[kkdwivedi:cancellations 22/48] kernel/bpf/unwind.c:127:undefined reference to `bpf_sk_release_proto'

[kernel test robot <lkp@intel.com>]

tree:   https://github.com/kkdwivedi/linux cancellations
head:   c5378a88f114558f34a5251ecc2e401d1c111548
commit: 2fd707f27a3e03d4bb53e381f93322a8a3f82919 [22/48] bpf: Add frame descriptor tables and release what they list when unwinding
config: s390-randconfig-2000-20261109 (https://download.01.org/0day-ci/archive/20261109/202611091555.kZ1v3R4J-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 14.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261109/202611091555.kZ1v3R4J-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202611091555.kZ1v3R4J-lkp@intel.com/

All errors (new ones prefixed by >>):

   s390-linux-ld: kernel/bpf/unwind.o: in function `bpf_unwind_release':
>> kernel/bpf/unwind.c:127:(.text+0x9d8): undefined reference to `bpf_sk_release_proto'


vim +127 kernel/bpf/unwind.c

   102	
   103	/*
   104	 * Release one resource by its handle, at run time: the pointer to an object,
   105	 * the address of a stack object or of a lock, or nothing for a section.
   106	 * @flags is the saved IRQ flags of an irqsave lock. Not inlined so that every
   107	 * release of an unwind can be observed by attaching to this function.
   108	 */
   109	noinline void bpf_unwind_release(const struct bpf_resource *res, void *handle, void *flags)
   110	{
   111		/* A destructor that needs RCU protection gets it here, whatever the frames held. */
   112		if (res->rcu)
   113			rcu_read_lock();
   114		switch (res->kind) {
   115		case BPF_RESOURCE_OBJ:
   116			bpf_obj_drop_impl(handle, res->meta);
   117			break;
   118		case BPF_RESOURCE_PERCPU_OBJ:
   119			bpf_percpu_obj_drop_impl(handle, res->meta);
   120			break;
   121		case BPF_RESOURCE_KPTR:
   122		case BPF_RESOURCE_ITER:
   123			res->dtor(handle);
   124			break;
   125	#ifdef CONFIG_NET
   126		case BPF_RESOURCE_SOCK:
 > 127			bpf_sk_release_proto.func((u64)(long)handle, 0, 0, 0, 0);
   128			break;
   129	#endif
   130		case BPF_RESOURCE_RINGBUF:
   131			bpf_ringbuf_discard_proto.func((u64)(long)handle, 0, 0, 0, 0);
   132			break;
   133		case BPF_RESOURCE_DYNPTR_RINGBUF:
   134			bpf_ringbuf_discard_dynptr_proto.func((u64)(long)handle, 0, 0, 0, 0);
   135			break;
   136		case BPF_RESOURCE_SPIN_LOCK:
   137			bpf_spin_unlock_proto.func((u64)(long)handle, 0, 0, 0, 0);
   138			break;
   139		case BPF_RESOURCE_RES_LOCK:
   140			bpf_res_spin_unlock(handle);
   141			break;
   142		case BPF_RESOURCE_RES_LOCK_IRQ:
   143			bpf_res_spin_unlock_irqrestore(handle, flags);
   144			break;
   145		case BPF_RESOURCE_IRQ_FLAG:
   146			bpf_local_irq_restore(handle);
   147			break;
   148		case BPF_RESOURCE_IRQ_FLAG_LOCK:
   149			/* Restored together with the lock that saved them. */
   150			break;
   151		case BPF_RESOURCE_RCU:
   152			bpf_rcu_read_unlock();
   153			break;
   154		case BPF_RESOURCE_PREEMPT:
   155			bpf_preempt_enable();
   156			break;
   157		default:
   158			WARN_ON_ONCE(1);
   159		}
   160		if (res->rcu)
   161			rcu_read_unlock();
   162	}
   163	

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