fm10k: remove fm10k_get_reta_size from namespace

The function is only used in fm10k_ethtool.c, so make it static.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/fm10k/fm10k.h

@@ -496,7 +496,6 @@ int fm10k_close(struct net_device *netdev);
 
 /* Ethtool */
 void fm10k_set_ethtool_ops(struct net_device *dev);
-u32 fm10k_get_reta_size(struct net_device *netdev);
 void fm10k_write_reta(struct fm10k_intfc *interface, const u32 *indir);
 
 /* IOV */

drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c

@@ -966,7 +966,7 @@ static int fm10k_set_priv_flags(struct net_device *netdev, u32 priv_flags)
 	return 0;
 }
 
-u32 fm10k_get_reta_size(struct net_device __always_unused *netdev)
+static u32 fm10k_get_reta_size(struct net_device __always_unused *netdev)
 {
 	return FM10K_RETA_SIZE * FM10K_RETA_ENTRIES_PER_REG;
 }