Commit Graph

454911 Commits

Author SHA1 Message Date
Ivan Khoronzhuk
b7ae8bf7bf ARM: keystone: remove redundant reset stuff
Remove reset stuff in flavour of using keystone reset driver:
driver/power/reset/keystone-reset.c

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-05-27 09:48:52 -04:00
Ivan Khoronzhuk
a3e01e8022 power: reset: keystone-reset: introduce keystone reset driver
The keystone SoC can be rebooted in several ways. By external reset
pin, by soft and by watchdogs. To allow keystone SoC reset if
watchdog is triggered we have to enable it in reset mux configuration
register regarding of watchdog configuration. Also we need to set
soft/hard reset we are going to use.

So add keystone reset driver to handle all this stuff.

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-05-27 09:46:40 -04:00
Ivan Khoronzhuk
d30982b93a Documentation: dt: add bindings for keystone pll control controller
The main pll controller used to drive theC66x CorePacs, the switch fabric,
and a majority of the peripheral clocks (all but the ARM CorePacs, DDR3 and
the NETCP modules) requires a PLL Controller to manage the various clock
divisions, gating, and synchronization.

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
[santosh.shilimkar@ti.com: Fixed the subject line]
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-05-27 09:46:39 -04:00
Ivan Khoronzhuk
caee005533 Documentation: dt: add bindings for keystone reset driver
This node is intended to allow SoC reset in case of software reset
or appropriate watchdogs.

The Keystone SoCs can contain up to 4 watchdog timers to reset
SoC. Each watchdog timer event input is connected to the Reset Mux
block. The Reset Mux block can be configured to cause reset or not.

Additionally soft or hard reset can be configured.

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
[santosh.shilimkar@ti.com: Fixed the subject line]
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-05-27 09:46:32 -04:00
Jean Delvare
821e85f2a8 gpio: Add run-time dependencies to R-Car driver
The Renesas R-Car GPIO driver is only useful on shmobile unless build
testing.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Magnus Damm <damm@opensource.se>
Cc: Alexandre Courbot <gnurou@gmail.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-27 15:44:10 +02:00
Barry Song
69493e0b0a ata: ep93xx: use dmaengine_prep_slave_sg api instead of internal callback
it is better to use generic api instead of calling an internal callback
like channel->device->device_prep_slave_sg().

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2014-05-27 09:33:22 -04:00
Andreas Schrägle
754a292fe6 ahci: add PCI ID for Marvell 88SE91A0 SATA Controller
Add support for Marvell Technology Group Ltd. 88SE91A0 SATA 6Gb/s
Controller by adding its PCI ID.

Signed-off-by: Andreas Schrägle <ajs124.ajs124@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
2014-05-27 09:30:21 -04:00
Barry Song
648e42e140 pinctrl: sirf: fix typo for GPIO bank number
The patch 7420d2d09b: "pinctrl: sirf: switch driver to use gpiolib
irqchip helpers" from Apr 15, 2014, leads to the following static
checker warning:

      drivers/pinctrl/sirf/pinctrl-sirf.c:578 sirfsoc_gpio_handle_irq()
      warn: buffer overflow 'sgpio_chip.sgpio_bank' 5 <= 31

Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-27 15:25:05 +02:00
Maxime Ripard
de5af04e3e pinctrl: sunxi: depend on RESET_CONTROLLER
The A31 R_PIO driver depends on the reset framework in a mandatory way. Express
this by adding a depends on the reset framework in Kconfig

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-27 15:19:21 +02:00
Linus Walleij
349b6c5355 gpio: pch: add slab include
After change 3ff35cbcfa
"gpio-pch: Fix Kconfig dependencies"
which enabled COMPILE_TEST as an alternative for the PCH
driver, we get build failures like this:

drivers/gpio/gpio-pch.c: In function 'pch_gpio_probe':
drivers/gpio/gpio-pch.c:359:2: error: implicit declaration
of function 'kzalloc' [-Werror=implicit-function-declaration]
drivers/gpio/gpio-pch.c:359:7: warning: assignment makes
pointer from integer without a cast [enabled by default]
drivers/gpio/gpio-pch.c:442:2: error: implicit declaration
of function 'kfree' [-Werror=implicit-function-declaration]

Fix this by including <linux/slab.h> explicitly.

Cc: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-27 15:15:21 +02:00
Adam Lee
3abb56de87 Bluetooth: ath3k: no need to set same pipe multiple times
Invoking usb_sndbulkpipe() on same pipe for same purpose only once is
enough.

Signed-off-by: Adam Lee <adam8157@gmail.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
2014-05-27 10:14:45 -03:00
Oliver Hartkopp
45fb4f8d81 can: only rename enabled led triggers when changing the netdev name
Commit a1ef7bd9fc ("can: rename LED trigger name on netdev renames") renames
the led trigger names according to the changed netdevice name.

As not every CAN driver supports and initializes the led triggers, checking for
the CAN private datastructure with safe_candev_priv() in the notifier chain is
not enough.

This patch adds a check when CONFIG_CAN_LEDS is enabled and the driver does not
support led triggers.

For stable 3.9+

Cc: Fabio Baltieri <fabio.baltieri@gmail.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Acked-by: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2014-05-27 15:05:41 +02:00
Daniel Golle
a0fd59511e UBIFS: add missing ui pointer in debugging code
If UBIFS_DEBUG is defined an additional assertion of the ui_lock
spinlock in do_writepage cannot compile because the ui pointer has not
been previously declared.

Fix this by declaring and initializing the ui pointer in case
UBIFS_DEBUG is defined.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2014-05-27 15:23:40 +03:00
Helmut Schaa
151d6b21f9 UBI: block: Fix error path on alloc_workqueue failure
Otherwise we'd return a random value if allocation of the workqueue fails.

Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2014-05-27 15:08:29 +03:00
hujianyang
dac3698147 UBIFS: Fix dump messages in ubifs_dump_lprops
Function ubifs_read_one_lp will not set @lp and returns
an error when ubifs_read_one_lp failed. We should not
perform ubifs_dump_lprop in this case because @lp is not
initialized as we wanted.

Signed-off-by: hujianyang <hujianyang@huawei.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2014-05-27 15:05:23 +03:00
Axel Lin
ab3ca774a2 regulator: pfuze100: Support enable/disable for fixed regulator
Current code has .enable_reg and .enable_mask settings, but the implementation
for corresponding callbacks are missing. Fix it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Tested-by: Robin Gong <b38343@freescale.com>
Acked-by: Robin Gong <b38343@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-27 12:25:57 +01:00
Fabio Estevam
29aa37cddf ASoC: sgtl5000: Fix the cache handling
Since commit e5d80e82e3 (ASoC: sgtl5000: Convert to use regmap directly) a
kernel oops is observed after a suspend/resume sequence.

The kernel oops happens inside sgtl5000_restore_regs() as codec->reg_cache is no
longer a valid pointer.

Add the remaining register entries into sgtl5000_reg_defaults[] and remove
sgtl5000_restore_regs() completely, which allows suspend/resume to work fine and
make the code simpler.

Tested on a im53-qsb board.

Reported-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Tested-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-27 12:22:15 +01:00
Sergei Shtylyov
08cf78ed41 of_pci_irq: kill useless variable in of_irq_parse_pci()
The 'lspec' variable only caused pointless promotions from u8 to u32 on each
loop iteration, while it's enough to promote only once, after the loop.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
2014-05-27 12:13:34 +01:00
Axel Lin
c0c14e6af9 regulator: ltc3589: Remove ltc3589_list_voltage_fixed function
When fixed_uV is set and n_voltage is 1, regulator core will return
rdev->desc->fixed_uV in regulator_get_voltage() and regulator_list_voltage().

Rename ltc3589_standby_regulator_ops to ltc3589_fixed_standby_regulator_ops,
this makes the code clear that the ops is for fixed voltage regulator.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-27 12:06:35 +01:00
Axel Lin
ac1d686846 regulator: ltc3589: Fix module dependency
Make this driver depend on I2C and select REGMAP_I2C to fix build failure.
Also allows this driver to be built as module.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-27 12:06:32 +01:00
Jarkko Nikula
e667487b67 ASoC: jack: Fix multiple definition of `snd_soc_jack_add_gpiods'
Commit f025d3b9c6 ("ASoC: jack: Add support for GPIO descriptor defined
jack pins") caused build error when CONFIG_GPIOLIB is not set:

sound/include/sound/soc.h:470: multiple definition of `snd_soc_jack_add_gpiods'
sound/soc/soc-core.o:sound/include/sound/soc.h:470: first defined here
make[2]: *** [sound/soc/snd-soc-core.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [sound/soc] Error 2
make: *** [sound] Error 2

Fix this by marking snd_soc_jack_add_gpiods() as static inline in soc.h.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-27 12:05:30 +01:00
Axel Lin
ae8b70c9d8 regulator: tps6586x: Remove unused to_tps6586x_dev() function
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-27 12:04:39 +01:00
Jarkko Nikula
83ad152d03 ASoC: jack: Clarify GPIO descriptor lookup in struct snd_soc_jack_gpio doc
Clarify struct snd_soc_jack_gpio documentation for the idx and name fields.
Because name is passed as connection ID to gpiod_get_index() when using GPIO
descriptor defined jack pins it is not only used as a label in debugfs but
also as function name lookup in systems that support functions names for
GPIOs.

Clarify also idx since the index is within the function of the GPIO consumer
device and not within the device itself only.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-27 12:03:44 +01:00
Mukesh Rathor
77945ca73e x86/xen: map foreign pfns for autotranslated guests
When running as a dom0 in PVH mode, foreign pfns that are accessed
must be added to our p2m which is managed by xen. This is done via
XENMEM_add_to_physmap_range hypercall. This is needed for toolstack
building guests and mapping guest memory, xentrace mapping xen pages,
etc.

Signed-off-by: Mukesh Rathor <mukesh.rathor@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2014-05-27 11:47:04 +01:00
Lee Jones
4bd5e3049b Merge tag 'regulator-tps658640' into ib-from-regulator-3.16
regulator: Support newer revisions of tps658640

There are two different variants of the tps658640 with slightly
different feature sets.
2014-05-27 11:41:14 +01:00
Fabian Frederick
00a6d7b676 ALSA: sound/aoa/codecs/onyx.c: use static const for texts
'texts' is only used as source in strcpy

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-05-27 11:58:55 +02:00
Michal Kazior
08b8aa0931 ath10k: abort incomplete scatter-gather pci tx properly
This prevents leaving incomplete scatter-gather
transfer on CE rings which can lead firmware to
crash.

Reported-By: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-27 12:32:10 +03:00
Michal Kazior
7147a13135 ath10k: protect src_ring state with ce_lock in tx_sg()
It was possible to read invalid state of CE ring
buffer indexes. This could lead to scatter-gather
transfer failure in mid-way and crash firmware
later by leaving garbage data on the ring.

Reported-By: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-27 12:32:02 +03:00
Ben Greear
4b81d17760 ath10k: ensure rx-frag ignores rssi
It seems ath10k firmware gives us no way to know
the rssi for rx-fragments.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-27 12:30:32 +03:00
Michal Kazior
7b161a7034 ath10k: dont configure bssid for ap mode
FW creates self-peer for AP internally.

This prevents ath10k from trying to create
explicit self-peer during hw recovery and thus
prevents a timeout and a warning during teardown:

  ath10k: removing stale peer $AP_BSSID from vdev_id 0

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-27 12:28:46 +03:00
Michal Kazior
911e6c0d8d ath10k: protect wep tx key setup
All configuration sequences should be protected
with conf_mutex to avoid concurrent/conflicting
requests.

This should make sure that wep tx key setup is not
performed while hw is restarted (at least).

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-27 12:28:14 +03:00
Michal Kazior
bca7bafbe2 ath10k: drain tx before restarting hw
This makes sure no further tx requests are
submitted to HTT before driver teardown.

This should prevent invalid pointer/NULL
dereference on htt tx pool in ath10k_htt_tx() in
some cases of heavy traffic.

kvalo: remove the WARN_ON() if conf_mutex is held

Reported-By: Ben Greear <greearb@candelatech.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-27 12:27:59 +03:00
Michal Kazior
c5058f5b82 ath10k: perform hw restart lazily
This reduces risk of races and prepares for more
hw restart fixes.

It also makes sense to perform teardown after
mac80211 starts its restart routine as it
guarantees it has stopped itself by then
(including tx queues).

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-27 12:27:33 +03:00
Michal Kazior
ae254433a8 ath10k: clean up start() callback
This fixes failpath when override AC pdev param
setup fails and makes other pdev params setting
fail as well.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-27 12:27:24 +03:00
Chen-Yu Tsai
b4575c6998 pinctrl: sunxi: fix pin numbers passed to register offset helpers
The pin numbers passed to sunxi_*_reg helpers to get the correct
registers should be the pin offset for the PIO block, not the
absolute number we use that is based on the alphanumeric labels
Allwinner uses.

This patch subtracts .pin_base from the pin number passed to these
functions, so the driver accesses the correct registers.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-27 11:26:01 +02:00
Anson Huang
2cc140fe36 pinctrl: add pinctrl driver for imx6sx
Add a pinctrl driver for i.MX6 SoloX based on pinctrl-imx core
driver.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-27 11:24:28 +02:00
Alexander Stein
cccb0c3e6a pinctrl/at91: Fix lockup when IRQ on PIOC and PIOD occurs
With commit 80cc3732 (pinctrl/at91: convert driver to use gpiolib irqchip)
gpiochip_set_chained_irqchip is called for PIOC, PIOD and PIOE. The
associated GPIO chip for the IRQ chip is overwritten each time, because
they share the same hard IRQ line.
Thus if an IRQ occurs on PIOC or PIOD, gpio_irq_handler will only check on
PIOE (the assigned GPIO chip) where no event occured. Thus the IRQ will
not be cleared, retriggering the ISR.
Fix that (like done before) by only set the PIOC GPIO chip to the IRQ chip
and walk the list in the irq handler.

Signed-off-by: Alexander Stein <alexanders83@web.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-27 11:13:10 +02:00
Tobias Klauser
dc5f2de6f8 i40evf: Use is_multicast_ether_addr helper
Use the is_multicast_ether_addr helper function from linux/etherdevice.h
instead of open coding the multicast address check.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-05-27 02:10:45 -07:00
Tobias Klauser
9760822b0d e1000: Use is_broadcast_ether_addr/is_multicast_ether_addr helpers
Use the is_broadcast_ether_addr/is_multicast_ether_addr helper functions
from linux/etherdevice.h instead of open coding them.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-05-27 02:10:44 -07:00
Todd Fujinaka
18cae6f7bb igb: remove redundant PHY power down register write
One of the registers used to power down the PHY was found to be wrong
(should be bit 2 not bit 1) on further inspection it was also found to
be redundant.

Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-05-27 02:10:44 -07:00
Andi Kleen
c6f3148c5b e1000e: Out of line __ew32_prepare/__ew32
Out of lining these two common inlines saves about 30k text size,
due to their errata workarounds.

14131431	2008136	1507328	17646895	10d452f	vmlinux-before-e1000e
14101415	2004040	1507328	17612783	10cbfef	vmlinux-e1000e

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-05-27 02:10:44 -07:00
David Ertman
50844bb7f4 e1000e: Fix expand setting EEE link info to all affected parts
Previously, the update_phy_task was only calling e1000_set_eee_pchlan()
for phy.type 82579.  This patch is to cause this function to be called
for 82579 and newer phy.types.  This causes the dev_spec->eee_lp_ability
to have the correct value when going into SX states.

Signed-off-by: Dave Ertman <davidx.m.ertman@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-05-27 02:10:43 -07:00
David Ertman
261a7d121e e1000e: Cleanup parenthesis around return value
Signed-off-by: Dave Ertman <davidx.m.ertman@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-05-27 02:10:43 -07:00
Todd Fujinaka
5e7ff97004 e1000e: 82574/82583 TimeSync errata for SYSTIM read
Due to a synchronization error, the value read from SYSTIML/SYSTIMH
might be incorrect.

Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-05-27 02:09:57 -07:00
Ralf Baechle
1461df59f0 MIPS: SMP: Remove plat_smp_ops cpus_done method.
Nothing was using the method and there isn't any need for this hook.  This
leaves smp_cpus_done() empty for the moment.

As suggested by Paul Bolle <pebolle@tiscali.nl>.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-27 11:06:42 +02:00
Heiko Carstens
0c91f98e28 s390: require mvcos facility for z10 and newer machines
With inlined uaccess functions we always need the mvcos facility.
Checking at each inline place if mvcos is available would make the
inlining of get_user/put_user pointless.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-05-27 10:26:05 +02:00
Martin Schwidefsky
cedbecd60a s390/boot: fix boot of compressed kernel built with gcc 4.9
Add -fno-delete-null-pointer-checks to CFLAGS for the code in
arch/s390/boot. Without the option a compressed kernel built with
gcc 4.9 won't boot.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-05-27 10:26:04 +02:00
Sebastian Ott
6adbc9236b s390/cio: remove weird assignment during argument evaluation
Get rid of a useless assignment during argument evaluation.

No functional change.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-05-27 10:26:03 +02:00
Martin Schwidefsky
b6f4296279 s390/time: cast tv_nsec to u64 prior to shift in update_vsyscall
Analog to git commit 28b92e09e2
first cast tk->wall_to_monotonic.tv_nsec to u64 before doing
the shift with tk->shift to avoid loosing relevant bits on a
32-bit kernel.

Cc: stable@vger.kernel.org # 3.13+
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-05-27 10:26:02 +02:00
Julia Lawall
94414ca08a s390/oprofile: make return of 0 explicit
Delete unnecessary local variable whose value is always 0 and that hides
the fact that the result is always 0.

A simplified version of the semantic patch that fixes this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r exists@
local idexpression ret;
expression e;
position p;
@@

-ret = 0;
... when != ret = e
return
- ret
+ 0
  ;
// </smpl>

[heiko.carstens: turn prepare_cpu_buffers into a void returning function]
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-05-27 10:26:00 +02:00