==========
build_allmodconfig_warn - FAILED


../kernel/bpf/syscall.c:6092:1: warning: ‘skip_mods_and_typedefs’ defined but not used [-Wunused-function]
 6092 | skip_mods_and_typedefs(const struct btf *btf, u32 id, u32 *res_id)
      | ^~~~~~~~~~~~~~~~~~~~~~
../kernel/bpf/syscall.c:6082:13: warning: ‘sym_is_extern’ defined but not used [-Wunused-function]
 6082 | static bool sym_is_extern(const Elf64_Sym *sym)
      |             ^~~~~~~~~~~~~
../kernel/bpf/syscall.c:6056:12: warning: ‘find_extern_sec_btf_id’ defined but not used [-Wunused-function]
 6056 | static int find_extern_sec_btf_id(struct btf *btf, int ext_btf_id)
      |            ^~~~~~~~~~~~~~~~~~~~~~
../kernel/bpf/syscall.c:6016:12: warning: ‘find_extern_btf_id’ defined but not used [-Wunused-function]
 6016 | static int find_extern_btf_id(const struct btf *btf, const char *ext_name)
      |            ^~~~~~~~~~~~~~~~~~
../kernel/bpf/syscall.c:6461:48: warning: incorrect type in argument 2 (different address spaces)
../kernel/bpf/syscall.c:6461:48:    expected void const [noderef] __user *from
../kernel/bpf/syscall.c:6461:48:    got void const *
../kernel/bpf/syscall.c:6481:46: warning: incorrect type in argument 2 (different address spaces)
../kernel/bpf/syscall.c:6481:46:    expected void const [noderef] __user *from
../kernel/bpf/syscall.c:6481:46:    got void const *
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/staging/gpib/fmh_gpib/fmh_gpib.o
../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' was not declared. Should it be static?
../kernel/bpf/syscall.c: In function ‘collect_externs’:
../kernel/bpf/syscall.c:6463:34: error: implicit declaration of function ‘bpf_core_essential_name_len’ [-Wimplicit-function-declaration]
 6463 |                 ext_essent_len = bpf_core_essential_name_len(ext->name);
      |                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
make[5]: *** [../scripts/Makefile.build:194: kernel/bpf/syscall.o] Error 1
make[4]: *** [../scripts/Makefile.build:440: kernel/bpf] Error 2
make[3]: *** [../scripts/Makefile.build:440: kernel] Error 2
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/home/nipa/net-next/wt-1/Makefile:1993: .] Error 2
make[1]: *** [/home/nipa/net-next/wt-1/Makefile:251: __sub-make] Error 2
make: *** [Makefile:251: __sub-make] Error 2