ERROR:root:ld: vmlinux.o: in function `cn_hash_test_dup_del':
cn_hash_test.c:(.text+0x3e9dc3): undefined reference to `cn_del_get_exval'
ld: cn_hash_test.c:(.text+0x3e9dee): undefined reference to `cn_del_get_exval'
ld: cn_hash_test.c:(.text+0x3e9e22): undefined reference to `cn_table_empty'
ld: vmlinux.o: in function `cn_display_htable':
cn_hash_test.c:(.text+0x3e9f67): undefined reference to `cn_display_hlist'
ld: vmlinux.o: in function `cn_hash_test_del_get_exval':
cn_hash_test.c:(.text+0x3ea037): undefined reference to `cn_del_get_exval'
ld: cn_hash_test.c:(.text+0x3ea088): undefined reference to `cn_table_empty'
ld: vmlinux.o: in function `cn_hash_test_dup_add':
cn_hash_test.c:(.text+0x3ea176): undefined reference to `cn_add_elem'
ld: cn_hash_test.c:(.text+0x3ea19e): undefined reference to `cn_get_exval'
ld: cn_hash_test.c:(.text+0x3ea1dc): undefined reference to `cn_add_elem'
ld: cn_hash_test.c:(.text+0x3ea205): undefined reference to `cn_get_exval'
ld: vmlinux.o: in function `cn_hash_test_del':
cn_hash_test.c:(.text+0x3ea387): undefined reference to `cn_del_get_exval'
ld: cn_hash_test.c:(.text+0x3ea3ab): undefined reference to `cn_get_exval'
ld: cn_hash_test.c:(.text+0x3ea3fd): undefined reference to `cn_table_empty'
ld: vmlinux.o: in function `cn_hash_test_add':
cn_hash_test.c:(.text+0x3ea571): undefined reference to `cn_add_elem'
ld: cn_hash_test.c:(.text+0x3ea591): undefined reference to `cn_get_exval'
make[3]: *** [../scripts/Makefile.vmlinux:34: vmlinux] Error 1
make[2]: *** [/home/kunit/testing/Makefile:1166: vmlinux] Error 2
make[1]: *** [/home/kunit/testing/Makefile:224: __sub-make] Error 2
make: *** [Makefile:224: __sub-make] Error 2