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net/tap: fix build for glibc < 2.24

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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));

The glibc commits adds the SOL_NETLINK support:
https://github.com/bminor/glibc/commit/f9b437d5efce93800b51ad2a437c8b1c9

Fixes: 647909bcf3 ("net/tap: use netlink extended ack support")

Signed-off-by: Raslan Darawsheh <rasland@mellanox.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
This commit is contained in:
Raslan Darawsheh 2020-05-10 15:23:47 +03:00 committed by Ferruh Yigit
parent 241546237c
commit 53601aefc4
1 changed files with 5 additions and 0 deletions
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5
drivers/net/tap/tap_netlink.c
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@ -17,6 +17,11 @@
#include "tap_log.h"
/* Compatibility with glibc < 2.24 */
#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 */