This branch contains bug fixes and new features for the devicetree code.
Most of the changes are either new testcases for the selftest code or
documentation changes. The most notable change is the addition of a
phandle resolver for use when grafting in a second device tree blob into
the core tree. The resolver isn't currently used by anything other than
the selftest module, but it will be used to support device tree
overlays; probably in the v3.19 timeframe.
Also note that I've moved my normal tree from git.secretlab.ca to
git.kernel.org.
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Merge tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux
Pull devicetree changes from Grant Likely:
"This branch contains bug fixes and new features for the devicetree
code.
Most of the changes are either new testcases for the selftest code or
documentation changes. The most notable change is the addition of a
phandle resolver for use when grafting in a second device tree blob
into the core tree. The resolver isn't currently used by anything
other than the selftest module, but it will be used to support device
tree overlays; probably in the v3.19 timeframe.
Also note that I've moved my normal tree from git.secretlab.ca to
git.kernel.org"
* tag 'devicetree-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/glikely/linux:
of/selftest: Move hash table off stack to fix large frame size
To remove non-ascii characters in of_selftest.txt
of/selftest: Use the resolver to fixup phandles
of: Introduce Device Tree resolve support.
of/selftest: Add a test for duplicate phandles
of: Don't try to search when phandle == 0
of/selftest: Test structure of device tree
of: Fix NULL dereference in selftest removal code
of: add vendor prefix for Chipidea
of: Add vendor prefix for Innolux Corporation
of: Add vendor prefix for Sitronix
devicetree: bindings: Document Gateworks vendor prefix
of: Add vendor prefix for Energy Micro
dt/documentation: add specification of dma bus information
- Checkpatch fixes
- Removal of unused code in generic_bl
- Removal of superfluous .owner attribute
New drivers/supported devices
- None
(Re-)moved drivers
- None
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Merge tag 'backlight-for-linus-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
Pull backlight driver updates from Lee Jones:
"Changes to existing drivers:
- Checkpatch fixes
- Removal of unused code in generic_bl
- Removal of superfluous .owner attribute
No new or removed drivers/supported devices"
* tag 'backlight-for-linus-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
backlight: omap1: add blank line after declarations
backlight: jornada720: Remove 'else' after a return
backlight: jornada720: Remove 'else' after a return
backlight: wm831x_bl: Add blank line after declarations
backlight: tdo24m: Add blank line after declarations
backlight: s6e63m0: Remove 'else' after a return
backlight: pcf50633: Add blank line after declarations
backlight: lp855x: Add blank line after declarations
backlight: lms501kf03: Remove 'else' after a return
backlight: lm3639: Remove unnecessary return statements
backlight: ld9040: Remove 'else' after a return
backlight: ili922x: Remove 'else' after a return
backlight: cr_bllcd: Add blank line after declarations
backlight: corgi_lcd: Add blank line after declarations
backlight: ams369fg06: Remove 'else' after a return
backlight: adp8870: Add blank line after declarations
backlight: adp8860: Add blank line after declarations
backlight: adp5520: Add blank line after declarations
backlight: generic_bl: Remove unused function
backlight: Remove .owner field for drivers using module_platform_driver
- Fix SDIO IRQ bug.
- MMC regulator improvements.
- Fix slot-gpio card detect bug.
- Add support for Driver Stage Register.
- Convert the common MMC OF parser to use GPIO descriptors.
- Convert MMC_CAP2_NO_MULTI_READ into a callback, ->multi_io_quirk().
- Some additional minor fixes.
MMC host:
- mmci: Support Qualcomm specific DML layer for DMA.
- dw_mmc: Use common MMC regulators.
- dw_mmc: Add support for Rock-chips RK3288.
- tmio: Enable runtime PM support.
- tmio: Add support for R-Car Gen2 SoCs.
- tmio: Several fixes and improvements.
- omap_hsmmc: Removed Balaji from MAINTAINERS.
- jz4740: add DMA and pre/post support.
- sdhci: Add support for Intel Braswell.
- sdhci: Several fixes and improvements.
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Merge tag 'mmc-v3.18-1' of git://git.linaro.org/people/ulf.hansson/mmc
Pull MMC updates from Ulf Hansson:
"MMC core:
- Fix SDIO IRQ bug
- MMC regulator improvements
- Fix slot-gpio card detect bug
- Add support for Driver Stage Register
- Convert the common MMC OF parser to use GPIO descriptors
- Convert MMC_CAP2_NO_MULTI_READ into a callback, ->multi_io_quirk()
- Some additional minor fixes
MMC host:
- mmci: Support Qualcomm specific DML layer for DMA
- dw_mmc: Use common MMC regulators
- dw_mmc: Add support for Rock-chips RK3288
- tmio: Enable runtime PM support
- tmio: Add support for R-Car Gen2 SoCs
- tmio: Several fixes and improvements
- omap_hsmmc: Removed Balaji from MAINTAINERS
- jz4740: add DMA and pre/post support
- sdhci: Add support for Intel Braswell
- sdhci: Several fixes and improvements"
* tag 'mmc-v3.18-1' of git://git.linaro.org/people/ulf.hansson/mmc: (119 commits)
ARM: dts: fix MMC2 regulators for Exynos5420 Arndale Octa board
mmc: sdhci-acpi: Fix Braswell eMMC timeout clock frequency
mmc: sdhci-acpi: Pass HID and UID to probe_slot
mmc: sdhci-acpi: Get UID directly from acpi_device
mmc, sdhci, bcm-kona, LLVMLinux: Remove use of __initconst
mmc: sdhci-pci: Fix Braswell eMMC timeout clock frequency
mmc: sdhci: Let a driver override timeout clock frequency
mmc: sdhci-pci: Add Bay Trail and Braswell SD card detect
mmc: sdhci-pci: Set SDHCI_QUIRK2_STOP_WITH_TC for Intel BYT host controllers
mmc: sdhci-acpi: Add a HID and UID for a SD Card host controller
mmc: sdhci-acpi: Set SDHCI_QUIRK2_STOP_WITH_TC for Intel host controllers
mmc: sdhci: Add quirk for always getting TC with stop cmd
mmc: core: restore detect line inversion semantics
mmc: Fix incorrect warning when setting 0 Hz via debugfs
mmc: Fix use of wrong device in mmc_gpiod_free_cd()
mmc: atmel-mci: fix mismatched section on atmci_cleanup_slot
mmc: rtsx_pci: Set power related cap2 macros
mmc: core: Add new power_mode MMC_POWER_UNDEFINED
mmc: sdhci: execute tuning when device is not busy
mmc: atmel-mci: Release mmc resources on failure in probe
..
This time it's a relatively calm update batch, but the amount isn't
too small in the end. Here we go over some highlights:
- ALSA core
- One major change is the support of nonatomic PCM operations.
This allows the trigger and other callbacks to call schedule(),
which would be useful for mailbox type communications. Already
some drivers (Digigram ones) have been converted to use together
with threaded irqs as an example.
- Improvement / fixes of DSD PCM format support
- HD-audio
- Large volume of rewrites are found in Realtek codec driver for
converting Dell and HP quirks to generic forms.
- Inverted dmic code cleanup from David.
- Realtek COEF access has been optimized.
- Now HD-audio jack infrastructure allows multiple callbacks, which
fixes / simplifies the jack-dependent power controls on STAC/IDT
and VIA codecs.
- Many additional device-specific fixups as usual
- A few deadcode cleanups, CA0132 code cleanup, etc.
- ASoC
- More componentization work from Lars-Peter, this time mainly
cleaning up the suspend and bias level transition callbacks.
- Real system support for the Intel drivers and a bunch of fixes
and enhancements for the associated CODEC drivers, this is going
to need a lot quirks over time due to the lack of any firmware
description of the boards.
- Jack detect support for simple card from Dylan Reid.
- A bunch of small fixes and enhancements for the Freescale
drivers.
- New drivers for Analog Devices SSM4567, Cirrus Logic CS35L32,
Everest Semiconductor ES8328 and Freescale cards using the ASRC
in newer i.MX processors.
- A few simple-card fixes, mostly cleanups but also a fix for
- interaction between GPIO 0 and simple-card.
- Misc
- Virtuoso / Oxygen updates by Clemens
- USB-audio: Yamaha MOTIF XF MIDI port name fixes
- Conversion of kernel messages to standard dev_*() in ctxfi
driver.
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Merge tag 'sound-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"This time it's a relatively calm update batch, but the amount isn't
too small in the end. Here we go over some highlights:
ALSA core:
- One major change is the support of nonatomic PCM operations. This
allows the trigger and other callbacks to call schedule(), which
would be useful for mailbox type communications. Already some
drivers (Digigram ones) have been converted to use together with
threaded irqs as an example.
- Improvement / fixes of DSD PCM format support
HD-audio:
- Large volume of rewrites are found in Realtek codec driver for
converting Dell and HP quirks to generic forms.
- Inverted dmic code cleanup from David.
- Realtek COEF access has been optimized.
- Now HD-audio jack infrastructure allows multiple callbacks, which
fixes / simplifies the jack-dependent power controls on STAC/IDT
and VIA codecs.
- Many additional device-specific fixups as usual
- A few deadcode cleanups, CA0132 code cleanup, etc.
ASoC:
- More componentization work from Lars-Peter, this time mainly
cleaning up the suspend and bias level transition callbacks.
- Real system support for the Intel drivers and a bunch of fixes and
enhancements for the associated CODEC drivers, this is going to
need a lot quirks over time due to the lack of any firmware
description of the boards.
- Jack detect support for simple card from Dylan Reid.
- A bunch of small fixes and enhancements for the Freescale drivers.
- New drivers for Analog Devices SSM4567, Cirrus Logic CS35L32,
Everest Semiconductor ES8328 and Freescale cards using the ASRC in
newer i.MX processors.
