[ti:ti-linux-5.4.y 9521/13425] net/socket.c:847:5: error: 'SCM_RED_TIMESTAMPING' undeclared

[kernel test robot <lkp@intel.com>]

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Hi Grygorii,

First bad commit (maybe != root cause):

tree:   git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git ti-linux-5.4.y
head:   ca222ae72ea37d74141ed53deaa0a07263ef34e8
commit: 93fac9fa368d4c49b62745b6f324d019fb42ecc4 [9521/13425] HACK: scripts: headers_install: fix allmodconfig builds
config: parisc-defconfig (attached as .config)
compiler: hppa-linux-gcc (GCC) 9.3.0
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-linux-5.4.y
        git checkout 93fac9fa368d4c49b62745b6f324d019fb42ecc4
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc 

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

All errors (new ones prefixed by >>):

   In file included from include/linux/mm.h:99,
                    from net/socket.c:55:
   include/asm-generic/pgtable.h: In function 'pte_clear_not_present_full':
   arch/parisc/include/asm/pgtable.h:91:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable]
      91 |   pte_t old_pte;     \
         |         ^~~~~~~
   arch/parisc/include/asm/pgtable.h:316:34: note: in expansion of macro 'set_pte_at'
     316 | #define pte_clear(mm, addr, xp)  set_pte_at(mm, addr, xp, __pte(0))
         |                                  ^~~~~~~~~~
   include/asm-generic/pgtable.h:201:2: note: in expansion of macro 'pte_clear'
     201 |  pte_clear(mm, address, ptep);
         |  ^~~~~~~~~
   include/asm-generic/pgtable.h: In function '__ptep_modify_prot_commit':
   arch/parisc/include/asm/pgtable.h:91:9: warning: variable 'old_pte' set but not used [-Wunused-but-set-variable]
      91 |   pte_t old_pte;     \
         |         ^~~~~~~
   include/asm-generic/pgtable.h:629:2: note: in expansion of macro 'set_pte_at'
     629 |  set_pte_at(vma->vm_mm, addr, ptep, pte);
         |  ^~~~~~~~~~
   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:2461:29: error: 'SCM_REDUNDANT' undeclared (first use in this function)
    2461 |   put_cmsg(msg, SOL_SOCKET, SCM_REDUNDANT, sizeof(*sred), sred);
         |                             ^~~~~~~~~~~~~
   include/net/sock.h:2461:29: note: each undeclared identifier is reported only once for each function it appears in
   net/socket.c: In function '__sock_recv_redinfo_timestamp':
>> net/socket.c:847:5: error: 'SCM_RED_TIMESTAMPING' undeclared (first use in this function)
     847 |     SCM_RED_TIMESTAMPING, sizeof(tss), &tss);
         |     ^~~~~~~~~~~~~~~~~~~~
   net/socket.c: In function '__sys_getsockopt':
   net/socket.c:2132:6: warning: variable 'max_optlen' set but not used [-Wunused-but-set-variable]
    2132 |  int max_optlen;
         |      ^~~~~~~~~~


vim +/SCM_RED_TIMESTAMPING +847 net/socket.c

7c81fd8bfbaa97 Arnaldo Carvalho de Melo 2007-03-10  831  
70e28ef2c9afeb WingMan Kwok             2018-03-02  832  void __sock_recv_redinfo_timestamp(struct msghdr *msg, struct sock *sk,
70e28ef2c9afeb WingMan Kwok             2018-03-02  833  				   struct sk_buff *skb)
70e28ef2c9afeb WingMan Kwok             2018-03-02  834  {
70e28ef2c9afeb WingMan Kwok             2018-03-02  835  	struct scm_timestamping tss;
70e28ef2c9afeb WingMan Kwok             2018-03-02  836  	int empty = 1;
70e28ef2c9afeb WingMan Kwok             2018-03-02  837  	struct skb_shared_hwtstamps *red_shhwtstamps =
70e28ef2c9afeb WingMan Kwok             2018-03-02  838  		skb_redinfo_hwtstamps(skb);
70e28ef2c9afeb WingMan Kwok             2018-03-02  839  
70e28ef2c9afeb WingMan Kwok             2018-03-02  840  	if (red_shhwtstamps &&
70e28ef2c9afeb WingMan Kwok             2018-03-02  841  	    (sk->sk_tsflags & SOF_TIMESTAMPING_RAW_HARDWARE) &&
70e28ef2c9afeb WingMan Kwok             2018-03-02  842  	    ktime_to_timespec_cond(red_shhwtstamps->hwtstamp, tss.ts + 2))
70e28ef2c9afeb WingMan Kwok             2018-03-02  843  		empty = 0;
70e28ef2c9afeb WingMan Kwok             2018-03-02  844  
70e28ef2c9afeb WingMan Kwok             2018-03-02  845  	if (!empty)
70e28ef2c9afeb WingMan Kwok             2018-03-02  846  		put_cmsg(msg, SOL_SOCKET,
70e28ef2c9afeb WingMan Kwok             2018-03-02 @847  			 SCM_RED_TIMESTAMPING, sizeof(tss), &tss);
70e28ef2c9afeb WingMan Kwok             2018-03-02  848  }
70e28ef2c9afeb WingMan Kwok             2018-03-02  849  EXPORT_SYMBOL_GPL(__sock_recv_redinfo_timestamp);
70e28ef2c9afeb WingMan Kwok             2018-03-02  850  

:::::: The code at line 847 was first introduced by commit
:::::: 70e28ef2c9afebab74651ba7aca5895ca4d922d4 net: socket: forward extra timestamp of received skb to user space

:::::: TO: WingMan Kwok <w-kwok2@ti.com>
:::::: CC: Lokesh Vutla <lokeshvutla@ti.com>

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

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