Jonathan Cameron [Mon, 5 Dec 2011 22:18:14 +0000 (22:18 +0000)]
staging:iio:buffer move setup ops from buffer instance to iio_dev
These callbacks should not be buffer instance specific.
Hence move them out of the buffer.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jonathan Cameron [Mon, 5 Dec 2011 22:18:13 +0000 (22:18 +0000)]
staging:iio: remove userspace access to bytes per datum.
There are no known reasons why userspace should want this value.
It can be established from the buffer description anyway.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jonathan Cameron [Mon, 5 Dec 2011 22:18:12 +0000 (22:18 +0000)]
staging:iio:buffer drop bpe field.
Has no remaining users.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jonathan Cameron [Mon, 5 Dec 2011 21:56:01 +0000 (21:56 +0000)]
staging:iio:adc:max1363 add datasheet_name entries.
Kind of obvious for this device but useful
for testing purposes.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jonathan Cameron [Mon, 5 Dec 2011 21:56:00 +0000 (21:56 +0000)]
staging:iio: core: add datasheet_name to chan_spec
This allows for matching against the name given
on a datasheet, however silly/inconsistent it might
be.
Useful for in kernel interfaces.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jonathan Cameron [Mon, 5 Dec 2011 21:37:16 +0000 (21:37 +0000)]
staging:iio:adc:max1363 correctly set channels as big endian.
Also, the differential channels should always have been signed.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jonathan Cameron [Mon, 5 Dec 2011 21:37:15 +0000 (21:37 +0000)]
staging:iio:adc:max1363 use new demuxing support.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jonathan Cameron [Mon, 5 Dec 2011 21:37:14 +0000 (21:37 +0000)]
staging:iio: add demux optionally to path from device to buffer
This gives you only what you ask for which is handy
for some devices with weird scan combinations.
Routes all data flow through a core utility function.
That and this demuxing support will be needed to do
demuxing to multiple destinations in kernel.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Tested-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jonathan Cameron [Mon, 5 Dec 2011 21:37:13 +0000 (21:37 +0000)]
staging:iio: make iio_sw_buffer_preenable much more general.
Also introduces active_scan_mask storage to tell the core what is
really being currently captured from the device (different from
what is desired as often has bonus channels).
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Tested-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jonathan Cameron [Mon, 5 Dec 2011 21:37:12 +0000 (21:37 +0000)]
staging:iio: add hook to allow core to perform scan related config.
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jonathan Cameron [Mon, 5 Dec 2011 21:37:11 +0000 (21:37 +0000)]
staging:iio:buffer add a cache of the timestamp scan index.
Basically avoids looking it up lots of times.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jonathan Cameron [Mon, 5 Dec 2011 21:37:10 +0000 (21:37 +0000)]
staging:iio:find iio channel from scan index util function
Useful for getting to the channel based on scan mask alone.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Lars-Peter Clausen [Mon, 5 Dec 2011 15:53:05 +0000 (16:53 +0100)]
staging:iio: Remove redundant spi driver bus initialization
In ancient times it was necessary to manually initialize the bus field of an
spi_driver to spi_bus_type. These days this is done in spi_register_driver() so
we can drop the manual assignment.
The patch was generated using the following coccinelle semantic patch:
// <smpl>
@@
identifier _driver;
@@
struct spi_driver _driver = {
.driver = {
- .bus = &spi_bus_type,
},
};
// </smpl>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Lars-Peter Clausen [Tue, 6 Dec 2011 09:07:02 +0000 (10:07 +0100)]
staging:iio:dac: Add AD5380 driver
This patch adds support for the Analog Devices D5380, AD5381,
AD5382, AD5383, AD5384, AD5390, AD5391, AD5392 multi-channel
Digital to Analog Converters.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Lars-Peter Clausen [Mon, 5 Dec 2011 16:05:41 +0000 (17:05 +0100)]
staging:iio:dac: Add AD5764 driver
This patch adds support for the Analog Devices AD5764, AD5764R, AD5744, AD5744R
quad channel analog-to-digital converter.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jonathan Cameron [Sun, 4 Dec 2011 20:44:36 +0000 (20:44 +0000)]
staging:iio:adc:max1363 actually make timestamp controllable
Previously timestamps were always on in this driver.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jonathan Cameron [Sun, 4 Dec 2011 19:10:59 +0000 (19:10 +0000)]
staging:iio:generic_buffer example - handle endian differences
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jonathan Cameron [Sun, 4 Dec 2011 19:10:58 +0000 (19:10 +0000)]
staging:iio:Documentation: cleanup properly in buffer handling code
Eating the endian description for now.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Bryan Freed [Fri, 2 Dec 2011 22:19:30 +0000 (14:19 -0800)]
iio: light sensor: Improve granularity of tsl2583 lux values.
When illuminance0_calibbias gets 4000 (for a 4x multiplier), we see lux
granularity of 4. Reversing the order of the right shift and multiplication
retains the precision of the unadjusted lux value.
