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507744 commits

Author SHA1 Message Date
Sabrina Dubroca 8e199dfd82 ipv6: call ipv6_proxy_select_ident instead of ipv6_select_ident in udp6_ufo_fragment
Matt Grant reported frequent crashes in ipv6_select_ident when
udp6_ufo_fragment is called from openvswitch on a skb that doesn't
have a dst_entry set.

ipv6_proxy_select_ident generates the frag_id without using the dst
associated with the skb.  This approach was suggested by Vladislav
Yasevich.

Fixes: 0508c07f5e ("ipv6: Select fragment id during UFO segmentation if not set.")
Cc: Vladislav Yasevich <vyasevic@redhat.com>
Reported-by: Matt Grant <matt@mattgrant.net.nz>
Tested-by: Matt Grant <matt@mattgrant.net.nz>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 12:56:11 -04:00
Palik, Imre edafc132ba xen-netback: making the bandwidth limiter runtime settable
With the current netback, the bandwidth limiter's parameters are only
settable during vif setup time.  This patch register a watch on them, and
thus makes them runtime changeable.

When the watch fires, the timer is reset.  The timer's mutex is used for
fencing the change.

Cc: Anthony Liguori <aliguori@amazon.com>
Signed-off-by: Imre Palik <imrep@amazon.de>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 12:55:15 -04:00
David S. Miller 750f2f9165 Merge branch 'listener_refactor_part_14'
Eric Dumazet says:

====================
inet: tcp listener refactoring part 14

OK, we have serious patches here.

We get rid of the central timer handling SYNACK rtx,
which is killing us under even medium SYN flood.

We still use the listener specific hash table.

This will be done in next round ;)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 12:40:33 -04:00
Eric Dumazet becb74f0ac net: increase sk_[max_]ack_backlog
sk_ack_backlog & sk_max_ack_backlog were 16bit fields, meaning
listen() backlog was limited to 65535.

It is time to increase the width to allow much bigger backlog,
if admins change /proc/sys/net/core/somaxconn &
/proc/sys/net/ipv4/tcp_max_syn_backlog default values.

Tested:

echo 5000000 >/proc/sys/net/core/somaxconn
echo 5000000 >/proc/sys/net/ipv4/tcp_max_syn_backlog

Ran a SYNFLOOD test against a listener using listen(fd, 5000000)

myhost~# grep request_sock_TCP /proc/slabinfo
request_sock_TCP  4185642 4411940    304   13    1 : tunables   54   27    8 : slabdata 339380 339380      0

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 12:40:25 -04:00
Eric Dumazet fa76ce7328 inet: get rid of central tcp/dccp listener timer
One of the major issue for TCP is the SYNACK rtx handling,
done by inet_csk_reqsk_queue_prune(), fired by the keepalive
timer of a TCP_LISTEN socket.

This function runs for awful long times, with socket lock held,
meaning that other cpus needing this lock have to spin for hundred of ms.

SYNACK are sent in huge bursts, likely to cause severe drops anyway.

This model was OK 15 years ago when memory was very tight.

We now can afford to have a timer per request sock.

Timer invocations no longer need to lock the listener,
and can be run from all cpus in parallel.

With following patch increasing somaxconn width to 32 bits,
I tested a listener with more than 4 million active request sockets,
and a steady SYNFLOOD of ~200,000 SYN per second.
Host was sending ~830,000 SYNACK per second.

This is ~100 times more what we could achieve before this patch.

Later, we will get rid of the listener hash and use ehash instead.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 12:40:25 -04:00
Eric Dumazet 52452c5425 inet: drop prev pointer handling in request sock
When request sock are put in ehash table, the whole notion
of having a previous request to update dl_next is pointless.

Also, following patch will get rid of big purge timer,
so we want to delete a request sock without holding listener lock.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-20 12:40:25 -04:00
Thomas Graf a998f712f7 rhashtable: Round up/down min/max_size to ensure we respect limit
Round up min_size respectively round down max_size to the next power
of two to make sure we always respect the limit specified by the
user. This is required because we compare the table size against the
limit before we expand or shrink.

