From: David E. Box <david.e.box@xxxxxxxxxxxxxxx> Introduce a configuration option that allows users to build the intel_pmc_ipc driver without ACPI support. This is useful for systems where ACPI is not available or desired. Based on the discussion from the patch [1], it was necessary to provide this option to accommodate specific use cases. Link: https://patchwork.kernel.org/project/netdevbpf/patch/20250227121522.1802832-6-yong.liang.choong@xxxxxxxxxxxxxxx/#26280764 [1] Signed-off-by: David E. Box <david.e.box@xxxxxxxxxxxxxxx> Co-developed-by: Choong Yong Liang <yong.liang.choong@xxxxxxxxxxxxxxx> Signed-off-by: Choong Yong Liang <yong.liang.choong@xxxxxxxxxxxxxxx> --- v2 Changes: - Updated the patch description based on the comment - Update the author correctly - Used "#ifdef" instead of "#if" for CONFIG_ACPI - Placed "#ifdef" inside the function v1: https://patchwork.kernel.org/project/platform-driver-x86/patch/20250312022955.1418234-1-yong.liang.choong@xxxxxxxxxxxxxxx/ --- --- include/linux/platform_data/x86/intel_pmc_ipc.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/platform_data/x86/intel_pmc_ipc.h b/include/linux/platform_data/x86/intel_pmc_ipc.h index 6e603a8c075f..1d34435b7001 100644 --- a/include/linux/platform_data/x86/intel_pmc_ipc.h +++ b/include/linux/platform_data/x86/intel_pmc_ipc.h @@ -36,6 +36,7 @@ struct pmc_ipc_rbuf { */ static inline int intel_pmc_ipc(struct pmc_ipc_cmd *ipc_cmd, struct pmc_ipc_rbuf *rbuf) { +#ifdef CONFIG_ACPI struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; union acpi_object params[PMC_IPCS_PARAM_COUNT] = { {.type = ACPI_TYPE_INTEGER,}, @@ -89,6 +90,9 @@ static inline int intel_pmc_ipc(struct pmc_ipc_cmd *ipc_cmd, struct pmc_ipc_rbuf } return 0; +#else + return -ENODEV; +#endif /* CONFIG_ACPI */ } #endif /* INTEL_PMC_IPC_H */ -- 2.34.1