Signed-off-by: Bryan Freed <bfreed@chromium.org>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Andreas Ruprecht [Fri, 2 Dec 2011 16:30:23 +0000 (17:30 +0100)]
Staging: iio/accel: Added a range check for val in store_measurement_mode()
In sca3000_store_measurement_mode() we use val to and it with a mask.
This mask is only two bits long (as we are only interested in the
lowest two bits), so a value bigger than 3 was silently ignored so
far.
Now this function will return -EINVAL, if val is bigger than 3.
Signed-off-by: Andreas Ruprecht <rupran@einserver.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Andreas Ruprecht [Fri, 2 Dec 2011 16:56:55 +0000 (17:56 +0100)]
Staging: iio/accel: Changed data type of mask in store_measurement_mode() to u8
In sca3000_store_measurement_mode() we parse a value from a string
buffer via kstrtou8, and store the parsed value into a u8 after
and-ing it with mask.
As we are only interested in the lowest two bits here and mask is
initialized with a fixed value 0x03, mask may as well be a u8.
Signed-off-by: Andreas Ruprecht <rupran@einserver.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Thu, 1 Dec 2011 18:38:42 +0000 (10:38 -0800)]
Staging: hv: update TODO file
Hank is no longer at Microsoft, so remove his email address as it
bounces.
Cc: KY Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Thu, 1 Dec 2011 18:37:09 +0000 (10:37 -0800)]
Staging: hv: remove hv_mouse driver as it's now in the hid directory
This removes the hv_mouse driver as it's now in Jiri's HID tree in the
"proper" place.
Cc: KY Srinivasan <kys@microsoft.com>
Cc: Jiri Kosina <jikos@jikos.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Martyn Welch [Thu, 1 Dec 2011 17:06:29 +0000 (17:06 +0000)]
Staging: VME: Remove typedefs
The use of typedefs is discouraged, remove them.
Signed-off-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
K. Y. Srinivasan [Thu, 1 Dec 2011 12:59:20 +0000 (04:59 -0800)]
Staging: hv: storvsc: Implement per device memory pools
The current code implemented a per-HBA memory pool mechanism. For IDE disks
managed by this driver, there is a one to one correspondance between the
block device and the associated virtual HBA and since currently only IDE devices
can be the boot device, this addressed the deadlock issues that were raised during
the review process. This patch implements a per-lun memory pool mechanism.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
K. Y. Srinivasan [Thu, 1 Dec 2011 12:59:19 +0000 (04:59 -0800)]
Staging: hv: storvsc: Fix a bug in copy_from_bounce_buffer()
Fix a bug in copy_from_bounce_buffer().
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
K. Y. Srinivasan [Thu, 1 Dec 2011 12:59:18 +0000 (04:59 -0800)]
Staging: hv: storvsc: Fix a bug in storvsc_command_completion()
Fix a bug in storvsc_command_completion() that leaks memory when scatter/gather
lists are used on the "write" side.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
K. Y. Srinivasan [Thu, 1 Dec 2011 12:59:17 +0000 (04:59 -0800)]
Staging: hv: storvsc: Cleanup storvsc_device_alloc()
The code in storvsc_device_alloc() is not needed as this would be
done by default. Get rid of it. We still keep the function as we use
this hook to allocate per-LUN memory pools in a later patch.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
K. Y. Srinivasan [Thu, 1 Dec 2011 12:59:16 +0000 (04:59 -0800)]
Staging: hv: storvsc: Disable clustering
Disable clustering, since the host side on Hyper-V requires that
each I/O element not exceed the page size. As part of this
cleanup, get rid of the function to merge bvecs, as the primary
reason for this function was to avoid having an element exceed
the page size.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Haiyang Zhang [Wed, 30 Nov 2011 15:19:08 +0000 (07:19 -0800)]
net/hyperv: Add support for promiscuous mode setting
Add code to accept promiscuous mode setting, and pass it to
RNDIS filter.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Haiyang Zhang [Wed, 30 Nov 2011 15:19:07 +0000 (07:19 -0800)]
net/hyperv: Fix long lines in netvsc.c
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dan Carpenter [Wed, 30 Nov 2011 08:43:41 +0000 (11:43 +0300)]
Staging: line6: NULL dereference in dev_err()
"line6" hasn't been set at this point and we should be using
&interface->dev instead.
Gcc would have complained about this if it weren't for the fact that we
initialized line6 to NULL. I removed the initialization.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
K. Y. Srinivasan [Wed, 30 Nov 2011 16:52:23 +0000 (08:52 -0800)]
Staging: hv: mousevsc: Properly add the hid device
We need to properly add the hid device to correctly initialize the
sysfs state. While this patch is against the staging tree; Jiri,
please pick up this patch as you merge the Hyper-V mouse driver.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reported-by: Fuzhou Chen <fuzhouch@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Thu, 1 Dec 2011 14:31:18 +0000 (09:31 -0500)]
staging: lttng: cleanup one-bit signed bitfields
* Dan Carpenter <dan.carpenter@oracle.com> wrote:
> Sparse complains that these signed bitfields look "dubious". The
> problem is that instead of being either 0 or 1 like people would expect,
> signed one bit variables like this are either 0 or -1. It doesn't cause
> a problem in this case but it's ugly so lets fix them.
