[PATCH v6 05/10] proc: add helpers to set and get proc hidepid and gid mount options

[kbuild test robot]

Hi Alexey,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linux/master]
[also build test ERROR on lwn/docs-next linus/master v5.5-rc3 next-20191220]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Alexey-Gladkov/proc-modernize-proc-to-support-multiple-private-instances/20191226-060818
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 1522d9da40bdfe502c91163e6d769332897201fa
config: i386-tinyconfig (attached as .config)
compiler: gcc-7 (Debian 7.5.0-3) 7.5.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp at intel.com>

All error/warnings (new ones prefixed by >>):

   ld: init/do_mounts.o: in function `proc_fs_pid_gid':
>> do_mounts.c:(.text+0x5): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: arch/x86/kernel/setup.o: in function `proc_fs_pid_gid':
   setup.c:(.text+0x3): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: arch/x86/kernel/e820.o: in function `proc_fs_pid_gid':
   e820.c:(.text+0xb1): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: arch/x86/kernel/fpu/xstate.o: in function `proc_fs_pid_gid':
   xstate.c:(.text+0x36): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: arch/x86/kernel/reboot.o: in function `proc_fs_pid_gid':
   reboot.c:(.text+0x1): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: arch/x86/mm/init_32.o: in function `proc_fs_pid_gid':
   init_32.c:(.text+0x0): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: arch/x86/mm/fault.o: in function `proc_fs_pid_gid':
   fault.c:(.text+0x908): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: arch/x86/mm/ioremap.o: in function `proc_fs_pid_gid':
   ioremap.c:(.text+0x277): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/fork.o: in function `proc_fs_pid_gid':
   fork.c:(.text+0x539): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/exec_domain.o: in function `proc_fs_pid_gid':
   exec_domain.c:(.text+0x0): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/cpu.o: in function `proc_fs_pid_gid':
   cpu.c:(.text+0x104): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/exit.o: in function `proc_fs_pid_gid':
   exit.c:(.text+0x22c): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/resource.o: in function `proc_fs_pid_gid':
   resource.c:(.text+0x362): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/sysctl.o: in function `proc_fs_pid_gid':
   sysctl.c:(.text+0x0): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/signal.o: in function `proc_fs_pid_gid':
   signal.c:(.text+0x55b): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/sched/core.o: in function `proc_fs_pid_gid':
   core.c:(.text+0x2e4): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/sched/loadavg.o: in function `proc_fs_pid_gid':
   loadavg.c:(.text+0x0): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/sched/clock.o: in function `proc_fs_pid_gid':
   clock.c:(.text+0x0): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/sched/cputime.o: in function `proc_fs_pid_gid':
   cputime.c:(.text+0x0): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/sched/idle.o: in function `proc_fs_pid_gid':
   idle.c:(.text+0x2c): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/sched/fair.o: in function `proc_fs_pid_gid':
   fair.c:(.text+0x8cb): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/sched/rt.o: in function `proc_fs_pid_gid':
   rt.c:(.text+0x703): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/sched/deadline.o: in function `proc_fs_pid_gid':
   deadline.c:(.text+0xb02): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/sched/wait.o: in function `proc_fs_pid_gid':
   wait.c:(.text+0x15c): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/sched/wait_bit.o: in function `proc_fs_pid_gid':
   wait_bit.c:(.text+0x9d): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/sched/swait.o: in function `proc_fs_pid_gid':
   swait.c:(.text+0x4): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/sched/completion.o: in function `proc_fs_pid_gid':
   completion.c:(.text+0x4): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/time/timer_list.o: in function `proc_fs_pid_gid':
   timer_list.c:(.text+0x12): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: kernel/dma.o: in function `proc_fs_pid_gid':
   dma.c:(.text+0x0): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: mm/vmstat.o: in function `proc_fs_pid_gid':
   vmstat.c:(.text+0x0): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: mm/slab_common.o: in function `proc_fs_pid_gid':
   slab_common.c:(.text+0x0): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: mm/vmalloc.o: in function `proc_fs_pid_gid':
   vmalloc.c:(.text+0x4fd): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: fs/filesystems.o: in function `proc_fs_pid_gid':
   filesystems.c:(.text+0x36): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
   ld: drivers/char/misc.o: in function `proc_fs_pid_gid':
   misc.c:(.text+0xc4): multiple definition of `proc_fs_pid_gid'; init/main.o:main.c:(.text+0x19): first defined here
--
   In file included from init/main.c:18:0:
>> include/linux/proc_fs.h:138:47: warning: 'struct proc_info_fs' declared inside parameter list will not be visible outside of this definition or declaration
    static inline void proc_fs_set_pid_gid(struct proc_info_fs *fs_info, kgid_t gid)
                                                  ^~~~~~~~~~~~

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0-DAY kernel test infrastructure                 Open Source Technology Center
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