Hi John, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.4] [cannot apply to mmotm/master rdma/for-next linuxtv-media/master next-20191129] [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/John-Hubbard/mm-gup-track-dma-pinned-pages-FOLL_PIN/20191122-092349 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git c74386d50fbaf4a54fd3fe560f1abc709c0cff4b config: sh-allmodconfig (attached as .config) compiler: sh4-linux-gcc (GCC) 7.4.0 reproduce: 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 GCC_VERSION=7.4.0 make.cross ARCH=sh If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): mm/gup.c: In function 'pin_user_pages_remote': >> mm/gup.c:2684:9: error: implicit declaration of function '__get_user_pages_remote'; did you mean 'get_user_pages_remote'? [-Werror=implicit-function-declaration] return __get_user_pages_remote(tsk, mm, start, nr_pages, gup_flags, ^~~~~~~~~~~~~~~~~~~~~~~ get_user_pages_remote cc1: some warnings being treated as errors vim +2684 mm/gup.c 2660 2661 /** 2662 * pin_user_pages_remote() - pin pages of a remote process (task != current) 2663 * 2664 * Nearly the same as get_user_pages_remote(), except that FOLL_PIN is set. See 2665 * get_user_pages_remote() for documentation on the function arguments, because 2666 * the arguments here are identical. 2667 * 2668 * FOLL_PIN means that the pages must be released via unpin_user_page(). Please 2669 * see Documentation/vm/pin_user_pages.rst for details. 2670 * 2671 * This is intended for Case 1 (DIO) in Documentation/vm/pin_user_pages.rst. It 2672 * is NOT intended for Case 2 (RDMA: long-term pins). 2673 */ 2674 long pin_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm, 2675 unsigned long start, unsigned long nr_pages, 2676 unsigned int gup_flags, struct page **pages, 2677 struct vm_area_struct **vmas, int *locked) 2678 { 2679 /* FOLL_GET and FOLL_PIN are mutually exclusive. */ 2680 if (WARN_ON_ONCE(gup_flags & FOLL_GET)) 2681 return -EINVAL; 2682 2683 gup_flags |= FOLL_PIN; > 2684 return __get_user_pages_remote(tsk, mm, start, nr_pages, gup_flags, 2685 pages, vmas, locked); 2686 } 2687 EXPORT_SYMBOL(pin_user_pages_remote); 2688 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation
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