Also fixes a minor bug where we modified min_size in the params
provided instead of the copy stored in struct rhashtable.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-19 21:02:23 -04:00
Linus Torvalds b314acaccd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "An update to Synaptics driver that makes it usable with the 2015
  lineup from Lenovo"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Revert "Input: synaptics - use dmax in input_mt_assign_slots"
  Input: synaptics - remove X250 from the topbuttonpad list
  Input: synaptics - remove X1 Carbon 3rd gen from the topbuttonpad list
  Input: synaptics - re-route tracksticks buttons on the Lenovo 2015 series
  Input: synaptics - remove TOPBUTTONPAD property for Lenovos 2015
  Input: synaptics - retrieve the extended capabilities in query $10
  Input: synaptics - do not retrieve the board id on old firmwares
  Input: synaptics - handle spurious release of trackstick buttons
  Input: synaptics - fix middle button on Lenovo 2015 products
  Input: synaptics - skip quirks when post-2013 dimensions
  Input: synaptics - support min/max board id in min_max_pnpid_table
  Input: synaptics - remove obsolete min/max quirk for X240
  Input: synaptics - query min dimensions for fw v8.1
  Input: synaptics - log queried and quirked dimension values
  Input: synaptics - split synaptics_resolution(), query first
2015-03-19 16:43:10 -07:00
Linus Torvalds 1e744c938d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse fixes from Miklos Szeredi:
 "This fixes bugs in zero-copy splice to the fuse device"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: explicitly set /dev/fuse file's private_data
  fuse: set stolen page uptodate
  fuse: notify: don't move pages
2015-03-19 16:36:24 -07:00
Linus Torvalds e409ac3550 Merge branch 'overlayfs-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs fixes from Miklos Szeredi:
 "This fixes minor issues with the multi-layer update in v4.0"

* 'overlayfs-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
  ovl: upper fs should not be R/O
  ovl: check lowerdir amount for non-upper mount
  ovl: print error message for invalid mount options
2015-03-19 16:27:36 -07:00
Linus Torvalds 32dafb94a6 MMC core:
- Fix error path in mmc_pwrseq_simple_alloc()
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Merge tag 'mmc-v4.0-rc4' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC fix from Ulf Hansson:
 "MMC core: fix error path in mmc_pwrseq_simple_alloc()"

* tag 'mmc-v4.0-rc4' of git://git.linaro.org/people/ulf.hansson/mmc:
  mmc: pwrseq_simple: fix error path in mmc_pwrseq_simple_alloc
2015-03-19 16:18:30 -07:00
Linus Torvalds 01d62ee520 A set of pin control fixes for the v4.0 release cycle:
- Fix up consumer return values on pin control stubs.
 - Four patches fixing up the interrupt handling and
   sleep context save in the Baytrail driver.
 - Make default output directions work properly in the
   Cherryview driver.
 - Fix interrupt locking in the AT91 driver.
 - Fix setting interrupt generating lines as input in
   the sunxi driver.
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Merge tag 'pinctrl-v4.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "Here is a slew of pin control fixes I've accumulated for the v4.0
  kernel.  Nothing special, just driver fixes (mainly embedded Intel it
  seems) and a misunderstanding regarding the stub functions was
  reverted:

   - Fix up consumer return values on pin control stubs.
   - Four patches fixing up the interrupt handling and sleep context
     save in the Baytrail driver.
   - Make default output directions work properly in the Cherryview
     driver.
   - Fix interrupt locking in the AT91 driver.
   - Fix setting interrupt generating lines as input in the sunxi
     driver"

* tag 'pinctrl-v4.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: sun4i: GPIOs configured as irq must be set to input before reading
  pinctrl: at91: move lock/unlock_as_irq calls into request/release
  pinctrl: update direction_output function of cherryview driver
  pinctrl: baytrail: Save pin context over system sleep
  pinctrl: baytrail: Rework interrupt handling
  pinctrl: baytrail: Clear interrupt triggering from pins that are in GPIO mode
  pinctrl: baytrail: Relax GPIO request rules
  Revert "pinctrl: consumer: use correct retval for placeholder functions"
2015-03-19 15:52:28 -07:00
Linus Torvalds 18eda522c2 nios2 fixes for v4.0-rc5
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Merge tag 'nios2-fixes-v4.0-rc5' of git://git.rocketboards.org/linux-socfpga-next

Pull two arch/nios2 fixes from Ley Foon Tan:
 - Remove ucontext.h from exported arch headers
 - nios2: mm: do not invoke OOM killer on kernel fault OOM

* tag 'nios2-fixes-v4.0-rc5' of git://git.rocketboards.org/linux-socfpga-next:
  nios2: mm: do not invoke OOM killer on kernel fault OOM
  nios2: Remove ucontext.h from exported arch headers
2015-03-19 15:24:28 -07:00
Shannon Nelson 91a0f93056 i40e: add NVM update events to AQ clean
Quit complaining about a couple of events that we actually expect to see
during an NVM update.

Reported-by: Stefan Assmann <sassmann@redhat.com>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-19 17:52:04 -04:00
Linus Torvalds a93fc153b1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide
Pull IDE fix from David Miller:
 "Just one fix to convert a by-hand conversion of jiffies to msecs, from
  Nicholas McGuire"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide:
  ide_tape: convert jiffies with jiffies_to_msecs
2015-03-19 13:16:49 -07:00
Linus Torvalds 22283c8260 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller:

 1) Some command cases of semtimedop() not even handled due to miscoded
    comparison on sparc64.  From Rob Gardner.

 2) Due to two bugs, /proc/kcore wan't working properly on sparc.

 3) Make sure fatal traps stop all running cpus, from Dave Kleikamp.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: Fix /proc/kcore
  sparc: semtimedop() unreachable due to comparison error
  sparc: io_64.h: Replace io function-link macros
  sparc64: fatal trap should stop all cpus
  arch: sparc: kernel: starfire.c: Remove unused function
  arch: sparc: kernel: traps_64.c: Remove some unused functions
2015-03-19 13:11:55 -07:00
Marcelo Ricardo Leitner 446981e5fc tipc: fix build issue when building without IPv6
We can't directly call ipv6_sock_mc_join() but should use the stub
instead and protect it around IS_ENABLED.

Fixes: d0f91938be ("tipc: add ip/udp media type")
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-19 16:06:27 -04:00
David S. Miller d15b1de46f Merge branch 'cxgb4-next'
Hariprasad Shenai says:

====================
Add Device ID and make device ID table const

This patch series adds new device ID and makes device ID table const

The patches series is created against 'net-next' tree.
And includes patches on cxgb4 and csiostor driver.

We have included all the maintainers of respective drivers. Kindly review the
change and let us know in case of any review comments.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-19 15:30:25 -04:00
Hariprasad Shenai 768ffc66b4 cxgb4/cxgb4vf/csiostor: Make PCI Device ID Tables be "const"
Make PCI Device ID Tables be "const" to move them out of the data segment and
remove a redundant check on CH_PCI_DEVICE_ID_TABLE_DEFINE_BEGIN in
t4_pci_id_tbl.h to guard the contents of the include file.

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-19 15:30:21 -04:00
Hariprasad Shenai 933e0db118 cxgb4: Add device ID for new adapter
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-19 15:30:20 -04:00
David S. Miller 970282d0e1 Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
Johan Hedberg says:

====================
pull request: bluetooth-next 2015-03-19

This wont the last 4.1 bluetooth-next pull request, but we've piled up
enough patches in less than a week that I wanted to save you from a
single huge "last-minute" pull somewhere closer to the merge window.

The main changes are:

 - Simultaneous LE & BR/EDR discovery support for HW that can do it
 - Complete LE OOB pairing support
 - More fine-grained mgmt-command access control (normal user can now do
   harmless read-only operations).
 - Added RF power amplifier support in cc2520 ieee802154 driver
 - Some cleanups/fixes in ieee802154 code

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

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-19 15:18:04 -04:00
Linus Torvalds 47226fe1b5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Fix packet header offset calculation in _decode_session6(), from
    Hajime Tazaki.

 2) Fix route leak in error paths of xfrm_lookup(), from Huaibin Wang.

