From 83be4bee57f0374ff751aaff3fef4af0af66ec81 Mon Sep 17 00:00:00 2001 From: Yazen Ghannam Date: Fri, 17 Oct 2025 13:26:28 +0000 Subject: ACPI: PRM: Add acpi_prm_handler_available() Add a helper function to check if a PRM handler/module is present. This can be used during init time by code that depends on a particular handler. If the handler is not present, then the code does not need to be loaded. Signed-off-by: Yazen Ghannam Signed-off-by: Borislav Petkov (AMD) Reviewed-by: "Mario Limonciello (AMD)" Acked-by: "Rafael J. Wysocki (Intel)" Link: https://patch.msgid.link/all/20251017-wip-atl-prm-v2-1-7ab1df4a5fbc@amd.com --- include/linux/prmt.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') 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; -- cgit