The private data structure (`struct comedi_bond_private`) for the
overall "comedi_bond" device maps each channel individually to a pointer
to the `struct bonded_device` it belongs to via array member
`chan_id_dev_map[MAX_CHANS]`. This speeds up look-ups from channel
number to bonded device a bit, but the length of the array used to look
this up is currently fixed at `MAX_CHANS` (256) and there are no
overflow checks when filling the array.

In practice, there will only be a few bonded devices (actually bonded
subdevices) and it is practical to just skip through the list until we
reach the one containing the desired channel.

The only place where the bonded device is looked up from the channel
number is in `bonding_dio_insn_config()`.  Change it to do the look-up
by skipping through the list of bonded devices and remove the
`chan_id_dev_map[]` member.  The `chanid_offset` member of `struct
bonded_device` is also no longer needed as the value can be derived
while skipping through the list of bonded devices, so remove that member
as well.
Signed-off-by: NIan Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

`do_dev_config()` currently records the comedi minor devices it has
opened by setting `devs_opened[minor]` to the pointer returned by
`comedi_open()`.  This is checked to avoid opening the same minor device
twice.  The pointer values in `devs_opened[]` aren't needed; we only
need to record which minor device numbers are being used.  Change
`devs_opened` to a bitmap (declared with `DECLARE_BITMAP()`) of length
`COMEDI_NUM_BOARD_MINORS` as the minor device numbers are range-checked
to fit in a bitmap of this length.  Use `test_and_set_bit()` to record
the minor device numbers we attempt to open with `comedi_open()`.

`bonding_detach()` calls `comedi_close()` to close the comedi minor
devices.  Since the minor device numbers may be repeated in its list of
bonded subdevices, it currently uses a simple `unsigned long
devs_closed` variable as a bitmap to keep track of which minor device
numbers it has already closed to avoid closing them twice.  As a single
`unsigned long` consists of less than `COMEDI_NUM_BOARD_MINORS` bits on
a 32-bit machine, change `devs_closed to a bitmap of this length using
`DECLARE_BITMAP()` and use `test_and_set_bit()` to avoid calling
`comedi_close()` more than once for each minor device number in use.
Signed-off-by: NIan Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

`bonding_attach()` is the comedi "attach" handler for the driver.  Any
non-negative return value is treated as successful, but 0 is the
preferred return value on success.
Signed-off-by: NIan Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Change `do_dev_config()` to return an error code on failure and 0 on
success, instead of 0 on failure and 1 on success.
Signed-off-by: NIan Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The `char file[]` variable in `do_dev_config()` doesn't need to be
initialized as it gets overwritten with a `snprintf()`.  It just needs
to be long enough.
Signed-off-by: NIan Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: NIan Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Omit the fanciful prose from the MODULE_DESCRIPTION() line and combine
concantenated string literals.
Signed-off-by: NIan Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Reformat some comments according to CodingStyle and remove some comments
inherited from the comedi 'skel' example driver.
Signed-off-by: NIan Abbott <abbotti@mev.co.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

DGNC is based on PCI, so need add related dependency, or when compiled
with PCI disabled, it will be fail.

The related error (randconfig for PCI disabled under s390):

  drivers/staging/dgnc/dgnc_cls.c:1394:2: error: implicit declaration of function ‘ioremap’ [-Werror=implicit-function-declaration]
  drivers/staging/dgnc/dgnc_cls.c:1407:3: error: implicit declaration of function ‘iounmap’ [-Werror=implicit-function-declaration]

Cc: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: NChen Gang <gang.chen@asianux.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Correct spelling typo in comments and debug messages.
Signed-off-by: NMasanari Iida <standby24x7@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

struct pt_regs pointer is no longer passed as a irq handler
argument. and also remove unnecessary macros.
Signed-off-by: Nnavin patidar <navinp@cdac.in>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Max. TX frame size supported is changed to 760 bytes.
Signed-off-by: NRupesh Gujare <rupesh.gujare@atmel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Make sure that we return negative value if oz_build_frame()
returns NULL.
Signed-off-by: NRupesh Gujare <rupesh.gujare@atmel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

We have icreased interrupt end point buffer size to 512 bytes,
Change variable data type to accomodate it.
Signed-off-by: NRupesh Gujare <rupesh.gujare@atmel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Increase interrupt end point buffer size & convert hard coded
value to macro for better readability.
Signed-off-by: NRupesh Gujare <rupesh.gujare@atmel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Use macro instead of hard coded value for readability.
Signed-off-by: NRupesh Gujare <rupesh.gujare@atmel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Check for valid config number before completing set interface.
Signed-off-by: NRupesh Gujare <rupesh.gujare@atmel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Only one of vnt_rts*/vnt_cts* structures are accessed at any one time.

Join these structures in to a single union.

These will eventually form the tail structure of vnt_tx_buffer and
include structures vnt_tx_datahead*

Structures in s_vFillCTSHead will join in next patch series.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Parse out vnt_rts_a_fb code to new function vnt_rxtx_rts_a_fb_head.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Parse out vnt_rts_ab code to new function vnt_rxtx_rts_ab_head.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Parse out vnt_rts_g_fb code to new function vnt_rxtx_rts_g_fb_head.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Parse out vnt_rts_g code to new function vnt_rxtx_rts_g_head.

Also create a new common calling function vnt_fill_ieee80211_rts
to fill the ieee80211_rts structure.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

If pvRrvTime is NULL the whole structure is NULL, so
remove if statements and consolidate to single return.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

As result of patch
vt6656: rxtx.c s_vFillCTSHead remove dead code bDisCRC

bDisCRC is unused.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

As result of patch
vt6656: device.h Remove dead code bSoftwareGenCrcErr.

dDiscCRC is unused.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

As result of patch
vt6656: device.h Remove dead code bSoftwareGenCrcErr.

dDiscCRC is unused.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Probably an error in earlier firmware is never enabled so remove.

bPacketToWirelessUsb remove dead if/else and variables.
Signed-off-by: NMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This driver has some global names that are the same as found in
driver r8712. Fix the allyesconfig build errors by changing the
names of those routines.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Kernel code need not test for KERNELVERSION. Besides being unnecessary
for an in-kernel driver, these lines will cause a build failure for any
source tree with a stale include/linux/version.h.

This patch is only compile tested.
Signed-off-by: NLarry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Move to use the DEVICE_ATTR_RW/RO macros, making it easier to audit the
sysfs file permissions, and get rid of the "empty" callback for
read-only files, saving lines of code.

Cc: Stefan Hajnoczi <stefanha@gmail.com>
Cc: Laurent Navet <laurent.navet@gmail.com>
Cc: Johannes Thumshirn <morbidrsa@googlemail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Use the default DEVICE_ATTR_RO/RW macros to specify the file permissions
better, and make them easier to audit.

And did we really want any user to be able to write to this file, I kind
of doubt it...

Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Use the DEVICE_ATTR_RW() macro to be clearer as to the permissions for
the sysfs file, making it easier to audit the code.

Cc: Al Cho <acho@novell.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Use the DEVICE_ATTR_RO/RW macros to better describe the permissions on
the file, and make them easier to audit.

Cc: David Täht <d@teklibre.com>
Cc: Sara Bird <sara.bird.iar@gmail.com>
Cc: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The sysfs file for the driver was being created _after_ the device was
announced to userspace, causing a race with any tools looking for sysfs
files.

Fix the race by using the default attribute group for the class.

Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The sysfs file in this driver is showing a raft of debugging values,
none of which belong in sysfs, let alone in a single sysfs file.  If
these really need to be described somewhere, they should go into
debugfs.

For now, just delete the sysfs file, which removes a bunch of files from
the tree.

Cc: Henk de Groot <pe1dnn@amsat.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

On 32-bit m68k, I get lots of warnings like:

    warning: integer constant is too large for ‘long’ type

Switch the L*_POISON definitions from too-large constants and casts
to the proper constant types to fix this.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch fixes Kernel Documentation style.
Signed-off-by: NRupesh Gujare <rupesh.gujare@atmel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

schedule_work() returns true if succeeded & false on failure,
error check was doing exactly reverse.
Also removes extra variable.
Signed-off-by: NRupesh Gujare <rupesh.gujare@atmel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

As we are initialising structure, we do not require
memset().
Signed-off-by: NRupesh Gujare <rupesh.gujare@atmel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>