Hi Mike, I love your patch! Yet something to improve: [auto build test ERROR on miklos-vfs/overlayfs-next] [also build test ERROR on linus/master v5.7-rc7] [cannot apply to linux/master next-20200526] [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/Mike-Kravetz/ovl-provide-real_file-and-overlayfs-get_unmapped_area/20200528-080533 base: https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git overlayfs-next config: h8300-randconfig-r036-20200528 (attached as .config) compiler: h8300-linux-gcc (GCC) 9.3.0 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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=h8300 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp@xxxxxxxxx> All error/warnings (new ones prefixed by >>, old ones prefixed by <<): fs/overlayfs/file.c: In function 'ovl_get_unmapped_area': >> fs/overlayfs/file.c:768:14: error: 'struct mm_struct' has no member named 'get_unmapped_area' 768 | current->mm->get_unmapped_area)(realfile, | ^~ >> fs/overlayfs/file.c:770:1: warning: control reaches end of non-void function [-Wreturn-type] 770 | } | ^ vim +768 fs/overlayfs/file.c 760 761 static unsigned long ovl_get_unmapped_area(struct file *file, 762 unsigned long uaddr, unsigned long len, 763 unsigned long pgoff, unsigned long flags) 764 { 765 struct file *realfile = real_file(file); 766 767 return (realfile->f_op->get_unmapped_area ?: > 768 current->mm->get_unmapped_area)(realfile, 769 uaddr, len, pgoff, flags); > 770 } 771 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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