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Input: make events() method return number of events processed

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In preparation to consolidating filtering and event processing in the
input core change events() method to return number of events processed
by it.

Reviewed-by: Jeff LaBundy <jeff@labundy.com>
Reviewed-by: Benjamin Tissoires <bentiss@kernel.org>
Link: https://lore.kernel.org/r/20240703213756.3375978-4-dmitry.torokhov@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov 2024-07-03 14:37:50 -07:00
parent a184cf98b1
commit 14498e993f
2 changed files with 8 additions and 5 deletions
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6
drivers/input/evdev.c
View File

@ -288,8 +288,8 @@ static void evdev_pass_values(struct evdev_client *client,
/*
* Pass incoming events to all connected clients.
*/
static void evdev_events(struct input_handle *handle,
const struct input_value *vals, unsigned int count)
static unsigned int evdev_events(struct input_handle *handle,
struct input_value *vals, unsigned int count)
{
struct evdev *evdev = handle->private;
struct evdev_client *client;
@ -306,6 +306,8 @@ static void evdev_events(struct input_handle *handle,
evdev_pass_values(client, vals, count, ev_time);
rcu_read_unlock();
return count;
}
static int evdev_fasync(int fd, struct file *file, int on)

7
include/linux/input.h
View File

@ -275,7 +275,8 @@ struct input_handle;
* it may not sleep
* @events: event sequence handler. This method is being called by
* input core with interrupts disabled and dev->event_lock
* spinlock held and so it may not sleep
* spinlock held and so it may not sleep. The method must return
* number of events passed to it.
* @filter: similar to @event; separates normal event handlers from
* "filters".
* @match: called after comparing device's id with handler's id_table
@ -312,8 +313,8 @@ struct input_handler {
void *private;
void (*event)(struct input_handle *handle, unsigned int type, unsigned int code, int value);
void (*events)(struct input_handle *handle,
const struct input_value *vals, unsigned int count);
unsigned int (*events)(struct input_handle *handle,
struct input_value *vals, unsigned int count);
bool (*filter)(struct input_handle *handle, unsigned int type, unsigned int code, int value);
bool (*match)(struct input_handler *handler, struct input_dev *dev);
int (*connect)(struct input_handler *handler, struct input_dev *dev, const struct input_device_id *id);