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From: Vincenzo Maffione <vmaffione@FreeBSD.org>
Date: Wed, 5 Dec 2018 15:38:52 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r341589 - head/sys/net
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Author: vmaffione
Date: Wed Dec  5 15:38:52 2018
New Revision: 341589
URL: https://svnweb.freebsd.org/changeset/base/341589

Log:
  netmap.h: include stdatomic.h
  
  The stdatomic.h header exports atomic_thread_fence(), that
  can be used to implement the nm_stst_barrier() macro needed
  by netmap.
  
  MFC after:	3 days

Modified:
  head/sys/net/netmap.h

Modified: head/sys/net/netmap.h
==============================================================================
--- head/sys/net/netmap.h	Wed Dec  5 15:05:26 2018	(r341588)
+++ head/sys/net/netmap.h	Wed Dec  5 15:38:52 2018	(r341589)
@@ -784,9 +784,10 @@ static inline void nm_stst_barrier(void)
 #ifdef _KERNEL
 #define nm_stst_barrier	atomic_thread_fence_rel
 #else  /* !_KERNEL */
+#include <stdatomic.h>
 static inline void nm_stst_barrier(void)
 {
-	__atomic_thread_fence(__ATOMIC_RELEASE);
+	atomic_thread_fence(memory_order_release);
 }
 #endif /* !_KERNEL */