Merge tag 'extcon-next-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next
Chanwoo writes:
Update extcon for 3.13
This patchset modify extcon core to remove unnecessary allocation sequence for
'dev' instance and change extcon_dev_register() interface. extcon-gpio use
gpiolib API to get debounce time and include small fix of extcon core/device
driver.
Detailed description for patchset:
1. Modify extcon core driver
- The extcon-gpio driver use gpio_set_debounce() API provided from gpiolib
if gpio driver for SoC support gpio_set_debounce() function and support 'gpio_
activ_low' filed to check whether gpio active state is 1(high) or 0(low).
- Change field type of 'dev' in structure extcon_dev and remove the sequence
of allocating memory of 'struct dev' on extcon_dev_register() function because
extcon device must need 'struct device.
- Change extcon_dev_register() prototype to simplify it and remove unnecessary
parameter as below:
2. Fix coding style and typo
- extcon core : Fix indentation coding style and remove unnecessary casting
- extcon-max8997 : Fix checkpatch warning
- extcon-max77693 : Fix checkpatch warning
- extcon-arizona : Fix typo of comment and modify minor issue
- extcon-palmas : Use dev_get_platdata()
3. Modify extcon-arizona driver
- Modify minor issue about micbias and comparision statement
extcon: Simplify extcon_dev_register() prototype by removing unnecessary parameter
This patch remove extcon_dev_register()'s second parameter which means
the pointer of parent device to simplify prototype of this function.
So, if extcon device has the parent device, it should set the pointer of
parent device to edev.dev.parent in extcon device driver instead of in
extcon_dev_register().
Cc: Graeme Gregory <gg@slimlogic.co.uk> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Cc: Mark Brown <broonie@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
extcon: Change field type of 'dev' in extcon_dev structure
The extcon device must always need 'struct device' so this patch change
field type of 'dev' instead of allocating memory for 'struct device' on
extcon_dev_register() function.
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <cw00.choi@samsung.com>
Charles Keepax [Mon, 23 Sep 2013 13:33:59 +0000 (14:33 +0100)]
extcon: arizona: Don't require micbias to be shifted in pdata
Every other pdata field is specified unshifted the patch handles
shifting for the MICBIAS from the microphone detection polarity
configurations in the extcon driver rather than demanding it in
pdata to match other fields.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Jingoo Han [Wed, 11 Sep 2013 04:22:18 +0000 (13:22 +0900)]
extcon: use dev_get_platdata()
Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Jingoo Han [Mon, 9 Sep 2013 05:33:32 +0000 (14:33 +0900)]
extcon: Remove casting the return value which is a void pointer
Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Charles Keepax [Wed, 7 Aug 2013 11:17:14 +0000 (12:17 +0100)]
extcon: arizona: Clear trig_sts bits on all paths
We want the trig_sts bits to be cleared in all cases where we consider
the jack detection interrupt to have been handled. Specifically, if a
duplicate detection event was suppressed these bits were not cleared
causing the CODEC to not enter a low power state. This patch clears the
bits on the duplicate detection code path.
Dan Carpenter [Mon, 16 Sep 2013 21:58:36 +0000 (00:58 +0300)]
hv: vmbus: fix vmbus_recvpacket_raw() return code
Don't return success if the buffer has not been initialized.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Sample Implementation of Intel MIC User Space Daemon.
This patch introduces a sample user space daemon which
implements the virtio device backends on the host. The daemon
creates/removes/configures virtio device backends by communicating with
the Intel MIC Host Driver. The virtio devices currently supported are
virtio net, virtio console and virtio block. Virtio net supports TSO/GSO.
The daemon also monitors card shutdown status and takes appropriate actions
like killing the virtio backends and resetting the card upon card shutdown
and crashes.
Ashutosh Dixit [Thu, 5 Sep 2013 23:42:28 +0000 (16:42 -0700)]
Intel MIC Card Driver Changes for Virtio Devices.
This patch introduces the card "Virtio over PCIe" interface for
Intel MIC. It allows virtio drivers on the card to communicate with their
user space backends on the host via a device page. Ring 3 apps on the host
can add, remove and configure virtio devices. A thin MIC specific
virtio_config_ops is implemented which is borrowed heavily from previous
similar implementations in lguest and s390 @
drivers/lguest/lguest_device.c
drivers/s390/kvm/kvm_virtio.c
Co-author: Sudeep Dutt <sudeep.dutt@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: 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> 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>
Ashutosh Dixit [Thu, 5 Sep 2013 23:42:18 +0000 (16:42 -0700)]
Intel MIC Host Driver Changes for Virtio Devices.
This patch introduces the host "Virtio over PCIe" interface for
Intel MIC. It allows creating user space backends on the host and instantiating
virtio devices for them on the Intel MIC card. It uses the existing VRINGH
infrastructure in the kernel to access virtio rings from the host. A character
device per MIC is exposed with IOCTL, mmap and poll callbacks. This allows the
user space backend to:
(a) add/remove a virtio device via a device page.
(b) map (R/O) virtio rings and device page to user space.
(c) poll for availability of data.
(d) copy a descriptor or entire descriptor chain to/from the card.
(e) modify virtio configuration.
(f) handle virtio device reset.
The buffers are copied over using CPU copies for this initial patch
and host initiated MIC DMA support is planned for future patches.
The avail and desc virtio rings are in host memory and the used ring
is in card memory to maximize writes across PCIe for performance.
Co-author: Sudeep Dutt <sudeep.dutt@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: 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> 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 does the following:
a) Initializes the Intel MIC X100 platform device and driver.
b) Sets up support to handle shutdown requests from the host.
c) Maps the device page after obtaining the device page address
from the scratchpad registers updated by the host.
d) Informs the host upon a card crash by registering a panic notifier.
e) Informs the host upon a poweroff/halt event.
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: 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> 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 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 features:
a) MSIx, MSI and legacy interrupt support.
b) System Memory Page Table(SMPT) support. SMPT enables system memory
access from the card. On X100 devices the host can program 32 SMPT
registers each capable of accessing 16GB of system memory
address space from X100 devices. The registers can thereby be used
to access a cumulative 512GB of system memory address space from
X100 devices at any point in time.
Co-author: Sudeep Dutt <sudeep.dutt@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: 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> 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>
Oliver Schinagl [Tue, 3 Sep 2013 10:33:27 +0000 (12:33 +0200)]
ARM: sunxi: Initial support for Allwinner's Security ID fuses
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>
Olaf Hering [Tue, 6 Aug 2013 18:55:38 +0000 (20:55 +0200)]
Tools: hv: use single send+recv buffer
send_buffer is used only once during registration. To reduce runtime
memory usage reuse the recv_buffer for registration. Also use
NLMSG_LENGTH instead of NLMSG_HDRLEN to take alignment into account.
Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Olaf Hering [Wed, 7 Aug 2013 17:14:37 +0000 (19:14 +0200)]
Tools: hv: cache FQDN in kvp_daemon to avoid timeouts
kvp_daemon does some operations which take an unpredicable amount of
time. In addition the kernel driver gives the kvp_daemon a 5 second
timeout to respond to message from the host. If an operation such as
getaddrinfo takes a long time and the timeout triggers then netlink
errors occour. As a result of such errors the daemon just terminates and
the service becomes unavailable.
Idendifying and fixing these shortcomings in the kernel-userland
communication protocol will be done in separate patches. This change
fixes just one obvious timeout bug.
Update kvp_get_domain_name to not return a value, better diagnostic for
the consumer of the hostname string, remove trailing newline in error
case, use snprintf to not overrun output buffer, get hostname only once
and return the cached result.
Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Chanwoo Choi [Fri, 23 Aug 2013 01:21:37 +0000 (10:21 +0900)]
extcon: Fix up 80 column coding style issues
This patch fix 80 column coding sytle issues by using checkpatch script.
Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Cc: Mark Brown <broonie@kernel.org> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jingoo Han [Mon, 23 Sep 2013 01:38:26 +0000 (10:38 +0900)]
misc: pti: remove unnecessary pci_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jingoo Han [Mon, 23 Sep 2013 01:37:24 +0000 (10:37 +0900)]
misc: mei: remove unnecessary pci_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jingoo Han [Mon, 23 Sep 2013 01:35:06 +0000 (10:35 +0900)]
misc: tifm: remove unnecessary pci_set_drvdata()
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This moves the ringbuffer bus attributes to the dev_groups structure,
deletes the now unneeded struct hv_device_info, and removes some now
unused functions, and variables as everything is now moved to the
dev_groups structure, dev_attrs is no longer needed.
It's only used once, only contains 2 function calls, so just make those
calls directly, deleting the function, and the now unneeded structure
entirely.
hv: move "client/server_monitor_conn_id" bus attributes to dev_groups
This moves the "client_monitor_conn_id" and "server_monitor_conn_id" bus
attributes to the dev_groups structure, removing the need for it to be
in a temporary structure.
hv: move "client/server_monitor_latency" bus attributes to dev_groups
This moves the "client_monitor_latency" and "server_monitor_latency" bus
attributes to the dev_groups structure, removing the need for it to be
in a temporary structure.
hv: move "client/server_monitor_pending" bus attributes to dev_groups
This moves the "client_monitor_pending" and "server_monitor_pending" bus
attributes to the dev_groups structure, removing the need for it to be
in a temporary structure.
monitor_pages was a void pointer, containing an unknown number of arrays that
we just "knew" were a child and parent array of a specific size. Instead of
that implicit knowledge, let's make them a real pointer, allowing us to have
type safety, and a semblance of sane addressing schemes.
This patch is the first in a series that moves the hv bus code to use the
dev_groups field instead of dev_attrs, as dev_attrs is going away in future
kernel releases.
It moves the id sysfs file to the dev_groups structure, and creates the needed
show/store functions, instead of relying on one "universal" function for this.
By doing this, it removes the need for this to be in a temporary structure.
Jingoo Han [Mon, 9 Sep 2013 05:15:52 +0000 (14:15 +0900)]
misc: ibmasm: Remove casting the return value which is a void pointer
Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jingoo Han [Mon, 9 Sep 2013 05:14:50 +0000 (14:14 +0900)]
char: xilinx_hwicap: Remove casting the return value which is a void pointer
Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tomas Winkler [Wed, 4 Sep 2013 12:35:52 +0000 (15:35 +0300)]
hpet: remove useless check if fixmem32 is NULL
fixmem32 is assigned to address of res->data member
so the address is always valid
Actually since we are not checking for res != NULL
static analyzing is complaining about referencing the pointer
and consequent check for null.
The code snippet looks confusing also for human eyes.
Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Chen Gang [Mon, 2 Sep 2013 07:54:03 +0000 (15:54 +0800)]
drivers: misc: bmp085: remove '__init' from mp085_get_of_properties()
bmp085_get_of_properties() is called by bmp085_init_client() which is
called by bmp085_probe() which is an EXPORT_SYMBOL_GPL function.
bmp085_probe() is really used as a probe function by another modules
(e.g. bmp085-i2c.c, bmp085-spi.c).
Except bmp085_get_of_properties(), all functions have no '__init', so
need remove '__init' from bmp085_get_of_properties() too, or at least,
it will report related warning:
WARNING: vmlinux.o(.text+0x4c8a07): Section mismatch in reference from the variable .LM171 to the variable .init.text:_bmp085_get_of_properties
The function .LM171() references
the variable __init _bmp085_get_of_properties.
This is often because .LM171 lacks a __init
annotation or the annotation of _bmp085_get_of_properties is wrong.
Signed-off-by: Chen Gang <gang.chen@asianux.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tomas Winkler [Mon, 16 Sep 2013 20:44:43 +0000 (23:44 +0300)]
mei: propagate error from write routines instead of ENODEV
ENODEV will cause application to try to reconnect since
it assumes that device went through the reset
write errors are not always fatal it can happen due to
resource contention
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tomas Winkler [Mon, 2 Sep 2013 00:11:04 +0000 (03:11 +0300)]
mei: revamp read and write length checks
1. Return zero on zero length read and writes
2. For a too large write return -EFBIG as defined in man write(2)
EFBIG An attempt was made to write a file that
exceeds the implementation-defined maximum
file size or the process's file size limit,
or to write at a position past the maximum
allowed offset.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tomas Winkler [Mon, 2 Sep 2013 00:11:03 +0000 (03:11 +0300)]
mei: fix format compilation warrning on 32 bit architecture
hbm.c: In function mei_hbm_me_cl_allocate:
hbm.c:52:212: warning: format %zd expects argument of type signed size_t but argument 4 has type long unsigned
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tomas Winkler [Mon, 2 Sep 2013 00:11:01 +0000 (03:11 +0300)]
mei: make sure that me_clients_map big enough before copying
To make static analyzers happy validated that
sizeof me_clients_map is larger than sizeof valid_addresses from the
enumeration response before memcpy
We can use BUILD_ON macro as both arrays are defined statically
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge tag 'staging-3.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging fixes from Greg KH:
"Here are a number of small staging tree and iio driver fixes. Nothing
major, just lots of little things"
* tag 'staging-3.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (34 commits)
iio:buffer_cb: Add missing iio_buffer_init()
iio: Prevent race between IIO chardev opening and IIO device free
iio: fix: Keep a reference to the IIO device for open file descriptors
iio: Stop sampling when the device is removed
iio: Fix crash when scan_bytes is computed with active_scan_mask == NULL
iio: Fix mcp4725 dev-to-indio_dev conversion in suspend/resume
iio: Fix bma180 dev-to-indio_dev conversion in suspend/resume
iio: Fix tmp006 dev-to-indio_dev conversion in suspend/resume
iio: iio_device_add_event_sysfs() bugfix
staging: iio: ade7854-spi: Fix return value
staging:iio:hmc5843: Fix measurement conversion
iio: isl29018: Fix uninitialized value
staging:iio:dummy fix kfifo_buf kconfig dependency issue if kfifo modular and buffer enabled for built in dummy driver.
iio: at91: fix adc_clk overflow
staging: line6: add bounds check in snd_toneport_source_put()
Staging: comedi: Fix dependencies for drivers misclassified as PCI
staging: r8188eu: Adjust RX gain
staging: r8188eu: Fix smatch warning in core/rtw_ieee80211.
staging: r8188eu: Fix smatch error in core/rtw_mlme_ext.c
staging: r8188eu: Fix Smatch off-by-one warning in hal/rtl8188e_hal_init.c
...
Merge tag 'usb-3.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a number of small USB fixes for 3.12-rc2.
One is a revert of a EHCI change that isn't quite ready for 3.12.
Others are minor things, gadget fixes, Kconfig fixes, and some quirks
and documentation updates.
All have been in linux-next for a bit"
* tag 'usb-3.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: pl2303: distinguish between original and cloned HX chips
USB: Faraday fotg210: fix email addresses
USB: fix typo in usb serial simple driver Kconfig
Revert "USB: EHCI: support running URB giveback in tasklet context"
usb: s3c-hsotg: do not disconnect gadget when receiving ErlySusp intr
usb: s3c-hsotg: fix unregistration function
usb: gadget: f_mass_storage: reset endpoint driver data when disabled
usb: host: fsl-mph-dr-of: Staticize local symbols
usb: gadget: f_eem: Staticize eem_alloc
usb: gadget: f_ecm: Staticize ecm_alloc
usb: phy: omap-usb3: Fix return value
usb: dwc3: gadget: avoid memory leak when failing to allocate all eps
usb: dwc3: remove extcon dependency
usb: gadget: add '__ref' for rndis_config_register() and cdc_config_register()
usb: dwc3: pci: add support for BayTrail
usb: gadget: cdc2: fix conversion to new interface of f_ecm
usb: gadget: fix a bug and a WARN_ON in dummy-hcd
usb: gadget: mv_u3d_core: fix violation of locking discipline in mv_u3d_ep_disable()
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
- some small fixes for msm and exynos
- a regression revert affecting nouveau users with old userspace
- intel pageflip deadlock and gpu hang fixes, hsw modesetting hangs
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (22 commits)
Revert "drm: mark context support as a legacy subsystem"
drm/i915: Don't enable the cursor on a disable pipe
drm/i915: do not update cursor in crtc mode set
drm/exynos: fix return value check in lowlevel_buffer_allocate()
drm/exynos: Fix address space warnings in exynos_drm_fbdev.c
drm/exynos: Fix address space warning in exynos_drm_buf.c
drm/exynos: Remove redundant OF dependency
drm/msm: drop unnecessary set_need_resched()
drm/i915: kill set_need_resched
drm/msm: fix potential NULL pointer dereference
drm/i915/dvo: set crtc timings again for panel fixed modes
drm/i915/sdvo: Robustify the dtd<->drm_mode conversions
drm/msm: workaround for missing irq
drm/msm: return -EBUSY if bo still active
drm/msm: fix return value check in ERR_PTR()
drm/msm: fix cmdstream size check
drm/msm: hangcheck harder
drm/msm: handle read vs write fences
drm/i915/sdvo: Fully translate sync flags in the dtd->mode conversion
drm/i915: Use proper print format for debug prints
...
Merge branch 'for-3.12/core' of git://git.kernel.dk/linux-block
Pull block IO fixes from Jens Axboe:
"After merge window, no new stuff this time only a collection of neatly
confined and simple fixes"
* 'for-3.12/core' of git://git.kernel.dk/linux-block:
cfq: explicitly use 64bit divide operation for 64bit arguments
block: Add nr_bios to block_rq_remap tracepoint
If the queue is dying then we only call the rq->end_io callout. This leaves bios setup on the request, because the caller assumes when the blk_execute_rq_nowait/blk_execute_rq call has completed that the rq->bios have been cleaned up.
bio-integrity: Fix use of bs->bio_integrity_pool after free
blkcg: relocate root_blkg setting and clearing
block: Convert kmalloc_node(...GFP_ZERO...) to kzalloc_node(...)
block: trace all devices plug operation
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"These are mostly bug fixes and a two small performance fixes. The
most important of the bunch are Josef's fix for a snapshotting
regression and Mark's update to fix compile problems on arm"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (25 commits)
Btrfs: create the uuid tree on remount rw
btrfs: change extent-same to copy entire argument struct
Btrfs: dir_inode_operations should use btrfs_update_time also
btrfs: Add btrfs: prefix to kernel log output
btrfs: refuse to remount read-write after abort
Btrfs: btrfs_ioctl_default_subvol: Revert back to toplevel subvolume when arg is 0
Btrfs: don't leak transaction in btrfs_sync_file()
Btrfs: add the missing mutex unlock in write_all_supers()
Btrfs: iput inode on allocation failure
Btrfs: remove space_info->reservation_progress
Btrfs: kill delay_iput arg to the wait_ordered functions
Btrfs: fix worst case calculator for space usage
Revert "Btrfs: rework the overcommit logic to be based on the total size"
Btrfs: improve replacing nocow extents
Btrfs: drop dir i_size when adding new names on replay
Btrfs: replay dir_index items before other items
Btrfs: check roots last log commit when checking if an inode has been logged
Btrfs: actually log directory we are fsync()'ing
Btrfs: actually limit the size of delalloc range
Btrfs: allocate the free space by the existed max extent size when ENOSPC
...
Merge tag 'iio-fixes-for-3.12a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes:
First round of IIO fixes for 3.12
A series of wrong 'struct dev' assumptions in suspend/resume callbacks
following on from this issue being identified in a new driver review.
One to watch out for in future.
A number of driver specific fixes
1) at91 - fix a overflow in clock rate computation
2) dummy - Kconfig dependency issue
3) isl29018 - uninitialized value
4) hmc5843 - measurement conversion bug introduced by recent cleanup.
5) ade7854-spi - wrong return value.
Some IIO core fixes
1) Wrong value picked up for event code creation for a modified channel
2) A null dereference on failure to initialize a buffer after no buffer has
been in use, when using the available_scan_masks approach.
3) Sampling not stopped when a device is removed. Effects forced removal
such as hot unplugging.
4) Prevent device going away if a chrdev is still open in userspace.
5) Prevent race on chardev opening and device being freed.
6) Add a missing iio_buffer_init in the call back buffer.
These last few are the first part of a set from Lars-Peter Clausen who
has been taking a closer look at our removal paths and buffer handling
than anyone has for quite some time.
Adding the number of bios in a remapped request to 'block_rq_remap'
tracepoint.
Request remapper clones bios in a request to track the completion
status of each bio. So the number of bios can be useful information
for investigation.
Related discussions:
http://www.redhat.com/archives/dm-devel/2013-August/msg00084.html
http://www.redhat.com/archives/dm-devel/2013-September/msg00024.html
Josef Bacik [Sat, 21 Sep 2013 02:33:20 +0000 (22:33 -0400)]
Btrfs: create the uuid tree on remount rw
Users have been complaining of the uuid tree stuff warning that there is no uuid
root when trying to do snapshot operations. This is because if you mount -o ro
we will not create the uuid tree. But then if you mount -o rw,remount we will
still not create it and then any subsequent snapshot/subvol operations you try
to do will fail gloriously. Fix this by creating the uuid_root on remount rw if
it was not already there. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Mark Fasheh [Tue, 17 Sep 2013 22:43:54 +0000 (15:43 -0700)]
btrfs: change extent-same to copy entire argument struct
btrfs_ioctl_file_extent_same() uses __put_user_unaligned() to copy some data
back to it's argument struct. Unfortunately, not all architectures provide
__put_user_unaligned(), so compiles break on them if btrfs is selected.
Instead, just copy the whole struct in / out at the start and end of
operations, respectively.
Signed-off-by: Mark Fasheh <mfasheh@suse.de> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Guangyu Sun [Mon, 16 Sep 2013 17:42:03 +0000 (10:42 -0700)]
Btrfs: dir_inode_operations should use btrfs_update_time also
Commit 2bc5565286121d2a77ccd728eb3484dff2035b58 (Btrfs: don't update atime on
RO subvolumes) ensures that the access time of an inode is not updated when
the inode lives in a read-only subvolume.
However, if a directory on a read-only subvolume is accessed, the atime is
updated. This results in a write operation to a read-only subvolume. I
believe that access times should never be updated on read-only subvolumes.
Reported-by: Koen De Wit <koen.de.wit@oracle.com> Signed-off-by: Guangyu Sun <guangyu.sun@oracle.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Frank Holton [Fri, 13 Sep 2013 15:46:50 +0000 (11:46 -0400)]
btrfs: Add btrfs: prefix to kernel log output
The kernel log entries for device label %s and device fsid %pU
are missing the btrfs: prefix. Add those here.
Signed-off-by: Frank Holton <fholton@gmail.com> Reviewed-by: David Sterba <dsterba@suse.cz> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
David Sterba [Fri, 13 Sep 2013 15:41:20 +0000 (17:41 +0200)]
btrfs: refuse to remount read-write after abort
It's still possible to flip the filesystem into RW mode after it's
remounted RO due to an abort. There are lots of places that check for
the superblock error bit and will not write data, but we should not let
the filesystem appear read-write.
Signed-off-by: David Sterba <dsterba@suse.cz> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Btrfs: btrfs_ioctl_default_subvol: Revert back to toplevel subvolume when arg is 0
This patch makes it possible to set BTRFS_FS_TREE_OBJECTID as the default
subvolume by passing a subvolume id of 0.
Signed-off-by: chandan <chandan@linux.vnet.ibm.com> Reviewed-by: David Sterba <dsterba@suse.cz> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Btrfs: don't leak transaction in btrfs_sync_file()
In btrfs_sync_file(), if the call to btrfs_log_dentry_safe() returns
a negative error (for e.g. -ENOMEM via btrfs_log_inode()), we would
return without ending/freeing the transaction.
Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Stefan Behrens [Wed, 11 Sep 2013 07:59:22 +0000 (09:59 +0200)]
Btrfs: add the missing mutex unlock in write_all_supers()
The BUG() was replaced by btrfs_error() and return -EIO with the
patch "get rid of one BUG() in write_all_supers()", but the missing
mutex_unlock() was overlooked.
The 0-DAY kernel build service from Intel reported the missing
unlock which was found by the coccinelle tool:
fs/btrfs/disk-io.c:3422:2-8: preceding lock on line 3374
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Josef Bacik [Tue, 17 Sep 2013 14:55:51 +0000 (10:55 -0400)]
Btrfs: kill delay_iput arg to the wait_ordered functions
This is a left over of how we used to wait for ordered extents, which was to
grab the inode and then run filemap flush on it. However if we have an ordered
extent then we already are holding a ref on the inode, and we just use
btrfs_start_ordered_extent anyway, so there is no reason to have an extra ref on
the inode to start work on the ordered extent. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Josef Bacik [Tue, 17 Sep 2013 14:50:06 +0000 (10:50 -0400)]
Btrfs: fix worst case calculator for space usage
Forever ago I made the worst case calculator say that we could potentially split
into 3 blocks for every level on the way down, which isn't right. If we split
we're only going to get two new blocks, the one we originally cow'ed and the new
one we're going to split. Thanks,
Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
projects / karo-tx-linux.git / log