Hi Binbin, Thank you for the patch! Yet something to improve: [auto build test ERROR on wsa/i2c/for-next] [also build test ERROR on linus/master v6.0-rc6 next-20220921] [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/Binbin-Zhou/i2c-ls2x-Add-support-for-the-Loongson-2K-LS7A-I2C/20220922-194252 base: https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-next config: arc-randconfig-r043-20220922 (https://download.01.org/0day-ci/archive/20220923/202209230216.faCwluIB-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/749fc796eb66dc42c209c6a5808c6b2a5e47fbb6 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Binbin-Zhou/i2c-ls2x-Add-support-for-the-Loongson-2K-LS7A-I2C/20220922-194252 git checkout 749fc796eb66dc42c209c6a5808c6b2a5e47fbb6 # 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 SHELL=/bin/bash drivers/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/i2c/i2c-core-base.c: In function 'i2c_add_adapter': >> drivers/i2c/i2c-core-base.c:1568:26: error: implicit declaration of function 'acpi_evaluate_integer'; did you mean 'acpi_evaluate_object'? [-Werror=implicit-function-declaration] 1568 | status = acpi_evaluate_integer(ACPI_HANDLE(dev->parent), | ^~~~~~~~~~~~~~~~~~~~~ | acpi_evaluate_object cc1: some warnings being treated as errors vim +1568 drivers/i2c/i2c-core-base.c 1540 1541 /** 1542 * i2c_add_adapter - declare i2c adapter, use dynamic bus number 1543 * @adapter: the adapter to add 1544 * Context: can sleep 1545 * 1546 * This routine is used to declare an I2C adapter when its bus number 1547 * doesn't matter or when its bus number is specified by an dt alias. 1548 * Examples of bases when the bus number doesn't matter: I2C adapters 1549 * dynamically added by USB links or PCI plugin cards. 1550 * 1551 * When this returns zero, a new bus number was allocated and stored 1552 * in adap->nr, and the specified adapter became available for clients. 1553 * Otherwise, a negative errno value is returned. 1554 */ 1555 int i2c_add_adapter(struct i2c_adapter *adapter) 1556 { 1557 struct device *dev = &adapter->dev; 1558 acpi_status status; 1559 unsigned long long id; 1560 1561 if (dev->of_node) { 1562 id = of_alias_get_id(dev->of_node, "i2c"); 1563 if (id >= 0) { 1564 adapter->nr = id; 1565 return __i2c_add_numbered_adapter(adapter); 1566 } 1567 } else if (dev->parent->fwnode) { > 1568 status = acpi_evaluate_integer(ACPI_HANDLE(dev->parent), 1569 "_UID", NULL, &id); 1570 if (ACPI_SUCCESS(status) && (id >= 0)) { 1571 adapter->nr = id; 1572 return __i2c_add_numbered_adapter(adapter); 1573 } 1574 } 1575 1576 mutex_lock(&core_lock); 1577 id = idr_alloc(&i2c_adapter_idr, adapter, 1578 __i2c_first_dynamic_bus_num, 0, GFP_KERNEL); 1579 mutex_unlock(&core_lock); 1580 if (WARN(id < 0, "couldn't get idr")) 1581 return id; 1582 1583 adapter->nr = id; 1584 1585 return i2c_register_adapter(adapter); 1586 } 1587 EXPORT_SYMBOL(i2c_add_adapter); 1588 -- 0-DAY CI Kernel Test Service https://01.org/lkp
