src_map is no longer used in tg3_alloc_rx_skb().  Remove it.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
                            u32 opaque_key, u32 dest_idx_unmasked)
 {
        struct tg3_rx_buffer_desc *desc;
-       struct ring_info *map, *src_map;
+       struct ring_info *map;
        struct sk_buff *skb;
        dma_addr_t mapping;
        int skb_size, dest_idx;
 
-       src_map = NULL;
        switch (opaque_key) {
        case RXD_OPAQUE_RING_STD:
                dest_idx = dest_idx_unmasked & tp->rx_std_ring_mask;