Fix: only include linux/cpuhotplug.h for kernels >= 4.10

Kernels at least <= 4.4 did not have this header file.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

diff --git a/lttng-cpuhotplug.h b/lttng-cpuhotplug.h
index da965d2f7ccc26041e842b508220deb233bb2dc0..76a7cb80bd1ed98d5680b5fcb9db20bdee21e96b 100644 (file)
--- a/lttng-cpuhotplug.h
+++ b/lttng-cpuhotplug.h
@@ -21,11 +21,12 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include <linux/cpuhotplug.h>
-
 struct lttng_cpuhp_node;
 
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0))
+
+#include <linux/cpuhotplug.h>
+
 enum lttng_cpuhp_component {
        LTTNG_RING_BUFFER_FRONTEND,
        LTTNG_RING_BUFFER_BACKEND,