* walter harms (wharms@bfs.de) wrote:
> hi,
> This patch looks ok to me but this design is ugly by itself.
> It should be replaced by an uchar uint whatever or use a
> real bool (obviously not preferred by this programmes).
bool :1, uchar :1 or uint :1 could make sense. uchar:1/bool:1 won't save
any space here, because the surrounding fields are either uint or
pointers, so alignment will just add padding.
I try to use int/uint whenever possible because x86 CPUs tend to get
less register false-dependencies when using instructions modifying the
whole register (generated by using int/uint types) rather than only part
of it (uchar/char/bool). I only use char/uchar/bool when there is a
clear wanted space gain.
The reason why I never use the bool type within a structure when I want
a compact representation is that bool takes a whole byte just to
represent one bit:
struct usebitfield {
int a;
unsigned int f:1, g:1, h:1, i:1, j:1;
int b;
};
struct usebool {
int a;
bool f, g, h, i, j;
int b;
};
struct useboolbf {
int a;
bool f:1, g:1, h:1, i:1, j:1;
int b;
};
int main()
{
printf("bitfield %d bytes, bool %d bytes, boolbitfield %d bytes\n",
sizeof(struct usebitfield), sizeof(struct usebool),
sizeof(struct useboolbf));
}
result:
bitfield 12 bytes, bool 16 bytes, boolbitfield 12 bytes
This is because each bool takes one byte, while the bitfields are put in
units of "unsigned int" (or bool for the 3rd struct). So in this
example, we need 5 bytes + 3 bytes alignment for the bool, but only 4
bytes to hold the "unsigned int" unit for the bitfields.
The choice between bool and bitfields must also take into account the
frequency of access to the variable, because bitfields require mask
operations to access the selected bit(s). You will notice that none of
these bitfields are accessed on the tracing fast-path: only in
slow-paths. Therefore, space gain is more important than speed here.
One might argue that I have so few of these fields here that it does not
make an actual difference to go for bitfield or bool. I am just trying
to choose types best suited for their intended purpose, ensuring they
are future-proof and will allow simply adding more fields using the same
type, as needed.
So I guess I'll go for uint :1.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Wed, 30 Nov 2011 18:34:18 +0000 (13:34 -0500)]
lttng wrapper: add missing include to kallsyms wrapper
Needed to keep bissectability.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Wed, 30 Nov 2011 18:34:16 +0000 (13:34 -0500)]
lttng lib: ring buffer move null pointer check to open
* Dan Carpenter <dan.carpenter@oracle.com> wrote:
> The patch
c844b2f5cfea: "lttng lib: ring buffer" from Nov 28, 2011,
> leads to the following Smatch complaint:
>
> drivers/staging/lttng/lib/ringbuffer/ring_buffer_mmap.c +86
> +lib_ring_buffer_mmap_buf()
> warn: variable dereferenced before check 'buf' (see line 79)
>
> drivers/staging/lttng/lib/ringbuffer/ring_buffer_mmap.c
> 78 unsigned long length = vma->vm_end - vma->vm_start;
> 79 struct channel *chan = buf->backend.chan;
> ^^^^^^^^^^^^^^^^^
> Dereference.
>
> 80 const struct lib_ring_buffer_config *config = chan->backend.config;
> 81 unsigned long mmap_buf_len;
> 82
> 83 if (config->output != RING_BUFFER_MMAP)
> 84 return -EINVAL;
> 85
> 86 if (!buf)
> ^^^^
> Check.
>
> 87 return -EBADF;
> 88
Let's move the NULL buf check to the file "open", where it belongs. The
"open" file operation is the actual interface between lib ring buffer
and the modules using it.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Wed, 30 Nov 2011 18:34:15 +0000 (13:34 -0500)]
lttng lib: ring buffer remove duplicate null pointer
* Dan Carpenter <dan.carpenter@oracle.com> wrote:
> The patch
c844b2f5cfea: "lttng lib: ring buffer" from Nov 28, 2011,
> leads to the following Smatch complaint:
>
> drivers/staging/lttng/lib/ringbuffer/ring_buffer_mmap.c +33
> +lib_ring_buffer_fault()
> warn: variable dereferenced before check 'buf' (see line 26)
>
> drivers/staging/lttng/lib/ringbuffer/ring_buffer_mmap.c
> 25 struct lib_ring_buffer *buf = vma->vm_private_data;
> 26 struct channel *chan = buf->backend.chan;
> ^^^^^^^^^^^^^^^^^
> Dereference.
