linux-toradex.git/samples/kobject/kobject-example.c, branch v6.17-rc3

samples/kobject: make attribute_group const

2025-07-16T11:32:53+00:00

The attr_group structures are allocated once and never modified at
runtime.  Also to match the const‑qualified parameter of
sysfs_create_group().

Signed-off-by: Meng Shao Liu 
Link: https://lore.kernel.org/r/dc94227eaf337a2b92ab77dffa0da9f7f1f84c4e.1752646650.git.sau525@gmail.com
Signed-off-by: Greg Kroah-Hartman

samples/kobject: fix path comment

2025-07-16T11:32:53+00:00

The introductory comment still says the example creates
/sys/kernel/kobject-example, but the code actually creates
/sys/kernel/kobject_example.

Update both comments to reflect the actual sysfs paths. Also,
fix "tree"->"three" typo in kset-example.c.

Signed-off-by: Meng Shao Liu 
Link: https://lore.kernel.org/r/5be61d284a1850f573658f1c105f0b6062e41332.1752646650.git.sau525@gmail.com
Signed-off-by: Greg Kroah-Hartman

samples/kobject: add missing MODULE_DESCRIPTION() macros

2024-06-04T16:04:28+00:00

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in samples/kobject/kobject-example.o
WARNING: modpost: missing MODULE_DESCRIPTION() in samples/kobject/kset-example.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson 
Link: https://lore.kernel.org/r/20240601-md-samples-kobject-v1-1-f63b215d50cb@quicinc.com
Signed-off-by: Greg Kroah-Hartman

samples/kobject: Use sysfs_emit instead of sprintf

2022-03-18T13:28:29+00:00

sysfs_emit() is preferred over sprintf() when formatting the value to be
returned to user space in show() functions, because it knows about sysfs
buffer specifics and has sanity checks.

Signed-off-by: Nguyen Dinh Phi 
Link: https://lore.kernel.org/r/20220303183618.1342358-1-phind.uet@gmail.com
Signed-off-by: Greg Kroah-Hartman

kobject: Remove redundant license text

2017-12-07T17:36:43+00:00

Now that the SPDX tag is in all kobject 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.

Signed-off-by: Greg Kroah-Hartman

kobject: add SPDX identifiers to all kobject files

2017-12-07T17:36:43+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 kobject 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: Thomas Gleixner 
Cc: Kate Stewart 
Cc: Philippe Ombredanne 
Signed-off-by: Greg Kroah-Hartman

samples/kobject: be explicit in the module license

2015-03-25T12:41:42+00:00

Rusty pointed out that the module license should be "GPL v2" to properly
match the notice at the top of the files, so make that change.

Reported-by: Rusty Russell 
Signed-off-by: Greg Kroah-Hartman

samples/kobject: Use kstrtoint instead of sscanf

2015-03-25T12:40:31+00:00

Use kstrtoint function instead of sscanf and check for return values.

Signed-off-by: Rastislav Barlik 
Signed-off-by: Greg Kroah-Hartman

samples/kobject/: avoid world-writable sysfs files.

2014-05-14T01:23:57+00:00

In line with practice for module parameters, we're adding a build-time
check that sysfs files aren't world-writable.

Cc: Greg Kroah-Hartman 
Signed-off-by: Rusty Russell

kobject-example: Spelling fixes.

2010-03-08T01:04:46+00:00

No change in functionality.

Signed-off-by: Radu Voicilas 
Signed-off-by: Greg Kroah-Hartman