svn commit: r313807 - head/sys/compat/linuxkpi/common/include/asm

[Hans Petter Selasky]

Author: hselasky
Date: Thu Feb 16 12:20:57 2017
New Revision: 313807
URL: https://svnweb.freebsd.org/changeset/base/313807

Log:
  Allow passing a constant atomic_t to atomic_read().
  
  Obtained from:		kmacy @
  MFC after:		1 week
  Sponsored by:		Mellanox Technologies

Modified:
  head/sys/compat/linuxkpi/common/include/asm/atomic.h

Modified: head/sys/compat/linuxkpi/common/include/asm/atomic.h
==============================================================================
--- head/sys/compat/linuxkpi/common/include/asm/atomic.h	Thu Feb 16 12:08:52 2017	(r313806)
+++ head/sys/compat/linuxkpi/common/include/asm/atomic.h	Thu Feb 16 12:20:57 2017	(r313807)
@@ -81,9 +81,9 @@ atomic_set_mask(unsigned int mask, atomi
 }
 
 static inline int
-atomic_read(atomic_t *v)
+atomic_read(const atomic_t *v)
 {
-	return atomic_load_acq_int(&v->counter);
+	return atomic_load_acq_int(&__DECONST(atomic_t *, v)->counter);
 }
 
 static inline int