#ifdef CONFIG_X86_32
+#define EFI_LOADER_SIGNATURE "EL32"
+
extern unsigned long asmlinkage efi_call_phys(void *, ...);
#define efi_call_phys0(f) efi_call_phys(f)
#else /* !CONFIG_X86_32 */
+#define EFI_LOADER_SIGNATURE "EL64"
+
extern u64 efi_call0(void *fp);
extern u64 efi_call1(void *fp, u64 arg1);
extern u64 efi_call2(void *fp, u64 arg1, u64 arg2);