igb: make local functions static

Sparse caught two functions that were only being used in one file.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/intel/igb/e1000_mac.c

@@ -151,7 +151,7 @@ void igb_clear_vfta_i350(struct e1000_hw *hw)
  *  Writes value at the given offset in the register array which stores
  *  the VLAN filter table.
  **/
-void igb_write_vfta_i350(struct e1000_hw *hw, u32 offset, u32 value)
+static void igb_write_vfta_i350(struct e1000_hw *hw, u32 offset, u32 value)
 {
 	int i;
 

drivers/net/ethernet/intel/igb/igb_main.c

@@ -4003,7 +4003,7 @@ static void igb_set_itr(struct igb_q_vector *q_vector)
 	}
 }
 
-void igb_tx_ctxtdesc(struct igb_ring *tx_ring, u32 vlan_macip_lens,
+static void igb_tx_ctxtdesc(struct igb_ring *tx_ring, u32 vlan_macip_lens,
 			    u32 type_tucmd, u32 mss_l4len_idx)
 {
 	struct e1000_adv_tx_context_desc *context_desc;
@@ -5623,7 +5623,7 @@ static irqreturn_t igb_intr(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-void igb_ring_irq_enable(struct igb_q_vector *q_vector)
+static void igb_ring_irq_enable(struct igb_q_vector *q_vector)
 {
 	struct igb_adapter *adapter = q_vector->adapter;
 	struct e1000_hw *hw = &adapter->hw;