2024-03-06 11:42:41

by Ricardo B. Marliere

[permalink] [raw]
Subject: [PATCH] regulator: core: make regulator_class constant

Since commit 43a7206b0963 ("driver core: class: make class_register() take
a const *"), the driver core allows for struct class to be in read-only
memory, so move the regulator_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.

Cc: Greg Kroah-Hartman <[email protected]>
Suggested-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Ricardo B. Marliere <[email protected]>
---
drivers/regulator/core.c | 2 +-
drivers/regulator/internal.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 17c98c5fa45f..d019ca6dee9b 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -5890,7 +5890,7 @@ static const struct dev_pm_ops __maybe_unused regulator_pm_ops = {
};
#endif

-struct class regulator_class = {
+const struct class regulator_class = {
.name = "regulator",
.dev_release = regulator_dev_release,
.dev_groups = regulator_dev_groups,
diff --git a/drivers/regulator/internal.h b/drivers/regulator/internal.h
index fb4433068d29..77a502141089 100644
--- a/drivers/regulator/internal.h
+++ b/drivers/regulator/internal.h
@@ -58,7 +58,7 @@ struct regulator {
struct dentry *debugfs;
};

-extern struct class regulator_class;
+extern const struct class regulator_class;

static inline struct regulator_dev *dev_to_rdev(struct device *dev)
{

---
base-commit: 996e1c6b09f70cdc37d55896f283d35501fb1ab1
change-id: 20240305-class_cleanup-regulator-d87eb7536eec

Best regards,
--
Ricardo B. Marliere <[email protected]>



2024-03-06 12:32:11

by Mark Brown

[permalink] [raw]
Subject: Re: [PATCH] regulator: core: make regulator_class constant

On Tue, 05 Mar 2024 16:00:45 -0300, Ricardo B. Marliere wrote:
> Since commit 43a7206b0963 ("driver core: class: make class_register() take
> a const *"), the driver core allows for struct class to be in read-only
> memory, so move the regulator_class structure to be declared at build time
> placing it into read-only memory, instead of having to be dynamically
> allocated at boot time.
>
>
> [...]

Applied to

https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git for-next

Thanks!

[1/1] regulator: core: make regulator_class constant
commit: 4fe6207508d6525e87149348daeafde152ba672c

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark