tree: https://github.com/intel/linux-intel-lts.git 5.4/yocto head: d3e34fac5e7582733593530aea91df73bfbcdef2 commit: 29e00c15f4cc490b222c2d03b2ee800ecf2d925f [1363/10971] usb: typec: ucsi: acpi: Move to the new API config: x86_64-randconfig-s021-20200916 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-201-g24bdaac6-dirty git checkout 29e00c15f4cc490b222c2d03b2ee800ecf2d925f # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 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 >>) drivers/usb/typec/ucsi/ucsi_acpi.c:54:9: sparse: got void [noderef] <asn:2> * drivers/usb/typec/ucsi/ucsi_acpi.c:64:9: sparse: got void [noderef] <asn:2> * # https://github.com/intel/linux-intel-lts/commit/29e00c15f4cc490b222c2d03b... git remote add intel-linux-intel-lts https://github.com/intel/linux-intel-lts.git git fetch --no-tags intel-linux-intel-lts 5.4/yocto git checkout 29e00c15f4cc490b222c2d03b2ee800ecf2d925f vim +54 drivers/usb/typec/ucsi/ucsi_acpi.c 43 44 static int ucsi_acpi_read(struct ucsi *ucsi, unsigned int offset, 45 void *val, size_t val_len) 46 { 47 struct ucsi_acpi *ua = ucsi_get_drvdata(ucsi); 48 int ret; 49 50 ret = ucsi_acpi_dsm(ua, UCSI_DSM_FUNC_READ); 51 if (ret) 52 return ret; 53 55 56 return 0; 57 } 58 59 static int ucsi_acpi_async_write(struct ucsi *ucsi, unsigned int offset, 60 const void *val, size_t val_len) 61 { 62 struct ucsi_acpi *ua = ucsi_get_drvdata(ucsi); 63 65 66 return ucsi_acpi_dsm(ua, UCSI_DSM_FUNC_WRITE); 67 } 68 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org