- A few simple-card fixes, mostly cleanups but also a fix for
interaction between GPIO 0 and simple-card.
Misc:
- Virtuoso / Oxygen updates by Clemens
- USB-audio: Yamaha MOTIF XF MIDI port name fixes
- Conversion of kernel messages to standard dev_*() in ctxfi driver"
* tag 'sound-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (251 commits)
ASoC: mc13783: Ensure we only try to dereference valid of_nodes
ASoC: rockchip-i2s: fix infinite loop in rockchip_snd_txctrl
ALSA: hda - Add dock port support to Thinkpad L440 (71aa:501e)
ALSA: Allow pass NULL dev for snd_pci_quirk_lookup()
ASoC: imx-es8328: Fix of_node_put() call with uninitialized object
ASoC: soc-pcm: fix sig_bits determination in soc_pcm_apply_msb()
ASoC: simple-card: Initialize headphone and mic GPIO numbers
ASoC: imx-es8328: Fix missing return code in imx_es8328_probe()
ALSA: hda - Add dock support for Thinkpad T440 (17aa:2212)
ALSA: usb: caiaq: check for cdev->n_streams > 1
ASoC: 88pm860x-codec: Fix possibly missing string termination
ASoC: core: fix use after free in snd_soc_remove_platform()
ASoC: soc-dapm: fix use after free
ALSA: hda - Make the inv dmic handling for Realtek use generic parser
ALSA: hda - Add Inverted Internal mic for Samsung Ativ book 9 (NP900X3G)
ALSA: hda - Add inverted internal mic for Asus Aspire 4830T
ASoC: Intel: byt-rt5640: fix coccinelle warnings
ASoC: fsl_esai doc: Add "fsl,vf610-esai" as compatible string
ASoC: da732x: Remove unnecessary KERN_ERR in pr_err()
ASoC: simple-card: Fix detect gpio documentation.
...
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Merge tag 'edac/v3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac
Pull edac updates from Mauro Carvalho Chehab:
"Nothing really exiting here: just one bug fix at sb_edac, and some
changes to allow other drivers to use some shared PCI addresses"
* tag 'edac/v3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac:
sb_edac: Claim a different PCI device
Move Intel SNB device ids from sb_edac to pci_ids.h
sb_edac: avoid INTERNAL ERROR message in EDAC with unspecified channel
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Merge tag 'media/v3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:
- new IR driver: hix5hd2-ir
- the virtual test driver (vivi) was replaced by vivid, with has an
almost complete set of features to emulate most v4l2 devices and
properly test all sorts of userspace apps
- the as102 driver had several bugs fixed and was properly split into a
frontend and a core driver. With that, it got promoted from staging
into mainstream
- one new CI driver got added for CIMaX SP2/SP2HF (sp2 driver)
- one new frontend driver for Toshiba ISDB-T/ISDB-S demod (tc90522)
- one new PCI driver for ISDB-T/ISDB-S (pt3 driver)
- saa7134 driver got support for go7007-based devices
- added a new PCI driver for Techwell 68xx chipsets (tw68)
- a new platform driver was added (coda)
- new tuner drivers: mxl301rf and qm1d1c0042
- a new DVB USB driver was added for DVBSky S860 & similar devices
- added a new SDR driver (hackrf)
- usbtv got audio support
- several platform drivers are now compiled with COMPILE_TEST
- a series of compiler fixup patches, making sparse/spatch happier with
the media stuff and removing several warnings, especially on those
platform drivers that didn't use to compile on x86
- Support for several new modern devices got added
- lots of other fixes, improvements and cleanups
* tag 'media/v3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (544 commits)
[media] ir-hix5hd2: fix build on c6x arch
[media] pt3: fix DTV FE I2C driver load error paths
Revert "[media] media: em28xx - remove reset_resume interface"
[media] exynos4-is: fix some warnings when compiling on arm64
[media] usb drivers: use %zu instead of %zd
[media] pci drivers: use %zu instead of %zd
[media] dvb-frontends: use %zu instead of %zd
[media] s5p-mfc: Fix several printk warnings
[media] s5p_mfc_opr: Fix warnings
[media] ti-vpe: Fix typecast
[media] s3c-camif: fix dma_addr_t printks
[media] s5p_mfc_opr_v6: get rid of warnings when compiled with 64 bits
[media] s5p_mfc_opr_v5: Fix lots of warnings on x86_64
[media] em28xx: Fix identation
[media] drxd: remove a dead code
[media] saa7146: remove return after BUG()
[media] cx88: remove return after BUG()
[media] cx88: fix cards table CodingStyle
[media] radio-sf16fmr2: declare some structs as static
[media] radio-sf16fmi: declare pnp_attached as static
...
Pull dma-mapping update from Marek Szyprowski:
"Provide the dma write coherent api (available previously on ARM
architecture) for all other architectures, which use dma_ops-based dma
mapping implementation.
