This patch adds missing some description of sysfs entries in
- Documentation/ABI/testing/sysfs-fs-f2fs
- Documentation/filesystems/f2fs.txt.
And it adds a maintained document entry of F2FS in MAINTAINERS.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This attribute can be used to set and read the value and the
mask of the skb mark which will be used to classify the
source non-mesh client as ISOLATED. In this way a client can
be advertised as such and the mark can potentially be
restored at the receiving node before delivering the skb.
This can be helpful for creating network wide netfilter
policies.
This sysfs file expects a string of the shape "$mark/$mask".
Where $mark has to be a 32-bit number in any base, while
$mask must be a 32bit mask expressed in hex base. Only bits
in $mark covered by the bitmask are really stored.
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Add a Documentation/ABI entry for
/sys/devices/system/cpu/intel_pstate/max_perf_pct,
/sys/devices/system/cpu/intel_pstate/min_perf_pct, and
/sys/devices/system/cpu/intel_pstate/no_turbo.
Cc: Dirk Brandewie <dirk.brandewie@gmail.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Currently each rbd device is allocated its own major number, which
leads to a hard limit of 230-250 images mapped at once. This commit
adds support for a new single-major device number allocation scheme,
which is hidden behind a new single_major boolean module parameter and
is disabled by default for backwards compatibility reasons. (Old
userspace cannot correctly unmap images mapped under single-major
scheme and would essentially just unmap a random image, if that.)
$ rbd showmapped
id pool image snap device
0 rbd b100 - /dev/rbd0
1 rbd b101 - /dev/rbd1
2 rbd b102 - /dev/rbd2
3 rbd b103 - /dev/rbd3
Old scheme (modprobe rbd):
$ ls -l /dev/rbd*
brw-rw---- 1 root disk 253, 0 Dec 10 12:24 /dev/rbd0
brw-rw---- 1 root disk 252, 0 Dec 10 12:28 /dev/rbd1
brw-rw---- 1 root disk 252, 1 Dec 10 12:28 /dev/rbd1p1
brw-rw---- 1 root disk 252, 2 Dec 10 12:28 /dev/rbd1p2
brw-rw---- 1 root disk 252, 3 Dec 10 12:28 /dev/rbd1p3
brw-rw---- 1 root disk 251, 0 Dec 10 12:28 /dev/rbd2
brw-rw---- 1 root disk 251, 1 Dec 10 12:28 /dev/rbd2p1
brw-rw---- 1 root disk 250, 0 Dec 10 12:24 /dev/rbd3
New scheme (modprobe rbd single_major=Y):
$ ls -l /dev/rbd*
brw-rw---- 1 root disk 253, 0 Dec 10 12:30 /dev/rbd0
brw-rw---- 1 root disk 253, 256 Dec 10 12:30 /dev/rbd1
brw-rw---- 1 root disk 253, 257 Dec 10 12:30 /dev/rbd1p1
brw-rw---- 1 root disk 253, 258 Dec 10 12:30 /dev/rbd1p2
brw-rw---- 1 root disk 253, 259 Dec 10 12:30 /dev/rbd1p3
brw-rw---- 1 root disk 253, 512 Dec 10 12:30 /dev/rbd2
brw-rw---- 1 root disk 253, 513 Dec 10 12:30 /dev/rbd2p1
brw-rw---- 1 root disk 253, 768 Dec 10 12:30 /dev/rbd3
(major 253 was assigned dynamically at module load time)
The new limit is 4096 images mapped at once, and it comes from the fact
that, as before, 256 minor numbers are reserved for each mapping.
(A follow-up commit changes the number of minors reserved and the way
we deal with partitions over that number.)
If single_major is set to true, two new sysfs interfaces show up:
/sys/bus/rbd/{add,remove}_single_major. These are to be used instead
of /sys/bus/rbd/{add,remove}, which are disabled for backwards
compatibility reasons outlined above.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Introduce /sys/bus/rbd/devices/<id>/minor sysfs attribute for exporting
rbd whole disk minor numbers. This is a step towards single-major
device number allocation scheme, but also a good thing on its own.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
kexec-tools use boot_params for getting the 1st kernel hardware_subarch,
the kexec kernel EFI runtime support also needs to read the old efi_info
from boot_params. Currently it exists in debugfs which is not a good
place for such infomation. Per HPA, we should avoid "sploit debugfs".
In this patch /sys/kernel/boot_params are exported, also the setup_data is
exported as a subdirectory. kexec-tools is using debugfs for hardware_subarch
for a long time now so we're not removing it yet.
Structure is like below:
/sys/kernel/boot_params
|__ data /* boot_params in binary*/
|__ setup_data
| |__ 0 /* the first setup_data node */
| | |__ data /* setup_data node 0 in binary*/
| | |__ type /* setup_data type of setup_data node 0, hex string */
[snip]
|__ version /* boot protocal version (in hex, "0x" prefixed)*/
Signed-off-by: Dave Young <dyoung@redhat.com>
Acked-by: Borislav Petkov <bp@suse.de>
Tested-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
kexec kernel will need exactly same mapping for EFI runtime memory
ranges. Thus here export the runtime ranges mapping to sysfs,
kexec-tools will assemble them and pass to 2nd kernel via setup_data.
Introducing a new directory /sys/firmware/efi/runtime-map just like
/sys/firmware/memmap. Containing below attribute in each file of that
directory:
attribute num_pages phys_addr type virt_addr
Signed-off-by: Dave Young <dyoung@redhat.com>
Tested-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Export fw_vendor, runtime and config table physical addresses to
/sys/firmware/efi/{fw_vendor,runtime,config_table} because kexec kernels
need them.
From EFI spec these 3 variables will be updated to virtual address after
entering virtual mode. But kernel startup code will need the physical
address.
Signed-off-by: Dave Young <dyoung@redhat.com>
Tested-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
The PCI MSI sysfs code is a mess with kobjects for things that don't really
need to be kobjects. This patch creates attributes dynamically for the MSI
interrupts instead of using kobjects.
Note, this removes a directory from sysfs. Old MSI kobjects:
pci_device
└── msi_irqs
└── 40
└── mode
New MSI attributes:
pci_device
└── msi_irqs
└── 40
As there was only one file "mode" with the kobject model, the interrupt
number is now a file that returns the "mode" of the interrupt (msi vs.
msix).
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Sysfs interfaces for the GenWQE card. There are attributes to query
the version of the bitstream as well as some for the driver. For
debugging, please also see the debugfs interfaces of this driver.
Signed-off-by: Frank Haverkamp <haver@linux.vnet.ibm.com>
Co-authors: Joerg-Stephan Vogt <jsvogt@de.ibm.com>,
Michael Jung <MIJUNG@de.ibm.com>,
Michael Ruettger <michael@ibmra.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Debugfs interfaces for the GenWQE card. Help to debug potential
problems. Dump internal chip state for debugging and failure
determination.
Signed-off-by: Frank Haverkamp <haver@linux.vnet.ibm.com>
Co-authors: Joerg-Stephan Vogt <jsvogt@de.ibm.com>,
Michael Jung <MIJUNG@de.ibm.com>,
Michael Ruettger <michael@ibmra.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add support for using FunctionFS in configfs-based USB gadgets.
[ balbi@ti.com : removed redefinition of VERBOSE_DEBUG and few
trailing whitespaces ]
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Add Tahvo USB transceiver driver.
Based on old code from linux-omap tree. The original driver was written
by Juha Yrjölä, Tony Lindgren, and Timo Teräs.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Felipe Balbi <balbi@ti.com>
There are already humidity sensors in the hwmon subsystem,
so we use their unit (milli percent) here as well.
Signed-off-by: Harald Geyer <harald@ccbib.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Add support for using the sourcesink function in gadgets composed with
configfs.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Add support for using the loopback USB function in gadgets composed with
configfs.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
- Re-enable flow steering verbs with new improved userspace ABI
- Fixes for slow connection due to GID lookup scalability
- IPoIB fixes
- Many fixes to HW drivers including mlx4, mlx5, ocrdma and qib
- Further improvements to SRP error handling
- Add new transport type for Cisco usNIC
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Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull infiniband/rdma updates from Roland Dreier:
- Re-enable flow steering verbs with new improved userspace ABI
- Fixes for slow connection due to GID lookup scalability
- IPoIB fixes
- Many fixes to HW drivers including mlx4, mlx5, ocrdma and qib
- Further improvements to SRP error handling
- Add new transport type for Cisco usNIC
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (66 commits)
IB/core: Re-enable create_flow/destroy_flow uverbs
IB/core: extended command: an improved infrastructure for uverbs commands
IB/core: Remove ib_uverbs_flow_spec structure from userspace
IB/core: Use a common header for uverbs flow_specs
IB/core: Make uverbs flow structure use names like verbs ones
IB/core: Rename 'flow' structs to match other uverbs structs
IB/core: clarify overflow/underflow checks on ib_create/destroy_flow
IB/ucma: Convert use of typedef ctl_table to struct ctl_table
IB/cm: Convert to using idr_alloc_cyclic()
IB/mlx5: Fix page shift in create CQ for userspace
IB/mlx4: Fix device max capabilities check
IB/mlx5: Fix list_del of empty list
IB/mlx5: Remove dead code
IB/core: Encorce MR access rights rules on kernel consumers
IB/mlx4: Fix endless loop in resize CQ
RDMA/cma: Remove unused argument and minor dead code
RDMA/ucma: Discard events for IDs not yet claimed by user space
IB/core: Add Cisco usNIC rdma node and transport types
RDMA/nes: Remove self-assignment from nes_query_qp()
IB/srp: Report receive errors correctly
...
Pull HID updates from Jiri Kosina:
- i2c-hid is not querying init reports any more, as it's not mandated
by the spec, and annoys quite a few devices during enumeration, by
Bibek Basu
- a lot of fixes for Logitech devices, by Simon Wood
- hid-apple now has an option to switch between Option and Command
mode, by Nanno Langstraat
- Some more workarounds for severely broken ELO devices, by Oliver
Neukum
- more devm conversions, by Benjamin Tissoires
- wiimote correctness fixes, by David Herrmann
- a lot of added support for various new device IDs and random small
fixes here and there"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (34 commits)
HID: enable Mayflash USB Gamecube Adapter
HID: sony: Add force feedback support for Dualshock3 USB
Input: usbtouchscreen: ignore eGalax/D-Wav/EETI HIDs
HID: don't ignore eGalax/D-Wav/EETI HIDs
HID: roccat: add missing special driver declarations
HID:hid-lg4ff: Correct Auto-center strength for wheels other than MOMO and MOMO2
HID:hid-lg4ff: Initialize device properties before we touch autocentering.
HID:hid-lg4ff: ensure ConstantForce is disabled when set to 0
HID:hid-lg4ff: Switch autocentering off when strength is set to zero.
HID:hid-lg4ff: Scale autocentering force properly on Logitech wheel
HID: roccat: fix Coverity CID 141438
HID: multitouch: add manufacturer to Kconfig help text
HID: logitech-dj: small cleanup in rdcat()
HID: remove self-assignment from hid_input_report
HID: hid-sensor-hub: fix report size
HID: i2c-hid: Stop querying for init reports
HID: roccat: add support for Ryos MK keyboards
HID: roccat: generalize some common code
HID: roccat: add new device return value
HID: wiimote: add pro-controller analog stick calibration
...
- New power capping framework and the the Intel Running Average Power
Limit (RAPL) driver using it from Srinivas Pandruvada and Jacob Pan.
- Addition of the in-kernel switching feature to the arm_big_little
cpufreq driver from Viresh Kumar and Nicolas Pitre.
- cpufreq support for iMac G5 from Aaro Koskinen.
- Baytrail processors support for intel_pstate from Dirk Brandewie.
- cpufreq support for Midway/ECX-2000 from Mark Langsdorf.
- ARM vexpress/TC2 cpufreq support from Sudeep KarkadaNagesha.
- ACPI power management support for the I2C and SPI bus types from
Mika Westerberg and Lv Zheng.
- cpufreq core fixes and cleanups from Viresh Kumar, Srivatsa S Bhat,
Stratos Karafotis, Xiaoguang Chen, Lan Tianyu.
- cpufreq drivers updates (mostly fixes and cleanups) from Viresh Kumar,
Aaro Koskinen, Jungseok Lee, Sudeep KarkadaNagesha, Lukasz Majewski,
Manish Badarkhe, Hans-Christian Egtvedt, Evgeny Kapaev.
