diff -drupN a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
--- a/net/ipv4/fib_semantics.c	2018-08-06 17:23:04.000000000 +0300
+++ b/net/ipv4/fib_semantics.c	2022-06-12 05:28:14.000000000 +0300
@@ -52,7 +52,11 @@ static struct hlist_head *fib_info_laddr
 static unsigned int fib_info_hash_size;
 static unsigned int fib_info_cnt;
 
+#if CONFIG_BASE_SMALL > 0
+#define DEVINDEX_HASHBITS 2
+#else
 #define DEVINDEX_HASHBITS 8
+#endif
 #define DEVINDEX_HASHSIZE (1U << DEVINDEX_HASHBITS)
 static struct hlist_head fib_info_devhash[DEVINDEX_HASHSIZE];