[net-next 2/6] ixgbe: don't use magic size number to assign ptp_caps.name

[Aaron Brown <aaron.f.brown@intel.com>]

From: Jacob Keller <jacob.e.keller@intel.com>

Rather than using a magic size number, just use sizeof since that will
work and is more robust to future changes.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Aaron Brown <aaron.f.brown@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
index 5184e2a..9e54fcc 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
@@ -840,7 +840,9 @@ void ixgbe_ptp_init(struct ixgbe_adapter *adapter)
 
 	switch (adapter->hw.mac.type) {
 	case ixgbe_mac_X540:
-		snprintf(adapter->ptp_caps.name, 16, "%s", netdev->name);
+		snprintf(adapter->ptp_caps.name,
+			 sizeof(adapter->ptp_caps.name),
+			 "%s", netdev->name);
 		adapter->ptp_caps.owner = THIS_MODULE;
 		adapter->ptp_caps.max_adj = 250000000;
 		adapter->ptp_caps.n_alarm = 0;
@@ -854,7 +856,9 @@ void ixgbe_ptp_init(struct ixgbe_adapter *adapter)
 		adapter->ptp_caps.enable = ixgbe_ptp_enable;
 		break;
 	case ixgbe_mac_82599EB:
-		snprintf(adapter->ptp_caps.name, 16, "%s", netdev->name);
+		snprintf(adapter->ptp_caps.name,
+			 sizeof(adapter->ptp_caps.name),
+			 "%s", netdev->name);
 		adapter->ptp_caps.owner = THIS_MODULE;
 		adapter->ptp_caps.max_adj = 250000000;
 		adapter->ptp_caps.n_alarm = 0;
-- 
1.8.5.GIT