- intel_pstate updates from Dirk Brandewie and Adrian Huang.
- ACPICA update to version 20130927 includig fixes and cleanups and
some reduction of divergences between the ACPICA code in the kernel
and ACPICA upstream in order to improve the automatic ACPICA patch
generation process. From Bob Moore, Lv Zheng, Tomasz Nowicki,
Naresh Bhat, Bjorn Helgaas, David E Box.
- ACPI IPMI driver fixes and cleanups from Lv Zheng.
- ACPI hotplug fixes and cleanups from Bjorn Helgaas, Toshi Kani,
Zhang Yanfei, Rafael J Wysocki.
- Conversion of the ACPI AC driver to the platform bus type and
multiple driver fixes and cleanups related to ACPI from Zhang Rui.
- ACPI processor driver fixes and cleanups from Hanjun Guo, Jiang Liu,
Bartlomiej Zolnierkiewicz, Mathieu Rhéaume, Rafael J Wysocki.
- Fixes and cleanups and new blacklist entries related to the ACPI
video support from Aaron Lu, Felipe Contreras, Lennart Poettering,
Kirill Tkhai.
- cpuidle core cleanups from Viresh Kumar and Lorenzo Pieralisi.
- cpuidle drivers fixes and cleanups from Daniel Lezcano, Jingoo Han,
Bartlomiej Zolnierkiewicz, Prarit Bhargava.
- devfreq updates from Sachin Kamat, Dan Carpenter, Manish Badarkhe.
- Operation Performance Points (OPP) core updates from Nishanth Menon.
- Runtime power management core fix from Rafael J Wysocki and update
from Ulf Hansson.
- Hibernation fixes from Aaron Lu and Rafael J Wysocki.
- Device suspend/resume lockup detection mechanism from Benoit Goby.
- Removal of unused proc directories created for various ACPI drivers
from Lan Tianyu.
- ACPI LPSS driver fix and new device IDs for the ACPI platform scan
handler from Heikki Krogerus and Jarkko Nikula.
- New ACPI _OSI blacklist entry for Toshiba NB100 from Levente Kurusa.
- Assorted fixes and cleanups related to ACPI from Andy Shevchenko,
Al Stone, Bartlomiej Zolnierkiewicz, Colin Ian King, Dan Carpenter,
Felipe Contreras, Jianguo Wu, Lan Tianyu, Yinghai Lu, Mathias Krause,
Liu Chuansheng.
- Assorted PM fixes and cleanups from Andy Shevchenko, Thierry Reding,
Jean-Christophe Plagniol-Villard.
/
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Merge tag 'pm+acpi-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management updates from Rafael J Wysocki:
- New power capping framework and the the Intel Running Average Power
Limit (RAPL) driver using it from Srinivas Pandruvada and Jacob Pan.
- Addition of the in-kernel switching feature to the arm_big_little
cpufreq driver from Viresh Kumar and Nicolas Pitre.
- cpufreq support for iMac G5 from Aaro Koskinen.
- Baytrail processors support for intel_pstate from Dirk Brandewie.
- cpufreq support for Midway/ECX-2000 from Mark Langsdorf.
- ARM vexpress/TC2 cpufreq support from Sudeep KarkadaNagesha.
- ACPI power management support for the I2C and SPI bus types from Mika
Westerberg and Lv Zheng.
- cpufreq core fixes and cleanups from Viresh Kumar, Srivatsa S Bhat,
Stratos Karafotis, Xiaoguang Chen, Lan Tianyu.
- cpufreq drivers updates (mostly fixes and cleanups) from Viresh
Kumar, Aaro Koskinen, Jungseok Lee, Sudeep KarkadaNagesha, Lukasz
Majewski, Manish Badarkhe, Hans-Christian Egtvedt, Evgeny Kapaev.
- intel_pstate updates from Dirk Brandewie and Adrian Huang.
- ACPICA update to version 20130927 includig fixes and cleanups and
some reduction of divergences between the ACPICA code in the kernel
and ACPICA upstream in order to improve the automatic ACPICA patch
generation process. From Bob Moore, Lv Zheng, Tomasz Nowicki, Naresh
Bhat, Bjorn Helgaas, David E Box.
- ACPI IPMI driver fixes and cleanups from Lv Zheng.
- ACPI hotplug fixes and cleanups from Bjorn Helgaas, Toshi Kani, Zhang
Yanfei, Rafael J Wysocki.
- Conversion of the ACPI AC driver to the platform bus type and
multiple driver fixes and cleanups related to ACPI from Zhang Rui.
- ACPI processor driver fixes and cleanups from Hanjun Guo, Jiang Liu,
Bartlomiej Zolnierkiewicz, Mathieu Rhéaume, Rafael J Wysocki.
- Fixes and cleanups and new blacklist entries related to the ACPI
video support from Aaron Lu, Felipe Contreras, Lennart Poettering,
Kirill Tkhai.
- cpuidle core cleanups from Viresh Kumar and Lorenzo Pieralisi.
- cpuidle drivers fixes and cleanups from Daniel Lezcano, Jingoo Han,
Bartlomiej Zolnierkiewicz, Prarit Bhargava.
- devfreq updates from Sachin Kamat, Dan Carpenter, Manish Badarkhe.
- Operation Performance Points (OPP) core updates from Nishanth Menon.
- Runtime power management core fix from Rafael J Wysocki and update
from Ulf Hansson.
- Hibernation fixes from Aaron Lu and Rafael J Wysocki.
- Device suspend/resume lockup detection mechanism from Benoit Goby.
- Removal of unused proc directories created for various ACPI drivers
from Lan Tianyu.
- ACPI LPSS driver fix and new device IDs for the ACPI platform scan
handler from Heikki Krogerus and Jarkko Nikula.
- New ACPI _OSI blacklist entry for Toshiba NB100 from Levente Kurusa.
- Assorted fixes and cleanups related to ACPI from Andy Shevchenko, Al
Stone, Bartlomiej Zolnierkiewicz, Colin Ian King, Dan Carpenter,
Felipe Contreras, Jianguo Wu, Lan Tianyu, Yinghai Lu, Mathias Krause,
Liu Chuansheng.
- Assorted PM fixes and cleanups from Andy Shevchenko, Thierry Reding,
Jean-Christophe Plagniol-Villard.
* tag 'pm+acpi-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (386 commits)
cpufreq: conservative: fix requested_freq reduction issue
ACPI / hotplug: Consolidate deferred execution of ACPI hotplug routines
PM / runtime: Use pm_runtime_put_sync() in __device_release_driver()
ACPI / event: remove unneeded NULL pointer check
Revert "ACPI / video: Ignore BIOS initial backlight value for HP 250 G1"
ACPI / video: Quirk initial backlight level 0
ACPI / video: Fix initial level validity test
intel_pstate: skip the driver if ACPI has power mgmt option
PM / hibernate: Avoid overflow in hibernate_preallocate_memory()
ACPI / hotplug: Do not execute "insert in progress" _OST
ACPI / hotplug: Carry out PCI root eject directly
ACPI / hotplug: Merge device hot-removal routines
ACPI / hotplug: Make acpi_bus_hot_remove_device() internal
ACPI / hotplug: Simplify device ejection routines
ACPI / hotplug: Fix handle_root_bridge_removal()
ACPI / hotplug: Refuse to hot-remove all objects with disabled hotplug
ACPI / scan: Start matching drivers after trying scan handlers
ACPI: Remove acpi_pci_slot_init() headers from internal.h
ACPI / blacklist: fix name of ThinkPad Edge E530
PowerCap: Fix build error with option -Werror=format-security
...
Conflicts:
arch/arm/mach-omap2/opp.c
drivers/Kconfig
drivers/spi/spi.c
* Unify some compile-time differences so that we have fewer uses of
#ifdef CONFIG_OF in atmel_nand
* Other general cleanups (removing unused functions, options, variables,
fields; use correct interfaces)
* Fix BUG() for new odd-sized NAND, which report non-power-of-2 dimensions via
ONFI
* Miscellaneous driver fixes (SPI NOR flash; BCM47xx NAND flash; etc.)
* Improve differentiation between SLC and MLC NAND -- this clarifies an ABI
issue regarding the MTD "type" (in sysfs and in ioctl(MEMGETINFO)), where
the MTD_MLCNANDFLASH type was present but inconsistently used
* Extend GPMI NAND to support multi-chip-select NAND for some platforms
* Many improvements to the OMAP2/3 NAND driver, including an expanded DT
binding to bring us closer to mainline support for some OMAP systems
* Fix a deadlock in the error path of the Atmel NAND driver probe
* Correct the error codes from MTD mmap() to conform to POSIX and the Linux
Programmer's Manual. This is an acknowledged change in the MTD ABI, but I
can't imagine somebody relying on the non-standard -ENOSYS error code
specifically. Am I just being unimaginative? :)
* Fix a few important GPMI NAND bugs (one regression from 3.12 and one
long-standing race condition)
* More? Read the log!
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Merge tag 'for-linus-20131112' of git://git.infradead.org/linux-mtd
Pull MTD changes from Brian Norris:
- Unify some compile-time differences so that we have fewer uses of
#ifdef CONFIG_OF in atmel_nand
- Other general cleanups (removing unused functions, options,
variables, fields; use correct interfaces)
- Fix BUG() for new odd-sized NAND, which report non-power-of-2
dimensions via ONFI
- Miscellaneous driver fixes (SPI NOR flash; BCM47xx NAND flash; etc.)
- Improve differentiation between SLC and MLC NAND -- this clarifies an
ABI issue regarding the MTD "type" (in sysfs and in the MEMGETINFO
ioctl), where the MTD_MLCNANDFLASH type was present but
inconsistently used
- Extend GPMI NAND to support multi-chip-select NAND for some platforms
- Many improvements to the OMAP2/3 NAND driver, including an expanded
DT binding to bring us closer to mainline support for some OMAP
systems
- Fix a deadlock in the error path of the Atmel NAND driver probe
- Correct the error codes from MTD mmap() to conform to POSIX and the
Linux Programmer's Manual. This is an acknowledged change in the MTD
ABI, but I can't imagine somebody relying on the non-standard -ENOSYS
error code specifically. Am I just being unimaginative? :)
- Fix a few important GPMI NAND bugs (one regression from 3.12 and one
long-standing race condition)
- More? Read the log!
* tag 'for-linus-20131112' of git://git.infradead.org/linux-mtd: (98 commits)
mtd: gpmi: fix the NULL pointer
mtd: gpmi: fix kernel BUG due to racing DMA operations
mtd: mtdchar: return expected errors on mmap() call
mtd: gpmi: only scan two chips for imx6
mtd: gpmi: Use devm_kzalloc()
mtd: atmel_nand: fix bug driver will in a dead lock if no nand detected
mtd: nand: use a local variable to simplify the nand_scan_tail
mtd: nand: remove deprecated IRQF_DISABLED
mtd: dataflash: Say if we find a device we don't support
mtd: nand: omap: fix error return code in omap_nand_probe()
mtd: nand_bbt: kill NAND_BBT_SCANALLPAGES
mtd: m25p80: fixup device removal failure path
mtd: mxc_nand: Include linux/of.h header
mtd: remove duplicated include from mtdcore.c
mtd: m25p80: add support for Macronix mx25l3255e
mtd: nand: omap: remove selection of BCH ecc-scheme via KConfig
mtd: nand: omap: updated devm_xx for all resource allocation and free calls
mtd: nand: omap: use drivers/mtd/nand/nand_bch.c wrapper for BCH ECC instead of lib/bch.c
mtd: nand: omap: clean-up ecc layout for BCH ecc schemes
mtd: nand: omap2: clean-up BCHx_HW and BCHx_SW ECC configurations in device_probe
...
Pull networking updates from David Miller:
1) The addition of nftables. No longer will we need protocol aware
firewall filtering modules, it can all live in userspace.
At the core of nftables is a, for lack of a better term, virtual
machine that executes byte codes to inspect packet or metadata
(arriving interface index, etc.) and make verdict decisions.
Besides support for loading packet contents and comparing them, the
interpreter supports lookups in various datastructures as
fundamental operations. For example sets are supports, and
therefore one could create a set of whitelist IP address entries
which have ACCEPT verdicts attached to them, and use the appropriate
byte codes to do such lookups.
Since the interpreted code is composed in userspace, userspace can
do things like optimize things before giving it to the kernel.
Another major improvement is the capability of atomically updating
portions of the ruleset. In the existing netfilter implementation,
one has to update the entire rule set in order to make a change and
this is very expensive.
Userspace tools exist to create nftables rules using existing
netfilter rule sets, but both kernel implementations will need to
co-exist for quite some time as we transition from the old to the
new stuff.
Kudos to Patrick McHardy, Pablo Neira Ayuso, and others who have
worked so hard on this.
2) Daniel Borkmann and Hannes Frederic Sowa made several improvements
to our pseudo-random number generator, mostly used for things like
UDP port randomization and netfitler, amongst other things.
In particular the taus88 generater is updated to taus113, and test
cases are added.
3) Support 64-bit rates in HTB and TBF schedulers, from Eric Dumazet
and Yang Yingliang.
4) Add support for new 577xx tigon3 chips to tg3 driver, from Nithin
Sujir.
5) Fix two fatal flaws in TCP dynamic right sizing, from Eric Dumazet,
Neal Cardwell, and Yuchung Cheng.
6) Allow IP_TOS and IP_TTL to be specified in sendmsg() ancillary
control message data, much like other socket option attributes.
From Francesco Fusco.
7) Allow applications to specify a cap on the rate computed
automatically by the kernel for pacing flows, via a new
SO_MAX_PACING_RATE socket option. From Eric Dumazet.
8) Make the initial autotuned send buffer sizing in TCP more closely
reflect actual needs, from Eric Dumazet.
9) Currently early socket demux only happens for TCP sockets, but we
can do it for connected UDP sockets too. Implementation from Shawn
Bohrer.
10) Refactor inet socket demux with the goal of improving hash demux
performance for listening sockets. With the main goals being able
to use RCU lookups on even request sockets, and eliminating the
listening lock contention. From Eric Dumazet.
11) The bonding layer has many demuxes in it's fast path, and an RCU
conversion was started back in 3.11, several changes here extend the
RCU usage to even more locations. From Ding Tianhong and Wang
Yufen, based upon suggestions by Nikolay Aleksandrov and Veaceslav
Falico.
12) Allow stackability of segmentation offloads to, in particular, allow
segmentation offloading over tunnels. From Eric Dumazet.
13) Significantly improve the handling of secret keys we input into the
various hash functions in the inet hashtables, TCP fast open, as
well as syncookies. From Hannes Frederic Sowa. The key fundamental
operation is "net_get_random_once()" which uses static keys.
Hannes even extended this to ipv4/ipv6 fragmentation handling and
our generic flow dissector.
14) The generic driver layer takes care now to set the driver data to
NULL on device removal, so it's no longer necessary for drivers to
explicitly set it to NULL any more. Many drivers have been cleaned
up in this way, from Jingoo Han.
15) Add a BPF based packet scheduler classifier, from Daniel Borkmann.
16) Improve CRC32 interfaces and generic SKB checksum iterators so that
SCTP's checksumming can more cleanly be handled. Also from Daniel
Borkmann.
17) Add a new PMTU discovery mode, IP_PMTUDISC_INTERFACE, which forces
using the interface MTU value. This helps avoid PMTU attacks,
particularly on DNS servers. From Hannes Frederic Sowa.
18) Use generic XPS for transmit queue steering rather than internal
(re-)implementation in virtio-net. From Jason Wang.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1622 commits)
random32: add test cases for taus113 implementation
random32: upgrade taus88 generator to taus113 from errata paper
random32: move rnd_state to linux/random.h
random32: add prandom_reseed_late() and call when nonblocking pool becomes initialized
random32: add periodic reseeding
random32: fix off-by-one in seeding requirement
PHY: Add RTL8201CP phy_driver to realtek
xtsonic: add missing platform_set_drvdata() in xtsonic_probe()
macmace: add missing platform_set_drvdata() in mace_probe()
ethernet/arc/arc_emac: add missing platform_set_drvdata() in arc_emac_probe()
ipv6: protect for_each_sk_fl_rcu in mem_check with rcu_read_lock_bh
vlan: Implement vlan_dev_get_egress_qos_mask as an inline.
ixgbe: add warning when max_vfs is out of range.
igb: Update link modes display in ethtool
netfilter: push reasm skb through instead of original frag skbs
ip6_output: fragment outgoing reassembled skb properly
MAINTAINERS: mv643xx_eth: take over maintainership from Lennart
net_sched: tbf: support of 64bit rates
ixgbe: deleting dfwd stations out of order can cause null ptr deref
ixgbe: fix build err, num_rx_queues is only available with CONFIG_RPS
...
Discussion at Kernel Summit made it clear that the presence or absence of
specific Kconfig symbols are not considered ABI, and that no userspace (or
bootloader, etc) should rely on them.
In addition, kernel-internal symbols are well established as non-ABI, per
Documentation/stable_api_nonsense.txt.
Document both of these in Documentation/ABI/README, in a new section for
notable bits of non-ABI.
Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Cc: Rob Landley <rob@landley.net>
Cc: Tao Ma <boyu.mt@taobao.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: Richard Weinberger <richard.weinberger@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Certain storage configurations, e.g. a sufficiently large array of
hard disks in a RAID configuration, need a queue depth above 64 to
achieve optimal performance. Hence make the queue depth configurable.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Tested-by: Jack Wang <xjtuwjp@gmail.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
On an initiator system with multiple IB ports it is not yet possible
to figure out what the originating port of an SRP connection is. Hence
make the source GID available in sysfs.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Add support for periodically reconnecting to an SRP target until
the dev_loss timer expires. After the tenth reconnection attempt,
gradually slow down subsequent reconnect attempts.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Add the necessary functions in the SRP transport module to allow an
SRP initiator driver to implement transport layer error handling
similar to the functionality already provided by the FC transport
layer. This includes:
- Support for implementing fast_io_fail_tmo, the time that should
elapse after having detected a transport layer problem and
before failing I/O.
- Support for implementing dev_loss_tmo, the time that should
elapse after having detected a transport layer problem and
before removing a remote port.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Allow the InfiniBand RC retry count to be configured by the user as an
option in the target login string. Reducing this retry count allows to
reduce the path failover time.
Signed-off-by: Vu Pham <vu@mellanox.com>
[ bvanassche: Rewrote patch description / changed default retry count ]
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Here's the big drivers/staging/ update for 3.13-rc1.
Nothing major here, just a _ton_ of fixes and cleanups, mostly driven by
the new round of OPW applicants, but also there are lots of other people
doing staging tree cleanups these days in order to help get the drivers
into mergable shape.
We also merge, and then revert, the ktap code, as Ingo and the other
perf/ftrace developers feel it should go into the "real" part of the
kernel with only a bit more work, so no need to put it in staging for
now.
All of this has been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver update from Greg KH:
"Here's the big drivers/staging/ update for 3.13-rc1.
Nothing major here, just a _ton_ of fixes and cleanups, mostly driven
by the new round of OPW applicants, but also there are lots of other
people doing staging tree cleanups these days in order to help get the
drivers into mergable shape.
We also merge, and then revert, the ktap code, as Ingo and the other
perf/ftrace developers feel it should go into the "real" part of the
kernel with only a bit more work, so no need to put it in staging for
now.
All of this has been in linux-next for a while with no reported
issues"
* tag 'staging-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1045 commits)
staging: drm/imx: fix return value check in ipu_add_subdevice_pdata()
Staging: zram: Fix access of NULL pointer
Staging: zram: Fix variable dereferenced before check
Staging: rtl8187se: space prohibited before semicolon in r8185b_init.c
Staging: rtl8187se: fix space prohibited after that open parenthesis '(' in r8185b_init.c
Staging: rtl8187se: fix braces {} are not necessary for single statement blocks in r8185b_init.c
Staging: rtl8187se: fix trailing whitespace in r8185b_init.c
Staging: rtl8187se: fix please, no space before tabs in r8185b_init.c
drivers/staging/nvec/Kconfig: remove trailing whitespace
Staging: dwc2: Fix variable dereferenced before check
Staging: xgifb: fix braces {} are not necessary for any arm of this statement
staging: rtl8192e: remove unneeded semicolons
staging: rtl8192e: use true and false for bool variables
staging: ft1000: return values corrected in scram_start_dwnld
staging: ft1000: change values of status return variable in write_dpram32_and_check
staging: bcm: Remove unnecessary pointer casting
imx-drm: ipuv3-crtc: Invert IPU DI0 clock polarity
staging: r8188eu: Fix sparse warnings in rtl_p2p.c
staging: r8188eu: Fix sparse warnings in rtw_mlme_ext.c
staging: r8188eu: Fix sparse warnings in rtl8188e.cmd.c
...
Here's the big char/misc driver patchset for 3.13-rc1.
Lots of stuff in here, including some new drivers for Intel's "MIC"
co-processor devices, and a new eeprom driver. Other things include the
driver attribute cleanups, extcon driver updates, hyperv updates, and a
raft of other miscellaneous driver fixes.
All of these have been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc patches from Greg KH:
"Here's the big char/misc driver patchset for 3.13-rc1.
Lots of stuff in here, including some new drivers for Intel's "MIC"
co-processor devices, and a new eeprom driver. Other things include
the driver attribute cleanups, extcon driver updates, hyperv updates,
and a raft of other miscellaneous driver fixes.
All of these have been in linux-next for a while"
* tag 'char-misc-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (121 commits)
misc: mic: Fixes for randconfig build errors and warnings.
tifm: fix error return code in tifm_7xx1_probe()
w1-gpio: Use devm_* functions
w1-gpio: Detect of_gpio_error for first gpio
uio: Pass pointers to virt_to_page(), not integers
uio: fix memory leak
misc/at24: avoid infinite loop on write()
misc/93xx46: avoid infinite loop on write()
misc: atmel_pwm: add deferred-probing support
mei: wd: host_init propagate error codes from called functions
mei: replace stray pr_debug with dev_dbg
mei: bus: propagate error code returned by mei_me_cl_by_id
mei: mei_cl_link remove duplicated check for open_handle_count
mei: print correct device state during unexpected reset
mei: nfc: fix memory leak in error path
lkdtm: add tests for additional page permissions
lkdtm: adjust recursion size to avoid warnings
lkdtm: isolate stack corruption test
mei: move host_clients_map cleanup to device init
mei: me: downgrade two errors to debug level
...
Added support for 3 keyboards with increasing illumination capabilities
Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The analog sticks of the pro-controller might report slightly off values.
To guarantee a uniform setup, we now calibrate analog-stick values during
pro-controller setup.
Unfortunately, the pro-controller fails during normal EEPROM reads and I
couldn't figure out whether there are any calibration values stored on the
device. Therefore, we now use the first values reported by the device (iff
they are not _way_ off, which would indicate movement) to initialize the
calibration values. To allow users to change this calibration data, we
provide a pro_calib sysfs attribute.
We also change the "flat" values so user-space correctly smoothes our
data. It makes slightly off zero-positions less visible while still
guaranteeing highly precise movement reports. Note that the pro controller
reports zero-positions in a quite huge range (at least: -100 to +100).
Reported-by: Rafael Brune <mail@rbrune.de>
Tested-by: Rafael Brune <mail@rbrune.de>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* powercap:
PowerCap: Convert class code to use dev_groups
PowerCap: Introduce Intel RAPL power capping driver
bitops: Introduce BIT_ULL
x86 / msr: add 64bit _on_cpu access functions
PowerCap: Add to drivers Kconfig and Makefile
PowerCap: Add class driver
PowerCap: Documentation
The current mtd_type_show() misses the MTD_MLCNANDFLASH case.
This patch adds the case for it, and also updates the ABI.
Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Final conversions to configfs for mass storage, acm_ms, and
multi gadgets.
MUSB should now work out of the box on AM335x-based boards
(beagle bone white and black) with DMA thanks to Sebastian's
work.
We can now enable VERBOSE_DEBUG on builds of drivers/usb/gadget/
by selecting CONFIG_USB_GADGET_VERBOSE.
s3c-hsotg got quite a few non-critical fixes but also learned
a few new tricks (isochronous transfers, multi count support).
The Marvel USB3 Controller driver got a memory leak fix.
devm_usb_get_phy() learned not to return NULL, ever.
Other than these patches, we have the usual set of cleanups
ranging from removal of unnecessary *_set_drvdata() to using
SIMPLE_DEV_PM_OPS.
Signed-of-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes:
usb: patches for v3.13
Final conversions to configfs for mass storage, acm_ms, and
multi gadgets.
MUSB should now work out of the box on AM335x-based boards
(beagle bone white and black) with DMA thanks to Sebastian's
work.
We can now enable VERBOSE_DEBUG on builds of drivers/usb/gadget/
by selecting CONFIG_USB_GADGET_VERBOSE.
s3c-hsotg got quite a few non-critical fixes but also learned
a few new tricks (isochronous transfers, multi count support).
The Marvel USB3 Controller driver got a memory leak fix.
devm_usb_get_phy() learned not to return NULL, ever.
Other than these patches, we have the usual set of cleanups
ranging from removal of unnecessary *_set_drvdata() to using
SIMPLE_DEV_PM_OPS.
Signed-of-by: Felipe Balbi <balbi@ti.com>
Conflicts:
drivers/net/usb/qmi_wwan.c
include/net/dst.h
Trivial merge conflicts, both were overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
AP isolation has to be enabled on one VLAN interface only.
This patch moves the AP isolation attribute to the per-vlan
interface attribute set, enabling it to have a different
value depending on the selected vlan.
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
My university will stop email service for alumni in january 2014, please
use my new e-mail address instead.
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Added power cap framework documentation. This explains the use of power
capping framework, sysfs and programming interface.
There are two documents:
- Documentation/power/powercap/powercap.txt : Explains use case and APIs.
- Documentation/ABI/testing/sysfs-class-powercap: Explains ABIs.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
For some devices it is possible to configure a hysteresis for threshold (or
similar) events. This patch adds a new hysteresis event info type which allows
for easy creation and read/write handling of the sysfs attribute.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Some links to projects web pages and e-mail addresses in ACPI/PM
documentation and Kconfig are outdated, so update them.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
From this commit on f_mass_storage is available through configfs.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This is replaced by a userspace program, we don't need this
functionality to bloat the kernel.
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
The e-mail address rjw@sisk.pl that I have been using for quite some
time is going to expire at one point, so replace it with a new one,
rjw@rjwysocki.net, everywhere in MAINTAINERS and Documentation/ABI.
Signed-off-by: Rafael J. Wysocki <rjw@rjwysocki.net>
This patch enables support for OSPM suspend and resume in the MIC
driver. During a host suspend event, the driver performs an
orderly shutdown of the cards if they are online. Upon resume, any
cards that were previously online before suspend are rebooted.
The driver performs an orderly shutdown of the card primarily to
ensure that applications in the card are terminated and mounted
devices are safely un-mounted before the card is powered down in
the event of an OSPM suspend.
The driver makes use of the MIC daemon to accomplish OSPM suspend
and resume. The driver registers a PM notifier per MIC device.
The devices get notified synchronously during PM_SUSPEND_PREPARE and
PM_POST_SUSPEND phases.
During the PM_SUSPEND_PREPARE phase, the driver performs one of the
following three tasks.
1) If the card is 'offline', the driver sets the card to a
'suspended' state and returns.
2) If the card is 'online', the driver initiates card shutdown by
setting the card state to suspending. This notifies the MIC
daemon which invokes shutdown and sets card state to 'suspended'.
The driver returns after the shutdown is complete.
3) If the card is already being shutdown, possibly by a host user
space application, the driver sets the card state to 'suspended'
and returns after the shutdown is complete.
During the PM_POST_SUSPEND phase, the driver simply notifies the
daemon and returns. The daemon boots those cards that were previously
online during the suspend phase.
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The documentation says that the result of raw * scale should be in microvolts,
but in reallity all drivers actually report the scale so that the result is in
millivolts. So update the documentation to match reallity.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This patch enables the following features:
a) Boots and shuts down the card via sysfs entries.
b) Allocates and maps a device page for communication with the
card driver and updates the device page address via scratchpad
registers.
c) Provides sysfs entries for shutdown status, kernel command line,
ramdisk and log buffer information.
Co-author: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Caz Yokoyama <Caz.Yokoyama@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Acked-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch enables the following:
a) Initializes the Intel MIC X100 PCIe devices.
b) Provides sysfs entries for family and stepping information.
Co-author: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Caz Yokoyama <Caz.Yokoyama@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Acked-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Allwinner has electric fuses (efuse) on their line of chips. This driver
reads those fuses, seeds the kernel entropy and exports them as a sysfs
node.
These fuses are most likely to be programmed at the factory, encoding
things like Chip ID, some sort of serial number, etc. and appear to be
reasonably unique.
While in theory, these should be writeable by the user, it will probably
be inconvenient to do so. Allwinner recommends that a certain input pin,
labeled 'efuse_vddq', be connected to GND. To write these fuses however,
a 2.5 V programming voltage needs to be applied to this pin.
Even so, they can still be used to generate a board-unique mac from,
board unique RSA key and seed the kernel RNG.
On sun7i additional storage is available, this is initially used for an
UEFI BOOT key, Secure JTAG key, HDMI-HDCP key and vendor specific keys.
Currently supported are the following known chips:
Allwinner sun4i (A10)
Allwinner sun5i (A10s, A13)
Allwinner sun7i (A20)
Signed-off-by: Oliver Schinagl <oliver@schinagl.nl>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A number of new drivers and some new functionality + a lot of cleanups
all over IIO.
New Core Elements
1) New INT_TIME info_mask element for integration time, which may have
different effects on measurement noise and similar, than an amplifier
and hence is different from existing SCALE. Already existed in some
drivers as a custom attribute.
2) Introduce a iio_push_buffers_with_timestamp helper to cover the common
case of filling the last 64 bits of data to be passed to the buffer with
a timestamp. Applied to lots of drivers. Cuts down on repeated code and
moves a slightly fiddly bit of logic into a single location.
3) Introduce info_mask_[shared_by_dir/shared_by_all] elements to allow support
of elements such as sampling_frequency which is typically shared by all
input channels on a device. This reduces code and makes these controls
available from in kernel consumers of IIO devices.
New drivers
1) MCP3422/3/4 ADC
2) TSL4531 ambient light sensor
3) TCS3472/5 color light sensor
4) GP2AP020A00F ambient light / proximity sensor
5) LPS001WP support added to ST pressure sensor driver.
New driver functionality
1) ti_am335x_adc Add buffered sampling support.
This device has a hardware fifo that is fed directly into an IIO kfifo
buffer based on a watershed interrupt. Note this will act as an example
of how to handle this increasingly common type of device.
The only previous example - sca3000 - take a less than optimal approach
which is largely why it is still in staging.
A couple of little cleanups for that new functionality followed later.
Core cleanups:
1) MAINTAINERS - Sachin actually brought my email address up to date because
I said I'd do it and never got around to it :)
2) Assign buffer list elements as single element lists to simplify the
iio_buffer_is_active logic.
3) wake_up_interruptible_poll instead of wake_up_interruptible to only wake
up threads waiting for poll notifications.
4) Add O_CLOEXEC flag to anon_inode_get_fd call for IIO event interface.
5) Change iio_push_to_buffers to take a void * pointer so as to avoid some
annoying and unnecessary type casts.
6) iio_compute_scan_bytes incorrectly took a long rather than unsigned long.
7) Various minor tidy ups.
Driver cleanups (in no particular order)
1) Another set of devm_ allocations patches from Sachin Kamat.
2) tsl2x7x - 0 to NULL cleanup.
3) hmc5843 - fix missing > in MODULE_AUTHOR
4) Set of strict_strto* to kstrto* conversions.
5) mxs-lradc - fix ordering of resource removal to match creation
6) mxs-lradc - add MODULE_ALIAS
7) adc7606 - drop a work pending test duplicated in core functions.
8) hmc5843 - devm_ allocation patch
9) Series of redundant breaks removed.
10) ad2s1200 - pr_err -> dev_err
11) adjd_s311 - use INT_TIME
12) ST sensors - large set of cleanups from Lee Jones and removed restriction
to using only triggers provided by the st_sensors themselves from
Dennis Ciocca.
13) dummy and tmp006 provide sampling_frequency via info_mask_shared_by_all.
14) tcs3472 - fix incorrect buffer size and wrong device pointer used in
suspend / resume functions.
15) max1363 - use defaults for buffer setup ops as provided by the triggered
buffer helpers as they are the same as were specified in max1363 driver.
16) Trivial tidy ups in a number of other drivers.
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Merge tag 'iio-for-3.13a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next
Jonathan writes:
First round of new drivers, functionality and cleanups for IIO in the 3.13 cycle
A number of new drivers and some new functionality + a lot of cleanups
all over IIO.
New Core Elements
1) New INT_TIME info_mask element for integration time, which may have
different effects on measurement noise and similar, than an amplifier
and hence is different from existing SCALE. Already existed in some
drivers as a custom attribute.
2) Introduce a iio_push_buffers_with_timestamp helper to cover the common
case of filling the last 64 bits of data to be passed to the buffer with
a timestamp. Applied to lots of drivers. Cuts down on repeated code and
moves a slightly fiddly bit of logic into a single location.
3) Introduce info_mask_[shared_by_dir/shared_by_all] elements to allow support
of elements such as sampling_frequency which is typically shared by all
input channels on a device. This reduces code and makes these controls
available from in kernel consumers of IIO devices.
New drivers
1) MCP3422/3/4 ADC
2) TSL4531 ambient light sensor
3) TCS3472/5 color light sensor
4) GP2AP020A00F ambient light / proximity sensor
5) LPS001WP support added to ST pressure sensor driver.
New driver functionality
1) ti_am335x_adc Add buffered sampling support.
This device has a hardware fifo that is fed directly into an IIO kfifo
buffer based on a watershed interrupt. Note this will act as an example
of how to handle this increasingly common type of device.
The only previous example - sca3000 - take a less than optimal approach
which is largely why it is still in staging.
A couple of little cleanups for that new functionality followed later.
Core cleanups:
1) MAINTAINERS - Sachin actually brought my email address up to date because
I said I'd do it and never got around to it :)
2) Assign buffer list elements as single element lists to simplify the
iio_buffer_is_active logic.
3) wake_up_interruptible_poll instead of wake_up_interruptible to only wake
up threads waiting for poll notifications.
4) Add O_CLOEXEC flag to anon_inode_get_fd call for IIO event interface.
5) Change iio_push_to_buffers to take a void * pointer so as to avoid some
annoying and unnecessary type casts.
6) iio_compute_scan_bytes incorrectly took a long rather than unsigned long.
7) Various minor tidy ups.
Driver cleanups (in no particular order)
1) Another set of devm_ allocations patches from Sachin Kamat.
2) tsl2x7x - 0 to NULL cleanup.
3) hmc5843 - fix missing > in MODULE_AUTHOR
4) Set of strict_strto* to kstrto* conversions.
5) mxs-lradc - fix ordering of resource removal to match creation
6) mxs-lradc - add MODULE_ALIAS
7) adc7606 - drop a work pending test duplicated in core functions.
8) hmc5843 - devm_ allocation patch
9) Series of redundant breaks removed.
10) ad2s1200 - pr_err -> dev_err
11) adjd_s311 - use INT_TIME
12) ST sensors - large set of cleanups from Lee Jones and removed restriction
to using only triggers provided by the st_sensors themselves from
Dennis Ciocca.
13) dummy and tmp006 provide sampling_frequency via info_mask_shared_by_all.
14) tcs3472 - fix incorrect buffer size and wrong device pointer used in
suspend / resume functions.
15) max1363 - use defaults for buffer setup ops as provided by the triggered
buffer helpers as they are the same as were specified in max1363 driver.
16) Trivial tidy ups in a number of other drivers.
Integration time is in seconds; it controls the measurement
time and influences the gain of a sensor.
There are two typical ways that scaling is implemented in a device:
1) input amplifier,
2) reference to the ADC is changed.
These both result in the accuracy of the ADC varying (by applying its
sampling over a more relevant range).
Integration time is a way of dealing with noise inherent in the analog
sensor itself. In the case of a light sensor, a mixture of photon noise
and device specific noise. Photon noise is dealt with by either improving
the efficiency of the sensor, (more photons actually captured) which is not
easily varied dynamically, or by integrating the measurement over a longer
time period. Note that this can also be thought of as an averaging of a
number of individual samples and is infact sometimes implemented this way.
Altering integration time implies that the duration of a measurement changes,
a fact the device's user may be interested in.
Hence it makes sense to distinguish between integration time and simple
scale. In some devices both types of control are present and whilst they
will have similar effects on the amplitude of the reading, their effect
on the noise of the measurements will differ considerably.
Used by adjd_s311, tsl4531, tcs3472
The following drivers have similar controls (and could be adapted):
* tsl2563 (integration time is controlled via CALIBSCALE among other things)
* tsl2583 (has integration_time device_attr, but driver doesn't use channels yet)
* tsl2x7x (has integration_time attr)
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Jon Brenner <jon.brenner@ams.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
- nand-gpio cleanup and portability to non-ARM
- m25p80 support for 4-byte addressing chips, other new chips
- pxa3xx cleanup and support for new platforms
- remove obsolete alauda, octagon-5066 drivers
- erase/write support for bcm47xxsflash
- improve detection of ECC requirements for NAND, controller setup
- NFC acceleration support for atmel-nand, read/write via SRAM
- etc.
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Merge tag 'for-linus-20130909' of git://git.infradead.org/linux-mtd
Pull mtd updates from David Woodhouse:
- factor out common code from MTD tests
- nand-gpio cleanup and portability to non-ARM
- m25p80 support for 4-byte addressing chips, other new chips
- pxa3xx cleanup and support for new platforms
- remove obsolete alauda, octagon-5066 drivers
- erase/write support for bcm47xxsflash
- improve detection of ECC requirements for NAND, controller setup
- NFC acceleration support for atmel-nand, read/write via SRAM
- etc
* tag 'for-linus-20130909' of git://git.infradead.org/linux-mtd: (184 commits)
mtd: chips: Add support for PMC SPI Flash chips in m25p80.c
mtd: ofpart: use for_each_child_of_node() macro
mtd: mtdswap: replace strict_strtoul() with kstrtoul()
mtd cs553x_nand: use kzalloc() instead of memset
mtd: atmel_nand: fix error return code in atmel_nand_probe()
mtd: bcm47xxsflash: writing support
mtd: bcm47xxsflash: implement erasing support
mtd: bcm47xxsflash: convert to module_platform_driver instead of init/exit
mtd: bcm47xxsflash: convert kzalloc to avoid invalid access
mtd: remove alauda driver
mtd: nand: mxc_nand: mark 'const' properly
mtd: maps: cfi_flagadm: add missing __iomem annotation
mtd: spear_smi: add missing __iomem annotation
mtd: r852: Staticize local symbols
mtd: nandsim: Staticize local symbols
mtd: impa7: add missing __iomem annotation
mtd: sm_ftl: Staticize local symbols
mtd: m25p80: add support for mr25h10
mtd: m25p80: make CONFIG_M25PXX_USE_FAST_READ safe to enable
mtd: m25p80: Pass flags through CAT25_INFO macro
...
Pull trivial tree from Jiri Kosina:
"The usual trivial updates all over the tree -- mostly typo fixes and
documentation updates"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (52 commits)
doc: Documentation/cputopology.txt fix typo
treewide: Convert retrun typos to return
Fix comment typo for init_cma_reserved_pageblock
Documentation/trace: Correcting and extending tracepoint documentation
mm/hotplug: fix a typo in Documentation/memory-hotplug.txt
power: Documentation: Update s2ram link
doc: fix a typo in Documentation/00-INDEX
Documentation/printk-formats.txt: No casts needed for u64/s64
doc: Fix typo "is is" in Documentations
treewide: Fix printks with 0x%#
zram: doc fixes
Documentation/kmemcheck: update kmemcheck documentation
doc: documentation/hwspinlock.txt fix typo
PM / Hibernate: add section for resume options
doc: filesystems : Fix typo in Documentations/filesystems
scsi/megaraid fixed several typos in comments
ppc: init_32: Fix error typo "CONFIG_START_KERNEL"
treewide: Add __GFP_NOWARN to k.alloc calls with v.alloc fallbacks
page_isolation: Fix a comment typo in test_pages_isolated()
doc: fix a typo about irq affinity
...
This patch-set includes the following major enhancement patches.
o support inline xattrs
o add sysfs support to control GCs explicitly
o add proc entry to show the current segment usage information
o improve the GC/SSR performance
The other bug fixes are as follows.
o avoid the overflow on status calculation
o fix some error handling routines
o fix inconsistent xattr states after power-off-recovery
o fix incorrect xattr node offset definition
o fix deadlock condition in fsync
o fix the fdatasync routine for power-off-recovery
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Merge tag 'for-f2fs-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"This patch-set includes the following major enhancement patches:
- support inline xattrs
- add sysfs support to control GCs explicitly
- add proc entry to show the current segment usage information
- improve the GC/SSR performance
The other bug fixes are as follows:
- avoid the overflow on status calculation
- fix some error handling routines
- fix inconsistent xattr states after power-off-recovery
- fix incorrect xattr node offset definition
- fix deadlock condition in fsync
- fix the fdatasync routine for power-off-recovery"
* tag 'for-f2fs-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (40 commits)
f2fs: optimize gc for better performance
f2fs: merge more bios of node block writes
f2fs: avoid an overflow during utilization calculation
f2fs: trigger GC when there are prefree segments
f2fs: use strncasecmp() simplify the string comparison
f2fs: fix omitting to update inode page
f2fs: support the inline xattrs
f2fs: add the truncate_xattr_node function
f2fs: introduce __find_xattr for readability
f2fs: reserve the xattr space dynamically
f2fs: add flags for inline xattrs
f2fs: fix error return code in init_f2fs_fs()
f2fs: fix wrong BUG_ON condition
f2fs: fix memory leak when init f2fs filesystem fail
f2fs: fix a compound statement label error
f2fs: avoid writing inode redundantly when creating a file
f2fs: alloc_page() doesn't return an ERR_PTR
f2fs: should cover i_xattr_nid with its xattr node page lock
f2fs: check the free space first in new_node_page
f2fs: clean up the needless end 'return' of void function
...
Here's the bit staging tree pull request for 3.12-rc1.
Lots of staging driver updates, and fixes. Lustre is finally enabled in
the build, and lots of cleanup started happening in it. There's a new
wireless driver in here, and 2 new TTY drivers, which cause the overall
lines added/removed to be quite large on the "added" side.
The IIO driver updates are also coming through here, as they are tied to
the staging iio drivers.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging tree merge from Greg KH:
"Here's the bit staging tree pull request for 3.12-rc1.
Lots of staging driver updates, and fixes. Lustre is finally enabled
in the build, and lots of cleanup started happening in it. There's a
new wireless driver in here, and 2 new TTY drivers, which cause the
overall lines added/removed to be quite large on the "added" side.
The IIO driver updates are also coming through here, as they are tied
to the staging iio drivers"
* tag 'staging-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (942 commits)
staging: dwc2: make dwc2_core_params documentation more complete
staging: dwc2: validate the value for phy_utmi_width
staging: dwc2: interpret all hwcfg and related register at init time
staging: dwc2: properly mask the GRXFSIZ register
staging: dwc2: remove redundant register reads
staging: dwc2: re-use hptxfsiz variable
staging: dwc2: simplify debug output in dwc_hc_init
staging: dwc2: add missing shift
staging: dwc2: simplify register shift expressions
staging: dwc2: only read the snpsid register once
staging: dwc2: unshift non-bool register value constants
staging: dwc2: fix off-by-one in check for max_packet_count parameter
staging: dwc2: remove specific fifo size constants
Staging:BCM:DDRInit.c:Renaming __FUNCTION__
staging: bcm: remove Version.h file.
staging: rtl8188eu: off by one in rtw_set_802_11_add_wep()
staging: r8188eu: copying one byte too much
staging: rtl8188eu: || vs && typo
staging: r8188eu: off by one bugs
staging: crystalhd: Resolve sparse 'different base types' warnings.
...
We add a new sys node for ecc step size. So update the ABI document about it.
Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
[Brian: edited description, modified 'ecc_strength']
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Add description about in_accelX_power_mode and
in_accel_power_mode_available.
Signed-off-by: Oleksandr Kravchenko <o.v.kravchenko@globallogic.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Simple doc updates to zram documentation.
Signed-off-by: Bernhard M. Wiedemann <bwiedemann@suse.de>
Acked-by: Rob Landley <rob@landley.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Correct use of devnum in supports_autosuspend documentation, the sysfs path
contains busnum-port.port.port not busnum-devnum (which is the usb bus device
address).
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add sysfs entry gc_idle to control the gc policy. Where
gc_idle = 1 corresponds to selecting a cost benefit approach,
while gc_idle = 2 corresponds to selecting a greedy approach
to garbage collection. The selection is mutually exclusive one
approach will work at any point. If gc_idle = 0, then this
option is disabled.
Cc: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Pankaj Kumar <pankaj.km@samsung.com>
Reviewed-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
[Jaegeuk Kim: change the select_gc_type() flow slightly]
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Add sysfs entries to control the timing parameters for
f2fs gc thread.
Various Sysfs options introduced are:
gc_min_sleep_time: Min Sleep time for GC in ms
gc_max_sleep_time: Max Sleep time for GC in ms
gc_no_gc_sleep_time: Default Sleep time for GC in ms
Cc: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Pankaj Kumar <pankaj.km@samsung.com>
Reviewed-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
[Jaegeuk Kim: fix an umount bug and some minor changes]
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Pull block IO driver bits from Jens Axboe:
"As I mentioned in the core block pull request, due to real life
circumstances the driver pull request would be late. Now it looks
like -rc2 late... On the plus side, apart form the rsxx update, these
are all things that I could argue could go in later in the cycle as
they are fixes and not features. So even though things are late, it's
not ALL bad.
The pull request contains:
- Updates to bcache, all bug fixes, from Kent.
- A pile of drbd bug fixes (no big features this time!).
- xen blk front/back fixes.
- rsxx driver updates, some of them deferred form 3.10. So should be
well cooked by now"
* 'for-3.11/drivers' of git://git.kernel.dk/linux-block: (63 commits)
bcache: Allocation kthread fixes
bcache: Fix GC_SECTORS_USED() calculation
bcache: Journal replay fix
bcache: Shutdown fix
bcache: Fix a sysfs splat on shutdown
bcache: Advertise that flushes are supported
bcache: check for allocation failures
bcache: Fix a dumb race
bcache: Use standard utility code
bcache: Update email address
bcache: Delete fuzz tester
bcache: Document shrinker reserve better
bcache: FUA fixes
drbd: Allow online change of al-stripes and al-stripe-size
drbd: Constants should be UPPERCASE
drbd: Ignore the exit code of a fence-peer handler if it returns too late
drbd: Fix rcu_read_lock balance on error path
drbd: fix error return code in drbd_init()
drbd: Do not sleep inside rcu
bcache: Refresh usage docs
...
Pull x86 platform driver updates from Matthew Garrett:
"Nothing overly exciting here - a couple of new drivers that don't do a
great deal, along with some miscellaneous fixes and a couple of small
feature enablement patches"
* 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86:
x86 platform drivers: fix gpio leak
toshiba_acpi: Add dependency on SERIO_I8042
asus-nb-wmi: set wapf=4 for ASUSTeK COMPUTER INC. 1015E/U
Add trivial driver to disable Intel Smart Connect
Add support driver for Intel Rapid Start Technology
hp-wmi: add supports for POST code error
asus-wmi: control wlan-led only if wapf == 4
drivers/platform/x86/intel_ips: Convert to module_pci_driver
asus-nb-wmi: ignore ALS notification key code
asus-wmi: append newline to messages
x86: asus-laptop: fix invalid point access
x86: msi-laptop: fix memleak
amilo-rfkill: Add dependency on SERIO_I8042
dell-laptop: fix error return code in dell_init()
hp-wmi: Enable hotkeys on some systems
Pull perf fixes from Thomas Gleixner:
- fix for do_div() abuse on x86
- locking fix in perf core
- a pile of (build) fixes and cleanups in perf tools
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
perf/x86: Fix incorrect use of do_div() in NMI warning
perf: Fix perf_lock_task_context() vs RCU
perf: Remove WARN_ON_ONCE() check in __perf_event_enable() for valid scenario
perf: Clone child context from parent context pmu
perf script: Fix broken include in Context.xs
perf tools: Fix -ldw/-lelf link test when static linking
perf tools: Revert regression in configuration of Python support
perf tools: Fix perf version generation
perf stat: Fix per-socket output bug for uncore events
perf symbols: Fix vdso list searching
perf evsel: Fix missing increment in sample parsing
perf tools: Update symbol_conf.nr_events when processing attribute events
perf tools: Fix new_term() missing free on error path
perf tools: Fix parse_events_terms() segfault on error path
perf evsel: Fix count parameter to read call in event_format__new
perf tools: fix a typo of a Power7 event name
perf tools: Fix -x/--exclude-other option for report command
perf evlist: Enhance perf_evlist__start_workload()
perf record: Remove -f/--force option
perf record: Remove -A/--append option
...
