tree: git://git.infradead.org/users/jjs/linux-tpmdd master head: 2feacb45cc29cf4fbb3783372ca096ea4d4fd761 commit: 371b14cb93831ac738a90a33c761ac16e05b8553 [14/16] tpm: Move tpm_buf code to include/linux/ config: xtensa-allyesconfig (attached as .config) compiler: xtensa-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 git checkout 371b14cb93831ac738a90a33c761ac16e05b8553 # save the attached .config to linux build tree GCC_VERSION=7.4.0 make.cross ARCH=xtensa If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from include/linux/xarray.h:14:0, from include/linux/radix-tree.h:18, from include/linux/fs.h:15, from include/linux/poll.h:10, from drivers/char/tpm/tpm-dev-common.c:15: include/linux/tpm.h: In function 'tpm_buf_destroy': include/linux/gfp.h:555:36: warning: passing argument 1 of 'free_pages' makes integer from pointer without a cast [-Wint-conversion] #define free_page(addr) free_pages((addr), 0) ^ free_page(buf->data); ^~~~~~~~~ include/linux/gfp.h:544:13: note: expected 'long unsigned int' but argument is of type 'u8 * {aka unsigned char *}' extern void free_pages(unsigned long addr, unsigned int order); ^~~~~~~~~~ vim +/free_page +318 include/linux/tpm.h 315 316 static inline void tpm_buf_destroy(struct tpm_buf *buf) 317 { 319 } 320 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation