From 285995d15d3b1725d021a8a274e55f2ce30ccfa0 Mon Sep 17 00:00:00 2001 From: Ognjen Galic Date: Wed, 7 Feb 2018 15:58:27 +0100 Subject: power: add to_power_supply macro to the API This patch adds the to_power_supply macro to upcast a device to a power_supply struct. This is needed because the same piece of code using container_of is used in various other places, so we abstract away such low-level operations via a macro. Suggested-by: Andy Shevchenko Reviewed-by: Andy Shevchenko Signed-off-by: Ognjen Galic Reviewed-by: Sebastian Reichel Signed-off-by: Rafael J. Wysocki --- include/linux/power_supply.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index 79e90b3d3288..f0139b460a72 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -371,6 +371,8 @@ devm_power_supply_register_no_ws(struct device *parent, extern void power_supply_unregister(struct power_supply *psy); extern int power_supply_powers(struct power_supply *psy, struct device *dev); +#define to_power_supply(device) container_of(device, struct power_supply, dev) + extern void *power_supply_get_drvdata(struct power_supply *psy); /* For APM emulation, think legacy userspace. */ extern struct class *power_supply_class; -- cgit v1.2.3-71-gd317