Hi, Thank you for the patch! Yet something to improve: [auto build test ERROR on mmotm/master] [also build test ERROR on next-20200110] [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/buddy-zhang-aliyun-com/mm-cma-c-find-a-named-CMA-area-by-name/20200114-155334 base: git://git.cmpxchg.org/linux-mmotm.git master config: m68k-allmodconfig (attached as .config) compiler: m68k-linux-gcc (GCC) 7.5.0 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=7.5.0 make.cross ARCH=m68k If you fix the issue, kindly add following tag Reported-by: kbuild test robot All errors (new ones prefixed by >>): >> mm/cma.c:55:1: error: expected ',' or ';' before 'phys_addr_t' phys_addr_t cma_get_base(const struct cma *cma) ^~~~~~~~~~~ vim +55 mm/cma.c 0095fc296f5cf9 BuddyZhang 2020-01-14 54 ac173824959ade Sasha Levin 2015-04-14 @55 phys_addr_t cma_get_base(const struct cma *cma) a254129e8686bf Joonsoo Kim 2014-08-06 56 { a254129e8686bf Joonsoo Kim 2014-08-06 57 return PFN_PHYS(cma->base_pfn); a254129e8686bf Joonsoo Kim 2014-08-06 58 } a254129e8686bf Joonsoo Kim 2014-08-06 59 :::::: The code at line 55 was first introduced by commit :::::: ac173824959adeb489f9fcf88858774c4535a241 mm: cma: constify and use correct signness in mm/cma.c :::::: TO: Sasha Levin :::::: CC: Linus Torvalds --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation