staging: comedi: das1800: clarify the analog input cmd triggers

Clarify the documentation in the comedi driver comment block to
better explain the cmd triggert.

Add a comment to step 2b of the (*do_cmdtest) to clarify the
trigger check.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: fix comments about the 'ao' board range

The waveform analog outputs on the 'ao' boards are not currently
supported. Modify the comment about the analog output range on
these boards so that the information is saved but fixes the
checkpatch.pl issues:
WARNING: Block comments use a trailing */ on a separate line

Move the comment so it's grouped with the comedi_lrange info.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: fix lines over 80 characters

These comments are just extra cruft. Remove them to fix the
checkpatch.pl issues:
WARNING: line over 80 characters

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: fix comments in das1800_ai_handler()

Fix the checkpatch.pl issues:
WARNING: line over 80 characters

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: fix comments in das1800_ai_cmd()

Fix the checkpatch.pl issues:
WARNING: Block comments use a trailing */ on a separate line
WARNING: line over 80 characters

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: remove the function comments

These comments are just added cruft. Remove them.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: clarify step 4 of the ai (*do_cmdtest)

This step of the (*do_cmdtest) fixes the timing arguments when the
cmd->convert_src is TRIG_TIMER. The code is compact but it's a bit
hard to understand the "burst mode" vs. "non burst mode" (i.e. paced)
timing.

Clarify the fixup by splitting it into separate functions to check
the arguments based on if the command is doing 'paced' or 'burst'
timing. Add some comments to clarify the fixups.

This also fixes a minor issue with the 'burst' timing. When the
cmd->scan_begin_src is also TRIG_TIMER the pacer clock is used to
start each scan. The cmd->scan_begin_arg specifies the scan time.
The minimum (not maximum) value for this time must be large enough
for the 'burst' conversion time to sample all the channels.

The current 'max' check limits the scan time to the minimum time
(i.e. the max conversion speed).

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: remove the private data member comments

The comments about the members of the private data are not really
necessary and removing them fixes a couple checkpatch.pl issues.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: move comment about max conversion speeds

For aesthetics, move this information into the comedi comment block.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: change type of private data 'fifo_buf'

Fix the checkpatch.pl issue:
CHECK: Prefer kernel type 'u16' over 'uint16_t'

Change the type to 'unsigned short' as that is more typical in comedi
drivers.

Use sizeof(*p) instead of sizeof(type) when allocation the buffer.
Also fix the checkpatch.pl issue:
WARNING: line over 80 characters

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: cleanup copyright and comedi comment blocks

Tidy up these multi-line comments to fix the checkpatch.pl issues:
WARNING: Block comments use * on subsequent lines
WARNING: line over 80 characters

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: document the spinlock

The comedi_device spinlock is used to protect the indirect addressing
selected by the DAS1800_SELECT register. It also prevents races between
the interrupt handler and the analog input (*poll).

Update the comments to make this clear.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: absorb control_a_bits()

Absorb this helper function into the analog input (*do_cmd).
For aesthetics, convert the switch code into if/else.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: use comedi_timeout()

Use the helper function to handle the busywaiting for the analog
input conversion to complete.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: refactor program_chanlist()

Refactor this function so it can be used to program the chanlist for
the analog input (*do_cmd) and (*insn_read).

Rename the function so it has namespace associated with the driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: absorb control_c_bits()

Absorb this helper function into the analog input (*do_cmd).
For aesthetics, convert the switch code into if/else.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: introduce das1800_ai_chanspec_bits()

Introduce a helper function for the common code needed to set the
control c register bits for a channel specification.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: add analog output readback

Use the core provided readback support to allow reading back the last
value written to the analog output channels.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: change type of 'ai_speed' boardinfo

This value is compared against the unsigned int cmd->convert_arg to
check the minimum value (max speed) for the analog input conversion
timing.

For aesthetics, change the type to match the cmd->convert_arg type.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: remove 'qram_len' boardinfo

The "hc" type boards have 64 analog input channels with a 64
entry queue. All the others have 16 channels and a 256 entry
queue.

EXP-1800 expansion boards can be used to increase the number
of analog inputs on the 16 channel boards, 16 channels per
EXP-1800, for a total of 256 channels.

Remove the 'qram_len' member of the boardinfo and use the
'id' member to determine the number of channels.

Add a comment about the number of channels and the unclear
mapping of the channels when EXP-1800 boards are used.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: refactor 'range_ai' boardinfo

The boards supported by this driver have analog inputs with gains
of 1, 10, 50, and 250 ("01" type) or 1, 2, 4, and 8 ("02" type).
Unfortunately, the "01"/"02" type cannot be determined from the
boards id or by probing.

