Commit Graph

546457 Commits

Author SHA1 Message Date
Stephen Boyd d92c945d85 ARM: dts: qcom: apq8084-ifc6540: Use stdout-path
Use stdout-path so that we don't have to put the console on the
kernel command line.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-09 14:57:17 -05:00
Stephen Boyd 5f769789bd ARM: dts: qcom: apq8074-dragonboard: Use stdout-path
Use stdout-path so that we don't have to put the console on the
kernel command line.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-09 14:57:02 -05:00
Stephen Boyd 7f9e28b610 ARM: dts: qcom: apq8064-ifc6410: Use stdout-path
Use stdout-path so that we don't have to put the console on the
kernel command line.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-09 14:56:56 -05:00
Stephen Boyd 4e19db11e9 ARM: dts: qcom: apq8064-cm-qs600: Use stdout-path
Use stdout-path so that we don't have to put the console on the
kernel command line.

Cc: Mike Rapoport <mike.rapoport@gmail.com>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-09 14:56:50 -05:00
Stephen Boyd 10bfcfea9b ARM: dts: qcom: Label serial nodes for aliasing and stdout-path
Add a label to the serial nodes that are being used for the
console.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-09-09 14:56:42 -05:00
Andy Gross 9f384d67f2 Qualcomm ARM Based Device Tree Updates for v4.3
* Switch to use pinctrl compatible for GPIOs
 * Add RPM regulators for MSM8960
 * Add SPI Ethernet support on MSM8960 CDP
 * Add SMEM support along with dependencies
 * Add PM8921 support for GPIO and MPP
 * Fix GSBI cell index
 * Switch to use real regulators on APQ8064 w/ SDCC
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Merge tag 'qcom-dt-for-4.3' into v4.2-rc2

Qualcomm ARM Based Device Tree Updates for v4.3

* Switch to use pinctrl compatible for GPIOs
* Add RPM regulators for MSM8960
* Add SPI Ethernet support on MSM8960 CDP
* Add SMEM support along with dependencies
* Add PM8921 support for GPIO and MPP
* Fix GSBI cell index
* Switch to use real regulators on APQ8064 w/ SDCC
2015-09-09 14:56:32 -05:00
Daniel Borkmann 592867bfab ebpf: fix fd refcount leaks related to maps in bpf syscall
We may already have gotten a proper fd struct through fdget(), so
whenever we return at the end of an map operation, we need to call
fdput(). However, each map operation from syscall side first probes
CHECK_ATTR() to verify that unused fields in the bpf_attr union are
zero.

In case of malformed input, we return with error, but the lookup to
the map_fd was already performed at that time, so that we return
without an corresponding fdput(). Fix it by performing an fdget()
only right before bpf_map_get(). The fdget() invocation on maps in
the verifier is not affected.

Fixes: db20fd2b01 ("bpf: add lookup/update/delete/iterate methods to BPF maps")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-09 12:39:34 -07:00
Pratyush Anand 6551881c86 Watchdog: Fix parent of watchdog_devices
/sys/class/watchdog/watchdogn/device/modalias can help to identify the
driver/module for a given watchdog node. However, many wdt devices do not
set their parent and so, we do not see an entry for device in sysfs for
such devices.

This patch fixes parent of watchdog_device so that
/sys/class/watchdog/watchdogn/device is populated.

Exceptions: booke, diag288, octeon, softdog and w83627hf -- They do not
have any parent. Not sure, how we can identify driver for these devices.

Signed-off-by: Pratyush Anand <panand@redhat.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:39:22 +02:00
Bjorn Andersson bf5125d5e0 watchdog: at91rm9200: Correct check for syscon_node_to_regmap() errors
syscon_node_to_regmap() returns a regmap or an ERR_PTR().

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:39:07 +02:00
Alexandre Belloni a97a09bd11 watchdog: at91sam9: get and use slow clock
Commit dca1a4b5ff ("clk: at91: keep slow clk enabled to prevent system
hang") added a workaround for the slow clock as it is not properly handled
by its users.

Get and use the slow clock as it is necessary for the at91sam9 watchdog.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:38:52 +02:00
Wenyou Yang f4fff94e3e Documentation: dt: binding: atmel-sama5d4-wdt: for SAMA5D4 watchdog driver
The compatible "atmel,sama5d4-wdt" supports the SAMA5D4 watchdog driver
and the watchdog's WDT_MR register can be written more than once.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:38:35 +02:00
Sasha Levin 74e98eb085 RDS: verify the underlying transport exists before creating a connection
There was no verification that an underlying transport exists when creating
a connection, this would cause dereferencing a NULL ptr.

It might happen on sockets that weren't properly bound before attempting to
send a message, which will cause a NULL ptr deref:

[135546.047719] kasan: GPF could be caused by NULL-ptr deref or user memory accessgeneral protection fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC KASAN
[135546.051270] Modules linked in:
[135546.051781] CPU: 4 PID: 15650 Comm: trinity-c4 Not tainted 4.2.0-next-20150902-sasha-00041-gbaa1222-dirty #2527
[135546.053217] task: ffff8800835bc000 ti: ffff8800bc708000 task.ti: ffff8800bc708000
[135546.054291] RIP: __rds_conn_create (net/rds/connection.c:194)
[135546.055666] RSP: 0018:ffff8800bc70fab0  EFLAGS: 00010202
[135546.056457] RAX: dffffc0000000000 RBX: 0000000000000f2c RCX: ffff8800835bc000
[135546.057494] RDX: 0000000000000007 RSI: ffff8800835bccd8 RDI: 0000000000000038
[135546.058530] RBP: ffff8800bc70fb18 R08: 0000000000000001 R09: 0000000000000000
[135546.059556] R10: ffffed014d7a3a23 R11: ffffed014d7a3a21 R12: 0000000000000000
[135546.060614] R13: 0000000000000001 R14: ffff8801ec3d0000 R15: 0000000000000000
[135546.061668] FS:  00007faad4ffb700(0000) GS:ffff880252000000(0000) knlGS:0000000000000000
[135546.062836] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[135546.063682] CR2: 000000000000846a CR3: 000000009d137000 CR4: 00000000000006a0
[135546.064723] Stack:
[135546.065048]  ffffffffafe2055c ffffffffafe23fc1 ffffed00493097bf ffff8801ec3d0008
[135546.066247]  0000000000000000 00000000000000d0 0000000000000000 ac194a24c0586342
[135546.067438]  1ffff100178e1f78 ffff880320581b00 ffff8800bc70fdd0 ffff880320581b00
[135546.068629] Call Trace:
[135546.069028] ? __rds_conn_create (include/linux/rcupdate.h:856 net/rds/connection.c:134)
[135546.069989] ? rds_message_copy_from_user (net/rds/message.c:298)
[135546.071021] rds_conn_create_outgoing (net/rds/connection.c:278)
[135546.071981] rds_sendmsg (net/rds/send.c:1058)
[135546.072858] ? perf_trace_lock (include/trace/events/lock.h:38)
[135546.073744] ? lockdep_init (kernel/locking/lockdep.c:3298)
[135546.074577] ? rds_send_drop_to (net/rds/send.c:976)
[135546.075508] ? __might_fault (./arch/x86/include/asm/current.h:14 mm/memory.c:3795)
[135546.076349] ? __might_fault (mm/memory.c:3795)
[135546.077179] ? rds_send_drop_to (net/rds/send.c:976)
[135546.078114] sock_sendmsg (net/socket.c:611 net/socket.c:620)
[135546.078856] SYSC_sendto (net/socket.c:1657)
[135546.079596] ? SYSC_connect (net/socket.c:1628)
[135546.080510] ? trace_dump_stack (kernel/trace/trace.c:1926)
[135546.081397] ? ring_buffer_unlock_commit (kernel/trace/ring_buffer.c:2479 kernel/trace/ring_buffer.c:2558 kernel/trace/ring_buffer.c:2674)
[135546.082390] ? trace_buffer_unlock_commit (kernel/trace/trace.c:1749)
[135546.083410] ? trace_event_raw_event_sys_enter (include/trace/events/syscalls.h:16)
[135546.084481] ? do_audit_syscall_entry (include/trace/events/syscalls.h:16)
[135546.085438] ? trace_buffer_unlock_commit (kernel/trace/trace.c:1749)
[135546.085515] rds_ib_laddr_check(): addr 36.74.25.172 ret -99 node type -1

Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-09 12:38:30 -07:00
Wenyou Yang 76534860f1 watchdog: add a driver to support SAMA5D4 watchdog timer
From SAMA5D4, the watchdog timer is upgrated with a new feature,
which is describled as in the datasheet, "WDT_MR can be written
until a LOCKMR command is issued in WDT_CR".
That is to say, as long as the bootstrap and u-boot don't issue
a LOCKMR command, WDT_MR can be written more than once in the driver.

So the SAMA5D4 watchdog driver's implementation is different from
the at91sam9260 watchdog driver implemented in file at91sam9_wdt.c.
The user application open the device file to enable the watchdog timer
hardware, and close to disable it, and set the watchdog timer timeout
by seting WDV and WDD fields of WDT_MR register, and ping the watchdog
by issuing WDRSTT command to WDT_CR register with hard-coded key.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:38:29 +02:00
Uwe Kleine-König f8c33e9717 watchdog: mpc8xxx: allow to compile for MPC512x
The MPC5125 processor features a watchdog device that is identical to
the MPC8610 one. So allow to enable the driver for MPC512x kernel
configurations.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:38:16 +02:00
Uwe Kleine-König 72cd501e6a watchdog: mpc8xxx: use better error code when watchdog cannot be enabled
checkpatch warns about ENOSYS, telling "ENOSYS means 'invalid syscall
nr' and nothing else". So use ENODEV instead.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:37:51 +02:00
Uwe Kleine-König 7997ebad4d watchdog: mpc8xxx: use dynamic memory for device specific data
Instead of relying on global static memory dynamically allocate the
needed data. This has the benefit of some saved bytes if the driver is
not in use and making it possible to bind more than one device (even
though this has no known use case).

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:37:29 +02:00
Uwe Kleine-König de5f71222b watchdog: mpc8xxx: use devm_ioremap_resource to map memory
This simplifies the error paths and device unbinding.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:37:15 +02:00
Uwe Kleine-König f0ded83b96 watchdog: mpc8xxx: make use of of_device_get_match_data
This function is new in v4.2-rc1 and makes a forward declaration of the
match table superfluous which can so be removed.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:36:51 +02:00
Uwe Kleine-König 50ffb53ef2 watchdog: mpc8xxx: simplify registration
Since commit ef90174f82 ("watchdog: watchdog_core: Add watchdog
registration deferral mechanism") there is no need to delay the call to
watchdog_register_device any more. So simplify the registration code
accordingly.

Resetting wd_base to NULL can the also be dropped because nothing
depends on it being NULL to signal probe failure any more. (The matching
wd_base = NULL in .remove was missing, too.)

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:36:39 +02:00
Uwe Kleine-König a57e06f7c6 watchdog: mpc8xxx: remove dead code
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:36:31 +02:00
Fengguang Wu 6cd8a1b9f7 watchdog: lpc18xx_wdt_get_timeleft() can be static
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:36:17 +02:00
Ariel D'Alessandro cfde37e1ec DT: watchdog: Add NXP LPC18xx Watchdog Timer binding documentation
Add the devicetree binding document for NXP LPC18xx Watchdog Timer.

Signed-off-by: Ariel D'Alessandro <ariel@vanguardiasur.com.ar>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:36:06 +02:00
Ariel D'Alessandro 7c25f8c9f6 watchdog: NXP LPC18xx Watchdog Timer Driver
This commit adds support for the watchdog timer found in NXP LPC SoCs
family, which includes LPC18xx/LPC43xx. Other SoCs in that family may
share the same watchdog hardware.

Watchdog driver registers a restart handler that will restart the system
by performing an incorrect feed after ensuring the watchdog is enabled in
reset mode.

As watchdog cannot be disabled in hardware, driver's stop routine will
regularly send a keepalive ping using a timer.

Signed-off-by: Ariel D'Alessandro <ariel@vanguardiasur.com.ar>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:35:59 +02:00
Uwe Kleine-König 4f2d0b2d1b watchdog: gpio-wdt: ping already at startup for always running devices
During probe for an always-running watchdog a timer is setup to
constantly ping the watchdog while the device is not open. The gpio to
ping the watchdog is setup to inactive.

For a watchdog with hw_algo = "toggle" this results in a ping depending
on the initial state of the gpio, for hw_algo = "level" no ping is
generated.

Make sure that the first automatic ping is sent immediately and not only
when the timer expires the first time. This makes the machine survive in
case more than half of the watchdog timeout is already elapsed. (Which
is very probable for the chip I'm faced with that has a timeout of one
second.)

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:35:37 +02:00
Uwe Kleine-König 0a0a542f6b watchdog: gpio-wdt: be more strict about hw_algo matching
strncmp(algo, "toggle", 6) doesn't compare the trailing '\0' byte, so
using

	hw_algo = "toggleboggle"

is recognized the same way as

	hw_algo = "toggle"

. While this doesn't introduce any problems for a device tree that
sticks to the documented settings it's still ugly.

Fix this by using strcmp to only match on "toggle" and "level".

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:35:14 +02:00
Alexandre Belloni ab54d7f017 Documentation: watchdog: at91sam9_wdt: add clocks property
The watchdog has an input clock, the slow clock. It is required as it will
not function without it.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:34:46 +02:00
David Vrabel 1d5d485239 xen-netback: require fewer guest Rx slots when not using GSO
Commit f48da8b14d (xen-netback: fix
unlimited guest Rx internal queue and carrier flapping) introduced a
regression.

The PV frontend in IPXE only places 4 requests on the guest Rx ring.
Since netback required at least (MAX_SKB_FRAGS + 1) slots, IPXE could
not receive any packets.

a) If GSO is not enabled on the VIF, fewer guest Rx slots are required
   for the largest possible packet.  Calculate the required slots
   based on the maximum GSO size or the MTU.

   This calculation of the number of required slots relies on
   1650d5455b (xen-netback: always fully coalesce guest Rx packets)
   which present in 4.0-rc1 and later.

b) Reduce the Rx stall detection to checking for at least one
   available Rx request.  This is fine since we're predominately
   concerned with detecting interfaces which are down and thus have
   zero available Rx requests.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-09 12:34:35 -07:00
Guenter Roeck fa928ee8d4 watchdog: booke_wdt: Use infrastructure to check timeout limits
The watchdog infrastructure checks the maximum timeout for us.
Use it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:34:34 +02:00
Vivien Didelot 64307b48f7 watchdog: (nv_tco) add support for MCP79
Tested on the Nvidia chipset with an SMBus controller PCI ID 0x0AA2
(as shown in the PCI listing during the boot sequence).

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:34:24 +02:00
Francesco Lavra 0919e44451 watchdog: sunxi: fix activation of system reset
Commit f2147de334 ("watchdog: sunxi: support parameterized compatible
strings") introduced a regression in sunxi_wdt_start(), by which
the system reset function of the watchdog is not enabled upon
starting the watchdog. As a result, the system is not reset when the
watchdog expires. Fix it.

Fixes: f2147de334 ("watchdog: sunxi: support parameterized compatible strings")
Signed-off-by: Francesco Lavra <francescolavra.fl@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: stable@vger.kernel.org
2015-09-09 21:34:14 +02:00
Greta Zhang 5724485b18 watchdog: mtk_wdt: add wdt shutdown callback to disable wdt if enabled
Without .shutdown(), watchdog might reset the system during power off.
For example, if watchdog's timeout is set to 30s, then it is reset to
zero by mtk_wdt_ping(). During power off, no app will ping watchdog,
but watchdog is still running and may trigger reset.

Signed-off-by: Greta Zhang <greta.zhang@mediatek.com>
Signed-off-by: Eddie Huang <eddie.huang@mediatek.com>
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:34:02 +02:00
Greta Zhang 9fab06920c watchdog: mtk_wdt: add suspend/resume support
add mediatek watchdog driver suspend/resume support

Signed-off-by: Greta Zhang <greta.zhang@mediatek.com>
Signed-off-by: Roger Lu <roger.lu@mediatek.com>
Signed-off-by: Eddie Huang <eddie.huang@mediatek.com>
Acked-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:33:56 +02:00
Ezequiel Garcia 8a340dbbc4 watchdog: imgpdc: Unregister restart handler on remove
Commit c631f20068 ("watchdog: imgpdc: Add reboot support") introduced
a restart handler but forgot to unregister it on driver removal. Fix it.

Fixes: c631f20068 ("watchdog: imgpdc: Add reboot support")
Reported-by: Ariel D'Alessandro <ariel@vanguardiasur.com.ar>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:33:41 +02:00
Timur Tabi f15d7114bb Documentation/watchdog: add timeout and ping rate control to watchdog-test.c
The watchdog test program is much more useful if it can configure the
timeout value and ping rate.  This will allow you to test actual timeouts.

Adds the -t parameter to set the timeout value (in seconds), and -p to set
the ping rate (number of seconds between pings).

Signed-off-by: Timur Tabi <timur@codeaurora.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2015-09-09 21:33:36 +02:00
David S. Miller 9b57ab8b58 Merge branch 'cxgb4-fixes'
Hariprasad Shenai says:

====================
cxgb4: Fix tx flit calculation and wc stat configuration

This patch series fixes the following:
Patch 1/2 fixes tx flit calculation, which if wrong can lead to
stall, hang, data corrpution, write combining failure. Patch 2/2 fixes
PCI-E write combining stats configuration.

This patch series has been created against net tree and includes
patches on cxgb4 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>
2015-09-09 12:29:26 -07:00
Hariprasad Shenai 2a485cf7db cxgb4: Fix for write-combining stats configuration
The write-combining configuration register SGE_STAT_CFG_A needs to
be configured after FW initializes the adapter, else FW will reset
the configuration

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-09 12:29:26 -07:00
Hariprasad Shenai fd1754fb8a cxgb4: Fix tx flit calculation
In commit 0aac3f56d4 ("cxgb4: Add comment for calculate tx flits
and sge length code") introduced a regression where tx flit calculation
is going wrong, which can lead to data corruption, hang, stall and
write-combining failure. Fixing it.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-09 12:29:26 -07:00
Atsushi Nemoto d43cefcd68 net: eth: altera: Fix the initial device operstate
Call netif_carrier_off() prior to register_netdev(), otherwise
userspace can see incorrect link state.

Signed-off-by: Atsushi Nemoto <nemoto@toshiba-tops.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-09 12:10:15 -07:00
Linus Torvalds b8889c4fc6 TTY driver revert for 4.3-rc1
Here are some reverts for some tty patches (specifically the pl011
 driver) that ended up breaking a bunch of machines (i.e. almost all of
 the ones with this chip.)  People are working on a fix for this, but in
 the meantime, it's best to just revert all 5 patches to restore people's
 serial consoles.
 
 These reverts have been in linux-next for many days now.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty driver reverts from Greg KH:
 "Here are some reverts for some tty patches (specifically the pl011
  driver) that ended up breaking a bunch of machines (i.e. almost all
  of the ones with this chip).

  People are working on a fix for this, but in the meantime, it's best
  to just revert all 5 patches to restore people's serial consoles.

  These reverts have been in linux-next for many days now"

* tag 'tty-4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  Revert "uart: pl011: Rename regs with enumeration"
  Revert "uart: pl011: Introduce register accessor"
  Revert "uart: pl011: Introduce register look up table"
  Revert "uart: pl011: Improve LCRH register access decision"
  Revert "uart: pl011: Add support to ZTE ZX296702 uart"
2015-09-09 11:27:01 -07:00
Linus Torvalds fac33bfdb0 MTD updates #2 for 4.3-rc1:
* SPI NOR: bug fix for a "end of table" check that resulted in a NULL
    dereference in some cases
 
  * SPI NOR: a few new IDs / feature flags
 
  * OMAP2 NAND: rename module so it doesn't conflict with onenand omap2.ko
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Merge tag 'for-linus-20150909' of git://git.infradead.org/linux-mtd

Pull more MTD updates from Brian Norris:
 "There was one significant bug in my first pull request, fixed here.  I
  also threw in a few trivial ID additions and a small module rename.

  Details:

   - SPI NOR: bug fix for a "end of table" check that resulted in a NULL
     dereference in some cases

   - SPI NOR: a few new IDs / feature flags

   - OMAP2 NAND: rename module so it doesn't conflict with onenand
     omap2.ko"

* tag 'for-linus-20150909' of git://git.infradead.org/linux-mtd:
  mtd: spi-nor: fix NULL dereference when no match found in spi_nor_ids[]
  mtd: spi-nor: s25sl064p supports both dual and quad I/O
  mtd: spi-nor: allow dual/quad reads on S25FL129P
  mtd: nand: omap2: Rename shippable module to omap2_nand
  mtd: spi-nor: Add support for sst25wf020a
  mtd: spi-nor: Add support for Micron n25q064a serial flash
2015-09-09 11:17:33 -07:00
Linus Torvalds 82278fc079 pwm: Changes for v4.3-rc1
This set of changes introduces the beginnings of a new API that's based
 around the concept of states that can be atomically applied. Drivers go
 to various lengths to implement something similar, which indicates that
 the core should really be providing the necessary framework.
 
 On top of that, there is a bit of cleanup as well as improved kerneldoc
 and integration into the device-drivers DocBook.
 
 Regarding drivers there is a new one for the NXP LPC18xx family of SoCs
 and a couple of fixes for existing drivers (pca9685, Broadcom Kona and
 Atmel HLCDC).
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Merge tag 'pwm/for-4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm updates from Thierry Reding:
 "This set of changes introduces the beginnings of a new API that's
  based around the concept of states that can be atomically applied.
  Drivers go to various lengths to implement something similar, which
  indicates that the core should really be providing the necessary
  framework.

  On top of that, there is a bit of cleanup as well as improved
  kerneldoc and integration into the device-drivers DocBook.

  Regarding drivers there is a new one for the NXP LPC18xx family of
  SoCs and a couple of fixes for existing drivers (pca9685, Broadcom
  Kona and Atmel HLCDC)"

* tag 'pwm/for-4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  ARM: at91: pwm: atmel-hlcdc: Add at91sam9n12 errata
  pwm: Add NXP LPC18xx PWM/SCT DT binding documentation
  pwm: NXP LPC18xx PWM/SCT driver
  pwm-pca9685: Support changing the output frequency
  pwm-pca9685: Fix several driver bugs
  pwm: kona: Modify settings application sequence
  pwm: pca9685: Drop owner assignment
  pwm: Add to device-drivers documentation
  pwm: Clean up kerneldoc
  pwm: Remove useless whitespace
  pwm: sysfs: Remove unnecessary padding
  pwm: sysfs: Properly convert from enum to string
  pwm: Make use of pwm_get_xxx() helpers where appropriate
  pwm: Add pwm_get_polarity() helper function
  pwm: Constify PWM device where possible
  pwm: Add the pwm_is_enabled() helper
2015-09-09 10:55:32 -07:00
Al Viro bd2843fe1f fix ufs write vs readpage race when writing into a hole
Followup to the UFS series - with the way we clear the new blocks (via
buffer cache, possibly on more than a page worth of file) we really
should not insert a reference to new block into inode block tree until
after we'd cleared it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-09 10:43:12 -07:00
Linus Torvalds daf0e1ed57 virtio: fixes and features 4.3
virtio-mmio can now be auto-loaded through acpi.
 virtio blk supports extended partitions.
 total memory is better reported when using virtio balloon with auto-deflate.
 cache control is re-enabled when using virtio-blk in modern mode.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio updates from Michael Tsirkin:
 "Virtio fixes and features for 4.3:

   - virtio-mmio can now be auto-loaded through acpi.
   - virtio blk supports extended partitions.
   - total memory is better reported when using virtio balloon with
     auto-deflate.
   - cache control is re-enabled when using virtio-blk in modern mode"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio_balloon: do not change memory amount visible via /proc/meminfo
  virtio_ballon: change stub of release_pages_by_pfn
  virtio-blk: Allow extended partitions
  virtio_mmio: add ACPI probing
  virtio-blk: use VIRTIO_BLK_F_WCE and VIRTIO_BLK_F_CONFIG_WCE in virtio1
2015-09-09 10:37:41 -07:00
Linus Torvalds 065d80b4bf Metag architecture changes for v4.3
Just a couple of changes for v4.3-rc1. A preparatory IRQ patch to
 prepare for moving irq_data struct members, and a tweak to
 Documentation/features since Meta2 could support THP.
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Merge tag 'metag-for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag

Pull metag updates from James Hogan:
 "Metag architecture changes for v4.3.

  Just a couple of changes for v4.3-rc1.  A preparatory IRQ patch to
  prepare for moving irq_data struct members, and a tweak to
  Documentation/features since Meta2 could support THP"

* tag 'metag-for-v4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag:
  Documentation/features/vm: Meta2 is capable of THP
  metag/irq: Use access helper irq_data_get_affinity_mask()
2015-09-09 10:27:59 -07:00
Linus Torvalds 949feacb8a nios2 update for v4.3-rc1
- add defconfig and device tree for max 10 support
 - migrate to new 'set-state' interface for timer
 - fix unaligned handler
 - MAINTAINERS: update nios2 git repo
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Merge tag 'nios2-v4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2

Pull nios2 updates from Ley Foon Tan:

 - add defconfig and device tree for max 10 support
 - migrate to new 'set-state' interface for timer
 - fix unaligned handler
 - MAINTAINERS: update nios2 git repo

* tag 'nios2-v4.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2:
  nios2: add Max10 defconfig
  nios2: Add Max10 device tree
  MAINTAINERS: update nios2 git repo
  nios2: remove unused statistic counters
  nios2: fixed variable imm16 to s16
  nios2/time: Migrate to new 'set-state' interface
2015-09-09 10:07:32 -07:00
Linus Torvalds 384989b58d Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs updates from Steve French:
 "Small cifs fix and a patch for improved debugging"

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: Fix use-after-free on mid_q_entry
  Update cifs version number
  Add way to query server fs info for smb3
2015-09-09 09:59:35 -07:00
Ross Zwisler d77e92e270 dax: update PMD fault handler with PMEM API
As part of the v4.3 merge window the DAX code was updated by Matthew and
Kirill to handle PMD pages.  Also as part of the v4.3 merge window we
updated the DAX code to do proper PMEM flushing (commit 2765cfbb342c:
"dax: update I/O path to do proper PMEM flushing").

The additional code added by the DAX PMD patches also needs to be
updated to properly use the PMEM API.  This ensures that after a PMD
fault is handled the zeros written to the newly allocated pages are
durable on the DIMMs.

linux/dax.h is included to get rid of a bunch of sparse warnings.

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Matthew Wilcox <willy@linux.intel.com>,
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Kirill Shutemov <kirill@shutemov.name>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-09 09:47:57 -07:00
Mike Frysinger 02cc2ccfe7 Revert "Hexagon: fix signal.c compile error"
This reverts commit f3f601c1d2.

UAPI headers cannot use "uapi/" in their paths by design -- when they're
installed, they do not have the uapi/ prefix.  Otherwise doing so breaks
userland badly.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
2015-09-09 11:27:15 -05:00
Linus Torvalds 26d2177e97 Changes for 4.3
- Create drivers/staging/rdma
 - Move amso1100 driver to staging/rdma and schedule for deletion
 - Move ipath driver to staging/rdma and schedule for deletion
 - Add hfi1 driver to staging/rdma and set TODO for move to regular tree
 - Initial support for namespaces to be used on RDMA devices
 - Add RoCE GID table handling to the RDMA core caching code
 - Infrastructure to support handling of devices with differing
   read and write scatter gather capabilities
 - Various iSER updates
 - Kill off unsafe usage of global mr registrations
 - Update SRP driver
 - Misc. mlx4 driver updates
 - Support for the mr_alloc verb
 - Support for a netlink interface between kernel and user space cache
   daemon to speed path record queries and route resolution
 - Ininitial support for safe hot removal of verbs devices
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull inifiniband/rdma updates from Doug Ledford:
 "This is a fairly sizeable set of changes.  I've put them through a
  decent amount of testing prior to sending the pull request due to
  that.

  There are still a few fixups that I know are coming, but I wanted to
  go ahead and get the big, sizable chunk into your hands sooner rather
  than waiting for those last few fixups.

  Of note is the fact that this creates what is intended to be a
  temporary area in the drivers/staging tree specifically for some
  cleanups and additions that are coming for the RDMA stack.  We
  deprecated two drivers (ipath and amso1100) and are waiting to hear
  back if we can deprecate another one (ehca).  We also put Intel's new
  hfi1 driver into this area because it needs to be refactored and a
  transfer library created out of the factored out code, and then it and
  the qib driver and the soft-roce driver should all be modified to use
  that library.

  I expect drivers/staging/rdma to be around for three or four kernel
  releases and then to go away as all of the work is completed and final
  deletions of deprecated drivers are done.

  Summary of changes for 4.3:

   - Create drivers/staging/rdma
   - Move amso1100 driver to staging/rdma and schedule for deletion
   - Move ipath driver to staging/rdma and schedule for deletion
   - Add hfi1 driver to staging/rdma and set TODO for move to regular
     tree
   - Initial support for namespaces to be used on RDMA devices
   - Add RoCE GID table handling to the RDMA core caching code
   - Infrastructure to support handling of devices with differing read
     and write scatter gather capabilities
   - Various iSER updates
   - Kill off unsafe usage of global mr registrations
   - Update SRP driver
   - Misc  mlx4 driver updates
   - Support for the mr_alloc verb
   - Support for a netlink interface between kernel and user space cache
     daemon to speed path record queries and route resolution
   - Ininitial support for safe hot removal of verbs devices"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (136 commits)
  IB/ipoib: Suppress warning for send only join failures
  IB/ipoib: Clean up send-only multicast joins
  IB/srp: Fix possible protection fault
  IB/core: Move SM class defines from ib_mad.h to ib_smi.h
  IB/core: Remove unnecessary defines from ib_mad.h
  IB/hfi1: Add PSM2 user space header to header_install
  IB/hfi1: Add CSRs for CONFIG_SDMA_VERBOSITY
  mlx5: Fix incorrect wc pkey_index assignment for GSI messages
  IB/mlx5: avoid destroying a NULL mr in reg_user_mr error flow
  IB/uverbs: reject invalid or unknown opcodes
  IB/cxgb4: Fix if statement in pick_local_ip6adddrs
  IB/sa: Fix rdma netlink message flags
  IB/ucma: HW Device hot-removal support
  IB/mlx4_ib: Disassociate support
  IB/uverbs: Enable device removal when there are active user space applications
  IB/uverbs: Explicitly pass ib_dev to uverbs commands
  IB/uverbs: Fix race between ib_uverbs_open and remove_one
  IB/uverbs: Fix reference counting usage of event files
  IB/core: Make ib_dealloc_pd return void
  IB/srp: Create an insecure all physical rkey only if needed
  ...
2015-09-09 08:33:31 -07:00
Josh Wu 7a59382018 ARM: at91: pwm: atmel-hlcdc: Add at91sam9n12 errata
The errata for HLCDC PWM of at91sam9n12 are the same as for at91sam9x5.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2015-09-09 15:16:01 +02:00