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| author |   Thomas Weißschuh <linux@weissschuh.net> | 2024-12-10 22:55:54 +0100 |
|---|---|---|
| committer |   Sebastian Reichel <sebastian.reichel@collabora.com> | 2024-12-11 02:00:24 +0100 |
| commit | f52204036326bd9c07db08bab6607f423c801716 (patch) | |
| tree | c2f6c60a26fffe2e961e7e43aa90a2592275bbcf | |
| parent | power: supply: core: remove power_supply_for_each_device() (diff) | |
| download | wireguard-linux-f52204036326bd9c07db08bab6607f423c801716.tar.xz wireguard-linux-f52204036326bd9c07db08bab6607f423c801716.zip | |
power: supply: core: introduce dev_to_psy()
The psy core and drivers currently use dev_get_drvdata() to go from a
'struct device' to its 'struct power_supply'.
This is not typesafe and or documented.
Introduce a new helper to make this pattern explicit.
Instead of using dev_get_drvdata(), use container_of_const() which
also preserves the constness.
Furthermore 'dev' does need to be dereferenced anymore and at some point
the drvdata could be reused for something else.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20241210-power-supply-dev_to_psy-v2-7-9d8c9d24cfe4@weissschuh.net
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to '')
| -rw-r--r-- | include/linux/power_supply.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index 3d67f4a6a1c9..17fc383785bf 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -318,6 +318,8 @@ struct power_supply { #endif }; +#define dev_to_psy(__dev) container_of_const(__dev, struct power_supply, dev) + /* * This is recommended structure to specify static power supply parameters. * Generic one, parametrizable for different power supplies. Power supply |