This is used by the mac80211_hwsim driver. The code was copied from the
mainline kernel.
This was introduced in mainline kernel commit c3ab2b4ec8f7 ("net: ipv4:
Add extack messages for route add failures")
Signed-off-by: Hauke Mehrtens <hauke@xxxxxxxxxx>
---
backport/backport-include/linux/netlink.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/backport/backport-include/linux/netlink.h b/backport/backport-include/linux/netlink.h
index 7da31aad..468a12d1 100644
--- a/backport/backport-include/linux/netlink.h
+++ b/backport/backport-include/linux/netlink.h
@@ -32,4 +32,11 @@ struct netlink_ext_ack {
#define NETLINK_CB_PORTID(__skb) NETLINK_CB(__skb).portid
#endif
+#ifndef NL_SET_BAD_ATTR
+#define NL_SET_BAD_ATTR(extack, attr) do { \
+ if ((extack)) \
+ (extack)->bad_attr = (attr); \
+} while (0)
+#endif /* NL_SET_BAD_ATTR */
+
#endif /* __BACKPORT_LINUX_NETLINK_H */
--
2.11.0
--
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