e1000x: Alter the signature of e1000x_is_vlan_packet

e1000x_is_vlan_packet() had a pointer to uint8_t as a parameter, but
it does not have to be uint8_t. Change the type to void *.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>

hw/net/e1000x_common.c

@@ -47,7 +47,7 @@ bool e1000x_rx_ready(PCIDevice *d, uint32_t *mac)
     return true;
 }
 
-bool e1000x_is_vlan_packet(const uint8_t *buf, uint16_t vet)
+bool e1000x_is_vlan_packet(const void *buf, uint16_t vet)
 {
     uint16_t eth_proto = lduw_be_p(&PKT_GET_ETH_HDR(buf)->h_proto);
     bool res = (eth_proto == vet);

hw/net/e1000x_common.h

@@ -178,7 +178,7 @@ uint32_t e1000x_rxbufsize(uint32_t rctl);
 
 bool e1000x_rx_ready(PCIDevice *d, uint32_t *mac);
 
-bool e1000x_is_vlan_packet(const uint8_t *buf, uint16_t vet);
+bool e1000x_is_vlan_packet(const void *buf, uint16_t vet);
 
 bool e1000x_rx_group_filter(uint32_t *mac, const uint8_t *buf);