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    SubjectRe: [PATCH] prctl: Don't compile some of prctl functions when CRUI
    On Sat, 21 Apr 2018 04:37:41 +0800 kbuild test robot <lkp@intel.com> wrote:

    > I love your patch! Yet something to improve:
    >
    > [auto build test ERROR on linus/master]
    > [also build test ERROR on v4.17-rc1 next-20180420]
    > [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
    >
    > url: https://github.com/0day-ci/linux/commits/Sergey-Senozhatsky/prctl-Don-t-compile-some-of-prctl-functions-when-CRUI/20180421-040826
    > config: i386-tinyconfig (attached as .config)
    > compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
    > reproduce:
    > # save the attached .config to linux build tree
    > make ARCH=i386
    >
    > All errors (new ones prefixed by >>):
    >
    > kernel/sys.c: In function 'prctl_set_mm':
    > >> kernel/sys.c:2108:10: error: implicit declaration of function 'prctl_set_mm_exe_file'; did you mean 'set_mm_exe_file'? [-Werror=implicit-function-declaration]
    > return prctl_set_mm_exe_file(mm, (unsigned int)addr);
    > ^~~~~~~~~~~~~~~~~~~~~

    "prctl: don't compile some of prctl functions when CRUI disabled" was a
    fix against "prctl: remove non PR_SET_MM_MAP operations", and it
    appears that the base patch wasn't applied when this test was
    performed.

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