From: "Ricardo B. Marliere" ricardo@marliere.net
[ Upstream commit a4735d40a5da96a637af6e5bf9f6ec8b9d996acd ]
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 input_class structure to be declared at build time placing it into read-only memory, instead of having to be dynamically allocated at boot time.
Suggested-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Ricardo B. Marliere ricardo@marliere.net Link: https://lore.kernel.org/r/20240305-class_cleanup-input-v1-1-0c3d950c25db@mar... Signed-off-by: Dmitry Torokhov dmitry.torokhov@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/input/input.c | 2 +- include/linux/input.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/input/input.c b/drivers/input/input.c index 8b6a922f84702..067a9b1d5befc 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -1918,7 +1918,7 @@ static char *input_devnode(struct device *dev, umode_t *mode) return kasprintf(GFP_KERNEL, "input/%s", dev_name(dev)); }
-struct class input_class = { +const struct class input_class = { .name = "input", .devnode = input_devnode, }; diff --git a/include/linux/input.h b/include/linux/input.h index 49790c1bd2c43..fa656f30081f6 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -514,7 +514,7 @@ void input_enable_softrepeat(struct input_dev *dev, int delay, int period);
bool input_device_enabled(struct input_dev *dev);
-extern struct class input_class; +extern const struct class input_class;
/** * struct ff_device - force-feedback part of an input device