Hi James, On Wed, Jan 25, 2023 at 07:59:09AM -0500, James Bottomley wrote: > On Wed, 2023-01-25 at 07:11 +0800, kernel test robot wrote: > > Hi James, > > > > I love your patch! Perhaps something to improve: > > > > [auto build test WARNING on char-misc/char-misc-testing] > > [also build test WARNING on char-misc/char-misc-next char-misc/char- > > misc-linus zohar-integrity/next-integrity linus/master v6.2-rc5 next- > > 20230124] > > [If your patch is applied to the wrong git tree, kindly drop us a > > note. > > And when submitting patch, we suggest to use '--base' as documented > > in > > https://git-scm.com/docs/git-format-patch#_base_tree_information] > > > > url: > > https://github.com/intel-lab-lkp/linux/commits/James-Bottomley/tpm-move-buffer-handling-from-static-inlines-to-real-functions/20230125-020146 > > patch link: > > https://lore.kernel.org/r/20230124175516.5984-7-James.Bottomley%40HansenPartnership.com > > patch subject: [PATCH v2 06/11] tpm: Add full HMAC and > > encrypt/decrypt session handling code > > config: arc-allyesconfig > > (https://download.01.org/0day-ci/archive/20230125/202301250706.deGvd0 > > yq-lkp@xxxxxxxxx/config) > > compiler: arceb-elf-gcc (GCC) 12.1.0 > > reproduce (this is a W=1 build): > > wget > > https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross > > -O ~/bin/make.cross > > chmod +x ~/bin/make.cross > > # > > https://github.com/intel-lab-lkp/linux/commit/dc0fc74718b4a786aba4a954233e8ab3afdcc03c > > git remote add linux-review > > https://github.com/intel-lab-lkp/linux > > git fetch --no-tags linux-review James-Bottomley/tpm-move- > > buffer-handling-from-static-inlines-to-real-functions/20230125-020146 > > git checkout dc0fc74718b4a786aba4a954233e8ab3afdcc03c > > # save the config file > > mkdir build_dir && cp config build_dir/.config > > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 > > make.cross W=1 O=build_dir ARCH=arc olddefconfig > > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 > > make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash drivers/char/tpm/ > > > > If you fix the issue, kindly add following tag where applicable > > > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > > > All warnings (new ones prefixed by >>): > > > > drivers/char/tpm/tpm2-sessions.c:1184:5: warning: no previous > > prototype for 'tpm2_create_null_primary' [-Wmissing-prototypes] > > 1184 | int tpm2_create_null_primary(struct tpm_chip *chip) { > > | ^~~~~~~~~~~~~~~~~~~~~~~~ > > drivers/char/tpm/tpm2-sessions.c: In function > > 'tpm_buf_check_hmac_response': > > > > drivers/char/tpm/tpm2-sessions.c:831:1: warning: the frame size > > > > of 1132 bytes is larger than 1024 bytes [-Wframe-larger-than=] > > 831 | } > > | ^ > > drivers/char/tpm/tpm2-sessions.c: In function > > 'tpm_buf_fill_hmac_session': > > drivers/char/tpm/tpm2-sessions.c:579:1: warning: the frame size of > > 1132 bytes is larger than 1024 bytes [-Wframe-larger-than=] > > 579 | } > > | ^ > > Is this a test problem? I can't see why the code would only blow the > stack on the arc architecture and not on any other ... does it have > something funny with on stack crypto structures? This warning is controlled by the value of CONFIG_FRAME_WARN. For "make ARCH=arc allyesconfig", the default value is 1024, so this frame warning shows up during the build. For other arch such as "make ARCH=x86_64 allyesconfig", the default value would be 2048 and won't have this warning. Not sure if this is a real problem that need to be fixed, here just providing above information for your reference. -- Best Regards, Yujie
