linux-stable.git/drivers/staging/comedi/proc.c, branch v5.7

proc: introduce proc_create_single{,_data}

2018-05-16T05:23:35+00:00

Variants of proc_create{,_data} that directly take a seq_file show
callback and drastically reduces the boilerplate code in the callers.

All trivial callers converted over.

Signed-off-by: Christoph Hellwig

staging: comedi: Remove redundant license text

2017-11-28T12:20:46+00:00

Now that the SPDX tag is in all comedi files, that identifies the
license in a specific and legally-defined manner.  So the extra GPL text
wording can be removed as it is no longer needed at all.

This is done on a quest to remove the 700+ different ways that files in
the kernel describe the GPL license text.  And there's unneeded stuff
like the address (sometimes incorrect) for the FSF which is never
needed.

No copyright headers or other non-license-description text was removed.

Cc: Ian Abbott 
Cc: H Hartley Sweeten 
Signed-off-by: Greg Kroah-Hartman

staging: comedi: add SPDX identifiers to all greybus driver files

2017-11-28T12:20:45+00:00

It's good to have SPDX identifiers in all files to make it easier to
audit the kernel tree for correct licenses.

Update the drivers/staging/comedi files files with the correct SPDX
license identifier based on the license text in the file itself.  The
SPDX identifier is a legally binding shorthand, which can be used
instead of the full boiler plate text.

This work is based on a script and data from Thomas Gleixner, Philippe
Ombredanne, and Kate Stewart.

Cc: Ian Abbott 
Cc: H Hartley Sweeten 
Cc: Thomas Gleixner 
Cc: Kate Stewart 
Cc: Philippe Ombredanne 
Signed-off-by: Greg Kroah-Hartman

Staging: comedi: proc: Warn if unable to create proc entry

2017-01-03T14:30:21+00:00

The proc entry is not essential for the comedi system as
evident by the support for !CONFIG_PROC_FS. So for failure
to create, just warn and continue loading.

Signed-off-by: Cheah Kok Cheong 
Reviewed-by: Ian Abbott 
Signed-off-by: Greg Kroah-Hartman

Staging: comedi: proc: Add module owner

2017-01-03T14:30:21+00:00

Since this is a loadable kernel module, add module ownership
to follow LKM semantics.

Signed-off-by: Cheah Kok Cheong 
Reviewed-by: Ian Abbott 
Signed-off-by: Greg Kroah-Hartman

Staging: comedi: proc: Add __init prefix

2017-01-03T14:30:21+00:00

Add __init prefix so that symbol will be discarded after
module loading.

Signed-off-by: Cheah Kok Cheong 
Reviewed-by: Ian Abbott 
Signed-off-by: Greg Kroah-Hartman

Staging: comedi: proc: Change file permission to read only

2017-01-03T14:30:21+00:00

As there's no write operation, change to read only.
Was inadvertantly switched to 0644 in commit 1f817b86d5e6
("comedi: Don't use create_proc_read_entry()").

Signed-off-by: Cheah Kok Cheong 
Reviewed-by: Ian Abbott 
Signed-off-by: Greg Kroah-Hartman

Staging: comedi: proc: title block update

2014-03-19T04:41:04+00:00

Follow up patch for "STAGING: comedi: style and checkpatch fixes".
Removes the file name in the comment block per suggestions.

Signed-off-by: Michael Welling 
Signed-off-by: Greg Kroah-Hartman

STAGING: comedi: style and checkpatch fixes

2014-03-18T20:04:19+00:00

Updates block comment per Documentation/CodingStyle.
Also updated due to checkpatch warnings about qouted string
after Lindent modified the spacing slightly.

Signed-off-by: Michael Welling 
Signed-off-by: Greg Kroah-Hartman

staging: comedi: use refcount while reading /proc/comedi

2013-11-12T00:16:44+00:00

In the seq_file 'show' handler for "/proc/comedi" - `comedi_read()` in
"comedi/proc.c",  call `comedi_dev_get_from_minor()` instead of
`comedi_dev_from_minor()` to increment the reference counter for the
`struct comedi_device` while it is being examined.  Call
`comedi_dev_put()` to decrement the reference afterwards.  Also acquire
the `attach_lock` rwsem while checking whether the device is attached.

Signed-off-by: Ian Abbott 
Signed-off-by: Greg Kroah-Hartman