linux-kernel - [ebiederm-user-namespace:coredump-vma-snapshot-fix 1/5] fs/binfmt_flat.c:121:36: error: incomplete definition of type 'struct coredump

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Date:   Wed, 9 Mar 2022 09:12:35 +0800
From:   kernel test robot <lkp@...el.com>
To:     "Eric W. Biederman" <ebiederm@...ssion.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org
Subject: [ebiederm-user-namespace:coredump-vma-snapshot-fix 1/5]
 fs/binfmt_flat.c:121:36: error: incomplete definition of 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-nommu_virt_defconfig (https://download.01.org/0day-ci/archive/20220309/202203090943.0a2uUHMd-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a2e9c68fcd4425fbce7380746e916966f00a39a0)
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
        # install riscv cross compiling tool for clang build
        # apt-get install binutils-riscv64-linux-gnu
        # 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=clang make.cross W=1 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 >>):

>> fs/binfmt_flat.c:121:36: error: incomplete definition of type 'struct coredump_params'
                   current->comm, current->pid, cprm->siginfo->si_signo);
                                                ~~~~^
   include/linux/printk.h:499:37: note: expanded from macro 'pr_warn'
           printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
                                              ^~~~~~~~~~~
   include/linux/printk.h:446:60: note: expanded from macro 'printk'
   #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
                                                              ^~~~~~~~~~~
   include/linux/printk.h:418:19: note: expanded from macro 'printk_index_wrap'
                   _p_func(_fmt, ##__VA_ARGS__);                           \
                                   ^~~~~~~~~~~
   include/linux/binfmts.h:11:8: note: forward declaration of 'struct coredump_params'
   struct coredump_params;
          ^
   1 error generated.


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