[dpdk-dev] [PATCH] net/tap: fix compilation issue glibc < 2.24

[Raslan Darawsheh <rasland@mellanox.com>]

When trying to compile with glibc < 2.24 that doesn't
support SOL_NETLINK it will cause compilation failure:

drivers/net/tap/tap_netlink.c:70:17: error:
 'SOL_NETLINK' undeclared (first use in this function)
  setsockopt(fd, SOL_NETLINK, NETLINK_EXT_ACK, &one, sizeof(one));

Fixes: b9cf1a882820 ("net/tap: use netlink extended ack support")
Cc: stephen@networkplumber.org

Signed-off-by: Raslan Darawsheh <rasland@mellanox.com>
---
 drivers/net/tap/tap_netlink.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/tap/tap_netlink.c b/drivers/net/tap/tap_netlink.c
index b73802b51..dcd7ab99b 100644
--- a/drivers/net/tap/tap_netlink.c
+++ b/drivers/net/tap/tap_netlink.c
@@ -17,6 +17,11 @@
 
 #include "tap_log.h"
 
+/*define SOL_NETLINK for old kernels usage. */
+#ifndef SOL_NETLINK
+#define SOL_NETLINK     270
+#endif
+
 /* Must be quite large to support dumping a huge list of QDISC or filters. */
 #define BUF_SIZE (32 * 1024) /* Size of the buffer to receive kernel messages */
 #define SNDBUF_SIZE 32768 /* Send buffer size for the netlink socket */
-- 
2.26.0