/* SPDX-License-Identifier: GPL-2.0-only */ #ifndef _ARCH_SMP_SPINLOCK_H #define _ARCH_SMP_SPINLOCK_H #define DECLARE_SPIN_LOCK(x) #define barrier() do {} while (0) #define spin_is_locked(lock) 0 #define spin_unlock_wait(lock) do {} while (0) #define spin_lock(lock) do {} while (0) #define spin_unlock(lock) do {} while (0) #define cpu_relax() do {} while (0) #include #define boot_cpu() 1 #endif