sfc: avoid an unused-variable warning

'nic_data' is no longer used outside of the #ifdef block
in efx_ef10_set_mac_address:

drivers/net/ethernet/sfc/ef10.c:3231:28: error: unused variable 'nic_data' [-Werror,-Wunused-variable]
        struct efx_ef10_nic_data *nic_data = efx->nic_data;

Move the variable into a local scope.

Fixes: dfcabb07 ("sfc: move vport_id to struct efx_nic")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/sfc/ef10.c

@@ -3228,7 +3228,6 @@ static int efx_ef10_vport_set_mac_address(struct efx_nic *efx)
 static int efx_ef10_set_mac_address(struct efx_nic *efx)
 {
 	MCDI_DECLARE_BUF(inbuf, MC_CMD_VADAPTOR_SET_MAC_IN_LEN);
-	struct efx_ef10_nic_data *nic_data = efx->nic_data;
 	bool was_enabled = efx->port_enabled;
 	int rc;
 
@@ -3256,6 +3255,7 @@ static int efx_ef10_set_mac_address(struct efx_nic *efx)
 
 #ifdef CONFIG_SFC_SRIOV
 	if (efx->pci_dev->is_virtfn && efx->pci_dev->physfn) {
+		struct efx_ef10_nic_data *nic_data = efx->nic_data;
 		struct pci_dev *pci_dev_pf = efx->pci_dev->physfn;
 
 		if (rc == -EPERM) {