../kernel/bpf/verifier.c:10970:16: error: call to undeclared function 'error_recoverable_with_nospec'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 10970 | WARN_ON_ONCE(error_recoverable_with_nospec(err)); | ^ 1 error generated. make[5]: *** [../scripts/Makefile.build:207: kernel/bpf/verifier.o] Error 1 make[5]: *** Waiting for unfinished jobs.... make[4]: *** [../scripts/Makefile.build:465: kernel/bpf] Error 2 make[4]: *** Waiting for unfinished jobs.... make[3]: *** [../scripts/Makefile.build:465: kernel] Error 2 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