 3) Be sure to clear state properly when scans fail in iwlwifi mvm code,
    from Luciano Coelho.

 4) iwlwifi tries to stop scans that aren't actually running, also from
    Luciano Coelho.

 5) mac80211 should drop mesh frames that are not encrypted, fix from
    Bob Copeland.

 6) Add new device ID to b43 wireless driver for BCM432228 chips, from
    Rafał Miłecki.

 7) Fix accidental addition of members after variable sized array in
    struct tc_u_hnode, from WANG Cong.

 8) Don't re-enable interrupts until after we call napi_complete() in
    ibmveth and WIZnet drivers, frm Yongbae Park.

 9) Fix regression in vlan tag handling of fec driver, from Fugang Duan.

10) If a network namespace change fails during rtnl_newlink(), we don't
    unwind the device registry properly.

11) Fix two TCP regressions, from Neal Cardwell:
  - Don't allow snd_cwnd_cnt to accumulate huge values due to missing
    test in tcp_cong_avoid_ai().
  - Restore CUBIC back to advancing cwnd by 1.5x packets per RTT.

12) Fix performance regression in xne-netback involving push TX
    notifications, from David Vrabel.

13) __skb_tstamp_tx() can be called with a NULL sk pointer, do not
    dereference blindly.  From Willem de Bruijn.

14) Fix potential stack overflow in RDS protocol stack, from Arnd
    Bergmann.

15) VXLAN_VID_MASK used incorrectly in new remote checksum offload
    support of VXLAN driver.  Fix from Alexey Kodanev.

16) Fix too small netlink SKB allocation in inet_diag layer, from Eric
    Dumazet.

17) ieee80211_check_combinations() does not count interfaces correctly,
    from Andrei Otcheretianski.

18) Hardware feature determination in bxn2x driver references a piece of
    software state that actually isn't initialized yet, fix from Michal
    Schmidt.

19) inet_csk_wait_for_connect() needs a sched_annotate_sleep()
    annoation, from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (56 commits)
  Revert "net: cx82310_eth: use common match macro"
  net/mlx4_en: Set statistics bitmap at port init
  IB/mlx4: Saturate RoCE port PMA counters in case of overflow
  net/mlx4_en: Fix off-by-one in ethtool statistics display
  IB/mlx4: Verify net device validity on port change event
  act_bpf: allow non-default TC_ACT opcodes as BPF exec outcome
  Revert "smc91x: retrieve IRQ and trigger flags in a modern way"
  inet: Clean up inet_csk_wait_for_connect() vs. might_sleep()
  ip6_tunnel: fix error code when tunnel exists
  netdevice.h: fix ndo_bridge_* comments
  bnx2x: fix encapsulation features on 57710/57711
  mac80211: ignore CSA to same channel
  nl80211: ignore HT/VHT capabilities without QoS/WMM
  mac80211: ask for ECSA IE to be considered for beacon parse CRC
  mac80211: count interfaces correctly for combination checks
  isdn: icn: use strlcpy() when parsing setup options
  rxrpc: bogus MSG_PEEK test in rxrpc_recvmsg()
  caif: fix MSG_OOB test in caif_seqpkt_recvmsg()
  bridge: reset bridge mtu after deleting an interface
  can: kvaser_usb: Fix tx queue start/stop race conditions
  ...
2015-03-19 11:19:44 -07:00
David S. Miller c9bdc0dde1 Merge branch 'tipc-next'
Erik Hugne says:

====================
tipc: small bugfix an support for datagram connect()

Most notable in this series is patch#3 that allows programs to associate
a tipc address with a connectionless (RDM/DGRAM) socket.

v2: Fix indent issue in patch#3
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-19 12:26:01 -04:00
Erik Hugne f2f8036e39 tipc: add support for connect() on dgram/rdm sockets
Following the example of ip4_datagram_connect, we store the
address in the socket structure for dgram/rdm sockets and use
that as the default destination for subsequent send() calls.
It is allowed to connect to any address types, and the behaviour
of send() will be the same as a normal sendto() with this address
provided. Binding to an AF_UNSPEC address clears the association.

Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-19 12:25:54 -04:00
Erik Hugne 3bd88ee7a2 tipc: do not report -EHOSTUNREACH for failed local delivery
Since commit 1186adf7df ("tipc: simplify message forwarding and
rejection in socket layer") -EHOSTUNREACH is propagated back to
the sending process if we fail to deliver the message to another
socket local to the node.
This is wrong, host unreachable should only be reported when the
destination port/name does not exist in the cluster, and that
check is always done before sending the message. Also, this
introduces inconsistent sendmsg() behavior for local/remote
destinations. Errors occurring on the receiving side should not
trickle up to the sender. If message delivery fails TIPC should
either discard the packet or reject it back to the sender based
on the destination droppable option.

Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-19 12:25:54 -04:00
Erik Hugne 18d6c58415 tipc: remove redundant call to tipc_node_remove_conn
tipc_node_remove_conn may be called twice if shutdown() is
called on a socket that have messages in the receive queue.
Calling this function twice does no harm, but is unnecessary
and we remove the redundant call.

Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Acked-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-19 12:25:54 -04:00
Nicolas Iooss ea6edfbcef mac802154: fix typo in header guard
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Fixes: b6eea9ca35 ("mac802154: introduce driver-ops header")
Acked-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-03-19 15:32:22 +01:00
Tom Van Braeckel 94e4fe2cab fuse: explicitly set /dev/fuse file's private_data
The misc subsystem (which is used for /dev/fuse) initializes private_data to
point to the misc device when a driver has registered a custom open file
operation, and initializes it to NULL when a custom open file operation has
*not* been provided.

This subtle quirk is confusing, to the point where kernel code registers
*empty* file open operations to have private_data point to the misc device
structure. And it leads to bugs, where the addition or removal of a custom open
file operation surprisingly changes the initial contents of a file's
private_data structure.

So to simplify things in the misc subsystem, a patch [1] has been proposed to
*always* set the private_data to point to the misc device, instead of only
doing this when a custom open file operation has been registered.

But before this patch can be applied we need to modify drivers that make the
assumption that a misc device file's private_data is initialized to NULL
because they didn't register a custom open file operation, so they don't rely
on this assumption anymore. FUSE uses private_data to store the fuse_conn and
errors out if this is not initialized to NULL at mount time.

Hence, we now set a file's private_data to NULL explicitly, to be independent
of whatever value the misc subsystem initializes it to by default.

[1] https://lkml.org/lkml/2014/12/4/939

Reported-by: Giedrius Statkevicius <giedriuswork@gmail.com>
Reported-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Tom Van Braeckel <tomvanbraeckel@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2015-03-19 15:29:22 +01:00
NeilBrown 6b7a783ebd mmc: pwrseq_simple: fix error path in mmc_pwrseq_simple_alloc
The current error-path code (when gpiod_get_index() reports
an error) can never free pwrseq->reset_gpios[0], but might
try to tree pwrseq->reset_gpios[-1], which has unfortunate
consequences.

Signed-off-by: NeilBrown <neil@brown.name>
Fixes: 934f1f4833
Acked-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reported-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
2015-03-19 11:26:35 +01:00
Nicholas Mc Guire 8421596407 ide_tape: convert jiffies with jiffies_to_msecs
Use jiffies_to_msecs for converting jiffies as it handles all of the corner
cases reliably and also helps readability. The printk format is fixed up
as jiffies_to_msecs returns unsigned int not unsigned long.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 23:25:57 -04:00
Wu Fengguang de1cf8a7d7 net/mlx4_en: mlx4_en_set_tx_maxrate() can be static
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 23:21:41 -04:00
Jörg Thalheim af615762e9 bridge: add ageing_time, stp_state, priority over netlink
Signed-off-by: Jörg Thalheim <joerg@higgsboson.tk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 23:21:06 -04:00
David S. Miller 99c4a26a15 net: Fix high overhead of vlan sub-device teardown.
When a networking device is taken down that has a non-trivial number
of VLAN devices configured under it, we eat a full synchronize_net()
for every such VLAN device.

