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platform/surface: aggregator: Make to_ssam_device_driver() respect constness 

Make to_ssam_device_driver() a bit safer by replacing container_of()
with container_of_const() to respect the constness of the passed in
pointer, instead of silently discarding any const specifications. This
change also makes it more similar to to_ssam_device(), which already
uses container_of_const().

Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Link: https://lore.kernel.org/r/20230525205041.2774947-1-luzmaximilian@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Maximilian Luz 2023-05-25 22:50:41 +02:00 committed by Hans de Goede
parent 3279decb2c
commit ed08d937ea
1 changed files with 1 additions and 5 deletions
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6
include/linux/surface_aggregator/device.h
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@ -243,11 +243,7 @@ static inline bool is_ssam_device(struct device *d)
* Return: Returns the pointer to the &struct ssam_device_driver wrapping the
* given device driver @d.
*/
static inline
struct ssam_device_driver *to_ssam_device_driver(struct device_driver *d)
{
return container_of(d, struct ssam_device_driver, driver);
}
#define to_ssam_device_driver(d) container_of_const(d, struct ssam_device_driver, driver)
const struct ssam_device_id *ssam_device_id_match(const struct ssam_device_id *table,
const struct ssam_device_uid uid);