const_structs.checkpatch: add device_type

Since commit aed65af1cc2f ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Make sure that new
usages of the struct already enter the tree as const.

Link: https://lkml.kernel.org/r/20240218-device_cleanup-checkpatch-v1-1-8b0b89c4f6b1@marliere.net
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

const_structs.checkpatch: add bus_type

Since commit d492cc2573a0 ("driver core: device.h: make struct bus_type a
const *"), the driver core can properly handle constant struct bus_type.
Make sure that new usages of the struct already enter the tree as const.

Link: https://lkml.kernel.org/r/20240204-bus_cleanup-checkpatch-v1-1-8d51dcecda20@marliere.net
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Suggested-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Dwaipayan Ray <dwaipayanray1@gmail.com>
Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

const_structs.checkpatch: add xattr_handler

Now that the vfs can handle "const struct xattr_handler" make sure that
new usages of the struct already enter the tree as const.

Link: https://lore.kernel.org/lkml/20230930050033.41174-1-wedsonaf@gmail.com/
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20231012-vfs-xattr_const-v1-1-6c21e82d4d5e@weissschuh.net
Signed-off-by: Christian Brauner <brauner@kernel.org>

const_structs.checkpatch.pl: add kobj_type

Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.")
the driver core allows the usage of const struct kobj_type.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20230204-kobj_type-checkpatch-v1-1-9a94b04adbb2@weissschuh.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

const_structs.checkpatch: add frequently used ops structs

Add commonly used structs (>50 instances) which are always or almost
always const.

Link: https://lkml.kernel.org/r/20211127101134.33101-1-rikard.falkeborn@gmail.com
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

const_structs.checkpatch: add a few sound ops structs

Add a couple of commonly used (>50 instances) sound ops structs that are
typically const.

Link: https://lkml.kernel.org/r/20210922211042.38017-1-rikard.falkeborn@gmail.com
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Cc: Joe Perches <joe@perches.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

const_structs.checkpatch: add pinctrl_ops and pinmux_ops

All usages of include/linux of these are const pointers, and all instances
in the kernel except one, that are not const can be made const (patches
have been posted for those separately).

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Joe Perches <joe@perches.com>
Cc: Andreas Färber <afaerber@suse.de>
Cc: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Link: https://lkml.kernel.org/r/20200830224352.37114-1-rikard.falkeborn@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

const_structs.checkpatch: add phy_ops

All usages of phy_ops in include/linux uses const phy_ops * and all
instances of phy_ops in the kernel that are not const already can be made
const (patches have been posted for those separately).

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Vinod Koul <vkoul@kernel.org>
Link: https://lkml.kernel.org/r/20200824214132.9072-1-rikard.falkeborn@gmail.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

const_structs.checkpatch: add regulator_ops

Add regulator_ops to expected to be const list.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Pi-Hsun Shih <pihsun@chromium.org>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Benson Leung <bleung@chromium.org>
Cc: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Cc: Guenter Roeck <groeck@chromium.org>
Cc: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Link: http://lkml.kernel.org/r/dab1ba1aa03a8236933cfb7a28937efb0b808f13.camel@perches.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

const_structs.checkpatch: add frequently used from Julia Lawall's list

Using const is generally a good idea.

Julia Lawall has created a list of always const and almost always const
structs in the kernel sources.

Link: https://lkml.org/lkml/2016/8/28/95

Add the most frequently used (> 50 cases) that are almost always or
always const.

Link: http://lkml.kernel.org/r/1e16020f8027654db0095bbfbcc11da51025365c.1472664220.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

checkpatch: externalize the structs that should be const

Make it easier to add new structs that should be const.

Link: http://lkml.kernel.org/r/e5a8da43e7c11525bafbda1ca69a8323614dd942.1472664220.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Julia Lawall <julia.lawall@lip6.fr>
Cc: Kees Cook <keescook@chromium.org>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>