_early_demux():

  void tcp_v4_early_demux(struct sk_buff *skb)
  {
    /* ... */

    iph = ip_hdr(skb);
    th = tcp_hdr(skb);

    if (th->doff < sizeof(struct tcphdr) / 4)
        return;

    sk = __inet_lookup_established(dev_net(skb->dev), &tcp_hashinfo,
                       iph->saddr, th->source,
                       iph->daddr, ntohs(th->dest),
                       skb->skb_iif);
    if (sk) {
        skb->sk = sk;

where the socket is assigned unconditionally to skb->sk, also bumping
the refcnt on it.  This is problematic, because in our case the skb
has already a socket assigned in the TPROXY target.  This then results
in the leak I see.

The very same issue seems to be with IPv6, but haven't tested.

Reviewed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-27 16:22:11 -08:00
David S. Miller
66dd1c077a Merge branch 'bonding'
Veaceslav Falico says:

====================
bonding: fix locking in bond_ab_arp_prob

After the latest patches, on every call of bond_ab_arp_probe() without an
active slave I see the following warning:

[    7.912314] RTNL: assertion failed at net/core/dev.c (4494)
...
[    7.922495]  [<ffffffff817acc6f>] dump_stack+0x51/0x72
[    7.923714]  [<ffffffff8168795e>] netdev_master_upper_dev_get+0x6e/0x70
[    7.924940]  [<ffffffff816a2a66>] rtnl_link_fill+0x116/0x260
[    7.926143]  [<ffffffff817acc6f>] ? dump_stack+0x51/0x72
[    7.927333]  [<ffffffff816a350c>] rtnl_fill_ifinfo+0x95c/0xb90
[    7.928529]  [<ffffffff8167af2b>] ? __kmalloc_reserve+0x3b/0xa0
[    7.929681]  [<ffffffff8167bfcf>] ? __alloc_skb+0x9f/0x1e0
[    7.930827]  [<ffffffff816a3b64>] rtmsg_ifinfo+0x84/0x100
[    7.931960]  [<ffffffffa00bca07>] bond_ab_arp_probe+0x1a7/0x370 [bonding]
[    7.933133]  [<ffffffffa00bcd78>] bond_activebackup_arp_mon+0x1a8/0x2f0 [bonding]
...

It happens because in bond_ab_arp_probe() we change the flags of a slave
without holding the RTNL lock.

To fix this - remove the useless curr_active_lock, RCUify it and lock RTNL
while changing the slave's flags. Also, remove bond_ab_arp_probe() from
under any locks in bond_ab_arp_mon().
====================

Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-27 13:12:50 -08:00
Veaceslav Falico
f2ebd477f1 bonding: restructure locking of bond_ab_arp_probe()
Currently we're calling it from under RCU context, however we're using some
functions that require rtnl to be held.

Fix this by restructuring the locking - don't call it under any locks,
aquire rcu_read_lock() if we're sending _only_ (i.e. we have the active
slave present), and use rtnl locking otherwise - if we need to modify
(in)active flags of a slave.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-27 13:12:45 -08:00
Veaceslav Falico
98b90f2665 bonding: RCUify bond_ab_arp_probe
Currently bond_ab_arp_probe() is always called under rcu_read_lock(),
however to work with curr_active_slave we're still holding the
curr_slave_lock.

To remove that curr_slave_lock - rcu_dereference the bond's
curr_active_slave and use it further - so that we're sure the slave won't
go away, and we don't care if it will change in the meanwhile.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-27 13:12:45 -08:00
Neil Horman
bb9fbe2ddd AF_PACKET: Add documentation for queue mapping fanout mode
Recently I added a new AF_PACKET fanout operation mode in commit
2d36097, but I forgot to document it.  Add PACKET_FANOUT_QM as an available mode
in the af_packet documentation.  Applies to net-next.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-27 12:57:32 -08:00
Yuval Mintz
5f6db130b5 bnx2x: More Shutdown revisions
Submission d9aee59 "bnx2x: Don't release PCI bars on shutdown" separated
the PCI remove and shutdown flows, but pci_disable_device() is still
being called on both.
As a result, a dev_WARN_ONCE will be hit during shutdown for every bnx2x
VF probed on a hypervisor (as its shutdown callback will be called and later
pci_disable_sriov() will call its remove callback).