>
> 27 const struct lib_ring_buffer_config *config = chan->backend.config;
> 28 pgoff_t pgoff = vmf->pgoff;
> 29 struct page **page;
> 30 void **virt;
> 31 unsigned long offset, sb_bindex;
> 32
> 33 if (!buf)
> ^^^^
> Check.
>
> 34 return VM_FAULT_OOM;
> 35
This check is performed at mapping setup time in
lib_ring_buffer_mmap_buf() already, so we can safely remove this
duplicata.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Wed, 30 Nov 2011 18:34:14 +0000 (13:34 -0500)]
lttng lib: ring buffer: remove stale null-pointer
* Dan Carpenter <dan.carpenter@oracle.com> wrote:
[...]
> The patch
c844b2f5cfea: "lttng lib: ring buffer" from Nov 28, 2011,
> leads to the following Smatch complaint:
>
> drivers/staging/lttng/lib/ringbuffer/ring_buffer_frontend.c +1150
> +lib_ring_buffer_print_buffer_errors()
> warn: variable dereferenced before check 'chan' (see line 1143)
>
> drivers/staging/lttng/lib/ringbuffer/ring_buffer_frontend.c
> 1142 {
> 1143 const struct lib_ring_buffer_config *config =
> +chan->backend.config;
>
> +^^^^^^^^^^^^^^^^^^^^
> Dereference.
>
> 1144 unsigned long write_offset, cons_offset;
> 1145
> 1146 /*
> 1147 * Can be called in the error path of allocation when
> 1148 * trans_channel_data is not yet set.
> 1149 */
> 1150 if (!chan)
> ^^^^^^^^^
> Check. At first glance the comment seems out of date, I think check can
> be removed safely.
>
> 1151 return;
> 1152 /*
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sean MacLennan [Wed, 30 Nov 2011 20:18:52 +0000 (15:18 -0500)]
rtl8192e: Rename clashing symbols
The "rtl8192e: Export symbols" patch exported three functions already
exported by the rtl8192u driver. This patch renames the three functions:
Dot11d_Init => dot11d_init
HTUpdateSelfAndPeerSetting => HT_update_self_and_peer_setting
IsLegalChannel => rtllib_legal_channel
Signed-off-by: Sean MacLennan <seanm@seanm.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Colin Cross [Tue, 25 Oct 2011 21:31:58 +0000 (14:31 -0700)]
staging: android: ram_console: pass in a boot info string
Allow the board file to pass a boot info string through the
platform data that is appended to the /proc/last_kmsg file.
[moved the .h file to drivers/staging/android/ to be self-contained - gregkh]
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
JP Abgrall [Fri, 12 Aug 2011 04:33:35 +0000 (21:33 -0700)]
android: logger: bump up the logger buffer sizes
(port from common android-2.6.39
commit:
11430f16545205c614dd5bd58e4a7ee630fc0f9f)
events: (no change, 256)
main: 64 -> 256
radio: 64 -> 256
system: 64 -> 256
Signed-off-by: JP Abgrall <jpa@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Colin Cross [Wed, 22 Jun 2011 23:05:47 +0000 (16:05 -0700)]
android: lowmemorykiller: Fix arguments to lowmem_shrink
The arguments to shrink functions have changed, update
lowmem_shrink to match.
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Arve Hjønnevåg [Wed, 24 Nov 2010 01:29:04 +0000 (17:29 -0800)]
staging: android: lowmemorykiller: Ignore shmem pages in page-cache
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Colin Cross [Sun, 22 Aug 2010 00:25:42 +0000 (17:25 -0700)]
staging: android: lowmemorykiller: Update arguments of shrinker for 2.6.35
Signed-off-by: Colin Cross <ccross@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
San Mehat [Thu, 6 May 2010 22:43:46 +0000 (15:43 -0700)]
staging: android: lowmemorykiller: Remove bitrotted codepath
Now that we're murder-synchronous, this code path will never be
called (and if it does, it doesn't tell us anything useful other
than we killed a task that was already being killed by somebody
else but hadn't gotten its' signal yet)
Signed-off-by: San Mehat <san@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Christopher Lais [Sat, 1 May 2010 20:51:48 +0000 (15:51 -0500)]
staging: binder: Fix memory corruption via page aliasing
binder_deferred_release was not unmapping the page from the buffer
before freeing it, causing memory corruption. This only happened
when page(s) had not been freed by binder_update_page_range, which
properly unmaps the pages.
This only happens on architectures with VIPT aliasing.
To reproduce, create a program which opens, mmaps, munmaps, then closes
the binder very quickly. This should leave a page allocated when the
binder is released. When binder_deferrred_release is called on the
close, the page will remain mapped to the address in the linear
proc->buffer. Later, we may map the same physical page to a different
virtual address that has different coloring, and this may cause
aliasing to occur.
PAGE_POISONING will greatly increase your chances of noticing any
problems.
