libgomp, nvptx plugin: Make "nvptx_exec" static

	libgomp/
	* plugin/plugin-nvptx.c (nvptx_exec): Make it static.

From-SVN: r245127

libgomp/ChangeLog

 2017-02-02  Thomas Schwinge  <thomas@codesourcery.com>
 
+	* plugin/plugin-nvptx.c (nvptx_exec): Make it static.
+
 	* libgomp-plugin.h (GOMP_OFFLOAD_openacc_parallel): Rename to
 	GOMP_OFFLOAD_openacc_exec.  Adjust all users.
 	(GOMP_OFFLOAD_openacc_get_current_cuda_device): Rename to

libgomp/plugin/plugin-nvptx.c

@@ -1041,7 +1041,7 @@ event_add (enum ptx_event_type type, CUevent *e, void *h, int val)
   pthread_mutex_unlock (&ptx_event_lock);
 }
 
-void
+static void
 nvptx_exec (void (*fn), size_t mapnum, void **hostaddrs, void **devaddrs,
 	    int async, unsigned *dims, void *targ_mem_desc)
 {