kernel/bpf/verifier.c

293 	const char *func_name;
2740 	const char *func_name;
2819 	func_name = btf_name_by_offset(desc_btf, func->name_off);
2820 	addr = kallsyms_lookup_name(func_name);
2823 			func_name);
2835 				func_name);
2852 				     func_proto, func_name,
7861 			verbose(env, "expected an RCU CS when using %s\n", meta->func_name);
11218 				meta->func_name, argno, btf_type_str(ref_t), ref_tname);
11305 			meta->func_name, argno, btf_type_str(ref_t), ref_tname, argno + 1,
11720 	const char *func_name = meta->func_name, *ref_tname;
11730 		verbose(env, "Function %s has %d > %d args\n", func_name, nargs,
12193 			func_name);
12207 	const char *func_name;
12222 	func_name = btf_name_by_offset(desc_btf, func->name_off);
12224 		*kfunc_name = func_name;
12237 	meta->func_name = func_name;
12250 	const char *func_name, *ptr_type_name;
12263 	err = fetch_kfunc_meta(env, insn, &meta, &func_name);
12264 	if (err == -EACCES && func_name)
12265 		verbose(env, "calling kernel function %s is not allowed\n", func_name);
12280 		verbose(env, "program must be sleepable to call sleepable kfunc %s\n", func_name);
12294 				func_name, meta.func_id);
12309 				func_name, meta.func_id);
12331 			verbose(env, "nested rcu read lock (kernel function %s)\n", func_name);
12342 			verbose(env, "kernel func %s is sleepable within rcu_read_lock region\n", func_name);
12348 		verbose(env, "unmatched rcu read unlock (kernel function %s)\n", func_name);
12358 			verbose(env, "kernel func %s is sleepable within non-preemptible region\n", func_name);
12364 		verbose(env, "unmatched attempt to enable preemption (kernel function %s)\n", func_name);
12375 				func_name, meta.func_id);
12389 				func_name, meta.func_id);
12396 				func_name, meta.func_id);
12404 				func_name, meta.func_id);
12597 					meta.func_name);
12617 					func_name,
21038 static int check_attach_modify_return(unsigned long addr, const char *func_name)
21041 	    !strncmp(SECURITY_PREFIX, func_name, sizeof(SECURITY_PREFIX) - 1))