This was introduced in Linux commit 801f87469ee8 ("netlink: add
nl_set_extack_cookie_u64()") and is used by the wireless subsystem.
Signed-off-by: Hauke Mehrtens <hauke@xxxxxxxxxx>
---
backport/backport-include/linux/netlink.h | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/backport/backport-include/linux/netlink.h b/backport/backport-include/linux/netlink.h
index f956a769..0fb8e0f3 100644
--- a/backport/backport-include/linux/netlink.h
+++ b/backport/backport-include/linux/netlink.h
@@ -58,4 +58,15 @@ struct netlink_ext_ack {
} while (0)
#endif /* NL_SET_BAD_ATTR */
+#if LINUX_VERSION_IS_LESS(5,0,0)
+static inline void nl_set_extack_cookie_u64(struct netlink_ext_ack *extack,
+ u64 cookie)
+{
+ u64 __cookie = cookie;
+
+ memcpy(extack->cookie, &__cookie, sizeof(__cookie));
+ extack->cookie_len = sizeof(__cookie);
+}
+#endif
+
#endif /* __BACKPORT_LINUX_NETLINK_H */
--
2.20.1
--
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