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-rw-r--r--include/net/ip.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/net/ip.h b/include/net/ip.h
index 02d68e346f67..5b317c9f4470 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -760,4 +760,9 @@ int ip_misc_proc_init(void);
int rtm_getroute_parse_ip_proto(struct nlattr *attr, u8 *ip_proto, u8 family,
struct netlink_ext_ack *extack);
+static inline bool inetdev_valid_mtu(unsigned int mtu)
+{
+ return likely(mtu >= IPV4_MIN_MTU);
+}
+
#endif /* _IP_H */