Index: VirtualBox-6.1.38/src/VBox/HostDrivers/Support/linux/SUPDrv-linux.c =================================================================== --- VirtualBox-6.1.38.orig/src/VBox/HostDrivers/Support/linux/SUPDrv-linux.c +++ VirtualBox-6.1.38/src/VBox/HostDrivers/Support/linux/SUPDrv-linux.c @@ -51,6 +51,12 @@ # include # define VBOX_WITH_SUSPEND_NOTIFICATION #endif +#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 7, 0) +# include +#else +static inline void clac(void) { } +static inline void stac(void) { } +#endif #include #include