This lets one to use the same code in the device drivers regardless of
the selected architecture"
* 'for-v3.18' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping:
dma-mapping: Provide write-combine allocations
s390: Implement dma_{alloc,free}_attrs()
Convert k10temp, smsc47b397, da9052, da9055 to new hwmon API.
Register ntc_thermistor driver with thermal subsystem.
Add support for F15h M60h to k10temp driver.
Add driver for MEN14F021P00 BMC HWMON driver; this required a merge
with tag mfd-hwmon-leds-watchdog-v3.18.
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Merge tag 'hwmon-for-linus-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
- new driver for menf21bmc.
- convert k10temp, smsc47b397, da9052, da9055 to new hwmon API.
- register ntc_thermistor driver with thermal subsystem.
- add support for F15h M60h to k10temp driver.
- add driver for MEN14F021P00 BMC HWMON driver; this required a merge
with tag mfd-hwmon-leds-watchdog-v3.18
* tag 'hwmon-for-linus-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (ab8500) Call kernel_power_off instead of pm_power_off
hwmon: (menf21bmc) Introduce MEN14F021P00 BMC HWMON driver
leds: leds-menf21bmc: Introduce MEN 14F021P00 BMC LED driver
watchdog: menf21bmc_wdt: Introduce MEN 14F021P00 BMC Watchdog driver
mfd: menf21bmc: Introduce MEN 14F021P00 BMC MFD Core driver
hwmon: (ntc_thermistor) Add ntc thermistor to thermal subsystem as a sensor.
hwmon: (smsc47b397) Convert to devm_hwmon_device_register_with_groups
MAINTAINERS: add entry for the PWM fan driver
hwmon: (k10temp) Convert to devm_hwmon_device_register_with_groups
hwmon: (k10temp) Add support for F15h M60h
hwmon: (da9052) Convert to devm_hwmon_device_register_with_groups
hwmon: (da9055) Convert to devm_hwmon_device_register_with_groups
hwmon: (ads1015) Use of_property_read_u32 at appropriate places
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Merge tag 'restart-handler-for-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull restart handler infrastructure from Guenter Roeck:
"This series was supposed to be pulled through various trees using it,
and I did not plan to send a separate pull request. As it turns out,
the pinctrl tree did not merge with it, is now upstream, and uses it,
meaning there are now build failures.
Please pull this series directly to fix those build failures"
* tag 'restart-handler-for-v3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
arm/arm64: unexport restart handlers
watchdog: sunxi: register restart handler with kernel restart handler
watchdog: alim7101: register restart handler with kernel restart handler
watchdog: moxart: register restart handler with kernel restart handler
arm: support restart through restart handler call chain
arm64: support restart through restart handler call chain
power/restart: call machine_restart instead of arm_pm_restart
kernel: add support for kernel restart handler call chain
Commit d3ac21cacc ("mm: Support compiling
out madvise and fadvise") incorrectly made fadvise conditional on
CONFIG_MMU. (The merged branch unintentionally incorporated v1 of the
patch rather than the fixed v2.) Apply the delta from v1 to v2, to
allow fadvise without CONFIG_MMU.
Reported-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Inconsistently, the raw_* IRQ routines do not interact with and update
the irqflags tracing and lockdep state, whereas the raw_* spinlock
interfaces do.
This causes problems in p1275_cmd_direct() because we disable hardirqs
by hand using raw_local_irq_restore() and then do a raw_spin_lock()
which triggers a lockdep trace because the CPU's hw IRQ state doesn't
match IRQ tracing's internal software copy of that state.
The CPU's irqs are disabled, yet current->hardirqs_enabled is true.
====================
reboot: Restarting system
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:3536 check_flags+0x7c/0x240()
DEBUG_LOCKS_WARN_ON(current->hardirqs_enabled)
Modules linked in: openpromfs
CPU: 0 PID: 1 Comm: systemd-shutdow Tainted: G W 3.17.0-dirty #145
Call Trace:
[000000000045919c] warn_slowpath_common+0x5c/0xa0
[0000000000459210] warn_slowpath_fmt+0x30/0x40
[000000000048f41c] check_flags+0x7c/0x240
[0000000000493280] lock_acquire+0x20/0x1c0
[0000000000832b70] _raw_spin_lock+0x30/0x60
[000000000068f2fc] p1275_cmd_direct+0x1c/0x60
[000000000068ed28] prom_reboot+0x28/0x40
[000000000043610c] machine_restart+0x4c/0x80
[000000000047d2d4] kernel_restart+0x54/0x80
[000000000047d618] SyS_reboot+0x138/0x200
[00000000004060b4] linux_sparc_syscall32+0x34/0x60
---[ end trace 5c439fe81c05a100 ]---
possible reason: unannotated irqs-off.
irq event stamp: 2010267
hardirqs last enabled at (2010267): [<000000000049a358>] vprintk_emit+0x4b8/0x580
hardirqs last disabled at (2010266): [<0000000000499f08>] vprintk_emit+0x68/0x580
softirqs last enabled at (2010046): [<000000000045d278>] __do_softirq+0x378/0x4a0
softirqs last disabled at (2010039): [<000000000042bf08>] do_softirq_own_stack+0x28/0x40
Resetting ...
