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Sun, 10 Sep 2023 20:55:20 +0000 Date: Mon, 11 Sep 2023 04:54:58 +0800 From: kernel test robot To: Mark Brown Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org Subject: drivers/base/regmap/regmap-kunit.c:795:43: sparse: sparse: cast to restricted __le16 Message-ID: <202309110407.qVp0e60U-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: e56b2b6057996c5f48da518c79d6590f8bfaabf3 commit: 155a6bd6375b584c8bdbf963b8ddef672ff9aca3 regmap: Provide basic KUnit coverage for the raw register I/O date: 3 months ago config: i386-randconfig-063-20230910 (https://download.01.org/0day-ci/archive/20230911/202309110407.qVp0e60U-lkp@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230911/202309110407.qVp0e60U-lkp@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202309110407.qVp0e60U-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/base/regmap/regmap-kunit.c:795:43: sparse: sparse: cast to restricted __le16 >> drivers/base/regmap/regmap-kunit.c:798:43: sparse: sparse: cast to restricted __be16 drivers/base/regmap/regmap-kunit.c:875:25: sparse: sparse: cast to restricted __be16 drivers/base/regmap/regmap-kunit.c:875:25: sparse: sparse: cast to restricted __be16 drivers/base/regmap/regmap-kunit.c:877:25: sparse: sparse: cast to restricted __le16 drivers/base/regmap/regmap-kunit.c:877:25: sparse: sparse: cast to restricted __le16 drivers/base/regmap/regmap-kunit.c:944:33: sparse: sparse: cast to restricted __be16 drivers/base/regmap/regmap-kunit.c:944:33: sparse: sparse: cast to restricted __be16 drivers/base/regmap/regmap-kunit.c:947:33: sparse: sparse: cast to restricted __le16 drivers/base/regmap/regmap-kunit.c:947:33: sparse: sparse: cast to restricted __le16 drivers/base/regmap/regmap-kunit.c:989:17: sparse: sparse: cast to restricted __be16 drivers/base/regmap/regmap-kunit.c:989:17: sparse: sparse: cast to restricted __be16 drivers/base/regmap/regmap-kunit.c:992:17: sparse: sparse: cast to restricted __le16 drivers/base/regmap/regmap-kunit.c:992:17: sparse: sparse: cast to restricted __le16 drivers/base/regmap/regmap-kunit.c:1004:33: sparse: sparse: cast to restricted __be16 drivers/base/regmap/regmap-kunit.c:1004:33: sparse: sparse: cast to restricted __be16 drivers/base/regmap/regmap-kunit.c:1007:33: sparse: sparse: cast to restricted __le16 drivers/base/regmap/regmap-kunit.c:1007:33: sparse: sparse: cast to restricted __le16 vim +795 drivers/base/regmap/regmap-kunit.c 758 759 static struct regmap *gen_raw_regmap(struct regmap_config *config, 760 struct raw_test_types *test_type, 761 struct regmap_ram_data **data) 762 { 763 u16 *buf; 764 struct regmap *ret; 765 size_t size = (config->max_register + 1) * config->reg_bits / 8; 766 int i; 767 struct reg_default *defaults; 768 769 config->cache_type = test_type->cache_type; 770 config->val_format_endian = test_type->val_endian; 771 772 buf = kmalloc(size, GFP_KERNEL); 773 if (!buf) 774 return ERR_PTR(-ENOMEM); 775 776 get_random_bytes(buf, size); 777 778 *data = kzalloc(sizeof(**data), GFP_KERNEL); 779 if (!(*data)) 780 return ERR_PTR(-ENOMEM); 781 (*data)->vals = (void *)buf; 782 783 config->num_reg_defaults = config->max_register + 1; 784 defaults = kcalloc(config->num_reg_defaults, 785 sizeof(struct reg_default), 786 GFP_KERNEL); 787 if (!defaults) 788 return ERR_PTR(-ENOMEM); 789 config->reg_defaults = defaults; 790 791 for (i = 0; i < config->num_reg_defaults; i++) { 792 defaults[i].reg = i; 793 switch (test_type->val_endian) { 794 case REGMAP_ENDIAN_LITTLE: > 795 defaults[i].def = le16_to_cpu(buf[i]); 796 break; 797 case REGMAP_ENDIAN_BIG: > 798 defaults[i].def = be16_to_cpu(buf[i]); 799 break; 800 default: 801 return ERR_PTR(-EINVAL); 802 } 803 } 804 805 /* 806 * We use the defaults in the tests but they don't make sense 807 * to the core if there's no cache. 808 */ 809 if (config->cache_type == REGCACHE_NONE) 810 config->num_reg_defaults = 0; 811 812 ret = regmap_init_raw_ram(config, *data); 813 if (IS_ERR(ret)) { 814 kfree(buf); 815 kfree(*data); 816 } 817 818 return ret; 819 } 820 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki