diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 9eb74d9e1519..e480fff7142a 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -514,12 +514,12 @@ static unsigned long __init tpacpi_check_quirks(
 	return 0;
 }
 
-static inline bool __pure __init tpacpi_is_lenovo(void)
+static __always_inline bool __pure __init tpacpi_is_lenovo(void)
 {
 	return thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO;
 }
 
-static inline bool __pure __init tpacpi_is_ibm(void)
+static __always_inline bool __pure __init tpacpi_is_ibm(void)
 {
 	return thinkpad_id.vendor == PCI_VENDOR_ID_IBM;
 }