====================
Use local_* variables of the hw IRQ interfaces so that IRQ tracing sees
all of our changes.
Reported-by: Meelis Roos <mroos@linux.ee>
Tested-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli says:
====================
net: bcmgenet & systemport fixes
This patch series fixes an off-by-one error introduced during a previous
change, and the two other fixes fix a wake depth imbalance situation for
the Wake-on-LAN interrupt line.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Multiple enable_irq_wake() calls will keep increasing the IRQ
wake_depth, which ultimately leads to the following types of
situation:
1) enable Wake-on-LAN interrupt w/o password
2) enable Wake-on-LAN interrupt w/ password
3) enable Wake-on-LAN interrupt w/o password
4) disable Wake-on-LAN interrupt
After step 4), SYSTEMPORT would always wake-up the system no matter what
wake-up device we use, which is not what we want. Fix this by making
sure there are no unbalanced enable_irq_wake() calls.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Multiple enable_irq_wake() calls will keep increasing the IRQ
wake_depth, which ultimately leads to the following types of
situation:
1) enable Wake-on-LAN interrupt w/o password
2) enable Wake-on-LAN interrupt w/ password
3) enable Wake-on-LAN interrupt w/o password
4) disable Wake-on-LAN interrupt
After step 4), GENET would always wake-up the system no matter what
wake-up device we use, which is not what we want. Fix this by making
sure there are no unbalanced enable_irq_wake() calls.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit b629be5c83 ("net: bcmgenet: check
harder for out of memory conditions") moved the increment of the local
read pointer *before* reading from the hardware descriptor using
dmadesc_get_length_status(), which creates an off-by-one situation.
Fix this by moving again the read_ptr increment after we have read the
hardware descriptor to get both the control block and the read pointer
back in sync.
Fixes: b629be5c83 ("net: bcmgenet: check harder for out of memory conditions")
Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Petri Gynther <pgynther@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet says:
====================
net: fix races accessing page->_count
This is illegal to use atomic_set(&page->_count, ...) even if we 'own'
the page. Other entities in the kernel need to use get_page_unless_zero()
to get a reference to the page before testing page properties, so we could
loose a refcount increment.
The only case it is valid is when page->_count is 0, we can use this in
__netdev_alloc_frag()
Note that I never seen crashes caused by these races, the issue was reported
by Andres Lagar-Cavilla and Hugh Dickins.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This is illegal to use atomic_set(&page->_count, ...) even if we 'own'
the page. Other entities in the kernel need to use get_page_unless_zero()
to get a reference to the page before testing page properties, so we could
loose a refcount increment.
The only case it is valid is when page->_count is 0
Fixes: 540eb7bf0b ("net: Update alloc frag to reduce get/put page usage and recycle pages")
Signed-off-by: Eric Dumaze <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is illegal to use atomic_set(&page->_count, ...) even if we 'own'
the page. Other entities in the kernel need to use get_page_unless_zero()
to get a reference to the page before testing page properties, so we could
loose a refcount increment.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is illegal to use atomic_set(&page->_count, 2) even if we 'own'
the page. Other entities in the kernel need to use get_page_unless_zero()
to get a reference to the page before testing page properties, so we could
loose a refcount increment.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is illegal to use atomic_set(&page->_count, 2) even if we 'own'
the page. Other entities in the kernel need to use get_page_unless_zero()
to get a reference to the page before testing page properties, so we could
loose a refcount increment.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is illegal to use atomic_set(&page->_count, 2) even if we 'own'
the page. Other entities in the kernel need to use get_page_unless_zero()
to get a reference to the page before testing page properties, so we could
loose a refcount increment.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The KSZ8021 and KSZ8031 support RMII reference input clocks of 25MHz
and 50MHz. Both PHYs differ in the default frequency they expect
after reset. If this differs from the actual input clock, then
register 0x1f bit 7 must be changed.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch addresses a kernel unaligned access bug seen on a sparc64 system
with an igb adapter. Specifically the __skb_flow_get_ports was returning a
be32 pointer which was then having the value directly returned.
In order to prevent this it is actually easier to simply not populate the
ports or address values when an skb is not present. In this case the
assumption is that the data isn't needed and rather than slow down the
faster aligned accesses by making them have to assume the unaligned path on
architectures that don't support efficent unaligned access it makes more
sense to simply switch off the bits that were copying the source and
destination address/port for the case where we only care about the protocol
types and lengths which are normally 16 bit fields anyway.
Reported-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1. sk_run_filter has been renamed, sk_filter() is using SK_RUN_FILTER.
2. Remove wrong comments about storing intermediate value.
3. replace sk_run_filter with __bpf_prog_run for check_load_and_stores's
comments
Cc: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
__sk_run_filter has been renamed as __bpf_prog_run, so replace them in comments
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jason Baron says:
====================
macvlan: optimize receive path
So after porting this optimization to net-next, I found that the netperf
results of TCP_RR regress right at the maximum peak of transactions/sec. That
is as I increase the number of threads via the first argument to super_netperf,
the number of transactions/sec keep increasing, peak, and then start
decreasing. It is right at the peak, that I see a small regression with this
patch (see results in patch 2/2).
