Commit graph

38005 commits

Author SHA1 Message Date
Ingo Molnar
fb869b6e91 sched/wait: Clean up wait.h details a bit
Since we are changing wait.h profoundly, use the opportunity to:

 - add a sentence to explain what this file is about
 - remove whitespace noise
 - prettify weird looking line break fixup attempts
 - standardize type definition and initialization sequences
 - use consistent style details

No code is changed.

Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-O8dIie5swnctqpupakatvqyq@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 13:57:19 +02:00
Peter Zijlstra
35a2af94c7 sched/wait: Make the __wait_event*() interface more friendly
Change all __wait_event*() implementations to match the corresponding
wait_event*() signature for convenience.

In particular this does away with the weird 'ret' logic. Since there
are __wait_event*() users this requires we update them too.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092529.042563462@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 10:16:25 +02:00
Peter Zijlstra
ebdc195f2e sched/wait: Collapse __wait_event_hrtimeout()
While not a whole-sale replacement like the others we can still reduce
the size of __wait_event_hrtimeout() considerably by noting that the
actual core of __wait_event_hrtimeout() is identical to what
___wait_event() generates.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.972793648@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 10:16:22 +02:00
Peter Zijlstra
cf7361fd96 sched/wait: Collapse __wait_event_killable()
Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.898691966@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 10:16:21 +02:00
Peter Zijlstra
0d1e1c8a43 sched/wait: Collapse __wait_event_interruptible_tty()
Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.831085521@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 10:16:20 +02:00
Peter Zijlstra
a1dc6852ac sched/wait: Collapse __wait_event_interruptible_lock_irq_timeout()
Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.759956109@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 10:16:20 +02:00
Peter Zijlstra
8fbd88fa17 sched/wait: Collapse __wait_event_interruptible_lock_irq()
Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.686006009@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 10:16:19 +02:00
Peter Zijlstra
13cb5042a4 sched/wait: Collapse __wait_event_lock_irq()
Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.612813379@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 10:14:50 +02:00
Peter Zijlstra
48c2521717 sched/wait: Collapse __wait_event_interruptible_exclusive()
Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.541716442@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 10:14:49 +02:00
Peter Zijlstra
c2ebb1fb4e sched/wait: Collapse __wait_event_interruptible_timeout()
Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.469616907@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 10:14:49 +02:00
Peter Zijlstra
f13f4c41c9 sched/wait: Collapse __wait_event_interruptible()
Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.396949919@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 10:14:48 +02:00
Peter Zijlstra
ddc1994b82 sched/wait: Collapse __wait_event_timeout()
Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.325264677@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 10:14:47 +02:00
Peter Zijlstra
854267f438 sched/wait: Collapse __wait_event()
Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.254863348@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 10:14:46 +02:00
Peter Zijlstra
41a1431b17 sched/wait: Introduce ___wait_event()
There's far too much duplication in the __wait_event macros; in order
to fix this introduce ___wait_event() a macro with the capability to
replace most other macros.

With the previous patches changing the various __wait_event*()
implementations to be more uniform; we can now collapse the lot
without also changing generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.181897111@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 10:14:46 +02:00
Peter Zijlstra
bb632bc449 sched/wait: Change the wait_exclusive control flow
Purely a preparatory patch; it changes the control flow to match what
will soon be generated by generic code so that that patch can be a
unity transform.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.107994763@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 10:14:45 +02:00
Peter Zijlstra
2953ef246b sched/wait: Change timeout logic
Commit 4c663cf ("wait: fix false timeouts when using
wait_event_timeout()") introduced an additional condition check after
a timeout but there's a few issues;

 - it forgot one site
 - it put the check after the main loop; not at the actual timeout
   check.

Cure both; by wrapping the condition (as suggested by Oleg), this
avoids double evaluation of 'condition' which could be quite big.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.028892896@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 10:14:44 +02:00
Peter Zijlstra
2f2a2b60ad sched/wait: Make the signal_pending() checks consistent
There's two patterns to check signals in the __wait_event*() macros:

  if (!signal_pending(current)) {
	schedule();
	continue;
  }
  ret = -ERESTARTSYS;
  break;

And the more natural:

  if (signal_pending(current)) {
	ret = -ERESTARTSYS;
	break;
  }
  schedule();

Change them all into the latter form.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092527.956416254@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 10:14:44 +02:00
Andi Kleen
fdfbbd07e9 perf: Add generic transaction flags
Add a generic qualifier for transaction events, as a new sample
type that returns a flag word. This is particularly useful
for qualifying aborts: to distinguish aborts which happen
due to asynchronous events (like conflicts caused by another
CPU) versus instructions that lead to an abort.