This calls the pci_disable_device() only on the remove flow.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-27 12:57:31 -08:00
Sachin Kamat
27d79f3b10 net: ipv4: Use PTR_ERR_OR_ZERO
PTR_RET is deprecated. Use PTR_ERR_OR_ZERO instead. While at it
also include missing err.h header.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-27 12:57:31 -08:00
Hans de Goede
c88460b778 net: stmmac: Log MAC address only once
Logging the MAC address on every if-up, is not really useful, and annoying when
there is no cable inserted and NetworkManager tries the ifup every 50 seconds.

Also change the log level from warning to info, as that is what it is.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-26 22:40:44 -08:00
Hans de Goede
7509edd6e9 net: stmmac: Silence PTP init errors on hw without PTP
Logging a PTP error on hw which simply does not support PTP is not very
useful. Moreover this message gets logged on every if-up, and if there is
no cable inserted NetworkManager will re-try the ifup every 50 seconds.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-26 22:40:44 -08:00
Geert Uytterhoeven
b565c9f745 net/apne: Remove unused variable ei_local
drivers/net/ethernet/8390/apne.c: In function ‘apne_probe1’:
drivers/net/ethernet/8390/apne.c:215: warning: unused variable ‘ei_local’

Introduced by commit c45f812f02 ("8390 :
Replace ei_debug with msg_enable/NETIF_MSG_* feature"), which added the
variable without using it.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-26 22:40:43 -08:00
Florian Westphal
de960aa9ab net: add and use skb_gso_transport_seglen()
This moves part of Eric Dumazets skb_gso_seglen helper from tbf sched to
skbuff core so it may be reused by upcoming ip forwarding path patch.

Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-26 22:38:23 -08:00
Linus Torvalds
77d143de75 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML changes from Richard Weinberger:
 "This time only various cleanups and housekeeping patches"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: hostfs: make functions static
  um: Include generic barrier.h
  um: Removed unused attributes from thread_struct
2014-01-26 11:06:16 -08:00
Linus Torvalds
ccc039d65f MMC highlights for 3.14:
Core:
  - Avoid get_cd() on cards marked nonremovable.
 
 Drivers:
  - arasan: New driver for controllers found in e.g. Xilinx Zynq SoC.
  - dwmmc: Support Hisilicon K3 SoC controllers.
  - esdhc-imx: Support for HS200 mode, DDR modes on MX6, runtime PM.
  - sdhci-pci: Support O2Micro/BayHubTech controllers used in laptops
    like Lenovo ThinkPad W540, Dell Latitude E5440, Dell Latitude E6540.
  - tegra: Support Tegra124 SoCs.
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Merge tag 'mmc-updates-for-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

Pull MMC updates from Chris Ball:
 "MMC highlights for 3.14:

  Core:
   - Avoid get_cd() on cards marked nonremovable

  Drivers:
   - arasan: New driver for controllers found in e.g. Xilinx Zynq SoC
   - dwmmc: Support Hisilicon K3 SoC controllers
   - esdhc-imx: Support for HS200 mode, DDR modes on MX6, runtime PM
   - sdhci-pci: Support O2Micro/BayHubTech controllers used in laptops
     like Lenovo ThinkPad W540, Dell Latitude E5440, Dell Latitude E6540
   - tegra: Support Tegra124 SoCs"

* tag 'mmc-updates-for-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (55 commits)
  mmc: sdhci-pci: Fix possibility of chip->fixes being null
  mmc: sdhci-pci: Fix BYT sd card getting stuck in runtime suspend
  mmc: sdhci: Allow for long command timeouts
  mmc: sdio: add a quirk for broken SDIO_CCCR_INTx polling
  mmc: sdhci: fix lockdep error in tuning routine
  mmc: dw_mmc: k3: remove clk_table
  mmc: dw_mmc: fix dw_mci_get_cd
  mmc: dw_mmc: fix sparse non static symbol warning
  mmc: sdhci-esdhc-imx: fix warning during module remove function
  mmc: sdhci-esdhc-imx: fix access hardirq-unsafe lock in atomic context
  mmc: core: sd: implement proper support for sd3.0 au sizes
  mmc: atmel-mci: add vmmc-supply support
  mmc: sdhci-pci: add broken HS200 quirk for Intel Merrifield
  mmc: sdhci: add quirk for broken HS200 support
  mmc: arasan: Add driver for Arasan SDHCI
  mmc: dw_mmc: add dw_mmc-k3 for k3 platform
  mmc: dw_mmc: use slot-gpio to handle cd pin
  mmc: sdhci-pci: add support of O2Micro/BayHubTech SD hosts
  mmc: sdhci-pci: break out definitions to header file
  mmc: tmio: fixup compile error
  ...

