diff --git a/arch/x86/include/asm/posix_types.h b/arch/x86/include/asm/posix_types.h index 717f6cb8e0..dbcea7f47f 100644 --- a/arch/x86/include/asm/posix_types.h +++ b/arch/x86/include/asm/posix_types.h @@ -16,7 +16,8 @@ typedef int __kernel_pid_t; typedef unsigned short __kernel_ipc_pid_t; typedef unsigned short __kernel_uid_t; typedef unsigned short __kernel_gid_t; -#if CONFIG_IS_ENABLED(X86_64) +/* checking against __x86_64__ covers both 64-bit EFI stub and 64-bit U-Boot */ +#if defined(__x86_64__) typedef unsigned long __kernel_size_t; typedef long __kernel_ssize_t; #else