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driver core: make kobj_type constant.

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This way instances of kobj_type (which contain function pointers) can be
stored in .rodata, which means that they cannot be [easily/accidentally]
modified at runtime.

Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com>
Link: https://lore.kernel.org/r/20211224231345.777370-1-wedsonaf@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wedson Almeida Filho
2021-12-24 23:13:45 +00:00
committed by Greg Kroah-Hartman
parent 67e532a42c
commit ee6d3dd4ed
6 changed files with 13 additions and 13 deletions
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4
Documentation/core-api/kobject.rst
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@@ -118,7 +118,7 @@ Initialization of kobjects
Code which creates a kobject must, of course, initialize that object. Some
of the internal fields are setup with a (mandatory) call to kobject_init()::
void kobject_init(struct kobject *kobj, struct kobj_type *ktype);
void kobject_init(struct kobject *kobj, const struct kobj_type *ktype);
The ktype is required for a kobject to be created properly, as every kobject
must have an associated kobj_type. After calling kobject_init(), to
@@ -156,7 +156,7 @@ kobject_name()::
There is a helper function to both initialize and add the kobject to the
kernel at the same time, called surprisingly enough kobject_init_and_add()::
int kobject_init_and_add(struct kobject *kobj, struct kobj_type *ktype,
int kobject_init_and_add(struct kobject *kobj, const struct kobj_type *ktype,
struct kobject *parent, const char *fmt, ...);
The arguments are the same as the individual kobject_init() and