../kernel/bpf/verifier.c:348:12: warning: symbol 'btf_vmlinux' was not declared. Should it be static?
../kernel/bpf/verifier.c:21928:38: error: subtraction of functions? Share your drugs
../kernel/bpf/verifier.c: note: in included file (through ../include/linux/bpf.h, ../include/linux/bpf-cgroup.h):
../include/linux/bpfptr.h:65:40: warning: cast to non-scalar
../include/linux/bpfptr.h:65:40: warning: cast from non-scalar
../include/linux/bpfptr.h:65:40: warning: cast to non-scalar
../include/linux/bpfptr.h:65:40: warning: cast from non-scalar
../include/linux/bpfptr.h:65:40: warning: cast to non-scalar
../include/linux/bpfptr.h:65:40: warning: cast from non-scalar
../include/linux/bpfptr.h:65:40: warning: cast to non-scalar
../include/linux/bpfptr.h:65:40: warning: cast from non-scalar
../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' was not declared. Should it be static?
In file included from ../arch/x86/include/asm/bug.h:99,
                 from ../include/linux/ktime.h:24,
                 from ../include/linux/timer.h:6,
                 from ../include/linux/workqueue.h:9,
                 from ../include/linux/bpf.h:10,
                 from ../include/linux/bpf-cgroup.h:5,
                 from ../kernel/bpf/verifier.c:7:
../kernel/bpf/verifier.c: In function ‘check_helper_call’:
../kernel/bpf/verifier.c:10970:30: error: implicit declaration of function ‘error_recoverable_with_nospec’ [-Wimplicit-function-declaration]
10970 |                 WARN_ON_ONCE(error_recoverable_with_nospec(err));
      |                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../include/asm-generic/bug.h:111:32: note: in definition of macro ‘WARN_ON_ONCE’
  111 |         int __ret_warn_on = !!(condition);                      \
      |                                ^~~~~~~~~
make[5]: *** [../scripts/Makefile.build:207: kernel/bpf/verifier.o] Error 1
make[4]: *** [../scripts/Makefile.build:465: kernel/bpf] Error 2
make[3]: *** [../scripts/Makefile.build:465: kernel] Error 2
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [/home/nipa/net-next/wt-0/Makefile:1989: .] Error 2
make[1]: *** [/home/nipa/net-next/wt-0/Makefile:251: __sub-make] Error 2
make: *** [Makefile:251: __sub-make] Error 2