Hi Mao, kernel test robot noticed the following build errors: [auto build test ERROR on robh/for-next] [also build test ERROR on linus/master v6.7 next-20240112] [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/Mao-Jinlong/coresight-core-Add-device-name-support/20240116-004557 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next patch link: https://lore.kernel.org/r/20240115164252.26510-2-quic_jinlmao%40quicinc.com patch subject: [PATCH v2 1/2] coresight: core: Add device name support config: arm-randconfig-r081-20240116 (https://download.01.org/0day-ci/archive/20240116/202401161905.KuRUhKW4-lkp@xxxxxxxxx/config) compiler: clang version 18.0.0git (https://github.com/llvm/llvm-project 9bde5becb44ea071f5e1fa1f5d4071dc8788b18c) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240116/202401161905.KuRUhKW4-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202401161905.KuRUhKW4-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> drivers/hwtracing/coresight/coresight-core.c:1775:7: error: assigning to 'char *' from 'const char *' discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers] 1775 | name = coresight_get_device_name(dev); | ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 error generated. vim +1775 drivers/hwtracing/coresight/coresight-core.c 1758 1759 /* 1760 * coresight_alloc_device_name - Get an index for a given device in the 1761 * device index list specific to a driver. An index is allocated for a 1762 * device and is tracked with the fwnode_handle to prevent allocating 1763 * duplicate indices for the same device (e.g, if we defer probing of 1764 * a device due to dependencies), in case the index is requested again. 1765 */ 1766 char *coresight_alloc_device_name(struct coresight_dev_list *dict, 1767 struct device *dev) 1768 { 1769 int idx; 1770 char *name = NULL; 1771 struct fwnode_handle **list; 1772 1773 mutex_lock(&coresight_mutex); 1774 > 1775 name = coresight_get_device_name(dev); 1776 if (!name) { 1777 idx = coresight_search_device_idx(dict, dev_fwnode(dev)); 1778 if (idx < 0) { 1779 /* Make space for the new entry */ 1780 idx = dict->nr_idx; 1781 list = krealloc_array(dict->fwnode_list, 1782 idx + 1, sizeof(*dict->fwnode_list), 1783 GFP_KERNEL); 1784 if (ZERO_OR_NULL_PTR(list)) { 1785 idx = -ENOMEM; 1786 goto done; 1787 } 1788 1789 list[idx] = dev_fwnode(dev); 1790 dict->fwnode_list = list; 1791 dict->nr_idx = idx + 1; 1792 } 1793 1794 name = devm_kasprintf(dev, GFP_KERNEL, "%s%d", dict->pfx, idx); 1795 } 1796 done: 1797 mutex_unlock(&coresight_mutex); 1798 return name; 1799 } 1800 EXPORT_SYMBOL_GPL(coresight_alloc_device_name); 1801 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
