linux-kernel - Re: [PATCH 3/3] ptrace,syscall_user_dispatch: add a getter/setter for sud configuration

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Date:   Thu, 19 Jan 2023 07:43:25 +0800
From:   kernel test robot <lkp@...el.com>
To:     Gregory Price <gourry.memverge@...il.com>,
        linux-kernel@...r.kernel.org
Cc:     oe-kbuild-all@...ts.linux.dev, linux-fsdevel@...r.kernel.org,
        linux-doc@...r.kernel.org, linux-kselftest@...r.kernel.org,
        krisman@...labora.com, tglx@...utronix.de, luto@...nel.org,
        oleg@...hat.com, ebiederm@...ssion.com, akpm@...ux-foundation.org,
        adobriyan@...il.com, corbet@....net, shuah@...nel.org,
        Gregory Price <gregory.price@...verge.com>
Subject: Re: [PATCH 3/3] ptrace,syscall_user_dispatch: add a getter/setter
 for sud configuration

Hi Gregory,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.2-rc4 next-20230118]
[cannot apply to tip/core/entry]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Gregory-Price/ptrace-syscall_user_dispatch-Implement-Syscall-User-Dispatch-Suspension/20230119-041259
patch link:    https://lore.kernel.org/r/20230118201055.147228-4-gregory.price%40memverge.com
patch subject: [PATCH 3/3] ptrace,syscall_user_dispatch: add a getter/setter for sud configuration
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20230119/202301190722.ouyr6mLZ-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 12.1.0
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://github.com/intel-lab-lkp/linux/commit/bd6833b41ed48c444c09346f695efe229deec2e9
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Gregory-Price/ptrace-syscall_user_dispatch-Implement-Syscall-User-Dispatch-Suspension/20230119-041259
        git checkout bd6833b41ed48c444c09346f695efe229deec2e9
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k prepare

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

All warnings (new ones prefixed by >>):

   In file included from include/linux/sched.h:31,
                    from arch/m68k/kernel/asm-offsets.c:15:
>> include/linux/syscall_user_dispatch.h:45:5: warning: no previous prototype for 'syscall_user_dispatch_get_config' [-Wmissing-prototypes]
      45 | int syscall_user_dispatch_get_config(struct task_struct *task, unsigned long size,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/syscall_user_dispatch.h:51:5: warning: no previous prototype for 'syscall_user_dispatch_set_config' [-Wmissing-prototypes]
      51 | int syscall_user_dispatch_set_config(struct task_struct *task, unsigned long size,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
   scripts/genksyms/parse.y: warning: 9 shift/reduce conflicts [-Wconflicts-sr]
   scripts/genksyms/parse.y: warning: 5 reduce/reduce conflicts [-Wconflicts-rr]
   scripts/genksyms/parse.y: note: rerun with option '-Wcounterexamples' to generate conflict counterexamples
   In file included from include/linux/sched.h:31,
                    from arch/m68k/kernel/asm-offsets.c:15:
>> include/linux/syscall_user_dispatch.h:45:5: warning: no previous prototype for 'syscall_user_dispatch_get_config' [-Wmissing-prototypes]
      45 | int syscall_user_dispatch_get_config(struct task_struct *task, unsigned long size,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> include/linux/syscall_user_dispatch.h:51:5: warning: no previous prototype for 'syscall_user_dispatch_set_config' [-Wmissing-prototypes]
      51 | int syscall_user_dispatch_set_config(struct task_struct *task, unsigned long size,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/syscall_user_dispatch_get_config +45 include/linux/syscall_user_dispatch.h

    44	
  > 45	int syscall_user_dispatch_get_config(struct task_struct *task, unsigned long size,
    46		void __user *data)
    47	{
    48		return -EINVAL;
    49	}
    50	
  > 51	int syscall_user_dispatch_set_config(struct task_struct *task, unsigned long size,
    52		void __user *data)
    53	{
    54		return -EINVAL;
    55	}
    56	

-- 
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https://github.com/intel/lkp-tests