Hi John, Thank you for the patch! Yet something to improve: [auto build test ERROR on rdma/for-next] [cannot apply to v5.4 next-20191122] [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/pin_user_pages-reduced-risk-series-for-Linux-5-5/20191125-125637 base: https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next config: arm-randconfig-a001-20191125 (attached as .config) compiler: arm-linux-gnueabi-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=arm If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): mm/gup.o: In function `pin_user_pages_remote': >> mm/gup.c:2528: undefined reference to `get_user_pages_remote' vim +2528 mm/gup.c 2507 2508 /** 2509 * pin_user_pages_remote() - pin pages of a remote process (task != current) 2510 * 2511 * For now, this is a placeholder function, until various call sites are 2512 * converted to use the correct get_user_pages*() or pin_user_pages*() API. So, 2513 * this is identical to get_user_pages_remote(). 2514 * 2515 * This is intended for Case 1 (DIO) in Documentation/vm/pin_user_pages.rst. It 2516 * is NOT intended for Case 2 (RDMA: long-term pins). 2517 */ 2518 long pin_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm, 2519 unsigned long start, unsigned long nr_pages, 2520 unsigned int gup_flags, struct page **pages, 2521 struct vm_area_struct **vmas, int *locked) 2522 { 2523 /* 2524 * This is a placeholder, until the pin functionality is activated. 2525 * Until then, just behave like the corresponding get_user_pages*() 2526 * routine. 2527 */ > 2528 return get_user_pages_remote(tsk, mm, start, nr_pages, gup_flags, pages, 2529 vmas, locked); 2530 } 2531 EXPORT_SYMBOL(pin_user_pages_remote); 2532 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation
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