linux-kernel - [ebiederm-user-namespace:coredump-vma-snapshot-fix 1/5] fs/binfmt_flat.c:121:50: error: invalid use of undefined type 'struct coredump

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Message-ID: <202203091120.1aKGFQ4H-lkp@intel.com>
Date:   Wed, 9 Mar 2022 11:56:14 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Eric W. Biederman" <ebiederm@...ssion.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [ebiederm-user-namespace:coredump-vma-snapshot-fix 1/5]
 fs/binfmt_flat.c:121:50: error: invalid use of undefined type 'struct
 coredump_params'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git coredump-vma-snapshot-fix
head:   390031c942116d4733310f0684beb8db19885fe6
commit: a99a3e2efaf1f4454eb5c9176f47e66de075b134 [1/5] coredump: Move definition of struct coredump_params into coredump.h
config: riscv-randconfig-r042-20220308 (https://download.01.org/0day-ci/archive/20220309/202203091120.1aKGFQ4H-lkp@intel.com/config)
compiler: riscv32-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
        # https://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git/commit/?id=a99a3e2efaf1f4454eb5c9176f47e66de075b134
        git remote add ebiederm-user-namespace https://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace.git
        git fetch --no-tags ebiederm-user-namespace coredump-vma-snapshot-fix
        git checkout a99a3e2efaf1f4454eb5c9176f47e66de075b134
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=riscv SHELL=/bin/bash

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/linux/kernel.h:29,
                    from fs/binfmt_flat.c:21:
   fs/binfmt_flat.c: In function 'flat_core_dump':
>> fs/binfmt_flat.c:121:50: error: invalid use of undefined type 'struct coredump_params'
     121 |                 current->comm, current->pid, cprm->siginfo->si_signo);
         |                                                  ^~
   include/linux/printk.h:418:33: note: in definition of macro 'printk_index_wrap'
     418 |                 _p_func(_fmt, ##__VA_ARGS__);                           \
         |                                 ^~~~~~~~~~~
   include/linux/printk.h:499:9: note: in expansion of macro 'printk'
     499 |         printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
         |         ^~~~~~
   fs/binfmt_flat.c:120:9: note: in expansion of macro 'pr_warn'
     120 |         pr_warn("Process %s:%d received signr %d and should have core dumped\n",
         |         ^~~~~~~
   At top level:
   fs/binfmt_flat.c:118:12: warning: 'flat_core_dump' defined but not used [-Wunused-function]
     118 | static int flat_core_dump(struct coredump_params *cprm)
         |            ^~~~~~~~~~~~~~


vim +121 fs/binfmt_flat.c

^1da177e4c3f415 Linus Torvalds   2005-04-16  111  
^1da177e4c3f415 Linus Torvalds   2005-04-16  112  /****************************************************************************/
^1da177e4c3f415 Linus Torvalds   2005-04-16  113  /*
^1da177e4c3f415 Linus Torvalds   2005-04-16  114   * Routine writes a core dump image in the current directory.
^1da177e4c3f415 Linus Torvalds   2005-04-16  115   * Currently only a stub-function.
^1da177e4c3f415 Linus Torvalds   2005-04-16  116   */
^1da177e4c3f415 Linus Torvalds   2005-04-16  117  
f6151dfea21496d Masami Hiramatsu 2009-12-17  118  static int flat_core_dump(struct coredump_params *cprm)
^1da177e4c3f415 Linus Torvalds   2005-04-16  119  {
4adbb6ac4b807e2 Nicolas Pitre    2016-07-24  120  	pr_warn("Process %s:%d received signr %d and should have core dumped\n",
13c3f50c914e6a5 Nicolas Pitre    2016-07-24 @121  		current->comm, current->pid, cprm->siginfo->si_signo);
13c3f50c914e6a5 Nicolas Pitre    2016-07-24  122  	return 1;
^1da177e4c3f415 Linus Torvalds   2005-04-16  123  }
^1da177e4c3f415 Linus Torvalds   2005-04-16  124  

:::::: The code at line 121 was first introduced by commit
:::::: 13c3f50c914e6a51d11e1aba4a85c2223e197e13 binfmt_flat: assorted cleanups

:::::: TO: Nicolas Pitre <nicolas.pitre@...aro.org>
:::::: CC: Greg Ungerer <gerg@...ux-m68k.org>

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