Without the patch, the ksoftirqd threads are the top cpu consumers threads on
the system, since the extra 'netif_rx()', is queuing more softirq work, whereas
with the patch, the ksoftirqd threads are below all of the 'netserver' threads
in terms of their cpu usage. So there appears to be some interaction between how
softirqs are serviced at the peak here and this patch. I think the test results
are still supportive of this approach, but I wanted to be clear on my findings.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The netif_rx() call on the fast path of macvlan_handle_frame() appears to
be there to ensure that we properly throttle incoming packets. However, it
would appear as though the proper throttling is already in place for all
possible ingress paths, and that the call is redundant. If packets are arriving
from the physical NIC, we've already throttled them by this point. Otherwise,
if they are coming via macvlan_queue_xmit(), it calls either
'dev_forward_skb()', which ends up calling netif_rx_internal(), or else in
the broadcast case, we are throttling via macvlan_broadcast_enqueue().
The test results below are from off the box to an lxc instance running macvlan.
Once the tranactions/sec stop increasing, the cpu idle time has gone to 0.
Results are from a quad core Intel E3-1270 V2@3.50GHz box with bnx2x 10G card.
for i in {10,100,200,300,400,500};
do super_netperf $i -H $ip -t TCP_RR; done
Average of 5 runs.
trans/sec trans/sec
(3.17-rc7-net-next) (3.17-rc7-net-next + this patch)
---------- ----------
208101 211534 (+1.6%)
839493 850162 (+1.3%)
845071 844053 (-.12%)
816330 819623 (+.4%)
778700 789938 (+1.4%)
735984 754408 (+2.5%)
Signed-off-by: Jason Baron <jbaron@akamai.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pass last argument to macvlan_count_rx() as the correct bool type.
Signed-off-by: Jason Baron <jbaron@akamai.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Iyappan Subramanian says:
====================
Add 10GbE support to APM X-Gene SoC ethernet driver
Adding 10GbE support to APM X-Gene SoC ethernet driver.
v4: Address comments from v3
* dtb: resolved merge conflict for the net tree
v3: Address comments from v2
* dtb: changed to use all-zeros for the mac address
v2: Address comments from v1
* created preparatory patch to review before adding new functionality
* dtb: updated to use tabs consistently
v1:
* Initial version
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Added 10GbE support
- Removed unused macros/variables
- Moved mac_init call to the end of hardware init
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Rearranged code to pave the way for adding 10GbE support
- Added mac_ops structure containing function pointers for mac specific functions
- Added port_ops structure containing function pointers for port specific functions
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Added 10GbE interface and clock nodes.
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
minimal configurations where EPOLL, PERF_EVENTS, etc are disabled,
but NET is enabled, are failing to build with link error:
kernel/built-in.o: In function `bpf_prog_load':
syscall.c:(.text+0x3b728): undefined reference to `anon_inode_getfd'
fix it by selecting ANON_INODES when NET is enabled
Reported-by: Michal Sojka <sojkam1@fel.cvut.cz>
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso says:
====================
Netfilter fixes for net-next
This batch contains two fixes for what you have in your net-next,
they are:
1) Remove nf_send_reset6() from header file. This function now resides
in the nf_reject_ipv6 module. Reported by Eric Dumazet.
2) Fix wrong NFT_REJECT_ICMPX_MAX definition and adjust code to fix
errors reported by Dan Carpenter's static analysis tools.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
John W. Linville says:
====================
pull request: wireless-next 2014-10-09
Please pull this batch of fixes intended for the 3.18 stream!
Andrea Merello makes rtl818x_pci use a more reasonable transmission
rate for HW generated frames.
Fabian Frederick tweaks some kernel-doc bits to avoid warnings.
Larry Finger corrects a possible unaligned access in the rtlwifi code.
Marek Puzyniak avoids a kernel panic in ath9k_hw_reset.
Sujith Manoharan goes for the hat trick -- he fixes a smatch warning
in the shared ath code, he fixes a crash in ath9k, and he corrects
a sequence number assignment problem in ath9k too.
For ease of merging, I pulled the last bits of the wireless tree as well...
Please let me know if there are problems!
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Testing revealed that the local variable mc_filter was dimensioned
incorrectly for all possible configurations and get_mac_addr should
have been set_mac_addr (a typo). Make sure mc_filter is dimensioned
to 8 32-bit unsigned longs - the largest size of the Synopsys
multicast filter register set.
Signed-off-by: Vince Bridgers <vbridger@opensource.altera.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If NO_DMA=y:
drivers/built-in.o: In function `rxq_deinit':
pxa168_eth.c:(.text+0x2a2f2e): undefined reference to `dma_free_coherent'
drivers/built-in.o: In function `txq_reclaim':
pxa168_eth.c:(.text+0x2a3044): undefined reference to `dma_unmap_single'
drivers/built-in.o: In function `txq_deinit':
pxa168_eth.c:(.text+0x2a310a): undefined reference to `dma_free_coherent'
drivers/built-in.o: In function `txq_init':
pxa168_eth.c:(.text+0x2a3226): undefined reference to `dma_alloc_coherent'
drivers/built-in.o: In function `rxq_init':
pxa168_eth.c:(.text+0x2a32d4): undefined reference to `dma_alloc_coherent'
drivers/built-in.o: In function `init_hash_table':
pxa168_eth.c:(.text+0x2a3354): undefined reference to `dma_alloc_coherent'
drivers/built-in.o: In function `rxq_refill':
pxa168_eth.c:(.text+0x2a345a): undefined reference to `dma_map_single'
drivers/built-in.o: In function `rxq_process':
pxa168_eth.c:(.text+0x2a39cc): undefined reference to `dma_unmap_single'
drivers/built-in.o: In function `pxa168_eth_remove':
pxa168_eth.c:(.text+0x2a3b84): undefined reference to `dma_free_coherent'
drivers/built-in.o: In function `pxa168_eth_start_xmit':
pxa168_eth.c:(.text+0x2a3e8a): undefined reference to `dma_map_single'
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull percpu updates from Tejun Heo:
"A lot of activities on percpu front. Notable changes are...
- percpu allocator now can take @gfp. If @gfp doesn't contain
GFP_KERNEL, it tries to allocate from what's already available to
the allocator and a work item tries to keep the reserve around
certain level so that these atomic allocations usually succeed.
This will replace the ad-hoc percpu memory pool used by
blk-throttle and also be used by the planned blkcg support for
writeback IOs.
Please note that I noticed a bug in how @gfp is interpreted while
preparing this pull request and applied the fix 6ae833c7fe
("percpu: fix how @gfp is interpreted by the percpu allocator")
just now.
- percpu_ref now uses longs for percpu and global counters instead of
ints. It leads to more sparse packing of the percpu counters on
64bit machines but the overhead should be negligible and this
allows using percpu_ref for refcnting pages and in-memory objects
directly.
- The switching between percpu and single counter modes of a
percpu_ref is made independent of putting the base ref and a
percpu_ref can now optionally be initialized in single or killed
mode. This allows avoiding percpu shutdown latency for cases where
the refcounted objects may be synchronously created and destroyed
in rapid succession with only a fraction of them reaching fully
operational status (SCSI probing does this when combined with
blk-mq support). It's also planned to be used to implement forced
single mode to detect underflow more timely for debugging.
There's a separate branch percpu/for-3.18-consistent-ops which cleans
up the duplicate percpu accessors. That branch causes a number of
conflicts with s390 and other trees. I'll send a separate pull
request w/ resolutions once other branches are merged"
* 'for-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (33 commits)
percpu: fix how @gfp is interpreted by the percpu allocator
blk-mq, percpu_ref: start q->mq_usage_counter in atomic mode
percpu_ref: make INIT_ATOMIC and switch_to_atomic() sticky
percpu_ref: add PERCPU_REF_INIT_* flags
percpu_ref: decouple switching to percpu mode and reinit
percpu_ref: decouple switching to atomic mode and killing
percpu_ref: add PCPU_REF_DEAD
percpu_ref: rename things to prepare for decoupling percpu/atomic mode switch
percpu_ref: replace pcpu_ prefix with percpu_
percpu_ref: minor code and comment updates
percpu_ref: relocate percpu_ref_reinit()
Revert "blk-mq, percpu_ref: implement a kludge for SCSI blk-mq stall during probe"
Revert "percpu: free percpu allocation info for uniprocessor system"
percpu-refcount: make percpu_ref based on longs instead of ints
percpu-refcount: improve WARN messages
percpu: fix locking regression in the failure path of pcpu_alloc()
percpu-refcount: add @gfp to percpu_ref_init()
proportions: add @gfp to init functions
percpu_counter: add @gfp to percpu_counter_init()
percpu_counter: make percpu_counters_lock irq-safe
...
Pull cgroup updates from Tejun Heo:
"Nothing too interesting. Just a handful of cleanup patches"
* 'for-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
Revert "cgroup: remove redundant variable in cgroup_mount()"
cgroup: remove redundant variable in cgroup_mount()
cgroup: fix missing unlock in cgroup_release_agent()
cgroup: remove CGRP_RELEASABLE flag
perf/cgroup: Remove perf_put_cgroup()
cgroup: remove redundant check in cgroup_ino()
cpuset: simplify proc_cpuset_show()
cgroup: simplify proc_cgroup_show()
cgroup: use a per-cgroup work for release agent
cgroup: remove bogus comments
cgroup: remove redundant code in cgroup_rmdir()
cgroup: remove some useless forward declarations
cgroup: fix a typo in comment.
