igb_ptp: Include clocksource.h to get CLOCKSOURCE_MASK.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c
index 1d27f2d..8baf3fd 100644 (file)
--- a/drivers/net/ethernet/intel/igb/igb_ptp.c
+++ b/drivers/net/ethernet/intel/igb/igb_ptp.c
@@ -19,6 +19,7 @@
 #include <linux/device.h>
 #include <linux/pci.h>
 #include <linux/ptp_classify.h>
+#include <linux/clocksource.h>
 
 #include "igb.h"