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    SubjectRe: [PATCH 4/4] mm: vmalloc: convert vread() to vread_iter()
    Hi Lorenzo,

    Thank you for the patch! Perhaps something to improve:

    [auto build test WARNING on akpm-mm/mm-everything]
    [also build test WARNING on linus/master v6.3-rc2 next-20230317]
    [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/Lorenzo-Stoakes/fs-proc-kcore-Avoid-bounce-buffer-for-ktext-data/20230319-082147
    base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
    patch link: https://lore.kernel.org/r/119871ea9507eac7be5d91db38acdb03981e049e.1679183626.git.lstoakes%40gmail.com
    patch subject: [PATCH 4/4] mm: vmalloc: convert vread() to vread_iter()
    config: sh-randconfig-r013-20230319 (https://download.01.org/0day-ci/archive/20230319/202303191017.vsaaDpyw-lkp@intel.com/config)
    compiler: sh4-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/a28f374d35bd294a529fcba0b69c8b0e2b66fa6c
    git remote add linux-review https://github.com/intel-lab-lkp/linux
    git fetch --no-tags linux-review Lorenzo-Stoakes/fs-proc-kcore-Avoid-bounce-buffer-for-ktext-data/20230319-082147
    git checkout a28f374d35bd294a529fcba0b69c8b0e2b66fa6c
    # save the config file
    mkdir build_dir && cp config build_dir/.config
    COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sh olddefconfig
    COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sh SHELL=/bin/bash

    If you fix the issue, kindly add following tag where applicable
    | Reported-by: kernel test robot <lkp@intel.com>
    | Link: https://lore.kernel.org/oe-kbuild-all/202303191017.vsaaDpyw-lkp@intel.com/

    All warnings (new ones prefixed by >>):

    >> mm/nommu.c:201:6: warning: no previous prototype for 'vread' [-Wmissing-prototypes]
    201 | long vread(char *buf, char *addr, unsigned long count)
    | ^~~~~


    vim +/vread +201 mm/nommu.c

    ^1da177e4c3f41 Linus Torvalds 2005-04-16 200
    ^1da177e4c3f41 Linus Torvalds 2005-04-16 @201 long vread(char *buf, char *addr, unsigned long count)
    ^1da177e4c3f41 Linus Torvalds 2005-04-16 202 {
    9bde916bc73255 Chen Gang 2013-07-03 203 /* Don't allow overflow */
    9bde916bc73255 Chen Gang 2013-07-03 204 if ((unsigned long) buf + count < count)
    9bde916bc73255 Chen Gang 2013-07-03 205 count = -(unsigned long) buf;
    9bde916bc73255 Chen Gang 2013-07-03 206
    ^1da177e4c3f41 Linus Torvalds 2005-04-16 207 memcpy(buf, addr, count);
    ^1da177e4c3f41 Linus Torvalds 2005-04-16 208 return count;
    ^1da177e4c3f41 Linus Torvalds 2005-04-16 209 }
    ^1da177e4c3f41 Linus Torvalds 2005-04-16 210

    --
    0-DAY CI Kernel Test Service
    https://github.com/intel/lkp-tests

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