[cilium:pr/bpf-tproxy 8/8] include/net/request_sock.h:117:50: error: 'sock_pfree_ref' undeclared; did you mean 'sock_kfree_s'?

[cilium:pr/bpf-tproxy 8/8] include/net/request_sock.h:117:50: error: 'sock_pfree_ref' undeclared; did you mean 'sock_kfree_s'?

[kernel test robot]

tree:   https://github.com/cilium/linux.git pr/bpf-tproxy
head:   27d1eafb8d37f1b272a991077d3bd1bb312118a9
commit: 27d1eafb8d37f1b272a991077d3bd1bb312118a9 [8/8] bpf: Support SOCK_RCU_FREE sockets in bpf_sk_assign on egress
config: nios2-allnoconfig (https://download.01.org/0day-ci/archive/20260416/202604162149.Mbv9J6de-lkp@intel.com/config)
compiler: nios2-linux-gcc (GCC) 11.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260416/202604162149.Mbv9J6de-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/202604162149.Mbv9J6de-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/net/inet_sock.h:24,
                    from include/net/inet_connection_sock.h:21,
                    from include/linux/tcp.h:20,
                    from include/linux/ipv6.h:103,
                    from include/net/ipv6.h:12,
                    from include/linux/sunrpc/clnt.h:29,
                    from include/linux/nfs_fs.h:32,
                    from init/do_mounts.c:23:
   include/net/request_sock.h: In function 'skb_steal_sock':
>> include/net/request_sock.h:117:50: error: 'sock_pfree_ref' undeclared (first use in this function); did you mean 'sock_kfree_s'?
     117 |                               skb->destructor == sock_pfree_ref;
         |                                                  ^~~~~~~~~~~~~~
         |                                                  sock_kfree_s
   include/net/request_sock.h:117:50: note: each undeclared identifier is reported only once for each function it appears in


vim +117 include/net/request_sock.h

    86	
    87	/**
    88	 * skb_steal_sock - steal a socket from an sk_buff
    89	 * @skb: sk_buff to steal the socket from
    90	 * @refcounted: is set to true if the socket is reference-counted
    91	 * @prefetched: is set to true if the socket was assigned from bpf
    92	 */
    93	static inline struct sock *skb_steal_sock(struct sk_buff *skb,
    94						  bool *refcounted, bool *prefetched)
    95	{
    96		struct sock *sk = skb->sk;
    97	
    98		if (!sk) {
    99			*prefetched = false;
   100			*refcounted = false;
   101			return NULL;
   102		}
   103	
   104		*prefetched = skb_sk_is_prefetched(skb);
   105		if (*prefetched) {
   106	#if IS_ENABLED(CONFIG_SYN_COOKIES)
   107			if (sk->sk_state == TCP_NEW_SYN_RECV && inet_reqsk(sk)->syncookie) {
   108				struct request_sock *req = inet_reqsk(sk);
   109	
   110				*refcounted = false;
   111				sk = req->rsk_listener;
   112				req->rsk_listener = NULL;
   113				return sk;
   114			}
   115	#endif
   116			*refcounted = sk_is_refcounted(sk) ||
 > 117				      skb->destructor == sock_pfree_ref;
   118		} else {
   119			*refcounted = true;
   120		}
   121	
   122		skb->destructor = NULL;
   123		skb->sk = NULL;
   124		return sk;
   125	}
   126	

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