linux-kernel - [ti:ti-rt-linux-5.10.y 7473/9302] include/net/sock.h:2523:43: error: 'SCM

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Message-ID: <202108271618.ywP6xYF5-lkp@intel.com>
Date:   Fri, 27 Aug 2021 16:25:26 +0800
From:   kernel test robot <lkp@...el.com>
To:     WingMan Kwok <w-kwok2@...com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Vignesh Raghavendra <vigneshr@...com>,
        Murali Karicheri <m-karicheri2@...com>,
        Lokesh Vutla <lokeshvutla@...com>,
        Kishon Vijay Abraham I <kishon@...com>
Subject: [ti:ti-rt-linux-5.10.y 7473/9302] include/net/sock.h:2523:43: error:
 'SCM_REDUNDANT' undeclared

Hi WingMan,

FYI, the error/warning still remains.

tree:   git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git ti-rt-linux-5.10.y
head:   85bd616e0f43a20e3c5a0290bcc75e876befcf87
commit: e355bf097bb11257afeadf6665e51f224eeb93a7 [7473/9302] net: packet: Pass on redundant net info in packet_recvmsg
config: alpha-defconfig (attached as .config)
compiler: alpha-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git remote add ti git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git
        git fetch --no-tags ti ti-rt-linux-5.10.y
        git checkout e355bf097bb11257afeadf6665e51f224eeb93a7
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=alpha SHELL=/bin/bash net/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   In file included from include/net/cls_cgroup.h:14,
                    from net/socket.c:95:
   include/net/sock.h: In function 'sock_recv_redundant_info':
>> include/net/sock.h:2523:43: error: 'SCM_REDUNDANT' undeclared (first use in this function)
    2523 |                 put_cmsg(msg, SOL_SOCKET, SCM_REDUNDANT, sizeof(*sred), sred);
         |                                           ^~~~~~~~~~~~~
   include/net/sock.h:2523:43: note: each undeclared identifier is reported only once for each function it appears in
   net/socket.c: In function '__sys_getsockopt':
   net/socket.c:2155:13: warning: variable 'max_optlen' set but not used [-Wunused-but-set-variable]
    2155 |         int max_optlen;
         |             ^~~~~~~~~~
--
   In file included from net/sysctl_net.c:20:
   include/net/sock.h: In function 'sock_recv_redundant_info':
>> include/net/sock.h:2523:43: error: 'SCM_REDUNDANT' undeclared (first use in this function)
    2523 |                 put_cmsg(msg, SOL_SOCKET, SCM_REDUNDANT, sizeof(*sred), sred);
         |                                           ^~~~~~~~~~~~~
   include/net/sock.h:2523:43: note: each undeclared identifier is reported only once for each function it appears in
--
   In file included from include/linux/mroute_base.h:8,
                    from include/linux/mroute.h:10,
                    from net/ipv4/route.c:83:
   include/net/sock.h: In function 'sock_recv_redundant_info':
>> include/net/sock.h:2523:43: error: 'SCM_REDUNDANT' undeclared (first use in this function)
    2523 |                 put_cmsg(msg, SOL_SOCKET, SCM_REDUNDANT, sizeof(*sred), sred);
         |                                           ^~~~~~~~~~~~~
   include/net/sock.h:2523:43: note: each undeclared identifier is reported only once for each function it appears in
   net/ipv4/route.c: In function 'ip_rt_send_redirect':
   net/ipv4/route.c:885:13: warning: variable 'log_martians' set but not used [-Wunused-but-set-variable]
     885 |         int log_martians;
         |             ^~~~~~~~~~~~


vim +/SCM_REDUNDANT +2523 include/net/sock.h

  2514	
  2515	DECLARE_STATIC_KEY_FALSE(tcp_rx_skb_cache_key);
  2516	static inline void sock_recv_redundant_info(struct msghdr *msg, struct sock *sk,
  2517						    struct sk_buff *skb)
  2518	{
  2519		struct skb_redundant_info *sred;
  2520	
  2521		sred = skb_redinfo(skb);
  2522		if (sred->lsdu_size)
> 2523			put_cmsg(msg, SOL_SOCKET, SCM_REDUNDANT, sizeof(*sred), sred);
  2524	}
  2525	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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