Signed-off-by: Christopher Lais <chris+android@zenthought.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
San Mehat [Wed, 5 May 2010 18:38:42 +0000 (11:38 -0700)]
staging: android: lowmemkiller: Substantially reduce overhead during reclaim
This patch optimizes lowmemkiller to not do any work when it has an outstanding
kill-request. This greatly reduces the pressure on the task_list lock
(improving interactivity), as well as improving the vmscan performance
when under heavy memory pressure (by up to 20x in tests).
Note: For this enhancement to work, you need CONFIG_PROFILING
Signed-off-by: San Mehat <san@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
San Mehat [Mon, 26 Apr 2010 22:11:04 +0000 (15:11 -0700)]
staging: android: lowmemorykiller: Don't try to kill the same pid over and over
Under certain circumstances, a process can take awhile to
handle a sig-kill (especially if it's in a scheduler group with
a very low share ratio). When this occurs, lowmemkiller returns
to vmscan indicating the process memory has been freed - even
though the process is still waiting to die. Since the memory
hasn't actually freed, lowmemkiller is called again shortly after,
and picks the same process to die; regardless of the fact that
it has already been 'scheduled' to die and the memory has already
been reported to vmscan as having been freed.
Solution is to check fatal_signal_pending() on the selected
task, and if it's already pending destruction return; indicating
to vmscan that no resources were freed on this pass.
Signed-off-by: San Mehat <san@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Arve Hjønnevåg [Thu, 22 Apr 2010 22:53:23 +0000 (15:53 -0700)]
Staging: android: binder: Create dedicated workqueue for binder deferred work
Some drivers flush the global workqueue when closed. This would deadlock if
the last reference to the file was released from the binder.
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mike Lockwood [Sat, 17 Apr 2010 16:01:35 +0000 (12:01 -0400)]
Staging: android: timed_gpio: Properly discard invalid timeout values.
The timed output device never previously checked the return value of sscanf,
resulting in an uninitialized int being passed to enable() if input value
was invalid.
Signed-off-by: Mike Lockwood <lockwood@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Arve Hjønnevåg [Wed, 29 Apr 2009 03:57:50 +0000 (20:57 -0700)]
staging: android: binder: Move debugging information from procfs to debugfs
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Arve Hjønnevåg [Wed, 29 Apr 2009 03:57:50 +0000 (20:57 -0700)]
binder: Use seq_file for debug interface.
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
San Mehat [Wed, 24 Feb 2010 00:09:47 +0000 (16:09 -0800)]
android: logger: Add new system log for framework/system log messages
Signed-off-by: San Mehat <san@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Arve Hjønnevåg [Thu, 7 Jan 2010 01:17:33 +0000 (17:17 -0800)]
Staging: android: timed_gpio: Request gpios.
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Arve Hjønnevåg [Fri, 18 Dec 2009 07:42:08 +0000 (23:42 -0800)]
Staging: android: ram_console: Start ram console earlier
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
San Mehat [Thu, 17 Sep 2009 21:27:41 +0000 (14:27 -0700)]
staging: android: ramconsole: Ensure ramconsole does not get cluttered by apanic threads
[Note, this is part of a patch from Sam, just the drivers/staging/
portion, that adds a function that the apanic code calls, but the apanic
code isn't here, so just include part of this to make merges and diffs
easier and this keeps things self-contained - gregkh]
Signed-off-by: San Mehat <san@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Wed, 30 Nov 2011 11:33:10 +0000 (20:33 +0900)]
Staging: android: add the code back to the build
It builds, so ship it!
Cc: Arve Hjønnevåg <arve@android.com>
Cc: Brian Swetland <swetland@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Wed, 30 Nov 2011 11:32:24 +0000 (20:32 +0900)]
Revert "Staging: android: mark subsystem as broken"
This reverts commit
2cdf99ce2b9418c9d7c5f907195cfac421375520.
It now builds, so this can be reverted.
Cc: Arve Hjønnevåg <arve@android.com>
Cc: Brian Swetland <swetland@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Colin Cross [Thu, 15 Apr 2010 22:21:51 +0000 (15:21 -0700)]
android-common: Fix slab.h includes for 2.6.34-rc4
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Arve Hjønnevåg [Wed, 21 Apr 2010 05:33:05 +0000 (22:33 -0700)]
android-common: include linux/slab.h
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Corentin Chary [Sat, 28 Nov 2009 08:45:14 +0000 (09:45 +0100)]
staging/android: fix build issues
Signed-off-by: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman [Wed, 30 Nov 2011 11:18:14 +0000 (20:18 +0900)]
Revert "Staging: android: delete android drivers"
This reverts commit
b0a0ccfad85b3657fe999805df65f5cfe634ab8a.
Turns out I was wrong, we want these in the tree.
Note, I've disabled the drivers from the build at the moment, so other
patches can be applied to fix some build issues due to internal api
changes since the code was removed from the tree.
Cc: Arve Hjønnevåg <arve@android.com>
Cc: Brian Swetland <swetland@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sean MacLennan [Tue, 29 Nov 2011 01:22:26 +0000 (20:22 -0500)]
rtl8192e: Split into two directories
Now that the rtl8192e driver is split up, it makes sense to keep the
rtllib code in one directory and the rtl8192e specific code in
another. This patch contains the split and the fixup of includes.
