[SK_BUFF]: Introduce skb_copy_from_linear_data{_offset}
To clearly state the intent of copying from linear sk_buffs, _offset being a
overly long variant but interesting for the sake of saving some bytes.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c
index 9633b04..3be6242 100644
--- a/drivers/net/wireless/ray_cs.c
+++ b/drivers/net/wireless/ray_cs.c
@@ -2242,7 +2242,8 @@
rx_ptr += copy_from_rx_buff(local, rx_ptr, pkt_addr & RX_BUFF_END, rx_len);
/* Get source address */
#ifdef WIRELESS_SPY
- memcpy(linksrcaddr, ((struct mac_header *)skb->data)->addr_2, ETH_ALEN);
+ skb_copy_from_linear_data_offset(skb, offsetof(struct mac_header, addr_2),
+ linksrcaddr, ETH_ALEN);
#endif
/* Now, deal with encapsulation/translation/sniffer */
if (!sniffer) {