[josef-btrfs:inet-rework 1/6] net/ipv4/inet_connection_sock.c:45:38: note: in expansion of macro 'sk_v6_rcv_saddr'

[kbuild test robot <fengguang.wu@xxxxxxxxx>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-next.git inet-rework
head:   749825bc60f7224225ced1dbed77d3cc2b0bd72f
commit: a36b30653769d1e20ff0df41533a2766453ced1a [1/6] inet: collapse ipv4/v6 rcv_saddr_equal functions into one
config: cris-etrax-100lx_v2_defconfig (attached as .config)
compiler: cris-linux-gcc (GCC) 6.2.0
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout a36b30653769d1e20ff0df41533a2766453ced1a
        # save the attached .config to linux build tree
        make.cross ARCH=cris 

All error/warnings (new ones prefixed by >>):

   In file included from include/net/inet_sock.h:27:0,
                    from include/net/inet_connection_sock.h:23,
                    from net/ipv4/inet_connection_sock.c:19:
   net/ipv4/inet_connection_sock.c: In function 'ipv6_rcv_saddr_equal':
>> include/net/sock.h:339:36: error: 'const struct sock_common' has no member named 'skc_v6_rcv_saddr'; did you mean 'skc_rcv_saddr'?
    #define sk_v6_rcv_saddr __sk_common.skc_v6_rcv_saddr
                                       ^
>> net/ipv4/inet_connection_sock.c:45:38: note: in expansion of macro 'sk_v6_rcv_saddr'
     int addr_type = ipv6_addr_type(&sk->sk_v6_rcv_saddr);
                                         ^~~~~~~~~~~~~~~
>> include/net/sock.h:339:36: error: 'const struct sock_common' has no member named 'skc_v6_rcv_saddr'; did you mean 'skc_rcv_saddr'?
    #define sk_v6_rcv_saddr __sk_common.skc_v6_rcv_saddr
                                       ^
   net/ipv4/inet_connection_sock.c:71:27: note: in expansion of macro 'sk_v6_rcv_saddr'
         ipv6_addr_equal(&sk->sk_v6_rcv_saddr, sk2_rcv_saddr6))
                              ^~~~~~~~~~~~~~~

vim +/sk_v6_rcv_saddr +45 net/ipv4/inet_connection_sock.c

    13	 *		2 of the License, or(at your option) any later version.
    14	 */
    15	
    16	#include <linux/module.h>
    17	#include <linux/jhash.h>
    18	
  > 19	#include <net/inet_connection_sock.h>
    20	#include <net/inet_hashtables.h>
    21	#include <net/inet_timewait_sock.h>
    22	#include <net/ip.h>
    23	#include <net/route.h>
    24	#include <net/tcp_states.h>
    25	#include <net/xfrm.h>
    26	#include <net/tcp.h>
    27	#include <net/sock_reuseport.h>
    28	
    29	#ifdef INET_CSK_DEBUG
    30	const char inet_csk_timer_bug_msg[] = "inet_csk BUG: unknown timer value\n";
    31	EXPORT_SYMBOL(inet_csk_timer_bug_msg);
    32	#endif
    33	
    34	/* match_wildcard == true:  IPV6_ADDR_ANY equals to any IPv6 addresses if IPv6
    35	 *                          only, and any IPv4 addresses if not IPv6 only
    36	 * match_wildcard == false: addresses must be exactly the same, i.e.
    37	 *                          IPV6_ADDR_ANY only equals to IPV6_ADDR_ANY,
    38	 *                          and 0.0.0.0 equals to 0.0.0.0 only
    39	 */
    40	static int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2,
    41					bool match_wildcard)
    42	{
    43		const struct in6_addr *sk2_rcv_saddr6 = inet6_rcv_saddr(sk2);
    44		int sk2_ipv6only = inet_v6_ipv6only(sk2);
  > 45		int addr_type = ipv6_addr_type(&sk->sk_v6_rcv_saddr);
    46		int addr_type2 = sk2_rcv_saddr6 ? ipv6_addr_type(sk2_rcv_saddr6) : IPV6_ADDR_MAPPED;
    47	
    48		/* if both are mapped, treat as IPv4 */

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