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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-03-19 16:08:51 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-03-19 16:08:51 +0100
commit1c6d58b8a03b656bfe4c6930a7d6052782c0bc89 (patch)
tree70991c25d188f5b1cd6f5d84f9f352ec2fa2effa /include/net/ip_tunnels.h
parent744943ac89cd209aec9414dd751c53528d5757e7 (diff)
parent4aea1dc4cad17cd146072e13b1fd404f32b8b3ef (diff)
Merge v6.18.19linux-rolling-lts
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net/ip_tunnels.h')
-rw-r--r--include/net/ip_tunnels.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 4021e6a73e32..80662f812080 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -27,6 +27,13 @@
#include <net/ip6_route.h>
#endif
+/* Recursion limit for tunnel xmit to detect routing loops.
+ * Unlike XMIT_RECURSION_LIMIT (8) used in the no-qdisc path, tunnel
+ * recursion involves route lookups and full IP output, consuming much
+ * more stack per level, so a lower limit is needed.
+ */
+#define IP_TUNNEL_RECURSION_LIMIT 4
+
/* Keep error state on tunnel for 30 sec */
#define IPTUNNEL_ERR_TIMEO (30*HZ)