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-rw-r--r--include/linux/efi.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 05c47f857383..73db1ae04cef 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -606,7 +606,11 @@ extern void *efi_get_pal_addr (void);
extern void efi_map_pal_code (void);
extern void efi_memmap_walk (efi_freemem_callback_t callback, void *arg);
extern void efi_gettimeofday (struct timespec64 *ts);
+#ifdef CONFIG_EFI
extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if possible */
+#else
+static inline void efi_enter_virtual_mode (void) {}
+#endif
#ifdef CONFIG_X86
extern efi_status_t efi_query_variable_store(u32 attributes,
unsigned long size,