../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);
      |                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../kernel/bpf/syscall.c: At top level:
../kernel/bpf/syscall.c:6817:13: warning: ‘insn_is_pseudo_func’ defined but not used [-Wunused-function]
 6817 | static bool insn_is_pseudo_func(struct bpf_insn *insn)
      |             ^~~~~~~~~~~~~~~~~~~
../kernel/bpf/syscall.c:6797:13: warning: ‘insn_is_subprog_call’ defined but not used [-Wunused-function]
 6797 | static bool insn_is_subprog_call(const struct bpf_insn *insn)
      |             ^~~~~~~~~~~~~~~~~~~~
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
../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);
      |                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../kernel/bpf/syscall.c: In function ‘resolve_ksym_var_btf_id’:
../kernel/bpf/syscall.c:7156:15: error: implicit declaration of function ‘bpf_core_types_are_compat’ [-Wimplicit-function-declaration]
 7156 |         err = bpf_core_types_are_compat(obj->btf, local_type_id,
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~
../kernel/bpf/syscall.c:7135:21: warning: variable ‘targ_var_name’ set but not used [-Wunused-but-set-variable]
 7135 |         const char *targ_var_name;
      |                     ^~~~~~~~~~~~~
../kernel/bpf/syscall.c:7132:43: warning: variable ‘targ_type’ set but not used [-Wunused-but-set-variable]
 7132 |         const struct btf_type *targ_var, *targ_type;
      |                                           ^~~~~~~~~
../kernel/bpf/syscall.c: At top level:
../kernel/bpf/syscall.c:6817:13: warning: ‘insn_is_pseudo_func’ defined but not used [-Wunused-function]
 6817 | static bool insn_is_pseudo_func(struct bpf_insn *insn)
      |             ^~~~~~~~~~~~~~~~~~~
../kernel/bpf/syscall.c:6797:13: warning: ‘insn_is_subprog_call’ defined but not used [-Wunused-function]
 6797 | static bool insn_is_subprog_call(const struct bpf_insn *insn)
      |             ^~~~~~~~~~~~~~~~~~~~
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
New errors added
--- /tmp/tmp.JkzYILfIkO	2025-01-09 17:53:06.988634024 -0800
+++ /tmp/tmp.lscDa0nkdk	2025-01-09 17:53:56.690113550 -0800
@@ -4,0 +5,10 @@
+../kernel/bpf/syscall.c: In function ‘resolve_ksym_var_btf_id’:
+../kernel/bpf/syscall.c:7156:15: error: implicit declaration of function ‘bpf_core_types_are_compat’ [-Wimplicit-function-declaration]
+ 7156 |         err = bpf_core_types_are_compat(obj->btf, local_type_id,
+      |               ^~~~~~~~~~~~~~~~~~~~~~~~~
+../kernel/bpf/syscall.c:7135:21: warning: variable ‘targ_var_name’ set but not used [-Wunused-but-set-variable]
+ 7135 |         const char *targ_var_name;
+      |                     ^~~~~~~~~~~~~
+../kernel/bpf/syscall.c:7132:43: warning: variable ‘targ_type’ set but not used [-Wunused-but-set-variable]
+ 7132 |         const struct btf_type *targ_var, *targ_type;
+      |                                           ^~~~~~~~~
Per-file breakdown
--- /tmp/tmp.b9MtHUodmN	2025-01-09 17:53:56.715113288 -0800
+++ /tmp/tmp.VBJQOGs8OF	2025-01-09 17:53:56.722113215 -0800
@@ -1 +1 @@
-      3 ../kernel/bpf/syscall.c
+      6 ../kernel/bpf/syscall.c