Pull libata update from Tejun Heo:
"AHCI is getting per-port irq handling and locks for better
scalability. The gain is not huge but measureable with multiple high
iops devices connected to the same host; however, the value of
threaded IRQ handling seems negligible for AHCI and it likely will
revert to non-threaded handling soon.
Another noteworthy change is George Spelvin's "libata: Un-break ATA
blacklist". During 3.17 devel cycle, the libata blacklist glob
matching got generalized and rewritten; unfortunately, the patch
forgot to swap arguments to match the new match function and ended up
breaking blacklist matching completely. It got noticed only a couple
days ago so it couldn't make for-3.17-fixes either. :(
Other than the above two, nothing too interesting - the usual cleanup
churns and device-specific changes"
* 'for-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (22 commits)
pata_serverworks: disable 64-KB DMA transfers on Broadcom OSB4 IDE Controller
libata: Un-break ATA blacklist
AHCI: Do not acquire ata_host::lock from single IRQ handler
AHCI: Optimize single IRQ interrupt processing
AHCI: Do not read HOST_IRQ_STAT reg in multi-MSI mode
AHCI: Make few function names more descriptive
AHCI: Move host activation code into ahci_host_activate()
AHCI: Move ahci_host_activate() function to libahci.c
AHCI: Pass SCSI host template as arg to ahci_host_activate()
ata: pata_imx: Use the SIMPLE_DEV_PM_OPS() macro
AHCI: Cleanup checking of multiple MSIs/SLM modes
libata-sff: Fix controllers with no ctl port
ahci_xgene: Fix the error print invalid resource for APM X-Gene SoC AHCI SATA Host Controller driver.
libata: change ata_<foo>_printk routines to return void
ata: qcom: Add device tree bindings information
ahci-platform: Bump max number of clocks to 5
ahci: ahci_p5wdh_workaround - constify DMI table
libahci_platform: Staticize ahci_platform_<en/dis>able_phys()
pata_platform: Remove useless irq_flags field
pata_of_platform: Remove "electra-ide" quirk
...
The latest linus git tip (3.18-rc1) fails with the following build failure. Fix
this by making PTP support explicit for fm10k driver.
rivers/built-in.o: In function `fm10k_ptp_register':
(.text+0x12e760): undefined reference to `ptp_clock_registER'
drivers/built-in.o: In function `fm10k_ptp_unregister':
(.text+0x12e7dc): undefined reference to `ptp_clock_unregister'
Makefile:930: recipe for target 'vmlinux' failed
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[linux-devel:devel-hourly-2014100909 3763/3915] drivers/net/ethernet/freescale/fs_enet/mac-scc.c:119:32: error: 'SCCE_ENET_TXF' undeclared
Due to patch d43a396 net: fs_enet: Add NAPI TX, it appears that some target
compilations are broken.
This is due to the fact that unlike the FEC, the SCC and FCC don't have a TXF
event (complete Frame transmitted) but only TXB (buffer transmitted).
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Merge patch-bomb from Andrew Morton:
- part of OCFS2 (review is laggy again)
- procfs
- slab
- all of MM
- zram, zbud
- various other random things: arch, filesystems.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (164 commits)
nosave: consolidate __nosave_{begin,end} in <asm/sections.h>
include/linux/screen_info.h: remove unused ORIG_* macros
kernel/sys.c: compat sysinfo syscall: fix undefined behavior
kernel/sys.c: whitespace fixes
acct: eliminate compile warning
kernel/async.c: switch to pr_foo()
include/linux/blkdev.h: use NULL instead of zero
include/linux/kernel.h: deduplicate code implementing clamp* macros
include/linux/kernel.h: rewrite min3, max3 and clamp using min and max
alpha: use Kbuild logic to include <asm-generic/sections.h>
frv: remove deprecated IRQF_DISABLED
frv: remove unused cpuinfo_frv and friends to fix future build error
zbud: avoid accessing last unused freelist
zsmalloc: simplify init_zspage free obj linking
mm/zsmalloc.c: correct comment for fullness group computation
zram: use notify_free to account all free notifications
zram: report maximum used memory
zram: zram memory size limitation
zsmalloc: change return value unit of zs_get_total_size_bytes
zsmalloc: move pages_allocated to zs_pool
...
The different architectures used their own (and different) declarations:
extern __visible const void __nosave_begin, __nosave_end;
extern const void __nosave_begin, __nosave_end;
extern long __nosave_begin, __nosave_end;
Consolidate them using the first variant in <asm/sections.h>.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The ORIG_* macros definitions to access struct screen_info members and all
of their users were removed 7 years ago by commit 3ea3351000
("Remove magic macros for screen_info structure members"), but (only) the
definitions reappeared a few days later in commit ee8e7cfe9d ("Make
asm-x86/bootparam.h includable from userspace.").
Remove them for good. Amen.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix undefined behavior and compiler warning by replacing right shift 32
with upper_32_bits macro
Signed-off-by: Scotty Bauer <sbauer@eng.utah.edu>
Cc: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
