Extern or forward variable declaration at include/linux/efi.h, line 592 References: arch/x86/platform/efi/efi_64.c, line 89 arch/x86/platform/efi/efi_64.c, line 90 arch/x86/platform/efi/efi_64.c, line 91 arch/x86/platform/efi/efi_64.c, line 113 arch/x86/platform/efi/efi_64.c, line 182 arch/x86/platform/efi/efi_64.c, line 266 arch/x86/platform/efi/efi_64.c, line 363 arch/x86/platform/efi/efi_64.c, line 451 arch/x86/platform/efi/efi_64.c, line 465 arch/x86/platform/efi/efi_64.c, line 466 arch/x86/platform/efi/efi_64.c, line 472 arch/x86/platform/efi/quirks.c, line 379 drivers/firmware/efi/efi.c, line 56 drivers/firmware/efi/efi.c, line 60 drivers/firmware/efi/efi.c, line 61 drivers/firmware/efi/efi.c, line 62 drivers/firmware/efi/efi.c, line 63 include/linux/efi.h, line 592