- AF_IB (native IB addressing) for CMA from Sean Hefty
- New mlx5 driver for Mellanox Connect-IB adapters (including post merge request fixes)
- SRP fixes from Bart Van Assche (including fix to first merge request)
- qib HW driver updates
- Resurrection of ocrdma HW driver development
- uverbs conversion to create fds with O_CLOEXEC set
- Other small changes and fixes
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Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull InfiniBand/RDMA changes from Roland Dreier:
- AF_IB (native IB addressing) for CMA from Sean Hefty
- new mlx5 driver for Mellanox Connect-IB adapters (including post
merge request fixes)
- SRP fixes from Bart Van Assche (including fix to first merge request)
- qib HW driver updates
- resurrection of ocrdma HW driver development
- uverbs conversion to create fds with O_CLOEXEC set
- other small changes and fixes
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (66 commits)
mlx5: Return -EFAULT instead of -EPERM
IB/qib: Log all SDMA errors unconditionally
IB/qib: Fix module-level leak
mlx5_core: Adjust hca_cap.uar_page_sz to conform to Connect-IB spec
IB/srp: Let srp_abort() return FAST_IO_FAIL if TL offline
IB/uverbs: Use get_unused_fd_flags(O_CLOEXEC) instead of get_unused_fd()
mlx5_core: Fixes for sparse warnings
IB/mlx5: Make profile[] static in main.c
mlx5: Fix parameter type of health_handler_t
mlx5: Add driver for Mellanox Connect-IB adapters
IB/core: Add reserved values to enums for low-level driver use
IB/srp: Bump driver version and release date
IB/srp: Make HCA completion vector configurable
IB/srp: Maintain a single connection per I_T nexus
IB/srp: Fail I/O fast if target offline
IB/srp: Skip host settle delay
IB/srp: Avoid skipping srp_reset_host() after a transport error
IB/srp: Fix remove_one crash due to resource exhaustion
IB/qib: New transmitter tunning settings for Dell 1.1 backplane
IB/core: Fix error return code in add_port()
...
Pull media updates from Mauro Carvalho Chehab:
"This series contain:
- new i2c video drivers: ml86v7667 (video decoder),
ths8200 (video encoder)
- a new video driver for EasyCap cards based on Fushicai USBTV007
- Improved support for OF and embedded systems, with V4L2 async
initialization and a better support for clocks
- API cleanups on the ioctls used by the v4l2 debug tool
- Lots of cleanups
- As usual, several driver improvements and new cards additions
- Revert two changesets that change the minimal symbol rate for
stv0399, as request by Manu
- Update MAINTAINERS and other files to point to my new e-mail"
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (378 commits)
MAINTAINERS & ABI: Update to point to my new email
[media] stb0899: restore minimal rate to 5Mbauds
[media] exynos4-is: Correct colorspace handling at FIMC-LITE
[media] exynos4-is: Set valid initial format on FIMC.n subdevs
[media] exynos4-is: Set valid initial format on FIMC-IS-ISP subdev pads
[media] exynos4-is: Fix format propagation on FIMC-IS-ISP subdev
[media] exynos4-is: Set valid initial format at FIMC-LITE
[media] exynos4-is: Fix format propagation on FIMC-LITE.n subdevs
[media] MAINTAINERS: Update S5P/Exynos FIMC driver entry
[media] Documentation: Update driver's directory in video4linux/fimc.txt
[media] exynos4-is: Change fimc-is firmware file names
[media] exynos4-is: Add support for Exynos5250 MIPI-CSIS
[media] exynos4-is: Add Exynos5250 SoC support to fimc-lite driver
[media] exynos4-is: Drop drvdata handling in fimc-lite for non-dt platforms
[media] media: i2c: tvp514x: remove manual setting of subdev name
[media] media: i2c: tvp7002: remove manual setting of subdev name
[media] mem2mem: set missing v4l2_dev pointer
[media] wl128x: add missing struct v4l2_device
[media] tvp514x: Fix init seqeunce
[media] saa7134: Fix sparse warnings by adding __user annotation
...
ignore that.
Cheers,
Rusty.
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Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull module updates from Rusty Russell:
"Nothing interesting. Except the most embarrassing bugfix ever. But
let's ignore that"
* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
module: cleanup call chain.
module: do percpu allocation after uniqueness check. No, really!
modules: don't fail to load on unknown parameters.
ABI: Clarify when /sys/module/MODULENAME is created
There is no /sys/parameters
module: don't modify argument of module_kallsyms_lookup_name()
Intel Rapid Start Technology is a firmware-based suspend-to-disk
implementation. Once placed in S3, the device will wake once either a
timeout elapses or the battery reaches a critical level. It will then resume
to the firmware and copy the contents of RAM to a specialised partition, and
then power off the machine. If the user turns the machine back on the
firmware will copy the contents of the partition back to RAM and then resume
from S3 as normal.
This driver provides an interface for configuring the wakeup events and
timeout. It still requires firmware support and an appropriate suspend
partition.
Signed-off-by: Matthew Garrett <mjg59@srcf.ucam.org>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
A new driver supports driving PWM signals using the TPU unit found on
various Renesas SoCs. Furthermore support is added for the NXP PCA9685
LED controller. Another big chunk is the sysfs interface which has been
in the works for quite some time.
The remaining patches are a random assortment of cleanups and fixes.
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Merge tag 'for-3.11-rc1' of git://gitorious.org/linux-pwm/linux-pwm
Pull pwm changes from Thierry Reding:
"A new driver supports driving PWM signals using the TPU unit found on
various Renesas SoCs. Furthermore support is added for the NXP
PCA9685 LED controller. Another big chunk is the sysfs interface
which has been in the works for quite some time.
The remaining patches are a random assortment of cleanups and fixes"
* tag 'for-3.11-rc1' of git://gitorious.org/linux-pwm/linux-pwm:
pwm: pwm-tiehrpwm: Use clk_enable/disable instead clk_prepare/unprepare.
pwm: pca9685: Fix wrong argument to set MODE1_SLEEP bit
pwm: renesas-tpu: Add MODULE_ALIAS to make module auto loading work
pwm: renesas-tpu: fix return value check in tpu_probe()
pwm: Add Renesas TPU PWM driver
pwm: Add sysfs interface
pwm: Fill in missing .owner fields
pwm: add pca9685 driver
pwm: atmel-tcb: prepare clk before calling enable
pwm: devm: alloc correct pointer size
pwm: mxs: Let device core handle pinctrl
MAINTAINERS: Update PWM subsystem entry
In the Power7 PMU guide:
https://www.power.org/documentation/commonly-used-metrics-for-performance-analysis/
PM_BRU_MPRED is referred to as PM_BR_MPRED.
It fixed the typo by changing the name of the event in kernel and
documentation accordingly.
This patch changes the ABI, there are some reasons I think it's ok:
- It is relatively new interface, specific to the Power7 platform.
- No tools that we know of actually use this interface at this point
(none are listed near the interface).
- Users of this interface (eg oprofile users migrating to perf)
would be more used to the "PM_BR_MPRED" rather than "PM_BRU_MPRED".
- These are in the ABI/testing at this point rather than ABI/stable,
so hoping we have some wiggle room.
Signed-off-by: Runzhen Wang <runzhen@linux.vnet.ibm.com>
Acked-by: Michael Ellerman <michael@ellerman.id.au>
Cc: icycoder@gmail.com
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Runzhen Wang <runzhew@clemson.edu>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1372407297-6996-2-git-send-email-runzhen@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Pull HID updates from Jiri Kosina:
- HID battery handling cleanup by David Herrmann
- ELO 4000/4500 driver, which has been finally ported to be proper HID
driver by Jiri Slaby
- ps3remote driver functionality is now provided by generic sony
driver, by Jiri Kosina
- PS2/3 Buzz controllers support, by Colin Leitner
- rework of wiimote driver including full extensions hotpluggin
support, sub-device modularization and speaker support by David
Herrmann
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (55 commits)
HID: wacom: Intuos4 battery charging changes
HID: i2c-hid: support sending HID output reports using the output register
HID: kye: Add report fixup for Genius Gila Gaming mouse
HID: wiimote: support Nintendo Wii U Pro Controller
Input: make gamepad API keycodes more clear
input: document gamepad API and add extra keycodes
HID: explain out-of-range check better
HID: fix false positive out of range values
HID: wiimote: fix coccinelle warnings
HID: roccat: check cdev_add return value
HID: fold ps3remote driver into generic Sony driver
HID: hyperv: convert alloc+memcpy to memdup
HID: core: fix reporting of raw events
HID: wiimote: discard invalid EXT data reports
HID: wiimote: fix classic controller parsing
HID: wiimote: init EXT/MP during device detection
HID: wiimote: fix DRM debug-attr to correctly parse input
HID: wiimote: add MP quirks
HID: wiimote: remove old static extension support
HID: wiimote: add "bboard_calib" attribute
...
- Hotplug changes allowing device hot-removal operations to fail
gracefully (instead of crashing the kernel) if they cannot be
carried out completely. From Rafael J Wysocki and Toshi Kani.
- Freezer update from Colin Cross and Mandeep Singh Baines targeted
at making the freezing of tasks a bit less heavy weight operation.
- cpufreq resume fix from Srivatsa S Bhat for a regression introduced
during the 3.10 cycle causing some cpufreq sysfs attributes to
return wrong values to user space after resume.
- New freqdomain_cpus sysfs attribute for the acpi-cpufreq driver to
provide information previously available via related_cpus from
Lan Tianyu.
- cpufreq fixes and cleanups from Viresh Kumar, Jacob Shin,
Heiko Stübner, Xiaoguang Chen, Ezequiel Garcia, Arnd Bergmann, and
Tang Yuantian.
- Fix for an ACPICA regression causing suspend/resume issues to
appear on some systems introduced during the 3.4 development cycle
from Lv Zheng.
- ACPICA fixes and cleanups from Bob Moore, Tomasz Nowicki, Lv Zheng,
Chao Guan, and Zhang Rui.
- New cupidle driver for Xilinx Zynq processors from Michal Simek.
- cpuidle fixes and cleanups from Daniel Lezcano.
- Changes to make suspend/resume work correctly in Xen guests from
Konrad Rzeszutek Wilk.
- ACPI device power management fixes and cleanups from Fengguang Wu
and Rafael J Wysocki.
- ACPI documentation updates from Lv Zheng, Aaron Lu and Hanjun Guo.
- Fix for the IA-64 issue that was the reason for reverting commit
9f29ab1 and updates of the ACPI scan code from Rafael J Wysocki.
- Mechanism for adding CMOS RTC address space handlers from Lan Tianyu
(to allow some EC-related breakage to be fixed on some systems).
- Spec-compliant implementation of acpi_os_get_timer() from
Mika Westerberg.
- Modification of do_acpi_find_child() to execute _STA in order to
to avoid situations in which a pointer to a disabled device object
is returned instead of an enabled one with the same _ADR value.
From Jeff Wu.
- Intel BayTrail PCH (Platform Controller Hub) support for the ACPI
Intel Low-Power Subsystems (LPSS) driver and modificaions of that
driver to work around a couple of known BIOS issues from
Mika Westerberg and Heikki Krogerus.
- EC driver fix from Vasiliy Kulikov to make it use get_user() and
put_user() instead of dereferencing user space pointers blindly.
- Assorted ACPI code cleanups from Bjorn Helgaas, Nicholas Mazzuca and
Toshi Kani.
