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Message-ID: <201706230117.7xelzHWK%fengguang.wu@intel.com>
Date:   Fri, 23 Jun 2017 01:50:13 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Wei Wang <tracywwnj@...il.com>
Cc:     kbuild-all@...org, David Miller <davem@...emloft.net>,
        netdev@...r.kernel.org,
        Subash Abhinov Kasiviswanathan <subashab@...eaurora.org>,
        Maciej Żenczykowski <maze@...gle.com>,
        Wei Wang <weiwan@...gle.com>
Subject: Re: [PATCH net] udp: ipv6: reset daddr and dport in sk if connect()
 fails

Hi Wei,

[auto build test ERROR on net/master]

url:    https://github.com/0day-ci/linux/commits/Wei-Wang/udp-ipv6-reset-daddr-and-dport-in-sk-if-connect-fails/20170623-011149
config: alpha-allyesconfig (attached as .config)
compiler: alpha-linux-gnu-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
        # save the attached .config to linux build tree
        make.cross ARCH=alpha 

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

   net//ipv6/datagram.c: In function '__ip6_datagram_connect':
   net//ipv6/datagram.c:257:30: error: expected ')' before 'sizeof'
      memset(&sk->sk_v6_daddr, 0 sizeof(sk->sk_v6_daddr);
                                 ^~~~~~
   In file included from include/linux/string.h:18:0,
                    from include/linux/bitmap.h:8,
                    from include/linux/cpumask.h:11,
                    from include/linux/interrupt.h:9,
                    from net//ipv6/datagram.c:18:
>> arch/alpha/include/asm/string.h:45:16: error: too few arguments to function '__memset'
    #define memset __memset
                   ^
>> net//ipv6/datagram.c:257:3: note: in expansion of macro 'memset'
      memset(&sk->sk_v6_daddr, 0 sizeof(sk->sk_v6_daddr);
      ^~~~~~
   arch/alpha/include/asm/string.h:32:21: note: declared here
    extern inline void *__memset(void *s, int c, size_t n)
                        ^~~~~~~~
   net//ipv6/datagram.c:260:2: error: expected ';' before '}' token
     }
     ^
--
   net/ipv6/datagram.c: In function '__ip6_datagram_connect':
   net/ipv6/datagram.c:257:30: error: expected ')' before 'sizeof'
      memset(&sk->sk_v6_daddr, 0 sizeof(sk->sk_v6_daddr);
                                 ^~~~~~
   In file included from include/linux/string.h:18:0,
                    from include/linux/bitmap.h:8,
                    from include/linux/cpumask.h:11,
                    from include/linux/interrupt.h:9,
                    from net/ipv6/datagram.c:18:
>> arch/alpha/include/asm/string.h:45:16: error: too few arguments to function '__memset'
    #define memset __memset
                   ^
   net/ipv6/datagram.c:257:3: note: in expansion of macro 'memset'
      memset(&sk->sk_v6_daddr, 0 sizeof(sk->sk_v6_daddr);
      ^~~~~~
   arch/alpha/include/asm/string.h:32:21: note: declared here
    extern inline void *__memset(void *s, int c, size_t n)
                        ^~~~~~~~
   net/ipv6/datagram.c:260:2: error: expected ';' before '}' token
     }
     ^

vim +/__memset +45 arch/alpha/include/asm/string.h

a47e5bb5 arch/alpha/include/asm/string.h Richard Henderson 2013-07-11  29  /* For gcc 3.x, we cannot have the inline function named "memset" because
a47e5bb5 arch/alpha/include/asm/string.h Richard Henderson 2013-07-11  30     the __builtin_memset will attempt to resolve to the inline as well,
a47e5bb5 arch/alpha/include/asm/string.h Richard Henderson 2013-07-11  31     leading to a "sorry" about unimplemented recursive inlining.  */
a47e5bb5 arch/alpha/include/asm/string.h Richard Henderson 2013-07-11  32  extern inline void *__memset(void *s, int c, size_t n)
a47e5bb5 arch/alpha/include/asm/string.h Richard Henderson 2013-07-11  33  {
a47e5bb5 arch/alpha/include/asm/string.h Richard Henderson 2013-07-11  34  	if (__builtin_constant_p(c)) {
a47e5bb5 arch/alpha/include/asm/string.h Richard Henderson 2013-07-11  35  		if (__builtin_constant_p(n)) {
a47e5bb5 arch/alpha/include/asm/string.h Richard Henderson 2013-07-11  36  			return __builtin_memset(s, c, n);
a47e5bb5 arch/alpha/include/asm/string.h Richard Henderson 2013-07-11  37  		} else {
a47e5bb5 arch/alpha/include/asm/string.h Richard Henderson 2013-07-11  38  			unsigned long c8 = (c & 0xff) * 0x0101010101010101UL;
a47e5bb5 arch/alpha/include/asm/string.h Richard Henderson 2013-07-11  39  			return __constant_c_memset(s, c8, n);
a47e5bb5 arch/alpha/include/asm/string.h Richard Henderson 2013-07-11  40  		}
a47e5bb5 arch/alpha/include/asm/string.h Richard Henderson 2013-07-11  41  	}
a47e5bb5 arch/alpha/include/asm/string.h Richard Henderson 2013-07-11  42  	return ___memset(s, c, n);
a47e5bb5 arch/alpha/include/asm/string.h Richard Henderson 2013-07-11  43  }
a47e5bb5 arch/alpha/include/asm/string.h Richard Henderson 2013-07-11  44  
a47e5bb5 arch/alpha/include/asm/string.h Richard Henderson 2013-07-11 @45  #define memset __memset
^1da177e include/asm-alpha/string.h      Linus Torvalds    2005-04-16  46  
^1da177e include/asm-alpha/string.h      Linus Torvalds    2005-04-16  47  #define __HAVE_ARCH_STRCPY
^1da177e include/asm-alpha/string.h      Linus Torvalds    2005-04-16  48  extern char * strcpy(char *,const char *);
^1da177e include/asm-alpha/string.h      Linus Torvalds    2005-04-16  49  #define __HAVE_ARCH_STRNCPY
^1da177e include/asm-alpha/string.h      Linus Torvalds    2005-04-16  50  extern char * strncpy(char *, const char *, size_t);
^1da177e include/asm-alpha/string.h      Linus Torvalds    2005-04-16  51  #define __HAVE_ARCH_STRCAT
^1da177e include/asm-alpha/string.h      Linus Torvalds    2005-04-16  52  extern char * strcat(char *, const char *);
^1da177e include/asm-alpha/string.h      Linus Torvalds    2005-04-16  53  #define __HAVE_ARCH_STRNCAT

:::::: The code at line 45 was first introduced by commit
:::::: a47e5bb5764f029f989a182b0dd2d4cce69f8b14 alpha: Eliminate compiler warning from memset macro

:::::: TO: Richard Henderson <rth@...ddle.net>
:::::: CC: Matt Turner <mattst88@...il.com>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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