net/enic: fix header sizes when copying flow patterns

[ upstream commit dd64991 ]

Several functions use sizeof(struct rte_flow_item_eth) and
sizeof(struct rte_flow_item_ipv6) when copying headers. These sizes
used to coincide with the sizes of rte_ether_hdr and
rte_ipv6_hdr. But, with recently added fields, rte_flow_item_eth and
rte_flow_item_ipv6 have grown in size. Use sizeof(rte_ether_hdr) and
sizeof(rte_ipv6_hdr) instead.

Coverity issue: 363572, 363573
Fixes: ea7768b ("net/enic: add flow implementation based on Flow Manager API")

Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
Reviewed-by: John Daley <johndale@cisco.com>

drivers/net/enic/enic_fm_flow.c

@@ -312,8 +312,8 @@ enic_fm_copy_item_eth(struct copy_item_args *arg)
 	fm_mask = &entry->ftm_mask.fk_hdrset[lvl];
 	fm_data->fk_header_select |= FKH_ETHER;
 	fm_mask->fk_header_select |= FKH_ETHER;
-	memcpy(&fm_data->l2.eth, spec, sizeof(*spec));
-	memcpy(&fm_mask->l2.eth, mask, sizeof(*mask));
+	memcpy(&fm_data->l2.eth, spec, sizeof(struct rte_ether_hdr));
+	memcpy(&fm_mask->l2.eth, mask, sizeof(struct rte_ether_hdr));
 	return 0;
 }
 
@@ -423,8 +423,8 @@ enic_fm_copy_item_ipv6(struct copy_item_args *arg)
 
 	fm_data->fk_header_select |= FKH_IPV6;
 	fm_mask->fk_header_select |= FKH_IPV6;
-	memcpy(&fm_data->l3.ip6, spec, sizeof(*spec));
-	memcpy(&fm_mask->l3.ip6, mask, sizeof(*mask));
+	memcpy(&fm_data->l3.ip6, spec, sizeof(struct rte_ipv6_hdr));
+	memcpy(&fm_mask->l3.ip6, mask, sizeof(struct rte_ipv6_hdr));
 	return 0;
 }
 
@@ -970,7 +970,7 @@ enic_fm_copy_vxlan_encap(struct enic_flowman *fm,
 	eth = (struct rte_ether_hdr *)template;
 	ethertype = &eth->ether_type;
 	append_template(&template, &off, item->spec,
-			sizeof(struct rte_flow_item_eth));
+			sizeof(struct rte_ether_hdr));
 	item++;
 	flow_item_skip_void(&item);
 	/* Optional VLAN */