Conflicts:
	MAINTAINERS
2014-01-26 11:00:41 -08:00
Linus Torvalds
1c2948380b 9p changes for 3.14 merge window
Included are a new cache model for support of mmap,
 and several cleanups across the filesystem and networking
 portions of the code.
 
 Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
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Merge tag 'for-3.14-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs

Pull 9p changes from Eric Van Hensbergen:
 "Included are a new cache model for support of mmap, and several
  cleanups across the filesystem and networking portions of the code"

* tag 'for-3.14-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  9p: update documentation
  9P: introduction of a new cache=mmap model.
  net/9p: remove virtio default hack and set appropriate bits instead
  9p: remove useless 'name' variable and assignment
  9p: fix return value in case in v9fs_fid_xattr_set()
  9p: remove useless variable and assignment
  9p: remove useless assignment
  9p: remove unused 'super_block' struct pointer
  9p: remove never used return variable
  9p: remove unused 'p9_fid' struct pointer
  9p: remove unused 'p9_client' struct pointer
2014-01-26 10:55:41 -08:00
Tim Smith
1ea427359d af_rxrpc: Handle frames delivered from another VM
On input, CHECKSUM_PARTIAL should be treated the same way as
CHECKSUM_UNNECESSARY. See include/linux/skbuff.h

Signed-off-by: Tim Smith <tim@electronghost.co.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
2014-01-26 11:45:04 +00:00
Tim Smith
24a9981ee9 af_rxrpc: Avoid setting up double-free on checksum error
skb_kill_datagram() does not dequeue the skb when MSG_PEEK is unset.
This leaves a free'd skb on the queue, resulting a double-free later.

Without this, the following oops can occur:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
IP: [<ffffffff8154fcf7>] skb_dequeue+0x47/0x70
PGD 0
Oops: 0002 [#1] SMP
Modules linked in: af_rxrpc ...
CPU: 0 PID: 1191 Comm: listen Not tainted 3.12.0+ #4
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
task: ffff8801183536b0 ti: ffff880035c92000 task.ti: ffff880035c92000
RIP: 0010:[<ffffffff8154fcf7>] skb_dequeue+0x47/0x70
RSP: 0018:ffff880035c93db8  EFLAGS: 00010097
RAX: 0000000000000246 RBX: ffff8800d2754b00 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000202 RDI: ffff8800d254c084
RBP: ffff880035c93dd0 R08: ffff880035c93cf0 R09: ffff8800d968f270
R10: 0000000000000000 R11: 0000000000000293 R12: ffff8800d254c070
R13: ffff8800d254c084 R14: ffff8800cd861240 R15: ffff880119b39720
FS:  00007f37a969d740(0000) GS:ffff88011fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000008 CR3: 00000000d4413000 CR4: 00000000000006f0
Stack:
 ffff8800d254c000 ffff8800d254c070 ffff8800d254c2c0 ffff880035c93df8
 ffffffffa041a5b8 ffff8800cd844c80 ffffffffa04385a0 ffff8800cd844cb0
 ffff880035c93e18 ffffffff81546cef ffff8800d45fea00 0000000000000008
Call Trace:
 [<ffffffffa041a5b8>] rxrpc_release+0x128/0x2e0 [af_rxrpc]
 [<ffffffff81546cef>] sock_release+0x1f/0x80
 [<ffffffff81546d62>] sock_close+0x12/0x20
 [<ffffffff811aaba1>] __fput+0xe1/0x230
 [<ffffffff811aad3e>] ____fput+0xe/0x10
 [<ffffffff810862cc>] task_work_run+0xbc/0xe0
 [<ffffffff8106a3be>] do_exit+0x2be/0xa10
 [<ffffffff8116dc47>] ? do_munmap+0x297/0x3b0
 [<ffffffff8106ab8f>] do_group_exit+0x3f/0xa0
 [<ffffffff8106ac04>] SyS_exit_group+0x14/0x20
 [<ffffffff8166b069>] system_call_fastpath+0x16/0x1b


Signed-off-by: Tim Smith <tim@electronghost.co.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
2014-01-26 11:45:04 +00:00
Alexey Khoroshilov
8f22ba61b5 RxRPC: do not unlock unheld spinlock in rxrpc_connect_exclusive()
If rx->conn is not NULL, rxrpc_connect_exclusive() does not
acquire the transport's client lock, but it still releases it.