Replace the 'range_ai' member of the boardinfo with a bit-field flag,
'is_01_series' and only set it for the "01" type boards. Remove the
unnecessary initialization for the "02" type boards.

For aesthetics, rename the comedi_lrange arrays and document the gain.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: remove 'ao_ability' boardinfo

The "da" and "hc" type boards have normal analog outputs. The
"ao" type boards have move advanced analog outputs with waveform
generation capability.

Remove the 'ao_ability' member of the boardinfo and use the
'id' member to determine if the subdevice should be initialized.

The "ao" waveform analog outputs are not currently supported.
For aesthetics, add an else if for the initialization of the
subdevice for these boards.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: remove 'ao_n_chan' boardinfo

The "st-da" board types have 4 analog output channels. All other
board types, with analog outputs, only have 2 channels.

Remove the 'ao_n_chan' member of the boardinfo and use the
'id' member to determine the subdevice 'n_chan'.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: tidy up das1800_ao_insn_write()

The (*insn_write) functions are supposed to write insn->n values to the
specified channel. Tidy up this function and make it work like the core
expects.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: initialize all analog outputs

The current code used to initialize the analog outputs only sets the
last channel. The other channels will be reloaded with the last value
that was written to them.

Move the code into the subdevice init and properly initialize all the
channels to 0V.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: remove 'do_n_chan' boardinfo

The "hc" type boards have 8 digtial outputs. All other board
types have 4.

Remove the 'do_n_chan' member of the boardinfo and use the
'id' member to determine the subdevice 'n_chan'.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: remove 'resolution' boardinfo

The "hr" type boards have 16-bit analog inputs and outputs.
All other board types have 12-bit.

Remove the 'resolution' member of the boardinfo and use the
'id' member to determine the subdevices 'maxdata'.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: use comedi_offset_munge() for analog output

The analog outputs expect 2's complement data. For aesthetics, use
the helper function to handle the munging instead of depending on
the boardinfo 'resolution'.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: remove 'common' boardinfo member

The "hc" type boards do not support common mode analog inputs
all the other board types do.

Remove the unnecessary member from the boardinfo and use the
'id' member to determine if the SDF_COMMON flag should be set
for the subdevice.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: tidy up das1800_probe()

Refactor das1800_probe() to return an errno instead of the boardinfo
pointer.

Add the board 'id' to the boardinfo to tidy up this function to clarify
the sanity check when the user provided a board name when trying to
attach to the driver.

Currently when this function probes for a boardinfo based on the board
id it returns the wrong boardinfo for the "st-da" and "hr-da" types.
This causes the analog input subdevice for those boards to not be
available. Fix the probe so that a proper boardinfo is used.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: tidy up boardinfo

For aesthetics, add some whitespace to the boardinfo array.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: tidy up analog input subdevice init

For aesthetics, add some whitespace to the subdevice init and rename
the subdevice support functions.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: tidy up analog output subdevice init

For aesthetics, add some whitespace to the subdevice init and rename
the (*insn_write) function.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: tidy up digital input subdevice init

For aesthetics, add some whitespace to the subdevice init and rename
the (*insn_bits) function.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: tidy up digital output subdevice init

For aesthetics, add some whitespace to the subdevice init and rename
the (*insn_bits) function.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: plx9080.h: rename CamelCase enum value

Rename the enum value to fix the checkpatch.pl issue:
CHECK: Avoid CamelCase: <MARB_PCIv21_MODE>

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: comedi_8254.h: tidy up the register map defines

Tidy up the defines to fix the checkpatch.pl issues:
CHECK: Prefer using the BIT macro

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: amcc_s5933.h: tidy up comment issues

Tidy up the comments to fix the checkpatch.pl isses:
WARNING: Block comments use * on subsequent lines
WARNING: line over 80 characters

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: ni_stc.h: tidy up block comments

Tidy up the block comments to fix the checkpatch.pl issues:
WARNING: Block comments use * on subsequent lines

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: ni_stc.h: Prefer kernel type 'u8' over 'uint8_t'

Change the type to fix the checkpatch.pl issues.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: ni_stc.h: Prefer 'unsigned int' to bare use of 'unsigned'

Change the types to fix the checkpatch.pl issues.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: fix das-1801st-da boardinfo

The "da" type boards all have 4 analog outputs. Fix the boardinfo
for the das-1801st-da.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: fix analog input sample munging

The analog input samples are 2's complement when the inputs are configured
for bipolar ranges and offset binary when they are unipolar ranges. For
bipolar ranges the sample needs to be munged to the offset binary format
that comedi uses.

