diff options
| -rw-r--r-- | drivers/acpi/prmt.c | 6 | ||||
| -rw-r--r-- | include/linux/prmt.h | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/acpi/prmt.c b/drivers/acpi/prmt.c index 6792d4385eee..7b8b5d2015ec 100644 --- a/drivers/acpi/prmt.c +++ b/drivers/acpi/prmt.c @@ -244,6 +244,12 @@ static struct prm_handler_info *find_prm_handler(const guid_t *guid) return (struct prm_handler_info *) find_guid_info(guid, GET_HANDLER); } +bool acpi_prm_handler_available(const guid_t *guid) +{ + return find_prm_handler(guid) && find_prm_module(guid); +} +EXPORT_SYMBOL_GPL(acpi_prm_handler_available); + /* In-coming PRM commands */ #define PRM_CMD_RUN_SERVICE 0 diff --git a/include/linux/prmt.h b/include/linux/prmt.h index c53ab287e932..8cdc987de963 100644 --- a/include/linux/prmt.h +++ b/include/linux/prmt.h @@ -4,9 +4,11 @@ #ifdef CONFIG_ACPI_PRMT void init_prmt(void); +bool acpi_prm_handler_available(const guid_t *handler_guid); int acpi_call_prm_handler(guid_t handler_guid, void *param_buffer); #else static inline void init_prmt(void) { } +static inline bool acpi_prm_handler_available(const guid_t *handler_guid) { return false; } static inline int acpi_call_prm_handler(guid_t handler_guid, void *param_buffer) { return -EOPNOTSUPP; |