Defined in 4 files as a macro:
- arch/openrisc/include/asm/spinlock.h, line 26 (as a macro)
- arch/powerpc/include/asm/spinlock.h, line 313 (as a macro)
- arch/s390/include/asm/spinlock.h, line 106 (as a macro)
- kernel/locking/spinlock.c, line 49 (as a macro)