The (*insn_read) does the munging correctly but the async command support
incorrectly munges the data for both bipolar and unipolar ranges when
reading the remaining samples from the fifo in das1800_handle_fifo_not_empty().

Add a (*munge) function to the analog input subdevice so that the samples
are correctly munged when they are added to the async buffer by
comedi_buf_write_samples(). Add a flag to the private data and set it in
the (*do_cmd) so that the munging is only done for bipolar ranges.

Clarify the code by using the core helper functions to check the range and
do the munging.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: comedi: das1800: fix possible NULL dereference

DMA is optional with this driver. If it was not enabled the devpriv->dma
pointer will be NULL.

Fix the possible NULL pointer dereference when trying to disable the DMA
channels in das1800_ai_cancel() and tidy up the comments to fix the
checkpatch.pl issues:
WARNING: line over 80 characters

It's probably harmless in das1800_ai_setup_dma() because the 'desc' pointer
will not be used if DMA is disabled but fix it there also.

Fixes: 99dfc3357e98 ("staging: comedi: das1800: remove depends on ISA_DMA_API limitation")
Cc: <stable@vger.kernel.org> # 4.0+
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: unisys: visorbus: initialize variables

Initializes previously uninitialized variables that were flagged
as being problematic by Smatch.

Signed-off-by: David Binder <david.binder@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: unisys: visorbus: remove unused chipsetready information

Chipsetready sysfs entry is not used by any guests or service
partitions.

remove unused g_chipset_msg_hdr our service partition

remove unused chipsetready_store and driver attributes:
        chipsetready_store()
        visorchipset_guest_attrs
        visorchipset_guest_groupw

remove unused chipsets_events:
        check_chipset_events()
        clear_chipset_events()
        visorchipset_holdchipsetready

remove sysfs documentation dealing with chipsetready

Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: unisys: include: Added kerneldoc comments to visor_device

The visor_device struct is used between multiple drivers, so this
adds kerneldoc comments to the fields.

Signed-off-by: Alexander Curtin <alexander.curtin@unisys.com>
Signed-off-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: unisys: include: Added kernel-doc for struct visor_driver

This adds kerneldoc style comments to the visor_driver struct since
it's shared between multiple modules.

Signed-off-by: Alexander Curtin <alexander.curtin@unisys.com>
Signed-off-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: unisys: include: remove unused fields from struct visor_driver

The build_date and build_time fields are not used, and have been removed.

Signed-off-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: unisys: Documentation: Remove proc-entries.txt

Unisys drivers no longer utilize procfs. Therefore, the documentation
for our procfs entries is no longer needed.

Signed-off-by: David Binder <david.binder@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: unisys: added display string size define

Display string size that is guaranteed to be no longer the 99 characters.

Don't use a magic number throughout the code, define it once and use it
throughout.

Signed-off-by: Erik Arfvidson <erik.arfvidson@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: unisys: visornic: convert BUG_ON to dev_err() message

The caller of visor_copy_fragsinfo_from_skb() is prepared to log a
dev_err() message if it fails (by returning a negative value), so we now
just fail in the one occasion where visor_copy_fragsinfo_from_skb() was
doing a BUG_ON.

There was also a problem before where visor_copy_fragsinfo_from_skb() was
returning a negative to indicate error, yet it was declared to return an
unsigned value!  So obviously that needed correcting too.

Signed-off-by: Tim Sell <Timothy.Sell@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove unused variables

These variables were havnig the pointer returned by wiphy_priv() but
they were never used.

Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Staging: wilc1000: Freed memory in case of error

This patch frees memory allocated inside wilc_wlan_txq_add_cfg_pkt()
in case wilc_wlan_txq_add_to_head() fails.

Signed-off-by: Claudiu Beznea <claudiu.beznea@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename result in handle_set_ip_address

This patch renames result to ret that is used to get return value from
wilc_send_config_pkt. Some handle_*() functions are used as result,
others are used as ret. It will be changed as ret in all handle_*()
functions to match variable name.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: change data type of result in handle_set_ip_address

This patch changes data type of result variable from s32 to int. result
is used to get return value from wilc_send_config_pkt that has return
type of int.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: change handle_set_ip_address's return type to void

When handle_set_ip_address is called in hostIFthread that is a kernel
thread, it is not checked return type of this function. This patch
changes return type to void and removes braces if statement due to have
a single statement.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename result in handle_set_operation_mode

This patch renames result to ret that is used to get return value from
wilc_send_config_pkt. Some handle_*() functions are used as result,
others are used as ret. It will be changed as ret in all handle_*()
functions to match variable name.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: change data type of result in handle_set_operation_mode

This patch changes data type of result variable from s32 to int. result
is used to get return value from wilc_send_config_pkt that has return
type of int.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: change handle_set_operation_mode's return type to void

When handle_set_operation_mode is called in hostIFthread that is a
kernel thread, it is not checked return type of this function. This
patch changes return type to void and removes braces if statement due to
have a single statement.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename result in handle_set_wfi_drv_handler

This patch renames result to ret that is used to get return value from
wilc_send_config_pkt. Some handle_*() function are used as result,
others are used as ret. It will be changed as ret in all handle_*()
function to match variable name.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: change data type of result in handle_set_wfi_drv_handler

This patch changes data type of result variable from s32 to int.
result is used to get return value from wilc_send_config_pkt that has
return type of int.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: change handle_set_wfi_drv_handler's return type to void

When handle_set_wfi_drv_handler is called in hostIFthread that is a
kernel thread, it is not checked return type of this function. This
patch changes return type to void and removes braces if statement due to
have a single statement.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: change return type of ret variable in handle_get_tx_pwr

This patch changes return type of ret variable from s32 to int.
ret has return value from wilc_send_config_pkt that has return type of
int.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove unused hif_drv in wilc_add_beacon

This patch removes unused hif_drv in wilc_add_beacon.
There is no need to check null and print debug log.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove unused hif_drv in wilc_del_beacon

This patch removes unused hif_drv in wilc_del_beacon.
There is no need to check null and print debug log.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove unused hif_drv in wilc_set_pmkid_info

This patch removes unused hif_drv in wilc_set_pmkid_info.
There is no need to check null and print debug log.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove unused hif_drv in host_int_get_assoc_res_info

This patch removes unused hif_drv in host_int_get_assoc_res_info.
There is no need to check null and print debug log.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove unused hif_drv in wilc_set_mac_chnl_num

This patch removes unused hif_drv in wilc_set_mac_chnl_num.
There is no need to check null and print debug log.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove unused hif_drv in wilc_remain_on_channel

This patch removes unused hif_drv in wilc_remain_on_channel.
There is no need to check null and print debug log.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove unused hif_drv in wilc_add_station

This patch removes unused hif_drv in wilc_add_station.
There is no need to check null and print debug log.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove unused hif_drv in wilc_del_station

This patch removes unused hif_drv in wilc_del_station.
There is no need to check null and print debug log.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove unused hif_drv in wilc_del_allstation

This patch removes unused hif_drv in wilc_del_allstation.
There is no need to check null and print debug log.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove unused hif_drv in wilc_edit_station

This patch removes unused hif_drv in wilc_edit_station.
There is no need to checku null and print debug log.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove unused hif_drv in wilc_set_power_mgmt

This patch removes unused hif_drv in wilc_set_power_mgmt.
There is no need to check null and print debug log.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove unused hif_drv in wilc_setup_multicast_filter

This patch removes unused hif_drv in wilc_setup_multicast_filter.
There is no need to check null and print debug log.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove unused hif_drv in wilc_setup_ipaddress

This patch removes unused hif_drv in wilc_setup_ipaddress.
There is no need to check null and print debug log.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove unused hif_drv in host_int_get_ipaddress

This patch removes unused hif_drv in host_int_get_ipaddress.
There is no need to check null and print debug log.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename pu8Buffer in handle_scan

This patch renames pu8Buffer to buffer to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename u32WidsCount in handle_scan

This patch renames u32WidsCount to index to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename strWIDList in handle_scan

This patch renames strWIDList to wid_list to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename pstrHostIFscanAttr in handle_scan

This patch renames pstrHostIFscanAttr to scan_info to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename Handle_Scan

This patch renames Handle_Scan to handle_scan to avoid camelcase.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: remove block scope braces and fix indentation

This patch removes unnecessary block scope braces and fix indentation of
the codes.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: move Handle_ScanDone function declaration

Handle_ScanDone function declaration is moved to front of
host_interface.c file.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: rename goto label in handle_cfg_param

This patch changes goto label from ERRORHANDLER to unlock.
unlock is a more meaningful name than ERRORHANDLER.