The patch adds locking of the spinlock to this path.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: David Howells <dhowells@redhat.com>
2014-01-26 11:39:51 +00:00
James Hogan
9e443bc369 um: hostfs: make functions static
The hostfs_*() callback functions are all only used within
hostfs_kern.c, so make them static.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: user-mode-linux-devel@lists.sourceforge.net
Signed-off-by: Richard Weinberger <richard@nod.at>
2014-01-26 11:51:09 +01:00
Richard Weinberger
9af2452a18 um: Include generic barrier.h
...to get smp_store_release().

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
2014-01-26 11:48:49 +01:00
Richard Weinberger
61aad98a7f um: Removed unused attributes from thread_struct
temp_stack and mm_count have no users and can be killed.

Signed-off-by: Richard Weinberger <richard@nod.at>
2014-01-26 11:48:37 +01:00
Linus Torvalds
b2e448eca1 Merge branch 'ipmi' (ipmi patches from Corey Minyard)
Merge ipmi fixes from Corey Minyard:
 "Just some collected fixes for 3.14.  Nothing huge"

* emailed patches from Corey Minyard <minyard@acm.org>:
  ipmi: Cleanup error return
  ipmi: fix timeout calculation when bmc is disconnected
  ipmi: use USEC_PER_SEC instead of 1000000 for more meaningful
  ipmi: remove deprecated IRQF_DISABLED
2014-01-25 15:33:41 -08:00
Corey Minyard
d02b3709ff ipmi: Cleanup error return
Return proper errors for a lot of IPMI failure cases.  Also call
pci_disable_device when IPMI PCI devices are removed.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-25 15:31:58 -08:00
Xie XiuQi
e21404dc0a ipmi: fix timeout calculation when bmc is disconnected
Loading ipmi_si module while bmc is disconnected, we found the timeout
is longer than 5 secs.  Actually it takes about 3 mins and 20
secs.(HZ=250)

error message as below:
  Dec 12 19:08:59 linux kernel: IPMI BT: timeout in RD_WAIT [ ] 1 retries left
  Dec 12 19:08:59 linux kernel: BT: write 4 bytes seq=0x01 03 18 00 01
  [...]
  Dec 12 19:12:19 linux kernel: IPMI BT: timeout in RD_WAIT [ ]
  Dec 12 19:12:19 linux kernel: failed 2 retries, sending error response
  Dec 12 19:12:19 linux kernel: IPMI: BT reset (takes 5 secs)
  Dec 12 19:12:19 linux kernel: IPMI BT: flag reset [ ]

Function wait_for_msg_done() use schedule_timeout_uninterruptible(1) to
sleep 1 tick, so we should subtract jiffies_to_usecs(1) instead of 100
usecs from timeout.

Reported-by: Hu Shiyuan <hushiyuan@huawei.com>
Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-25 15:31:58 -08:00
Xie XiuQi
ccb3368cb4 ipmi: use USEC_PER_SEC instead of 1000000 for more meaningful
Use USEC_PER_SEC instead of 1000000, that making the later bugfix
more clearly.

Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-25 15:31:58 -08:00
Michael Opdenacker
aa5b2bab9c ipmi: remove deprecated IRQF_DISABLED
This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-25 15:31:58 -08:00
Linus Torvalds
2d2e7d195b spi: Updates for v3.14
A respun version of the merges for the pull request previously sent with
 a few additional fixes.  The last two merges were fixed up by hand since
 the branches have moved on and currently have the prior merge in them.
 
 Quite a busy release for the SPI subsystem, mostly in cleanups big and
 small scattered through the stack rather than anything else:
 
  - New driver for the Broadcom BC63xx HSSPI controller.
  - Fix duplicate device registration for ACPI.
  - Conversion of s3c64xx to DMAEngine (this pulls in platform and DMA
    changes upon which the transiton depends).
  - Some small optimisations to reduce the amount of time we hold locks
    in the datapath, eliminate some redundant checks and the size of a
    spi_transfer.
  - Lots of fixes, cleanups and general enhancements to drivers,
    especially the rspi and Atmel drivers.
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Merge tag 'spi-v3.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "A respun version of the merges for the pull request previously sent
  with a few additional fixes.  The last two merges were fixed up by
  hand since the branches have moved on and currently have the prior
  merge in them.

  Quite a busy release for the SPI subsystem, mostly in cleanups big and
  small scattered through the stack rather than anything else:

   - New driver for the Broadcom BC63xx HSSPI controller
   - Fix duplicate device registration for ACPI
   - Conversion of s3c64xx to DMAEngine (this pulls in platform and DMA
     changes upon which the transiton depends)
   - Some small optimisations to reduce the amount of time we hold locks
     in the datapath, eliminate some redundant checks and the size of a
     spi_transfer
   - Lots of fixes, cleanups and general enhancements to drivers,
     especially the rspi and Atmel drivers"

* tag 'spi-v3.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (112 commits)
  spi: core: Fix transfer failure when master->transfer_one returns positive value
  spi: Correct set_cs() documentation
  spi: Clarify transfer_one() w.r.t. spi_finalize_current_transfer()
  spi: Spelling s/finised/finished/
  spi: sc18is602: Convert to use bits_per_word_mask
  spi: Remove duplicate code to set default bits_per_word setting
  spi/pxa2xx: fix compilation warning when !CONFIG_PM_SLEEP
  spi: clps711x: Add MODULE_ALIAS to support module auto-loading
  spi: rspi: Add missing clk_disable() calls in error and cleanup paths
  spi: rspi: Spelling s/transmition/transmission/
  spi: rspi: Add support for specifying CPHA/CPOL
  spi/pxa2xx: initialize DMA channels to -1 to prevent inadvertent match
  spi: rspi: Add more QSPI register documentation
  spi: rspi: Add more RSPI register documentation
  spi: rspi: Remove dependency on DMAE for SHMOBILE
  spi/s3c64xx: Correct indentation
  spi: sh: Use spi_sh_clear_bit() instead of open-coded
  spi: bitbang: Grammar s/make to make/to make/
  spi: sh-hspi: Spelling s/recive/receive/
  spi: core: Improve tx/rx_nbits check comments
  ...
2014-01-25 13:20:36 -08:00
Linus Torvalds
15333539a9 regulator: Updates for v3.14
A respin of the merges in the previous pull request with one extra fix.
 A quiet release for the regulator API, quite a large number of small
 improvements all over but other than the addition of new drivers for the
 AS3722 and MAX14577 there is nothing of substantial non-local impact.
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Merge tag 'regulator-v3.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "A respin of the merges in the previous pull request with one extra
  fix.

  A quiet release for the regulator API, quite a large number of small
  improvements all over but other than the addition of new drivers for
  the AS3722 and MAX14577 there is nothing of substantial non-local
  impact"

* tag 'regulator-v3.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (47 commits)
  regulator: pfuze100-regulator: Improve dev_info() message
  regulator: pfuze100-regulator: Fix some checkpatch complaints
  regulator: twl: Fix checkpatch issue
  regulator: core: Fix checkpatch issue
  regulator: anatop-regulator: Remove unneeded memset()
  regulator: s5m8767: Update LDO index in s5m8767-regulator.txt
  regulator: as3722: set enable time for SD0/1/6
  regulator: as3722: detect SD0 low-voltage mode
  regulator: tps62360: Fix up a pointer-integer size mismatch warning
  regulator: anatop-regulator: Remove unneeded kstrdup()
  regulator: act8865: Fix build error when !OF
  regulator: act8865: register all regulators regardless of how many are used
  regulator: wm831x-dcdc: Remove unneeded 'err' label
  regulator: anatop-regulator: Add MODULE_ALIAS()
  regulator: act8865: fix incorrect devm_kzalloc for act8865
  regulator: act8865: Remove set_suspend_[en|dis]able implementation
  regulator: act8865: Remove unneeded regulator_unregister() calls
  regulator: s2mps11: Clean up redundant code
  regulator: tps65910: Simplify setting enable_mask for regulators
  regulator: act8865: add device tree binding doc
  ...
2014-01-25 13:19:10 -08:00
Linus Torvalds
bb1b64908f regmap: Updates for v3.14
Nothing terribly exciting with regmap this release, mainly a few small
 extensions to allow more devices to be supported:
 
  - Allow the bulk I/O APIs to be used with no-bus regmaps.
  - Support interrupt controllers with zero ack base.
  - Warning and spelling fixes.
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Merge tag 'regmap-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "Nothing terribly exciting with regmap this release, mainly a few small
  extensions to allow more devices to be supported:

   - Allow the bulk I/O APIs to be used with no-bus regmaps
   - Support interrupt controllers with zero ack base
   - Warning and spelling fixes"

* tag 'regmap-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: fix a couple of typos
  regmap: Allow regmap_bulk_write() to work for "no-bus" regmaps
  regmap: Allow regmap_bulk_read() to work for "no-bus" regmaps
  regmap: irq: Allow using zero value for ack_base
  regmap: Fix 'ret' would return an uninitialized value
2014-01-25 13:18:00 -08:00