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1 /****************************************************************************
2  ****************************************************************************
3  ***
4  ***   This header was automatically generated from a Linux kernel header
5  ***   of the same name, to make information necessary for userspace to
6  ***   call into the kernel available to libc.  It contains only constants,
7  ***   structures, and macros generated from the original header, and thus,
8  ***   contains no copyrightable information.
9  ***
10  ****************************************************************************
11  ****************************************************************************/
12 #ifndef __LINUX_SPINLOCK_UP_H
13 #define __LINUX_SPINLOCK_UP_H
14 
15 #ifndef __LINUX_SPINLOCK_H
16 #error "please don't include this file directly"
17 #endif
18 
19 #define __raw_spin_is_locked(lock) ((void)(lock), 0)
20 
21 #define __raw_spin_lock(lock) do { (void)(lock); } while (0)
22 #define __raw_spin_unlock(lock) do { (void)(lock); } while (0)
23 #define __raw_spin_trylock(lock) ({ (void)(lock); 1; })
24 
25 #define __raw_read_can_lock(lock) (((void)(lock), 1))
26 #define __raw_write_can_lock(lock) (((void)(lock), 1))
27 
28 #define __raw_spin_unlock_wait(lock)   do { cpu_relax(); } while (__raw_spin_is_locked(lock))
29 
30 #endif
31