This is because of the call chain:

	NETDEV_DOWN notifier
	--> vlan_device_event()
		--> dev_change_flags()
		--> __dev_change_flags()
		--> __dev_close()
		--> __dev_close_many()
		--> dev_deactivate_many()
			--> synchronize_net()

This is kind of rediculous because we already have infrastructure for
batching doing operation X to a list of net devices so that we only
incur one sync.

So make use of that by exporting dev_close_many() and adjusting it's
interfaace so that the caller can fully manage the batch list.  Use
this in vlan_device_event() and all the overhead goes away.

Reported-by: Salam Noureddine <noureddine@arista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 22:52:56 -04:00
Eric Dumazet 738e6d30d3 inet: add a schedule point in inet_twsk_purge()
On a large hash table, we can easily spend seconds to
walk over all entries. Add a cond_resched() to yield
cpu if necessary.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 22:38:13 -04:00
Ondrej Zary 8d006e0105 Revert "net: cx82310_eth: use common match macro"
This reverts commit 11ad714b98 because
it breaks cx82310_eth.

The custom USB_DEVICE_CLASS macro matches
bDeviceClass, bDeviceSubClass and bDeviceProtocol
but the common USB_DEVICE_AND_INTERFACE_INFO matches
bInterfaceClass, bInterfaceSubClass and bInterfaceProtocol instead, which are
not specified.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 22:37:38 -04:00
David Ahern db19170bc0 rocker: add support for phys_port_name
Implement the phys_port_name operation. Port names are pulled from the
rocker hardware model in qemu and default to the qemu name + port id.
e.g.,

sw1p1: flags=4098<BROADCAST,MULTICAST>  mtu 1500
        ether 52:54:00:12:35:01  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

where 'sw1' comes from the qemu command line -device rocker,name=sw1, and
'p1' is port 1.

Patch is adapted from Scott's phys_port_id patch.

Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Scott Feldman <sfeldma@gmail.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 22:30:35 -04:00
David Ahern db24a9044e net: add support for phys_port_name
Similar to port id allow netdevices to specify port names and export
the name via sysfs. Drivers can implement the netdevice operation to
assist udev in having sane default names for the devices using the
rule:

$ cat /etc/udev/rules.d/80-net-setup-link.rules
SUBSYSTEM=="net", ACTION=="add", ATTR{phys_port_name}!="",
NAME="$attr{phys_port_name}"

Use of phys_name versus phys_id was suggested-by Jiri Pirko.

Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 22:30:35 -04:00
David S. Miller 3c08158e0e sparc: Fix /proc/kcore
/proc/kcore investigates the "System RAM" elements in /proc/iomem to
initialize it's memory tables.  Therefore we have to register them
before it tries to do so.  kcore uses device_initcall() so let's
use arch_initcall() for the registry.

Also we need ARCH_PROC_KCORE_TEXT to get the virtual addresses of
the kernel image correct.

Reported-by: David Ahern <david.ahern@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 19:15:28 -07:00
Marcelo Ricardo Leitner 56ef9c909b vxlan: Move socket initialization to within rtnl scope
Currently, if a multicast join operation fail, the vxlan interface will
be UP but not functional, without even a log message informing the user.

Now that we can grab socket lock after already having rntl, we don't
need to defer socket creation and multicast operations. By not deferring
we can do proper error reporting to the user through ip exit code.

This patch thus removes all deferred work that vxlan had and put it back
inline. Now the socket will only be created, bound and join multicast
group when one bring the interface up, and will undo all that as soon as
one put the interface down.

As vxlan_sock_hold() is not used after this patch, it was removed too.

Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 22:05:10 -04:00
Marcelo Ricardo Leitner 54ff9ef36b ipv4, ipv6: kill ip_mc_{join, leave}_group and ipv6_sock_mc_{join, drop}
in favor of their inner __ ones, which doesn't grab rtnl.

As these functions need to operate on a locked socket, we can't be
grabbing rtnl by then. It's too late and doing so causes reversed
locking.

