[PATCH] net/mvpp2: fix build with IPv6 address structure

[Thomas Monjalon]

A structure has been created for IPv6 addresses
replacing the byte arrays of the IPv6 header.

This change was failing the compilation:
mrvl_flow.c:1055:29: error: incompatible type for argument 1 of 'memcmp'

Instead of adapting the memcmp call, a new function is used
to compare an IPv6 address with an unspec (zero) address.

Fixes: 89b5642d0d45 ("net: use IPv6 address structure for packet headers")

Signed-off-by: Thomas Monjalon <tho...@monjalon.net>
---
 drivers/net/mvpp2/mrvl_flow.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/net/mvpp2/mrvl_flow.c b/drivers/net/mvpp2/mrvl_flow.c
index 098523ada6..9932e28edc 100644
--- a/drivers/net/mvpp2/mrvl_flow.c
+++ b/drivers/net/mvpp2/mrvl_flow.c
@@ -1031,7 +1031,6 @@ mrvl_parse_ip6(const struct rte_flow_item *item,
               struct rte_flow_error *error)
 {
        const struct rte_flow_item_ipv6 *spec = NULL, *mask = NULL;
-       struct rte_ipv6_hdr zero;
        uint32_t flow_mask;
        int ret;
 
@@ -1043,8 +1042,6 @@ mrvl_parse_ip6(const struct rte_flow_item *item,
        if (ret)
                return ret;
 
-       memset(&zero, 0, sizeof(zero));
-
        if (mask->hdr.payload_len ||
            mask->hdr.hop_limits) {
                rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM,
@@ -1052,15 +1049,13 @@ mrvl_parse_ip6(const struct rte_flow_item *item,
                return -rte_errno;
        }
 
-       if (memcmp(mask->hdr.src_addr,
-                  zero.src_addr, sizeof(mask->hdr.src_addr))) {
+       if (!rte_ipv6_addr_is_unspec(&mask->hdr.src_addr)) {
                ret = mrvl_parse_ip6_sip(spec, mask, flow);
                if (ret)
                        goto out;
        }
 
-       if (memcmp(mask->hdr.dst_addr,
-                  zero.dst_addr, sizeof(mask->hdr.dst_addr))) {
+       if (!rte_ipv6_addr_is_unspec(&mask->hdr.dst_addr)) {
                ret = mrvl_parse_ip6_dip(spec, mask, flow);
                if (ret)
                        goto out;
-- 
2.46.0