如何解决“隐式函数声明”错误？

Question

虽然编译内核时遇到了模拟器问题。

include / linux / idr.h ：

    static inline void *idr_find(struct idr *idr, int id)
    {
            struct idr_layer *hint = rcu_dereference_raw(idr->hint);

            if (hint && (id & ~IDR_MASK) == hint->prefix)
                    return rcu_dereference_raw(hint->ary[id & IDR_MASK]);        //here is not the function logs asking for 

            return idr_find_slowpath(idr, id);
    }

include / linux / radix-tree.h：212：2 ：

    static inline void *radix_tree_deref_slot_protected(void **pslot,
                                                            spinlock_t *treelock)
    {
            return rcu_dereference_protected(*pslot, lockdep_is_held(treelock));
    }

构建日志：

  CHK     include/config/kernel.release
  CHK     include/generated/uapi/linux/version.h
  CHK     scripts/mod/devicetable-offsets.h
  CHK     include/generated/utsrelease.h
  CHK     include/generated/timeconst.h
  CHK     include/generated/bounds.h
  CC      arch/x86/kernel/asm-offsets.s
In file included from include/linux/cgroup-defs.h:12:0,
                 from include/linux/sched.h:62,
                 from include/linux/kasan.h:4,
                 from include/linux/slab.h:113,
                 from include/linux/crypto.h:24,
                 from arch/x86/kernel/asm-offsets.c:8:
include/linux/idr.h: In function 'idr_find':
include/linux/idr.h:117:9: error: implicit declaration of function 
'debug_lockdep_rcu_enabled' [-Werror=implicit-function-declaration]
  struct idr_layer *hint = rcu_dereference_raw(idr->hint);
         ^
In file included from include/linux/fs.h:14:0,
                 from include/linux/cgroup.h:16,
                 from include/linux/memcontrol.h:22,
                 from include/linux/swap.h:8,
                 from include/linux/suspend.h:4,
                 from arch/x86/kernel/asm-offsets.c:12:
include/linux/radix-tree.h: In function 'radix_tree_deref_slot_protected':
include/linux/radix-tree.h:212:2: error: implicit declaration of function 'lockdep_is_held' [-Werror=implicit-function-declaration]
  return rcu_dereference_protected(*pslot, lockdep_is_held(treelock));
  ^
cc1: some warnings being treated as errors
Kbuild:55: recipe for target 'arch/x86/kernel/asm-offsets.s' failed
make[1]: *** [arch/x86/kernel/asm-offsets.s] Error 1
Makefile:1083: recipe for target 'prepare0' failed

make: *** [prepare0] Error 2