netdev - [net:master 16/16] net//ipv4/udp.c:1789:47: error: 'struct sk_buff' has no member named 'sp'; did you mean 'sk'?

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Date:   Wed, 26 Jul 2017 03:38:31 +0800
From:   kbuild test robot <fengguang.wu@...el.com>
To:     Paolo Abeni <pabeni@...hat.com>
Cc:     kbuild-all@...org, netdev@...r.kernel.org
Subject: [net:master 16/16] net//ipv4/udp.c:1789:47: error: 'struct sk_buff'
 has no member named 'sp'; did you mean 'sk'?

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git master
head:   dce4551cb2adb1ac9a30f8ab5299d614392b3cff
commit: dce4551cb2adb1ac9a30f8ab5299d614392b3cff [16/16] udp: preserve head state for IP_CMSG_PASSSEC
config: arm-at91_dt_defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout dce4551cb2adb1ac9a30f8ab5299d614392b3cff
        # save the attached .config to linux build tree
        make.cross ARCH=arm 

All errors (new ones prefixed by >>):

   In file included from include/uapi/linux/stddef.h:1:0,
                    from include/linux/stddef.h:4,
                    from include/uapi/linux/posix_types.h:4,
                    from include/uapi/linux/types.h:13,
                    from include/linux/types.h:5,
                    from include/linux/thread_info.h:10,
                    from include/asm-generic/current.h:4,
                    from ./arch/arm/include/generated/asm/current.h:1,
                    from include/linux/sched.h:11,
                    from include/linux/uaccess.h:4,
                    from net//ipv4/udp.c:82:
   net//ipv4/udp.c: In function '__udp_queue_rcv_skb':
>> net//ipv4/udp.c:1789:47: error: 'struct sk_buff' has no member named 'sp'; did you mean 'sk'?
     if (likely(IPCB(skb)->opt.optlen == 0 && !skb->sp))
                                                  ^
   include/linux/compiler.h:174:40: note: in definition of macro 'likely'
    # define likely(x) __builtin_expect(!!(x), 1)
                                           ^

vim +1789 net//ipv4/udp.c

  1772	
  1773	static int __udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
  1774	{
  1775		int rc;
  1776	
  1777		if (inet_sk(sk)->inet_daddr) {
  1778			sock_rps_save_rxhash(sk, skb);
  1779			sk_mark_napi_id(sk, skb);
  1780			sk_incoming_cpu_update(sk);
  1781		} else {
  1782			sk_mark_napi_id_once(sk, skb);
  1783		}
  1784	
  1785		/* At recvmsg() time we may access skb->dst or skb->sp depending on
  1786		 * the IP options and the cmsg flags, elsewhere can we clear all
  1787		 * pending head states while they are hot in the cache
  1788		 */
> 1789		if (likely(IPCB(skb)->opt.optlen == 0 && !skb->sp))
  1790			skb_release_head_state(skb);
  1791	
  1792		rc = __udp_enqueue_schedule_skb(sk, skb);
  1793		if (rc < 0) {
  1794			int is_udplite = IS_UDPLITE(sk);
  1795	
  1796			/* Note that an ENOMEM error is charged twice */
  1797			if (rc == -ENOMEM)
  1798				UDP_INC_STATS(sock_net(sk), UDP_MIB_RCVBUFERRORS,
  1799						is_udplite);
  1800			UDP_INC_STATS(sock_net(sk), UDP_MIB_INERRORS, is_udplite);
  1801			kfree_skb(skb);
  1802			trace_udp_fail_queue_rcv_skb(rc, sk);
  1803			return -1;
  1804		}
  1805	
  1806		return 0;
  1807	}
  1808	

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