Merge tag 'gpio-v4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux...

[deliverable/linux.git] / include / linux / compiler.h

diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 06f27fd9d760eed100c0e586afdc2501b63468ab..2e853b679a5da9c4061053b714801d7434728154 100644 (file)
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -304,23 +304,6 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
        __u.__val;                                      \
 })
 
-/**
- * smp_cond_acquire() - Spin wait for cond with ACQUIRE ordering
- * @cond: boolean expression to wait for
- *
- * Equivalent to using smp_load_acquire() on the condition variable but employs
- * the control dependency of the wait to reduce the barrier on many platforms.
- *
- * The control dependency provides a LOAD->STORE order, the additional RMB
- * provides LOAD->LOAD order, together they provide LOAD->{LOAD,STORE} order,
- * aka. ACQUIRE.
- */
-#define smp_cond_acquire(cond) do {            \
-       while (!(cond))                         \
-               cpu_relax();                    \
-       smp_rmb(); /* ctrl + rmb := acquire */  \
-} while (0)
-
 #endif /* __KERNEL__ */
 
 #endif /* __ASSEMBLY__ */