Signed-off-by: Chaehyun Lim <chaehyun.lim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: adds a check routine when performed del_key()

This patch is adds a check routine when performed del_key().
We was find this situation while test the 'rmmod sdio'.
That is received inform a .del_key cmd from cfg80211.
If is not exist wep keys, must be ignore a wilc_remove_wep_key() function.
Thus, adds a check routine that key length of wep.

Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: adds a cfg80211_disconnected() function

This patch is adds a cfg80211_disconnected() when connection is lost already.
We was find this situation while test the 'rmmod sdio'.
SDIO remove function are include both remove mac_close and unregister net_device.
That is received one more a disconnect cmd from cfg80211.
Driver was already performed disconnect.
If wilc->close value was set to true, adds a call to cfg80211_disconnected().

Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: add set to null after release firmware

This patch add set to null after release firmware.

Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: removes unnecessary test code

This patch removes unnecessary test code that mac address hardcoding setting.
This test code is support to old firmware.

Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: txq_thread_started: replaces a semaphore with a completion

This patch replaces a semaphore(txq_thread_started) with a completion.
Struct semaphore txq_thread_started is used to signal completion of txq thread.
It is better to use completion than semaphore for this case.

Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: removes duplicate del_timer_sync

This patch removes del_timer_sync(&periodic_rssi) which was
already performed this action.

Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: wilc1000: changes logic when happened mq_send fail

This patch changes logic when happened mq_send fail.
The check as a result value that mq_send fail.
But, regardless of the result value then perform a semaphore up.
That is an occur that semaphore locking.
Add to 'else' routine and move to 'else' position a semaphore up.

Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: llite: quiet overly verbose info message

The client doesn't need to print a message for every client mount that
the layout lock feature is enabled.  This can be found at runtime via
the "import" proc file.

I also noticed that deleting OST objects logs into the debug log with
D_HA status, which is enabled by default.  Move this over to D_INODE
so it doesn't fill the OST debug logs.

Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-1095
Reviewed-on: http://review.whamcloud.com/7918
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: Emoly Liu <emoly.liu@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: debugfs: improve osc/mdc "imports" connect data

Improve /sys/debug/fs/lustre/{osc,mdc}/*/import files to print
the struct obd_connect_data data fields as "connect_data:"
in addition to the "connect_flags:" field.

Signed-off-by: Emoly Liu <emoly.liu@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3386
Reviewed-on: http://review.whamcloud.com/6588
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: obd: add case LCFG_PARAM to osd_process_config

Some proc parameters were moved from ofd to osd module and only
their symlinks were kept in ofd for interoperability/compatibility.
To process this kind of config params passed by ofd, this patch is
to do the following fixes:

 - since these parameters are not included by the static lprocfs var
   list, a pre-check is added for them to avoid "unknown param" error
   message confuses the uses. If they are matched in this check, they
   will be passed to the osd directly.
 - improve the error messages in class_process_proc_param() and
   class_process_proc_seq_param() a little.

Signed-off-by: Emoly Liu <emoly.liu@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4221
Reviewed-on: http://review.whamcloud.com/8238
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: ldlm: dont always check max_pages_per_rpc alignement

If connection is not established yet, cli->cl_chunkbits is
uninitilized so we cannot use it to check max_pages_per_rpc
alignment.

Signed-off-by: Sebastien Buisson <sbuisson@ddn.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4379
Reviewed-on: http://review.whamcloud.com/8558
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Reviewed-by: Emoly Liu <emoly.liu@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: fld: add local fldb to each target

Add local FLDB to each MDT, so OSD/OUT can check whether
FID is remote by looking up local FLDB, i.e. no need send RPC
to MDT0. This is just the client part of the work.

Signed-off-by: wang di <di.wang@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-4076
Reviewed-on: http://review.whamcloud.com/7884
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: brw: added OBDO short io flag

To prevent collisions with any future flags needed in features written
against this branch.

Signed-off-by: Alexander Boyko <alexander_boyko@xyratex.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-1757
Xyratex-bug-id: MRP-1460
Reviewed-on: http://review.whamcloud.com/8182
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Vitaly Fertman <vitaly_fertman@xyratex.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: lustre: echo: remove echo_env_info() regions from echo_client.c

This function declartion is not needed so remove it.

Signed-off-by: John L. Hammond <john.hammond@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2675
Reviewed-on: http://review.whamcloud.com/5580
Reviewed-by: James Simmons <uja.ornl@gmail.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>