- Modification of the "runtime idle" helper routine to take the return
values of the callbacks executed by it into account and to call
rpm_suspend() if they return 0, which allows some code bloat
reduction to be done, from Rafael J Wysocki and Alan Stern.
- New trace points for PM QoS from Sahara <keun-o.park@windriver.com>.
- PM QoS documentation update from Lan Tianyu.
- Assorted core PM code cleanups and changes from Bernie Thompson,
Bjorn Helgaas, Julius Werner, and Shuah Khan.
- New devfreq driver for the Exynos5-bus device from Abhilash Kesavan.
- Minor devfreq cleanups, fixes and MAINTAINERS update from
MyungJoo Ham, Abhilash Kesavan, Paul Bolle, Rajagopal Venkat, and
Wei Yongjun.
- OMAP Adaptive Voltage Scaling (AVS) SmartReflex voltage control
driver updates from Andrii Tseglytskyi and Nishanth Menon.
/
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Merge tag 'pm+acpi-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI updates from Rafael Wysocki:
"This time the total number of ACPI commits is slightly greater than
the number of cpufreq commits, but Viresh Kumar (who works on cpufreq)
remains the most active patch submitter.
To me, the most significant change is the addition of offline/online
device operations to the driver core (with the Greg's blessing) and
the related modifications of the ACPI core hotplug code. Next are the
freezer updates from Colin Cross that should make the freezing of
tasks a bit less heavy weight.
We also have a couple of regression fixes, a number of fixes for
issues that have not been identified as regressions, two new drivers
and a bunch of cleanups all over.
Highlights:
- Hotplug changes to support graceful hot-removal failures.
It sometimes is necessary to fail device hot-removal operations
gracefully if they cannot be carried out completely. For example,
if memory from a memory module being hot-removed has been allocated
for the kernel's own use and cannot be moved elsewhere, it's
desirable to fail the hot-removal operation in a graceful way
rather than to crash the kernel, but currenty a success or a kernel
crash are the only possible outcomes of an attempted memory
hot-removal. Needless to say, that is not a very attractive
alternative and it had to be addressed.
However, in order to make it work for memory, I first had to make
it work for CPUs and for this purpose I needed to modify the ACPI
processor driver. It's been split into two parts, a resident one
handling the low-level initialization/cleanup and a modular one
playing the actual driver's role (but it binds to the CPU system
device objects rather than to the ACPI device objects representing
processors). That's been sort of like a live brain surgery on a
patient who's riding a bike.
So this is a little scary, but since we found and fixed a couple of
regressions it caused to happen during the early linux-next testing
(a month ago), nobody has complained.
As a bonus we remove some duplicated ACPI hotplug code, because the
ACPI-based CPU hotplug is now going to use the common ACPI hotplug
code.
- Lighter weight freezing of tasks.
These changes from Colin Cross and Mandeep Singh Baines are
targeted at making the freezing of tasks a bit less heavy weight
operation. They reduce the number of tasks woken up every time
during the freezing, by using the observation that the freezer
simply doesn't need to wake up some of them and wait for them all
to call refrigerator(). The time needed for the freezer to decide
to report a failure is reduced too.
Also reintroduced is the check causing a lockdep warining to
trigger when try_to_freeze() is called with locks held (which is
generally unsafe and shouldn't happen).
- cpufreq updates
First off, a commit from Srivatsa S Bhat fixes a resume regression
introduced during the 3.10 cycle causing some cpufreq sysfs
attributes to return wrong values to user space after resume. The
fix is kind of fresh, but also it's pretty obvious once Srivatsa
has identified the root cause.
Second, we have a new freqdomain_cpus sysfs attribute for the
acpi-cpufreq driver to provide information previously available via
related_cpus. From Lan Tianyu.
Finally, we fix a number of issues, mostly related to the
CPUFREQ_POSTCHANGE notifier and cpufreq Kconfig options and clean
up some code. The majority of changes from Viresh Kumar with bits
from Jacob Shin, Heiko Stübner, Xiaoguang Chen, Ezequiel Garcia,
Arnd Bergmann, and Tang Yuantian.
- ACPICA update
A usual bunch of updates from the ACPICA upstream.
During the 3.4 cycle we introduced support for ACPI 5 extended
sleep registers, but they are only supposed to be used if the
HW-reduced mode bit is set in the FADT flags and the code attempted
to use them without checking that bit. That caused suspend/resume
regressions to happen on some systems. Fix from Lv Zheng causes
those registers to be used only if the HW-reduced mode bit is set.
Apart from this some other ACPICA bugs are fixed and code cleanups
are made by Bob Moore, Tomasz Nowicki, Lv Zheng, Chao Guan, and
Zhang Rui.
- cpuidle updates
New driver for Xilinx Zynq processors is added by Michal Simek.
Multidriver support simplification, addition of some missing
kerneldoc comments and Kconfig-related fixes come from Daniel
Lezcano.
- ACPI power management updates
Changes to make suspend/resume work correctly in Xen guests from
Konrad Rzeszutek Wilk, sparse warning fix from Fengguang Wu and
cleanups and fixes of the ACPI device power state selection
routine.
- ACPI documentation updates
Some previously missing pieces of ACPI documentation are added by
Lv Zheng and Aaron Lu (hopefully, that will help people to
uderstand how the ACPI subsystem works) and one outdated doc is
updated by Hanjun Guo.
- Assorted ACPI updates
We finally nailed down the IA-64 issue that was the reason for
reverting commit 9f29ab11dd ("ACPI / scan: do not match drivers
against objects having scan handlers"), so we can fix it and move
the ACPI scan handler check added to the ACPI video driver back to
the core.
A mechanism for adding CMOS RTC address space handlers is
introduced by Lan Tianyu to allow some EC-related breakage to be
fixed on some systems.
A spec-compliant implementation of acpi_os_get_timer() is added by
Mika Westerberg.
The evaluation of _STA is added to do_acpi_find_child() to avoid
situations in which a pointer to a disabled device object is
returned instead of an enabled one with the same _ADR value. From
Jeff Wu.
Intel BayTrail PCH (Platform Controller Hub) support is added to
the ACPI driver for Intel Low-Power Subsystems (LPSS) and that
driver is modified to work around a couple of known BIOS issues.
Changes from Mika Westerberg and Heikki Krogerus.
The EC driver is fixed by Vasiliy Kulikov to use get_user() and
put_user() instead of dereferencing user space pointers blindly.
Code cleanups are made by Bjorn Helgaas, Nicholas Mazzuca and Toshi
Kani.
- Assorted power management updates
The "runtime idle" helper routine is changed to take the return
values of the callbacks executed by it into account and to call
rpm_suspend() if they return 0, which allows us to reduce the
overall code bloat a bit (by dropping some code that's not
necessary any more after that modification).
The runtime PM documentation is updated by Alan Stern (to reflect
the "runtime idle" behavior change).
New trace points for PM QoS are added by Sahara
(<keun-o.park@windriver.com>).
PM QoS documentation is updated by Lan Tianyu.
Code cleanups are made and minor issues are addressed by Bernie
Thompson, Bjorn Helgaas, Julius Werner, and Shuah Khan.
- devfreq updates
New driver for the Exynos5-bus device from Abhilash Kesavan.
Minor cleanups, fixes and MAINTAINERS update from MyungJoo Ham,
Abhilash Kesavan, Paul Bolle, Rajagopal Venkat, and Wei Yongjun.
- OMAP power management updates
Adaptive Voltage Scaling (AVS) SmartReflex voltage control driver
updates from Andrii Tseglytskyi and Nishanth Menon."
* tag 'pm+acpi-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (162 commits)
cpufreq: Fix cpufreq regression after suspend/resume
ACPI / PM: Fix possible NULL pointer deref in acpi_pm_device_sleep_state()
PM / Sleep: Warn about system time after resume with pm_trace
cpufreq: don't leave stale policy pointer in cdbs->cur_policy
acpi-cpufreq: Add new sysfs attribute freqdomain_cpus
cpufreq: make sure frequency transitions are serialized
ACPI: implement acpi_os_get_timer() according the spec
ACPI / EC: Add HP Folio 13 to ec_dmi_table in order to skip DSDT scan
ACPI: Add CMOS RTC Operation Region handler support
ACPI / processor: Drop unused variable from processor_perflib.c
cpufreq: tegra: call CPUFREQ_POSTCHANGE notfier in error cases
cpufreq: s3c64xx: call CPUFREQ_POSTCHANGE notfier in error cases
cpufreq: omap: call CPUFREQ_POSTCHANGE notfier in error cases
cpufreq: imx6q: call CPUFREQ_POSTCHANGE notfier in error cases
cpufreq: exynos: call CPUFREQ_POSTCHANGE notfier in error cases
cpufreq: dbx500: call CPUFREQ_POSTCHANGE notfier in error cases
cpufreq: davinci: call CPUFREQ_POSTCHANGE notfier in error cases
cpufreq: arm-big-little: call CPUFREQ_POSTCHANGE notfier in error cases
cpufreq: powernow-k8: call CPUFREQ_POSTCHANGE notfier in error cases
cpufreq: pcc: call CPUFREQ_POSTCHANGE notfier in error cases
...
Pull perf updates from Ingo Molnar:
"Kernel improvements:
- watchdog driver improvements by Li Zefan
- Power7 CPI stack events related improvements by Sukadev Bhattiprolu
- event multiplexing via hrtimers and other improvements by Stephane
Eranian
- kernel stack use optimization by Andrew Hunter
- AMD IOMMU uncore PMU support by Suravee Suthikulpanit
- NMI handling rate-limits by Dave Hansen
- various hw_breakpoint fixes by Oleg Nesterov
- hw_breakpoint overflow period sampling and related signal handling
fixes by Jiri Olsa
- Intel Haswell PMU support by Andi Kleen
Tooling improvements:
- Reset SIGTERM handler in workload child process, fix from David
Ahern.
- Makefile reorganization, prep work for Kconfig patches, from Jiri
Olsa.
- Add automated make test suite, from Jiri Olsa.
- Add --percent-limit option to 'top' and 'report', from Namhyung
Kim.
- Sorting improvements, from Namhyung Kim.
- Expand definition of sysfs format attribute, from Michael Ellerman.
Tooling fixes:
- 'perf tests' fixes from Jiri Olsa.
- Make Power7 CPI stack events available in sysfs, from Sukadev
Bhattiprolu.
- Handle death by SIGTERM in 'perf record', fix from David Ahern.
- Fix printing of perf_event_paranoid message, from David Ahern.
- Handle realloc failures in 'perf kvm', from David Ahern.
- Fix divide by 0 in variance, from David Ahern.
- Save parent pid in thread struct, from David Ahern.
- Handle JITed code in shared memory, from Andi Kleen.
- Fixes for 'perf diff', from Jiri Olsa.
- Remove some unused struct members, from Jiri Olsa.
- Add missing liblk.a dependency for python/perf.so, fix from Jiri
Olsa.
- Respect CROSS_COMPILE in liblk.a, from Rabin Vincent.
- No need to do locking when adding hists in perf report, only 'top'
needs that, from Namhyung Kim.
- Fix alignment of symbol column in in the hists browser (top,
report) when -v is given, from NAmhyung Kim.
- Fix 'perf top' -E option behavior, from Namhyung Kim.
- Fix bug in isupper() and islower(), from Sukadev Bhattiprolu.
- Fix compile errors in bp_signal 'perf test', from Sukadev
Bhattiprolu.
... and more things"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (102 commits)
perf/x86: Disable PEBS-LL in intel_pmu_pebs_disable()
perf/x86: Fix shared register mutual exclusion enforcement
perf/x86/intel: Support full width counting
x86: Add NMI duration tracepoints
perf: Drop sample rate when sampling is too slow
x86: Warn when NMI handlers take large amounts of time
hw_breakpoint: Introduce "struct bp_cpuinfo"
hw_breakpoint: Simplify *register_wide_hw_breakpoint()
hw_breakpoint: Introduce cpumask_of_bp()
hw_breakpoint: Simplify the "weight" usage in toggle_bp_slot() paths
hw_breakpoint: Simplify list/idx mess in toggle_bp_slot() paths
perf/x86/intel: Add mem-loads/stores support for Haswell
perf/x86/intel: Support Haswell/v4 LBR format
perf/x86/intel: Move NMI clearing to end of PMI handler
perf/x86/intel: Add Haswell PEBS support
perf/x86/intel: Add simple Haswell PMU support
perf/x86/intel: Add Haswell PEBS record support
perf/x86/intel: Fix sparse warning
perf/x86/amd: AMD IOMMU Performance Counter PERF uncore PMU implementation
perf/x86/amd: Add IOMMU Performance Counter resource management
...
Here's the big driver core merge for 3.11-rc1
Lots of little things, and larger firmware subsystem updates, all
described in the shortlog. Nice thing here is that we finally get rid
of CONFIG_HOTPLUG, after 10+ years, thanks to Stephen Rohtwell (it had
been always on for a number of kernel releases, now it's just removed.)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here's the big driver core merge for 3.11-rc1
Lots of little things, and larger firmware subsystem updates, all
described in the shortlog. Nice thing here is that we finally get rid
of CONFIG_HOTPLUG, after 10+ years, thanks to Stephen Rohtwell (it had
been always on for a number of kernel releases, now it's just
removed)"
* tag 'driver-core-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (27 commits)
driver core: device.h: fix doc compilation warnings
firmware loader: fix another compile warning with PM_SLEEP unset
build some drivers only when compile-testing
firmware loader: fix compile warning with PM_SLEEP set
kobject: sanitize argument for format string
sysfs_notify is only possible on file attributes
firmware loader: simplify holding module for request_firmware
firmware loader: don't export cache_firmware and uncache_firmware
drivers/base: Use attribute groups to create sysfs memory files
firmware loader: fix compile warning
firmware loader: fix build failure with !CONFIG_FW_LOADER_USER_HELPER
Documentation: Updated broken link in HOWTO
Finally eradicate CONFIG_HOTPLUG
driver core: firmware loader: kill FW_ACTION_NOHOTPLUG requests before suspend
driver core: firmware loader: don't cache FW_ACTION_NOHOTPLUG firmware
Documentation: Tidy up some drivers/base/core.c kerneldoc content.
platform_device: use a macro instead of platform_driver_register
firmware: move EXPORT_SYMBOL annotations
firmware: Avoid deadlock of usermodehelper lock at shutdown
dell_rbu: Select CONFIG_FW_LOADER_USER_HELPER explicitly
...
Here's the large staging tree merge for 3.11-rc1
Huge thing here is the Lustre client code. Unfortunatly, due to it not
building properly on a wide variety of different architectures (this was
production code???), it is currently disabled from the build so as to
not annoy people.
Other than Lustre, there are loads of comedi patches, working to clean
up that subsystem, iio updates and new drivers, and a load of cleanups
from the OPW applicants in their quest to get a summer internship.
All of these have been in the linux-next releases for a while (hence the
Lustre code being disabled.)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging tree update from Greg KH:
"Here's the large staging tree merge for 3.11-rc1
Huge thing here is the Lustre client code. Unfortunatly, due to it
not building properly on a wide variety of different architectures
(this was production code???), it is currently disabled from the build
so as to not annoy people.
Other than Lustre, there are loads of comedi patches, working to clean
up that subsystem, iio updates and new drivers, and a load of cleanups
from the OPW applicants in their quest to get a summer internship.
All of these have been in the linux-next releases for a while (hence
the Lustre code being disabled)"
Fixed up trivial conflict in drivers/staging/serqt_usb2/serqt_usb2.c due
to independent renamings in the staging driver cleanup and the USB
tree..
* tag 'staging-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (868 commits)
Revert "Revert "Revert "staging/lustre: drop CONFIG_BROKEN dependency"""
staging: rtl8192u: fix line length in r819xU_phy.h
staging: rtl8192u: rename variables in r819xU_phy.h
staging: rtl8192u: fix comments in r819xU_phy.h
staging: rtl8192u: fix whitespace in r819xU_phy.h
staging: rtl8192u: fix newlines in r819xU_phy.c
staging: comedi: unioxx5: use comedi_alloc_spriv()
staging: comedi: unioxx5: fix unioxx5_detach()
silicom: checkpatch: errors caused by macros
Staging: silicom: remove the board_t typedef in bpctl_mod.c
Staging: silicom: capitalize labels in the bp_media_type enum
Staging: silicom: remove bp_media_type enum typedef
staging: rtl8192u: replace msleep(1) with usleep_range() in r819xU_phy.c
staging: rtl8192u: rename dwRegRead and rtStatus in r819xU_phy.c
staging: rtl8192u: replace __FUNCTION__ in r819xU_phy.c
staging: rtl8192u: limit line size in r819xU_phy.c
zram: allow request end to coincide with disksize
staging: drm/imx: use generic irq chip unused field to block out invalid irqs
staging: drm/imx: use generic irqchip
staging: drm/imx: ipu-dmfc: use defines for ipu channel numbers
...
/sys/module/MODULENAME is not created unconditionally. This can be
confusing so document the current conditions.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Rob Landley <rob@landley.net>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Several InfiniBand HCAs allow configuring the completion vector per
CQ. This allows spreading the workload created by IB completion
interrupts over multiple MSI-X vectors and hence over multiple CPU
cores. In other words, configuring the completion vector properly not
only allows reducing latency on an initiator connected to multiple
SRP targets but also allows improving throughput.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
* pm-cpufreq:
cpufreq: don't leave stale policy pointer in cdbs->cur_policy
acpi-cpufreq: Add new sysfs attribute freqdomain_cpus
cpufreq: make sure frequency transitions are serialized
Konrad writes:
It has the 'feature-max-indirect-segments' implemented in both backend
and frontend. The current problem with the backend and frontend is that the
segment size is limited to 11 pages. It means we can at most squeeze in 44kB per
request. The ring can hold 32 (next power of two below 36) requests, meaning we
can do 1.4M of outstanding requests. Nowadays that is not enough.
The problem in the past was addressed in two ways - but neither one went upstream.
The first solution to this proposed by Justin from Spectralogic was to negotiate
the segment size. This means that the ‘struct blkif_sring_entry’ is now a variable size.
It can expand from 112 bytes (cover 11 pages of data - 44kB) to 1580 bytes
(256 pages of data - so 1MB). It is a simple extension by just making the array in the
request expand from 11 to a variable size negotiated. But it had limits: this extension
still limits the number of segments per request to 255 (as the total number must be
specified in the request, which only has an 8-bit field for that purpose).
The other solution (from Intel - Ronghui) was to create one extra ring that only has the
‘struct blkif_request_segment’ in them. The ‘struct blkif_request’ would be changed to have
an index in said ‘segment ring’. There is only one segment ring. This means that the size of
the initial ring is still the same. The requests would point to the segment and enumerate out
how many of the indexes it wants to use. The limit is of course the size of the segment.
If one assumes a one-page segment this means we can in one request cover ~4MB.
Those patches were posted as RFC and the author never followed up on the ideas on changing
it to be a bit more flexible.
There is yet another mechanism that could be employed (which these patches implement) - and it
borrows from VirtIO protocol. And that is the ‘indirect descriptors’. This very similar to
what Intel suggests, but with a twist. The twist is to negotiate how many of these
'segment' pages (aka indirect descriptor pages) we want to support (in reality we negotiate
how many entries in the segment we want to cover, and we module the number if it is
bigger than the segment size).
This means that with the existing 36 slots in the ring (single page) we can cover:
32 slots * each blkif_request_indirect covers: 512 * 4096 ~= 64M. Since we ample space
in the blkif_request_indirect to span more than one indirect page, that number (64M)
can be also multiplied by eight = 512MB.
Roger Pau Monne took the idea and implemented them in these patches. They work
great and the corner cases (migration between backends with and without this extension)
work nicely. The backend has a limit right now off how many indirect entries
it can handle: one indirect page, and at maximum 256 entries (out of 512 - so 50% of the page
is used). That comes out to 32 slots * 256 entries in a indirect page * 1 indirect page
per request * 4096 = 32MB.
This is a conservative number that can change in the future. Right now it strikes
a good balance between giving excellent performance, memory usage in the backend, and
balancing the needs of many guests.
In the patchset there is also the split of the blkback structure to be per-VBD.
This means that the spinlock contention we had with many guests trying to do I/O and
all the blkback threads hitting the same lock has been eliminated.
Also there are bug-fixes to deal with oddly sized sectors, insane amounts on
th ring, and also a security fix (posted earlier).
Commits fcf8058 (cpufreq: Simplify cpufreq_add_dev()) and aa77a52
(cpufreq: acpi-cpufreq: Don't set policy->related_cpus from .init())
changed the contents of the "related_cpus" sysfs attribute on systems
where acpi-cpufreq is used and user space can't get the list of CPUs
which are in the same hardware coordination CPU domain (provided by
the ACPI AML method _PSD) via "related_cpus" any more.
To make up for that loss add a new sysfs attribute "freqdomian_cpus"
for the acpi-cpufreq driver which exposes the list of CPUs in the
same domain regardless of whether it is coordinated by hardware or
software.
[rjw: Changelog, documentation]
References: https://bugzilla.kernel.org/show_bug.cgi?id=58761
Reported-by: Jean-Philippe Halimi <jean-philippe.halimi@exascale-computing.eu>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add documenation for new ABI entries.
Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add a simple sysfs interface to the generic PWM framework.
/sys/class/pwm/
`-- pwmchipN/ for each PWM chip
|-- export (w/o) ask the kernel to export a PWM channel
|-- npwm (r/o) number of PWM channels in this PWM chip
|-- pwmX/ for each exported PWM channel
| |-- duty_cycle (r/w) duty cycle (in nanoseconds)
| |-- enable (r/w) enable/disable PWM
| |-- period (r/w) period (in nanoseconds)
| `-- polarity (r/w) polarity of PWM (normal/inversed)
`-- unexport (w/o) return a PWM channel to the kernel
Based on work by Lars Poeschel.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Lars Poeschel <poeschel@lemonage.de>
Cc: Ryan Mallon <rmallon@gmail.com>
Cc: Rob Landley <rob@landley.net>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Add initial ABI documentation for ACPI devices' sysfs interfaces.
Contacts information fields are filled with current ACPI maintainer and the
relevant authors are carbon copied.
[rjw: Use my e-mail address that's likely to be valid longer.]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
All function drivers are now converted to our new configfs-based
binding. Eventually this will help us getting rid of in-kernel
gadget drivers and only keep function drivers in the kernel.
MUSB was taught that it needs to be built for host-only and
device-only modes too. We had this support long ago but it
involved a ridiculous amount of ifdefs. Now we have a much
cleaner approach.
Samsung Exynos4 platform now implements HSIC support.
We're introducing support for AB8540 and AB9540 PHYs.
MUSB module reinsertion now works as expected, before we were
getting -EBUSY being returned by the resource checks done on
driver core.
DWC3 now has minimum support for TI's AM437x series of SoCs.
OMAP5 USB3 PHY learned one extra DPLL configuration values because
that PHY is reused in TI's DRA7xx devices.
We're introducing support for Faraday fotg210 UDCs.
Last, but not least, the usual set of non-critical fixes and cleanups
ranging from usage of platform_{get,set}_drvdata to lock improvements.
Signed-of-by: Felipe Balbi <balbi@ti.com>
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Merge tag 'usb-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes:
usb: patches for v3.11 merge window
All function drivers are now converted to our new configfs-based
binding. Eventually this will help us getting rid of in-kernel
gadget drivers and only keep function drivers in the kernel.
MUSB was taught that it needs to be built for host-only and
device-only modes too. We had this support long ago but it
involved a ridiculous amount of ifdefs. Now we have a much
cleaner approach.
Samsung Exynos4 platform now implements HSIC support.
We're introducing support for AB8540 and AB9540 PHYs.
MUSB module reinsertion now works as expected, before we were
getting -EBUSY being returned by the resource checks done on
driver core.
DWC3 now has minimum support for TI's AM437x series of SoCs.
OMAP5 USB3 PHY learned one extra DPLL configuration values because
that PHY is reused in TI's DRA7xx devices.
We're introducing support for Faraday fotg210 UDCs.
Last, but not least, the usual set of non-critical fixes and cleanups
ranging from usage of platform_{get,set}_drvdata to lock improvements.
Signed-of-by: Felipe Balbi <balbi@ti.com>
update ABI documentation with current paths related to scan_elements folder
Paths changed long time ago in commit: 26d25ae3f0
Signed-off-by: Alexandre Relange <alexandre@relange.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Jaegeuk Kim