So this patch:
- move rtnl handling to callers instead while already fixing some
  reversed locking situations, like on vxlan and ipvs code.
- renames __ ones to not have the __ mark:
  __ip_mc_{join,leave}_group -> ip_mc_{join,leave}_group
  __ipv6_sock_mc_{join,drop} -> ipv6_sock_mc_{join,drop}

Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 22:05:09 -04:00
Marcelo Ricardo Leitner baf606d9c9 ipv4,ipv6: grab rtnl before locking the socket
There are some setsockopt operations in ipv4 and ipv6 that are grabbing
rtnl after having grabbed the socket lock. Yet this makes it impossible
to do operations that have to lock the socket when already within a rtnl
protected scope, like ndo dev_open and dev_stop.

We normally take coarse grained locks first but setsockopt inverted that.

So this patch invert the lock logic for these operations and makes
setsockopt grab rtnl if it will be needed prior to grabbing socket lock.

Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 22:05:09 -04:00
David S. Miller fdf9ef8999 Merge branch 'listen_refactor_part_13'
Eric Dumazet says:

====================
inet: tcp listener refactoring, part 13

inet_hash functions are in a bad state : Too much IPv6/IPv4 copy/pasting.

Lets refactor a bit.

Idea is that we do not want to have an equivalent of inet_csk(sk)->icsk_af_ops
for request socks in order to be able to use the right variant.

In this patch series, I started to let IPv6/IPv4 converge to common helpers.

Idea is to use ipv6_addr_set_v4mapped() even for AF_INET sockets, so that
we can test
       if (sk->sk_family == AF_INET6 &&
           !ipv6_addr_v4mapped(&sk->sk_v6_daddr))
to tell if we deal with an IPv6 socket, or IPv4 one, at least in slow paths.

Ideally, we could save 8 bytes per struct sock_common, if we
alias skc_daddr & skc_rcv_saddr to skc_v6_daddr[3]/skc_v6_rcv_saddr[3].
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 22:00:44 -04:00
Eric Dumazet 08d2cc3b26 inet: request sock should init IPv6/IPv4 addresses
In order to be able to use sk_ehashfn() for request socks,
we need to initialize their IPv6/IPv4 addresses.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 22:00:35 -04:00
Eric Dumazet b4d6444ea3 inet: get rid of last __inet_hash_connect() argument
We now always call __inet_hash_nolisten(), no need to pass it
as an argument.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 22:00:35 -04:00
Eric Dumazet 77a6a471bc ipv6: get rid of __inet6_hash()
We can now use inet_hash() and __inet_hash() instead of private
functions.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 22:00:35 -04:00
Eric Dumazet d1e559d0b1 inet: add IPv6 support to sk_ehashfn()
Intent is to converge IPv4 & IPv6 inet_hash functions to
factorize code.

IPv4 sockets initialize sk_rcv_saddr and sk_v6_daddr
in this patch, thanks to new sk_daddr_set() and sk_rcv_saddr_set()
helpers.

__inet6_hash can now use sk_ehashfn() instead of a private
inet6_sk_ehashfn() and will simply use __inet_hash() in a
following patch.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 22:00:34 -04:00
Eric Dumazet 5b441f76f1 net: introduce sk_ehashfn() helper
Goal is to unify IPv4/IPv6 inet_hash handling, and use common helpers
for all kind of sockets (full sockets, timewait and request sockets)

inet_sk_ehashfn() becomes sk_ehashfn() but still only copes with IPv4

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 22:00:34 -04:00
Eric Dumazet 6eada0110c netns: constify net_hash_mix() and various callers
const qualifiers ease code review by making clear
which objects are not written in a function.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 22:00:34 -04:00
David S. Miller 2fc800f2c5 Merge branch 'mlx4-net'
Or Gerlitz says:

====================
mlx4 driver fixes for 4.0-rc

Just few small fixes for the 4.0 rc cycle.

The fix from Moni addresses an issue from 4.0-rc1 so we
just need it for net.

Eran's fix for off-by-one should go to 3.19.y too.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 15:17:17 -04:00
Eran Ben Elisha 39de961a4a net/mlx4_en: Set statistics bitmap at port init
Port statistics bitmap will now be initialized at port init.  Even before
starting the port, statistics are visible to the user and must be properly masked.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-18 15:17:11 -04:00