tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 42eb8fdac2fc5d62392dcfcf0253753e821a97b0 commit: 3b3dd1f0dbfe92781c60f36ea5c22b26360f9909 platform/chrome: cros_ec_typec: Report SOP' PD revision from status date: 10 months ago config: x86_64-randconfig-s021-20211117 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 3b3dd1f0dbfe92781c60f36ea5c22b26360f9909 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/platform/chrome/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) vim +900 drivers/platform/chrome/cros_ec_typec.c 870 871 static void cros_typec_handle_status(struct cros_typec_data *typec, int port_num) 872 { 873 struct ec_response_typec_status resp; 874 struct ec_params_typec_status req = { 875 .port = port_num, 876 }; 877 int ret; 878 879 ret = cros_typec_ec_command(typec, 0, EC_CMD_TYPEC_STATUS, &req, sizeof(req), 880 &resp, sizeof(resp)); 881 if (ret < 0) { 882 dev_warn(typec->dev, "EC_CMD_TYPEC_STATUS failed for port: %d\n", port_num); 883 return; 884 } 885 886 /* Handle any events appropriately. */ 887 if (resp.events & PD_STATUS_EVENT_SOP_DISC_DONE && !typec->ports[port_num]->sop_disc_done) { 888 ret = cros_typec_handle_sop_disc(typec, port_num); 889 if (ret < 0) 890 dev_err(typec->dev, "Couldn't parse SOP Disc data, port: %d\n", port_num); 891 else 892 typec->ports[port_num]->sop_disc_done = true; 893 } 894 895 if (resp.events & PD_STATUS_EVENT_SOP_PRIME_DISC_DONE && 896 !typec->ports[port_num]->sop_prime_disc_done) { 897 u16 sop_prime_revision; 898 899 /* Convert BCD to the format preferred by the TypeC framework */ 901 ret = cros_typec_handle_sop_prime_disc(typec, port_num, sop_prime_revision); 902 if (ret < 0) 903 dev_err(typec->dev, "Couldn't parse SOP' Disc data, port: %d\n", port_num); 904 else 905 typec->ports[port_num]->sop_prime_disc_done = true; 906 } 907 } 908 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org