Since rtl_core.h already included rtllib.h and dot11d.h, rtl_core.h
was updated to point to the parent directory. All other references to
rtllib.h and dot11d.h in the rtl8192e specific code where deleted
rather than fixed. This leaves just one file that needs to know the
real location of the rtllib includes.
Signed-off-by: Sean MacLennan <seanm@seanm.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sean MacLennan [Tue, 29 Nov 2011 01:21:27 +0000 (20:21 -0500)]
rtl8192e: Split the driver up
This patch splits the current r8192e_pci driver up into six different
drivers: rtllib, rtllib_crypt, rtllib_crypt_ccmp, rtllib_crypt_tkip,
rtllib_crypt_wep, and r8192e_pci.
Now that they are proper modules, the init and exit functions do not
need to be called directly. Also, the rtllib_*_null functions are not
needed since they will be loaded on demand.
Signed-off-by: Sean MacLennan <seanm@seanm.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sean MacLennan [Tue, 29 Nov 2011 01:20:26 +0000 (20:20 -0500)]
rtl8192e: Export symbols
The rtl8192e driver had a natural split between the more generic
rtllib code and the more specific rtl8192e code. This patch exports
all the symbols needed by the r8192 specific code from the rtllib
generic code.
Signed-off-by: Sean MacLennan <seanm@seanm.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sean MacLennan [Tue, 29 Nov 2011 01:19:33 +0000 (20:19 -0500)]
rtl8192e: create generic rtllib_debug.h
Rename rtl_debug.h to rtllib_debug.h. Source files should include
rtllib.h if they are generic and rtl_core.h if they are r8192e
specific. Files should never include both.
Signed-off-by: Sean MacLennan <seanm@seanm.ca>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sean MacLennan [Tue, 29 Nov 2011 01:18:18 +0000 (20:18 -0500)]
rtl8192e: move RTL_DEBUG and proc prototypes
The RTL_DEBUG enum is used for rt_global_debug_component global
variable and RT_TRACE. It should be in rtl_debug.h and not rtl_core.h.
The rtl8192_proc_* functions are r8192 specific and should not be in
rtl_debug.h. Move them to rtl_core.h.
Signed-off-by: Sean MacLennan <seanm@seanm.ca>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sean MacLennan [Tue, 29 Nov 2011 01:17:10 +0000 (20:17 -0500)]
rtl8192e: cleanup rtl_debug.h
This patch cleans up rtl_debug.h by removing all the unused defines and
stub functions.
The changes to rtl_core.c are just to remove the deleted stub function
calls.
The changes to rtl_debug.c are functions that are never called.
Signed-off-by: Sean MacLennan <seanm@seanm.ca>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Andreas Ruprecht [Mon, 28 Nov 2011 15:59:13 +0000 (16:59 +0100)]
Staging: iio/accel: Changed return type of lis3l02dq_read_event_config() to int
The lis3l02dq_read_event_config() function returned an ssize_t up to
now, which lead to a compiler warning in line 660 (initialization from
incompatible pointer type). The iio_info struct is defined to accept an
int-returning function as the read_event_config parameter.
Also it seems odd to have the check for (ret < 0) and return ret in
this case, when the return type is signed.
Signed-off-by: Andreas Ruprecht <rupran@einserver.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Martyn Welch [Tue, 29 Nov 2011 13:28:05 +0000 (13:28 +0000)]
Staging: VME: PIO2: Correct irq reset
The loop used to reset the interrupt masks has faulty logic. There are 4
banks of 8 I/O, however each mask is comprised of 2 bits and thus there are
8 sets of registers to clear. Driver was wrongly equating this with 8 banks
leading to a us writing past the end of the "bank" array (used to store mask
configuration as these registers are write only) and thus causing memory
corruption. Clear both registers of masks for each bank and half iterations.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Andreas Ruprecht [Tue, 29 Nov 2011 10:43:28 +0000 (11:43 +0100)]
Staging: iio/adc: strict_strtoul was used with a long type variable
The function ad7280_store_balance_timer() parses data from a char*
buffer into a long variable, but uses the the function strict_strtoul
which expects a pointer to an unsigned long variable as its third
parameter.
As Dan Carpenter mentioned, the values are capped a few lines later,
but a check if val is negative is missing.
Now this function will return -ERANGE if there is a representation of
a negative number in buf.
Additionally the checkpatch.pl considers strict_strtoul as obsolete.
I replaced its call with the suggested kstrtoul.
Signed-off-by: Andreas Ruprecht <rupran@einserver.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Thomas Meyer [Tue, 29 Nov 2011 21:08:00 +0000 (22:08 +0100)]
staging: iio: Use kcalloc instead of kzalloc to allocate array
The advantage of kcalloc is, that will prevent integer overflows which could
result from the multiplication of number of elements and size and it is also
a bit nicer to read.
The semantic patch that makes this change is available
in https://lkml.org/lkml/2011/11/25/107
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Xi Wang [Wed, 30 Nov 2011 02:53:46 +0000 (21:53 -0500)]
staging: vt6656: integer overflows in private_ioctl()
There are two potential integer overflows in private_ioctl() if
userspace passes in a large sList.uItem / sNodeList.uItem. The
subsequent call to kmalloc() would allocate a small buffer, leading
to a memory corruption.
Reported-by: Dan Rosenberg <drosenberg@vsecurity.com>
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Xi Wang [Wed, 30 Nov 2011 02:52:46 +0000 (21:52 -0500)]
staging: vt6655: integer overflows in private_ioctl()
There are two potential integer overflows in private_ioctl() if
userspace passes in a large sList.uItem / sNodeList.uItem. The
subsequent call to kmalloc() would allocate a small buffer, leading
to a memory corruption.
Reported-by: Dan Rosenberg <drosenberg@vsecurity.com>
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Marcos Paulo de Souza [Wed, 30 Nov 2011 02:19:44 +0000 (00:19 -0200)]
staging: vt6656: card.c: Change return of CARDbAddBasicRate to void
In all locations that call this function ignore your returna, so remove
it.
Signed-off-by: Marcos Paulo de Souza <marcos.mage@gmail.com>
Cc: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Marcos Paulo de Souza [Wed, 30 Nov 2011 02:19:25 +0000 (00:19 -0200)]
staging: vt6656: baseband.c: Remove commented code
This patch removes a lot of commented code, and some return calls of
void functions.
Signed-off-by: Marcos Paulo de Souza <marcos.mage@gmail.com>
Cc: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Marcos Paulo de Souza [Wed, 30 Nov 2011 02:19:08 +0000 (00:19 -0200)]
staging: vt6656: baseband.c: Removed dead code, and fix coding standards
Remved some commented code, and fixed some style issues. was removed too
a redundant if statement.
Signed-off-by: Marcos Paulo de Souza <marcos.mage@gmail.com>
Cc: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Marcos Paulo de Souza [Wed, 30 Nov 2011 02:18:07 +0000 (00:18 -0200)]
staging: vt6656: 80211mgr.c: Code cleanup, removed return of void funcs.
Removed return call of void functions. Removed some code style issues.
Signed-off-by: Marcos Paulo de Souza <marcos.mage@gmail.com>
Cc: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Marcos Paulo de Souza [Wed, 30 Nov 2011 02:17:15 +0000 (00:17 -0200)]
staging: vt6656: main_usb.c: Use kzalloc instead kmalloc
Signed-off-by: Marcos Paulo de Souza <marcos.mage@gmail.com>
Cc: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Marcos Paulo de Souza [Mon, 28 Nov 2011 19:16:37 +0000 (19:16 +0000)]
staging:vt6656: iwctl.c: Removed unneeded function
Removed the function iwctl_giwnwid, that just return a error code.
Changes v1 to v2:
Removed same functions of vt6655 and vt6656.
Signed-off-by: Marcos Paulo de Souza <marcos.mage@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Haiyang Zhang [Mon, 28 Nov 2011 21:35:35 +0000 (13:35 -0800)]
staging: hv: move hv_netvsc out of staging area
hv_netvsc has been reviewed on netdev mailing list on 6/09/2011.
All recommended changes have been made. We are requesting to move
it out of staging area.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: KY Srinivasan <kys@microsoft.com>
Signed-off-by: Mike Sterling <Mike.Sterling@microsoft.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Andreas Ruprecht [Sun, 27 Nov 2011 22:17:42 +0000 (23:17 +0100)]
Staging: iio/accel: Changed data type of val in store_measurement_mode to u8
The code in sca3000_store_measurement_mode() uses the variable val to
do bitwise operations with an int mask and or-s it into st->rx[0] which
is an entry in a u8 array (see sca3000.h).
This means up to now values larger than a u8 were silently ignored and
just the lower 8 bits counted into the value that was written into
st->rx[0]. This code will return -ERANGE if the value in buf was too
large to fit into a u8.
Signed-off-by: Andreas Ruprecht <rupran@einserver.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Andreas Ruprecht [Sun, 27 Nov 2011 22:17:41 +0000 (23:17 +0100)]
Staging: iio/accel: Changed data type for val to unsigned long in write_frequency
In lis3102dq_write_frequency() we used a long variable to store the
value parsed from the char* buffer buf, as there only was a
strict_strtol() function to parse values.
Now we have got kstrto* which allows us to convert to the right data
type in most cases.
In this particular function we want to write a frequency value, and it
doesn't make sense to allow negative values here (as Dan Carpenter
pointed out in a previous email).
This means we can now parse the value into an unsigned long and get an
error for invalid (e.g. negative) values.
Signed-off-by: Andreas Ruprecht <rupran@einserver.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Andreas Ruprecht [Sun, 27 Nov 2011 22:17:40 +0000 (23:17 +0100)]
Staging: iio/accel: Changed data type in adis16220_write_16bit to u16
In the adis16220_write_16bit() function we used a long value to store
parsed data from the char* buffer buf.
The called function to actually write the data,
adis16220_spi_write_reg_16(), takes a u16 value as a parameter, so up
to now a value larger than u16 was silently ignored as it was only
truncated when passing the parameter.
Now this function will only accept values fitting into a u16.
Additionally the parsing function was changed to overcome the now
obsolete strict_strtol() function.
Signed-off-by: Andreas Ruprecht <rupran@einserver.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kevin McKinney [Mon, 28 Nov 2011 01:51:47 +0000 (20:51 -0500)]
Staging: bcm: Reverse semaphore locking in IOCTL_BCM_BUFFER_DOWNLOAD_STOP.
This patch reorders the semaphore locking.
It makes better sense to first evaluate
fw_download_sema semaphore then
NVMRdmWrmLocl semaphore. The
fw_download_sema is suppose to be
acquired in the START ioctl. If this is
not true, then it does not make sense
to continue.
Signed-off-by: Kevin McKinney <klmckinney1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kevin McKinney [Mon, 28 Nov 2011 01:51:46 +0000 (20:51 -0500)]
Staging: bcm: Alter code to move error handling closer to the calls.
This is a cleanup patch. I've shuffled the code around to
move the error handling closer to the calls. I've removed
some indent levels. I've replaced break statements with
direct returns.
Signed-off-by: Kevin McKinney <klmckinney1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Kevin McKinney [Mon, 28 Nov 2011 01:51:45 +0000 (20:51 -0500)]
Staging: bcm: Clean up patch that calls semaphore down_trylock directly.
This patch evaluates/calls the down_trylock locking
function directly, instead of storing the results
in a variable and evaluating the variable. These
changes were made in:
IOCTL_BCM_BUFFER_DOWNLOAD_STOP and
IOCTL_BCM_BUFFER_DOWNLOAD_START.
Signed-off-by: Kevin McKinney <klmckinney1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Mon, 28 Nov 2011 12:42:27 +0000 (07:42 -0500)]
staging: Add LTTng entry to MAINTAINERS file
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Mon, 28 Nov 2011 12:42:26 +0000 (07:42 -0500)]
staging: add LTTng to build
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Mon, 28 Nov 2011 12:42:25 +0000 (07:42 -0500)]
lttng: toplevel Makefile and Kconfig
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Mon, 28 Nov 2011 12:42:24 +0000 (07:42 -0500)]
lttng: probe callbacks
Implement the LTTng probe callbacks. One notable file here is
lttng-events.h, which is the core implementation of the LTTng
TRACE_EVENT macros for generation of probes and tracepoint decription
from the TRACE_EVENT declarations.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Mon, 28 Nov 2011 12:42:23 +0000 (07:42 -0500)]
lttng: add system call instrumentation probe
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Mon, 28 Nov 2011 12:42:22 +0000 (07:42 -0500)]
lttng: Add documentation and TODO files
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Mon, 28 Nov 2011 12:42:21 +0000 (07:42 -0500)]
lttng: debugfs and procfs ABI
Add the "lttng" virtual file to debugfs and procfs. All operations are
performed through ioctls (LTTng ioctl range is already reserved
upstream) on this virtual file and on anonymous file descriptors
returned by these ioctls. Each file descriptor is associated with a
tracer "object" (session, channel, stream, event, context).
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Mon, 28 Nov 2011 12:42:20 +0000 (07:42 -0500)]
lttng: timing calibration feature
This calibration feature is fairly limited for now, but provides an
example of how this can be performed.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Mon, 28 Nov 2011 12:42:19 +0000 (07:42 -0500)]
lttng: dynamically selectable context information
Events can be augmented with context information. This is dynamically
configurable from the command line.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Mon, 28 Nov 2011 12:42:18 +0000 (07:42 -0500)]
lttng: tracer control and core structures
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Mon, 28 Nov 2011 12:42:17 +0000 (07:42 -0500)]
lttng: lib ring buffer clients
Each lttng buffer configuration (discard mode, overwrite mode, mmap
support, splice support, per-cpu buffers, global buffer for metadata) is
a lib ring buffer client.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Mon, 28 Nov 2011 12:42:16 +0000 (07:42 -0500)]
lttng: syscall instrumentation
x86-32 and x86-64 system call instrumentation, along with the
lttng-syscalls-generate-headers.sh script that generates the headers
from the system call list. See README for details.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mathieu Desnoyers [Mon, 28 Nov 2011 12:42:15 +0000 (07:42 -0500)]
lttng instrumentation: tracepoint events
Modifications to the in-kernel TRACE_EVENT are needed to generate the
compact event descriptions and the probe code LTTng generates. These
changes could apply to upstream TRACE_EVENT, but requires changing the
in-kernel API.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>