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alloc failures already get standardized OOM
messages and a dump_stack.
For the affected mallocs around these OOM messages:
Converted kzallocs with multiplies to kcalloc.
Converted kmallocs with multiplies to kmalloc_array.
Converted a kmalloc/strlen/strncpy to kstrdup.
Moved a spin_lock below a removed OOM message and
removed a now unnecessary spin_unlock.
Neatened alignment and whitespace.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Previous versions of the line6 driver snooped MIDI traffic in order to
make device state accessible via sysfs attributes. This involved a lot
of logic in line6_variax_process_message() that has since been removed.
Drop unused conditionals in line6_variax_process_message().
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Previous versions of the line6 driver snooped MIDI traffic in order to
make device state accessible via sysfs attributes. This involved a lot
of logic in line6_pod_process_message() that has since been removed.
Drop unused conditionals in line6_pod_process_message() and reduce the
levels of indentation. Only two MIDI messages are still tracked: the
POD version message on startup and monitor level changes originating
from the device.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The CONFIG_LINE6_USB_DUMP_PCM config option prints a hexdump of PCM
audio data as URBs are sent and received. The usbmon feature should be
used instead of manually dumping PCM URBs. There are a few advantages
to using usbmon:
* Can be turned on/off at runtime
* Provides full USB-level traffic
* tcpdump and wireshark support for powerful analysis
* No driver-specific code is required
This is the last user of line6_write_hexdump() so we drop it too.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix checkpatch.pl warnings related to MidiBuffer:
WARNING: Avoid CamelCase: <MidiBuffer>
#947: FILE: staging/line6/driver.c:363:
+ struct MidiBuffer *mb = &line6->line6midi->midibuf_in;
Rename MidiBuffer to midi_buffer.
Note that "midibuf" would be another good name but sound/oss/midibuf.c
already uses it for a different concept. Avoid possible confusion by
using "midi_buffer" instead.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix the following checkpatch.pl warning:
WARNING: Prefer netdev_err(netdev, ... then dev_err(dev, ... then pr_err(... to printk(KERN_ERR ...
#1861: FILE: staging/line6/driver.h:56:
+ printk(KERN_ERR "line6usb driver bug: missing case in %s:%d\n", \
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix the following checkpatch.pl warning:
WARNING: line over 80 characters
#1107: FILE: staging/line6/driver.c:523:
+ /* Wait for data length. We'll get a couple of 0xff until length arrives. */
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fix the following checkpatch.pl warning:
WARNING: Avoid CamelCase: <ToneportSourceInfo>
#5383: FILE: staging/line6/toneport.c:90:
+struct ToneportSourceInfo {
Since the struct is only used to define the global
toneport_source_info[] table, I have chosen to make the struct
anonymous and part of the table definition.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
line6_send_sysex_message_async() isn't called from anywhere.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@gmail.com>
Reviewed-by: Johannes Thumshirn <morbidrsa@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
staging: line6: driver.c
The semantic patch that makes this output is available
in scripts/coccinelle/api/memdup.cocci.
Signed-off-by: Laurent Navet <laurent.navet@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fix those checkpatch issues
drivers/staging/line6/pcm.c:84:
WARNING: simple_strtoul is obsolete, use kstrtoul instead
call to obsolete simple_strtoul() replaced by kstrtoint()
drivers/staging/line6/pcm.c:423:
ERROR: switch and case should be at the same indent
realigns comments
Signed-off-by: Laurent Navet <laurent.navet@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The line6 drive no longer requests MIDI dumps from the device so
dumprequest.c is not needed.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The pod startup procedure dumps model data. This is no longer useful
since the sysfs attrs which expose this information to userspace have
been removed. The dump request wasn't been processed anymore.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The variax startup procedure dumps model data. This is no longer useful
since the sysfs attrs which expose this information to userspace have
been removed. The dump request wasn't been processed anymore.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The sysfs attrs to access the model dump have been removed so it's safe
to drop the model_data field. The next step will be to simplify the
startup process since we no longer need to fetch this data via dump
requests, but that will be done in a later patch.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The driver no longer keeps state of MIDI-accessible device parameters.
Drop the buffers but be careful to keep the device startup procedure
working even though we no longer store the contents of the dump request.
The startup procedure will be simplified in a later patch.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Both pod.c and variax.c expose the device's MIDI parameters as sysfs
attrs. Knowledge of MIDI constants should be in userspace, not in the
driver. Drop the sysfs attrs and let userspace interpret parameters it
cares about instead.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Since the driver no longer needs to keep state of device parameters it
is no longer necessary to refresh state when messages that affect other
parameters are sent. Drop the code to trigger a dump when amp/effects
are changed.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now that both pod.c and variax.c have removed their raw sysfs attrs, the
CONFIG_LINE6_USB_RAW config option can be dropped. The drivers are
being stripped down to just PCM and MIDI I/O so there is less state and
filtering. Therefore it's no longer necessary to have a special sysfs
attr to bypass the filtering ("raw").
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Note that VARIAX_SYSEX_ACTIVATE was never used so drop it along with the
other VARIAX_SYSEX_* constants which are now unused.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The get_string() function has no other callers so remove it too.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The get_string() function is no longer used so drop it too.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The pod_set_system_param_int() helper function is only used to set the
monitor level. Previously it was also used to control the tuner and has
special checks. These checks can now be dropped, along with the tuner
constants.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The raw sysfs attr transmits MIDI messages with less filtering. This
was a useful debugging tool while the staging driver still had a lot of
state and filtering. It is not useful anymore since the filtering is
being dropped.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It is no longer necessary to trigger on MIDI transmit messages that will
change the state of the device since:
1. We've dropped the midi_postprocess sysfs attr in a previous commit so
it is not possible to activate this feature anymore.
2. The other sysfs attrs that could inspect the state after a dump
request have been dropped.
Therefore we can safely remove this dead code.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The midi_mask_transmit sysfs attribute selects the MIDI channels on
which to transmit messages. If ALSA wants to transmit a message that
does not match an allowed channel, the message will be dropped. This
driver feature is not really used and applications don't know how to
take advantage of it. Therefore we drop it and rely on applications or
MIDI sequencers to select the channels used for communication.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The midi_mask_receive sysfs attribute selects the MIDI channels on which
to receive messages. There is no need to do this at the driver level,
instead the MIDI application endpoints decide which channels to use.
Other drivers don't implement midi_mask_receive so applications cannot
make use of this feature. Therefore we drop it as part of the effort to
clean up the staging driver.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dropping this final tuner sysfs attr also leaves the
POD_GET_SYSTEM_PARAM() macro, pod_get_system_param_string(), and
pod_get_system_param_int() unused. Remove them immediately to avoid
compiler warnings.
POD_monitor_level is now the only SYSEX value that needs to be watched
by the driver since the ALSA volume control should reflect the current
monitor volume level used by the device. Therefore, drop the switch
statement entirely and just check for POD_monitor_level, ignoring
unknown system parameter changes.
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
