Hi "Rafael, Thank you for the patch! Yet something to improve: [auto build test ERROR on rafael-pm/linux-next] [also build test ERROR on linus/master linux/master v5.18-rc2 next-20220411] [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] url: https://github.com/intel-lab-lkp/linux/commits/Rafael-J-Wysocki/ACPICA-ACPICA-20220331/20220412-030922 base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next config: i386-randconfig-a006-20220411 (https://download.01.org/0day-ci/archive/20220412/202204121052.HOrN6tpw-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project fe2478d44e4f7f191c43fef629ac7a23d0251e72) 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/5cdc6166cc35043a80f5f328d6e6b58190c4e46c git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Rafael-J-Wysocki/ACPICA-ACPICA-20220331/20220412-030922 git checkout 5cdc6166cc35043a80f5f328d6e6b58190c4e46c # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> Note: the linux-review/Rafael-J-Wysocki/ACPICA-ACPICA-20220331/20220412-030922 HEAD 32181ae3d3173aeee41f709612dfa4d52951b39d builds fine. It only hurts bisectability. All errors (new ones prefixed by >>): >> drivers/acpi/acpica/exsystem.c:140:7: error: use of undeclared identifier 'how_long_US'; did you mean 'how_long_us'? if (how_long_US > 100) { ^~~~~~~~~~~ how_long_us drivers/acpi/acpica/exsystem.c:123:41: note: 'how_long_us' declared here acpi_status acpi_ex_system_do_stall(u32 how_long_us) ^ 1 error generated. vim +140 drivers/acpi/acpica/exsystem.c 105 106 /******************************************************************************* 107 * 108 * FUNCTION: acpi_ex_system_do_stall 109 * 110 * PARAMETERS: how_long_us - The amount of time to stall, 111 * in microseconds 112 * 113 * RETURN: Status 114 * 115 * DESCRIPTION: Suspend running thread for specified amount of time. 116 * Note: ACPI specification requires that Stall() does not 117 * relinquish the processor, and delays longer than 100 usec 118 * should use Sleep() instead. We allow stalls up to 255 usec 119 * for compatibility with other interpreters and existing BIOSs. 120 * 121 ******************************************************************************/ 122 123 acpi_status acpi_ex_system_do_stall(u32 how_long_us) 124 { 125 acpi_status status = AE_OK; 126 127 ACPI_FUNCTION_ENTRY(); 128 129 if (how_long_us > 255) { 130 /* 131 * Longer than 255 microseconds, this is an error 132 * 133 * (ACPI specifies 100 usec as max, but this gives some slack in 134 * order to support existing BIOSs) 135 */ 136 ACPI_ERROR((AE_INFO, 137 "Time parameter is too large (%u)", how_long_us)); 138 status = AE_AML_OPERAND_VALUE; 139 } else { > 140 if (how_long_US > 100) { 141 ACPI_WARNING((AE_INFO, 142 "Time parameter %u us > 100 us violating ACPI spec, please fix the firmware.", 143 how_long_us)); 144 } 145 acpi_os_stall(how_long_us); 146 } 147 148 return (status); 149 } 150 -- 0-DAY CI Kernel Test Service https://01.org/lkp
