timer/linux: remove global variable

This variable is only used in one file, so make it static.

Signed-off-by: Jeff Squyres <jsquyres@cisco.com>

opal/mca/timer/linux/timer_linux.h

@@ -9,6 +9,7 @@
  *                         University of Stuttgart.  All rights reserved.
  * Copyright (c) 2004-2005 The Regents of the University of California.
  *                         All rights reserved.
+ * Copyright (c) 2017      Cisco Systems, Inc.  All rights reserved
  * $COPYRIGHT$
  *
  * Additional copyrights may follow
@@ -22,8 +23,6 @@
 #include "opal_config.h"
 #include <opal/sys/timer.h>
 
-OPAL_DECLSPEC extern opal_timer_t opal_timer_linux_freq;
-
 OPAL_DECLSPEC extern opal_timer_t (*opal_timer_base_get_cycles)(void);
 OPAL_DECLSPEC extern opal_timer_t (*opal_timer_base_get_usec)(void);
 

opal/mca/timer/linux/timer_linux_component.c

@@ -14,7 +14,7 @@
  *                         and Technology (RIST). All rights reserved.
  * Copyright (c) 2015-2017 Los Alamos National Security, LLC. All rights
  *                         reserved.
- * Copyright (c) 2015 Cisco Systems, Inc.  All rights reserved.
+ * Copyright (c) 2015-2017 Cisco Systems, Inc.  All rights reserved
  * Copyright (c) 2016 Broadcom Limited. All rights reserved.
  * $COPYRIGHT$
  *
@@ -49,7 +49,7 @@ opal_timer_t (*opal_timer_base_get_cycles)(void) = opal_timer_base_get_cycles_sy
 opal_timer_t (*opal_timer_base_get_usec)(void) = opal_timer_base_get_usec_sys_timer;
 #endif  /* OPAL_HAVE_CLOCK_GETTIME */
 
-opal_timer_t opal_timer_linux_freq = {0};
+static opal_timer_t opal_timer_linux_freq = {0};
 
 static int opal_timer_linux_open(void);