tree: https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs-stable.git linux-4.19.y head: 551162c9bf51fda41d2d5ff5e2c5f70a5800cd5f commit: 8126f71ca4b1f04607c913440c5e5f9bcc02ee9b [260/596] fscrypt: rename fscrypt_do_page_crypto() to fscrypt_crypt_block() config: x86_64-rhel (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce (this is a W=1 build): git checkout 8126f71ca4b1f04607c913440c5e5f9bcc02ee9b # save the attached .config to linux build tree make W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): fs/crypto/crypto.c:128: warning: Function parameter or member 'bounce_page' not described in 'fscrypt_free_bounce_page' fs/crypto/crypto.o: warning: objtool: fscrypt_crypt_block.cold()+0x32: sibling call from callable instruction with modified stack frame --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org