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Diffstat (limited to 'include/linux/serdev.h')
-rw-r--r--include/linux/serdev.h14
1 files changed, 4 insertions, 10 deletions
diff --git a/include/linux/serdev.h b/include/linux/serdev.h
index 3fab88ba265e..34562eb99931 100644
--- a/include/linux/serdev.h
+++ b/include/linux/serdev.h
@@ -27,7 +27,7 @@ struct serdev_device;
* not sleep.
*/
struct serdev_device_ops {
- ssize_t (*receive_buf)(struct serdev_device *, const u8 *, size_t);
+ size_t (*receive_buf)(struct serdev_device *, const u8 *, size_t);
void (*write_wakeup)(struct serdev_device *);
};
@@ -84,7 +84,6 @@ enum serdev_parity {
struct serdev_controller_ops {
ssize_t (*write_buf)(struct serdev_controller *, const u8 *, size_t);
void (*write_flush)(struct serdev_controller *);
- int (*write_room)(struct serdev_controller *);
int (*open)(struct serdev_controller *);
void (*close)(struct serdev_controller *);
void (*set_flow_control)(struct serdev_controller *, bool);
@@ -185,9 +184,9 @@ static inline void serdev_controller_write_wakeup(struct serdev_controller *ctrl
serdev->ops->write_wakeup(serdev);
}
-static inline ssize_t serdev_controller_receive_buf(struct serdev_controller *ctrl,
- const u8 *data,
- size_t count)
+static inline size_t serdev_controller_receive_buf(struct serdev_controller *ctrl,
+ const u8 *data,
+ size_t count)
{
struct serdev_device *serdev = ctrl->serdev;
@@ -212,7 +211,6 @@ int serdev_device_break_ctl(struct serdev_device *serdev, int break_state);
void serdev_device_write_wakeup(struct serdev_device *);
ssize_t serdev_device_write(struct serdev_device *, const u8 *, size_t, long);
void serdev_device_write_flush(struct serdev_device *);
-int serdev_device_write_room(struct serdev_device *);
/*
* serdev device driver functions
@@ -273,10 +271,6 @@ static inline ssize_t serdev_device_write(struct serdev_device *sdev,
return -ENODEV;
}
static inline void serdev_device_write_flush(struct serdev_device *sdev) {}
-static inline int serdev_device_write_room(struct serdev_device *sdev)
-{
- return 0;
-}
#define serdev_device_driver_register(x)
#define serdev_device_driver_unregister(x)