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: [email protected]
Signed-off-by: Raslan Darawsheh <[email protected]>
---
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
