neta gcc fixes

diff --git a/sys/dev/neta/if_mvneta.c b/sys/dev/neta/if_mvneta.c
index 010cdd5..83b9888 100644
--- a/sys/dev/neta/if_mvneta.c
+++ b/sys/dev/neta/if_mvneta.c
@@ -97,16 +97,6 @@ __FBSDID("$FreeBSD$");

 #define    A3700_TCLK_250MHZ       250000000

-STATIC uint32_t
-mvneta_get_clk()
-{
-#if defined(__aarch64__)
-   return (A3700_TCLK_250MHZ);
-#else
-   return (get_tclk());
-#endif
-}
-
 /* Device Register Initialization */
 STATIC int mvneta_initreg(struct ifnet *);

@@ -213,6 +203,9 @@ STATIC int mvneta_detach(device_t);
 STATIC int mvneta_miibus_readreg(device_t, int, int);
 STATIC int mvneta_miibus_writereg(device_t, int, int, int);

+/* Clock */
+STATIC uint32_t mvneta_get_clk(void);
+
 static device_method_t mvneta_methods[] = {
    /* Device interface */
    DEVMETHOD(device_detach,    mvneta_detach),
@@ -354,6 +347,16 @@ static struct {
    { mvneta_rxtxth_intr, "MVNETA aggregated interrupt" },
 };

+STATIC uint32_t
+mvneta_get_clk()
+{
+#if defined(__aarch64__)
+   return (A3700_TCLK_250MHZ);
+#else
+   return (get_tclk());
+#endif
+}
+
 static int
 mvneta_set_mac_address(struct mvneta_softc *sc, uint8_t *addr)
 {
@@ -831,11 +834,9 @@ STATIC int
 mvneta_detach(device_t dev)
 {
    struct mvneta_softc *sc;
-   struct ifnet *ifp;
    int q;

    sc = device_get_softc(dev);
-   ifp = sc->ifp;

    mvneta_stop(sc);
    /* Detach network interface */