The tuning strategies are very different for those cases,
so it's important to distinguish them easily and early.

Since it's inconvenient and inflexible to filter for this
in the kernel we report all the events out and allow
some post processing in user space.

The flags are based on the Intel TSX events, but should be fairly
generic and mostly applicable to other HTM architectures too. In addition
to various flag words there's also reserved space to report an
program supplied abort code. For TSX this is used to distinguish specific
classes of aborts, like a lock busy abort when doing lock elision.

Flags:

Elision and generic transactions 		   (ELISION vs TRANSACTION)
(HLE vs RTM on TSX; IBM etc.  would likely only use TRANSACTION)
Aborts caused by current thread vs aborts caused by others (SYNC vs ASYNC)
Retryable transaction				   (RETRY)
Conflicts with other threads			   (CONFLICT)
Transaction write capacity overflow		   (CAPACITY WRITE)
Transaction read capacity overflow		   (CAPACITY READ)

Transactions implicitely aborted can also return an abort code.
This can be used to signal specific events to the profiler. A common
case is abort on lock busy in a RTM eliding library (code 0xff)
To handle this case we include the TSX abort code

Common example aborts in TSX would be:

- Data conflict with another thread on memory read.
                                      Flags: TRANSACTION|ASYNC|CONFLICT
- executing a WRMSR in a transaction. Flags: TRANSACTION|SYNC
- HLE transaction in user space is too large
                                      Flags: ELISION|SYNC|CAPACITY-WRITE

The only flag that is somewhat TSX specific is ELISION.

This adds the perf core glue needed for reporting the new flag word out.

v2: Add MEM/MISC
v3: Move transaction to the end
v4: Separate capacity-read/write and remove misc
v5: Remove _SAMPLE. Move abort flags to 32bit. Rename
    transaction to txn
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1379688044-14173-2-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 10:06:08 +02:00
Peter Zijlstra
9886167d20 perf: Fix perf_pmu_migrate_context
While auditing the list_entry usage due to a trinity bug I found that
perf_pmu_migrate_context violates the rules for
perf_event::event_entry.

The problem is that perf_event::event_entry is a RCU list element, and
hence we must wait for a full RCU grace period before re-using the
element after deletion.

Therefore the usage in perf_pmu_migrate_context() which re-uses the
entry immediately is broken. For now introduce another list_head into
perf_event for this specific usage.

This doesn't actually fix the trinity report because that never goes
through this code.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-mkj72lxagw1z8fvjm648iznw@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-04 09:58:53 +02:00
Weijie Yang
5b8802143a fs/debugfs: add declaration for no CONFIG_DEBUG_FS
Two function declarations are absence if not define CONFIG_DEBUG_FS
in include/linux/debugfs.h

Signed-off-by: Weijie Yang <weijie.yang@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-03 16:14:12 -07:00
Roger Quadros
0bb85dc2d3 usb: phy: omap: get rid of omap_get_control_dev()
This function was preventing us from supporting multiple
instances. Get rid of it. Since we support DT boots only,
users can get the control device phandle from the DT node.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-03 15:47:31 -07:00
Roger Quadros
8934d3e4d0 usb: musb: omap2430: Don't use omap_get_control_dev()
omap_get_control_dev() is being deprecated as it doesn't support
multiple instances. As control device is present only from OMAP4
onwards which supports DT only, we use phandles to get the
reference to the control device.

Also get rid of "ti,has-mailbox" property as it is redundant and
we can determine that from whether "ctrl-module" property is present
or not. Get rid of has_mailbox from musb_hdrc_platform_data as well.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-03 15:47:31 -07:00
Roger Quadros
6cb9310a32 usb: phy: omap: Add new device types and remove omap_control_usb3_phy_power()
Add support for new device types and in the process rid of "ti,type"
device tree property. The correct type of device will be determined
from the compatible string instead.

Introduce a compatible string for each device type. At the moment
we support 4 types OTGHS, USB2, PIPE3 (e.g. USB3) and DRA7USB2.

Update DT binding information to reflect these changes.

Also get rid of omap_control_usb3_phy_power(). Just one function
i.e. omap_control_usb_phy_power() will now take care of all PHY types.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-03 15:47:30 -07:00
Roger Quadros
4fd06af96b usb: phy: omap-control: Get rid of platform data
omap-control device is present from OMAP4 onwards which
support device tree boots only. So get rid of platform data.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-03 15:47:30 -07:00
Thomas Pugliese
4ae1a5bd3f usb: wusbcore: Add isoc transfer type enum and packet definitions
This patch adds transfer type enum and packet definitions for
WA_XFER_ISO_PACKET_INFO and WA_XFER_ISO_PACKET_STATUS packets.

It also changes instances of __attribute__((packed)) to __packed to make
checkpatch.pl happy.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-03 15:46:26 -07:00
Lars-Peter Clausen
0acc2b3213 i2c: Remove redundant 'driver' field from the i2c_client struct
The 'driver' field of the i2c_client struct is redundant. The same data can be
accessed through to_i2c_driver(client->dev.driver). The generated code for both
approaches in more or less the same.

E.g. on ARM the expression client->driver->command(...) generates

		...
		ldr     r3, [r0, #28]
		ldr     r3, [r3, #32]
		blx     r3
		...

and the expression to_i2c_driver(client->dev.driver)->command(...) generates

		...
		ldr     r3, [r0, #160]
    	ldr     r3, [r3, #-4]
    	blx     r3
		...

Other architectures will generate similar code.

All users of the 'driver' field outside of the I2C core have already been
converted. So this only leaves the core itself. This patch converts the
remaining few users in the I2C core and then removes the 'driver' field from the
i2c_client struct.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-10-03 22:28:31 +02:00
Eric Dumazet
5080546682 inet: consolidate INET_TW_MATCH
TCP listener refactoring, part 2 :

We can use a generic lookup, sockets being in whatever state, if
we are sure all relevant fields are at the same place in all socket
types (ESTABLISH, TIME_WAIT, SYN_RECV)

This patch removes these macros :

 inet_addrpair, inet_addrpair, tw_addrpair, tw_portpair

And adds :

 sk_portpair, sk_addrpair, sk_daddr, sk_rcv_saddr

Then, INET_TW_MATCH() is really the same than INET_MATCH()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-03 15:33:35 -04:00
Mike Travis
8daaa5f826 kdb: Add support for external NMI handler to call KGDB/KDB
This patch adds a kgdb_nmicallin() interface that can be used by
external NMI handlers to call the KGDB/KDB handler.  The primary
need for this is for those types of NMI interrupts where all the
CPUs have already received the NMI signal.  Therefore no
send_IPI(NMI) is required, and in fact it will cause a 2nd
unhandled NMI to occur. This generates the "Dazed and Confuzed"
messages.

Since all the CPUs are getting the NMI at roughly the same time,
it's not guaranteed that the first CPU that hits the NMI handler
will manage to enter KGDB and set the dbg_master_lock before the
slaves start entering. The new argument "send_ready" was added
for KGDB to signal the NMI handler to release the slave CPUs for
entry into KGDB.

Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Jason Wessel <jason.wessel@windriver.com>
Reviewed-by: Dimitri Sivanich <sivanich@sgi.com>
Reviewed-by: Hedi Berriche <hedi@sgi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Link: http://lkml.kernel.org/r/20131002151417.928886849@asylum.americas.sgi.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-03 18:47:54 +02:00
Lars-Peter Clausen
05071aa864 spi: Add a spi_w8r16be() helper
This patch adds a new spi_w8r16be() helper, which is similar to spi_w8r16()
except that it converts the read data word from big endian to native endianness
before returning it. The reason for introducing this new helper is that for SPI
slave devices it is quite common that the read 16 bit data word is in big
endian. So users of spi_w8r16() have to convert the result to native endianness
manually. A second reason is that in this case the endianness of the return
value of spi_w8r16() depends on its sign. If it is negative (i.e. a error code)
it is already in native endianness, if it is positive it is in big endian. The
sparse code checker doesn't like this kind of mixed endianness and special
annotations are necessary to keep it quiet (E.g. casting to be16 using __force).
Doing the conversion to native endianness in the helper function does not
require such annotations since we are not mixing different endiannesses in the
same variable.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2013-10-03 13:52:03 +01:00
Ingo Molnar
68e9074028 Merge branch 'clockevents/3.13' of git://git.linaro.org/people/dlezcano/linux into timers/core
Pull (mostly) ARM clocksource driver updates from Daniel Lezcano:

" - Soren Brinkmann added FEAT_PERCPU to a clock device when it is local
    per cpu. This feature prevents the clock framework to choose a per cpu
    timer as a broadcast timer. This problem arised when the ARM global
    timer is used when switching to the broadcast timer which is the case
    now on Xillinx with its cpuidle driver.

  - Stephen Boyd extended the generic sched_clock code to support 64bit
    counters and removes the setup_sched_clock deprecation, as that causes
    lots of warnings since there's still users in the arch/arm tree. He
    added also the CLOCK_SOURCE_SUSPEND_NONSTOP flag on the architected
    timer as they continue counting during suspend.

  - Uwe Kleine-König added some missing __init sections and consolidated the
    code by moving the of_node_put call from the drivers to the function
    clocksource_of_init. "

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-03 07:57:02 +02:00
Ingo Molnar
6c09f6d830 Linux 3.12-rc3
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Merge tag 'v3.12-rc3' into timers/core

Merge Linux 3.12-rc3 - refresh the tree with the latest fixes before merging new bits.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-10-03 07:52:21 +02:00
Denis Kirjanov
0b3d8e087b include/linux/skbuff.h: move CONFIG_XFRM check inside the skb_sec_path()
And thus we have only one function definition

Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-02 16:50:40 -04:00
stephen hemminger
5bc3db5c9c tc: export tc_defact.h to userspace
Jamal sent patch to add tc user simple actions to iproute2
but required header was not being exported.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-02 16:39:11 -04:00
Hauke Mehrtens
4bcef89f0c ssb: provide phy address for Gigabit Ethernet driver
Add a function to provide the phy address which should be used to the
Gigabit Ethernet driver connected to ssb.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-02 15:40:57 -04:00
Soren Brinkmann
3713c0cfd0 clockchips: Add FEAT_PERCPU clockevent flag
Add the flag CLOCK_EVT_FEAT_PERCPU which is supposed to be set for per
cpu clockevent devices.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
2013-10-02 11:33:23 +02:00
Trond Myklebust
99875249bf NFSv4: Ensure that we disable the resend timeout for NFSv4
The spec states that the client should not resend requests because
the server will disconnect if it needs to drop an RPC request.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-10-01 18:22:11 -04:00
Trond Myklebust
8a19a0b6cb SUNRPC: Add RPC task and client level options to disable the resend timeout
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-10-01 18:22:11 -04:00
Trond Myklebust
90051ea774 SUNRPC: Clean up - convert xprt_prepare_transmit to return a bool
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-10-01 18:22:11 -04:00
David S. Miller
4fbef95af4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/ethernet/emulex/benet/be.h
	drivers/net/usb/qmi_wwan.c
	drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
	include/net/netfilter/nf_conntrack_synproxy.h
	include/net/secure_seq.h

The conflicts are of two varieties:

1) Conflicts with Joe Perches's 'extern' removal from header file
   function declarations.  Usually it's an argument signature change
   or a function being added/removed.  The resolutions are trivial.

2) Some overlapping changes in qmi_wwan.c and be.h, one commit adds
   a new value, another changes an existing value.  That sort of
   thing.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01 17:06:14 -04:00
Linus Torvalds
c31eeaced2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking changes from David Miller:

 1) Multiply in netfilter IPVS can overflow when calculating destination
    weight.  From Simon Kirby.

 2) Use after free fixes in IPVS from Julian Anastasov.

 3) SFC driver bug fixes from Daniel Pieczko.

 4) Memory leak in pcan_usb_core failure paths, from Alexey Khoroshilov.

 5) Locking and encapsulation fixes to serial line CAN driver, from
    Andrew Naujoks.

 6) Duplex and VF handling fixes to bnx2x driver from Yaniv Rosner,
    Eilon Greenstein, and Ariel Elior.

 7) In lapb, if no other packets are outstanding, T1 timeouts actually
    stall things and no packet gets sent.  Fix from Josselin Costanzi.

 8) ICMP redirects should not make it to the socket error queues, from
    Duan Jiong.

 9) Fix bugs in skge DMA mapping error handling, from Nikulas Patocka.

10) Fix setting of VLAN priority field on via-rhine driver, from Roget
    Luethi.

11) Fix TX stalls and VLAN promisc programming in be2net driver from
    Ajit Khaparde.

12) Packet padding doesn't get handled correctly in new usbnet SG
    support code, from Ming Lei.

13) Fix races in netdevice teardown wrt.  network namespace closing.
    From Eric W.  Biederman.

14) Fix potential missed initialization of net_secret if not TCP
    connections are openned.  From Eric Dumazet.

15) Cinterion PLXX product ID in qmi_wwan driver is wrong, from
    Aleksander Morgado.

16) skb_cow_head() can change skb->data and thus packet header pointers,
    don't use stale ip_hdr reference in ip_tunnel code.

17) Backend state transition handling fixes in xen-netback, from Paul
    Durrant.

18) Packet offset for AH protocol is handled wrong in flow dissector,
    from Eric Dumazet.

19) Taking down an fq packet scheduler instance can leave stale packets
    in the queues, fix from Eric Dumazet.

20) Fix performance regressions introduced by TCP Small Queues.  From
    Eric Dumazet.

21) IPV6 GRE tunneling code calculates max_headroom incorrectly, from
    Hannes Frederic Sowa.

22) Multicast timer handlers in ipv4 and ipv6 can be the last and final
    reference to the ipv4/ipv6 specific network device state, so use the
    reference put that will check and release the object if the
    reference hits zero.  From Salam Noureddine.

23) Fix memory corruption in ip_tunnel driver, and use skb_push()
    instead of __skb_push() so that similar bugs are less hard to find.
    From Steffen Klassert.

24) Add forgotten hookup of rtnl_ops in SIT and ip6tnl drivers, from
    Nicolas Dichtel.

25) fq scheduler doesn't accurately rate limit in certain circumstances,
    from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (103 commits)
  pkt_sched: fq: rate limiting improvements
  ip6tnl: allow to use rtnl ops on fb tunnel
  sit: allow to use rtnl ops on fb tunnel
  ip_tunnel: Remove double unregister of the fallback device
  ip_tunnel_core: Change __skb_push back to skb_push
  ip_tunnel: Add fallback tunnels to the hash lists
  ip_tunnel: Fix a memory corruption in ip_tunnel_xmit
  qlcnic: Fix SR-IOV configuration
  ll_temac: Reset dma descriptors indexes on ndo_open
  skbuff: size of hole is wrong in a comment
  ipv6 mcast: use in6_dev_put in timer handlers instead of __in6_dev_put
  ipv4 igmp: use in_dev_put in timer handlers instead of __in_dev_put
  ethernet: moxa: fix incorrect placement of __initdata tag
  ipv6: gre: correct calculation of max_headroom
  powerpc/83xx: gianfar_ptp: select 1588 clock source through dts file
  Revert "powerpc/83xx: gianfar_ptp: select 1588 clock source through dts file"
  bonding: Fix broken promiscuity reference counting issue
  tcp: TSQ can use a dynamic limit
  dm9601: fix IFF_ALLMULTI handling
  pkt_sched: fq: qdisc dismantle fixes
  ...
2013-10-01 12:58:48 -07:00
Srinivas Pandruvada
1df3a40115 HID: Delay opening HID device
Don't call hid_open_device till there is actually an user. This saves
power by not opening underlying transport for HID. Also close device
if there are no active mfd client using HID sensor hub.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-10-01 16:19:08 +01:00
Tom Gundersen
cb2ffb26e6 cuse: add fix minor number to /dev/cuse
This allows udev (or more recently systemd-tmpfiles) to create /dev/cuse on
boot, in the same way as /dev/fuse is currently created, and the corresponding
module to be loaded on first access.

The corresponding functionalty was introduced for fuse in commit 578454f.

Signed-off-by: Tom Gundersen <teg@jklm.no>
Cc: Kay Sievers <kay@vrfy.org>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2013-10-01 16:44:54 +02:00
Frederic Weisbecker
7d65f4a655 irq: Consolidate do_softirq() arch overriden implementations
All arch overriden implementations of do_softirq() share the following
common code: disable irqs (to avoid races with the pending check),
check if there are softirqs pending, then execute __do_softirq() on
a specific stack.

Consolidate the common parts such that archs only worry about the
stack switch.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
2013-10-01 12:53:25 +02:00
holger@eitzenberger.org
180cf72f56 netfilter: nf_ct_sip: consolidate NAT hook functions
There are currently seven different NAT hooks used in both
nf_conntrack_sip and nf_nat_sip, each of the hooks is exported in
nf_conntrack_sip, then set from the nf_nat_sip NAT helper.

And because each of them is exported there is quite some overhead
introduced due of this.

By introducing nf_nat_sip_hooks I am able to reduce both text/data
somewhat.  For nf_conntrack_sip e. g. I get

        text             data              bss              dec
old    15243             5256               32            20531
new    15010             5192               32            20234

Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-10-01 12:47:09 +02:00
Eliad Peller
5eb7906b47 ieee80211: fix vht cap definitions
VHT_CAP_BEAMFORMER_ANTENNAS cap is actually defined in the draft as
VHT_CAP_BEAMFORMEE_STS_MAX, and its size is 3 bits long.

VHT_CAP_SOUNDING_DIMENSIONS is also 3 bits long.

Fix the definitions and change the cap masking accordingly.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-01 12:17:08 +02:00
Nicolas Dichtel
4590672357 skbuff: size of hole is wrong in a comment
Since commit c93bdd0e03 ("netvm: allow skb allocation to use PFMEMALLOC
reserves"), hole size is one bit less than what is written in the comment.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 22:32:39 -07:00
Eric Dumazet
36a8f39e05 net: skb_is_gso_v6() requires skb_is_gso()
bnx2x makes a dangerous use of skb_is_gso_v6().

It should first make sure skb is a gso packet

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Eilon Greenstein <eilong@broadcom.com>
Acked-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-09-30 22:09:00 -07:00
Linus Torvalds
f927318840 NFS client bugfixes for 3.12
- Stable fix for Oopses in the pNFS files layout driver
 - Fix a regression when doing a non-exclusive file create on NFSv4.x
 - NFSv4.1 security negotiation fixes when looking up the root filesystem
 - Fix a memory ordering issue in the pNFS files layout driver
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Merge tag 'nfs-for-3.12-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 - Stable fix for Oopses in the pNFS files layout driver
 - Fix a regression when doing a non-exclusive file create on NFSv4.x
 - NFSv4.1 security negotiation fixes when looking up the root
   filesystem
 - Fix a memory ordering issue in the pNFS files layout driver

* tag 'nfs-for-3.12-4' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFS: Give "flavor" an initial value to fix a compile warning
  NFSv4.1: try SECINFO_NO_NAME flavs until one works
  NFSv4.1: Ensure memory ordering between nfs4_ds_connect and nfs4_fl_prepare_ds
  NFSv4.1: nfs4_fl_prepare_ds - fix bugs when the connect attempt fails
  NFSv4: Honour the 'opened' parameter in the atomic_open() filesystem method
2013-09-30 17:10:26 -07:00
Linus Torvalds
522d6d38f8 Merge branch 'akpm' (fixes from Andrew Morton)
Merge misc fixes from Andrew Morton.

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (22 commits)
  pidns: fix free_pid() to handle the first fork failure
  ipc,msg: prevent race with rmid in msgsnd,msgrcv
  ipc/sem.c: update sem_otime for all operations
  mm/hwpoison: fix the lack of one reference count against poisoned page
  mm/hwpoison: fix false report on 2nd attempt at page recovery
  mm/hwpoison: fix test for a transparent huge page
  mm/hwpoison: fix traversal of hugetlbfs pages to avoid printk flood
  block: change config option name for cmdline partition parsing
  mm/mlock.c: prevent walking off the end of a pagetable in no-pmd configuration
  mm: avoid reinserting isolated balloon pages into LRU lists
  arch/parisc/mm/fault.c: fix uninitialized variable usage
  include/asm-generic/vtime.h: avoid zero-length file
  nilfs2: fix issue with race condition of competition between segments for dirty blocks
  Documentation/kernel-parameters.txt: replace kernelcore with Movable
  mm/bounce.c: fix a regression where MS_SNAP_STABLE (stable pages snapshotting) was ignored
  kernel/kmod.c: check for NULL in call_usermodehelper_exec()
  ipc/sem.c: synchronize the proc interface
  ipc/sem.c: optimize sem_lock()
  ipc/sem.c: fix race in sem_lock()
  mm/compaction.c: periodically schedule when freeing pages
  ...
2013-09-30 14:32:32 -07:00
Rafael Aquini
117aad1e9e mm: avoid reinserting isolated balloon pages into LRU lists
Isolated balloon pages can wrongly end up in LRU lists when
migrate_pages() finishes its round without draining all the isolated
page list.

The same issue can happen when reclaim_clean_pages_from_list() tries to
reclaim pages from an isolated page list, before migration, in the CMA
path.  Such balloon page leak opens a race window against LRU lists
shrinkers that leads us to the following kernel panic:

  BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
  IP: [<ffffffff810c2625>] shrink_page_list+0x24e/0x897
  PGD 3cda2067 PUD 3d713067 PMD 0
  Oops: 0000 [#1] SMP
  CPU: 0 PID: 340 Comm: kswapd0 Not tainted 3.12.0-rc1-22626-g4367597 #87
  Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
  RIP: shrink_page_list+0x24e/0x897
  RSP: 0000:ffff88003da499b8  EFLAGS: 00010286
  RAX: 0000000000000000 RBX: ffff88003e82bd60 RCX: 00000000000657d5
  RDX: 0000000000000000 RSI: 000000000000031f RDI: ffff88003e82bd40
  RBP: ffff88003da49ab0 R08: 0000000000000001 R09: 0000000081121a45
  R10: ffffffff81121a45 R11: ffff88003c4a9a28 R12: ffff88003e82bd40
  R13: ffff88003da0e800 R14: 0000000000000001 R15: ffff88003da49d58
  FS:  0000000000000000(0000) GS:ffff88003fc00000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 00000000067d9000 CR3: 000000003ace5000 CR4: 00000000000407b0
  Call Trace:
    shrink_inactive_list+0x240/0x3de
    shrink_lruvec+0x3e0/0x566
    __shrink_zone+0x94/0x178
    shrink_zone+0x3a/0x82
    balance_pgdat+0x32a/0x4c2
    kswapd+0x2f0/0x372
    kthread+0xa2/0xaa
    ret_from_fork+0x7c/0xb0
  Code: 80 7d 8f 01 48 83 95 68 ff ff ff 00 4c 89 e7 e8 5a 7b 00 00 48 85 c0 49 89 c5 75 08 80 7d 8f 00 74 3e eb 31 48 8b 80 18 01 00 00 <48> 8b 74 0d 48 8b 78 30 be 02 00 00 00 ff d2 eb
  RIP  [<ffffffff810c2625>] shrink_page_list+0x24e/0x897
   RSP <ffff88003da499b8>
  CR2: 0000000000000028
  ---[ end trace 703d2451af6ffbfd ]---
  Kernel panic - not syncing: Fatal exception

This patch fixes the issue, by assuring the proper tests are made at
putback_movable_pages() & reclaim_clean_pages_from_list() to avoid
isolated balloon pages being wrongly reinserted in LRU lists.

[akpm@linux-foundation.org: clarify awkward comment text]
Signed-off-by: Rafael Aquini <aquini@redhat.com>
Reported-by: Luiz Capitulino <lcapitulino@redhat.com>
Tested-by: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Rik van Riel <riel@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-30 14:31:02 -07:00