CC: [email protected] CC: Xiang Gao <[email protected]> CC: [email protected] TO: Huang Jianan <[email protected]> CC: Gao Xiang <[email protected]> CC: Chao Yu <[email protected]>, Chao Yu <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git dev-test head: ac913fada7e1bba6d1aa9fbb707c8cc4529af9b8 commit: 8645bf5f00b6aa29d35707765a46fe8cdd89e0ee [2/4] erofs: add sysfs interface :::::: branch date: 10 hours ago :::::: commit date: 10 hours ago config: i386-randconfig-m021-20211207 (https://download.01.org/0day-ci/archive/20211207/[email protected]/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> Reported-by: Dan Carpenter <[email protected]> smatch warnings: fs/erofs/sysfs.c:131 erofs_attr_store() warn: impossible condition '(t > (~0)) => (0-u32max > u32max)' vim +131 fs/erofs/sysfs.c 8645bf5f00b6aa Huang Jianan 2021-12-01 113 8645bf5f00b6aa Huang Jianan 2021-12-01 114 static ssize_t erofs_attr_store(struct kobject *kobj, struct attribute *attr, 8645bf5f00b6aa Huang Jianan 2021-12-01 115 const char *buf, size_t len) 8645bf5f00b6aa Huang Jianan 2021-12-01 116 { 8645bf5f00b6aa Huang Jianan 2021-12-01 117 struct erofs_sb_info *sbi = container_of(kobj, struct erofs_sb_info, 8645bf5f00b6aa Huang Jianan 2021-12-01 118 s_kobj); 8645bf5f00b6aa Huang Jianan 2021-12-01 119 struct erofs_attr *a = container_of(attr, struct erofs_attr, attr); 8645bf5f00b6aa Huang Jianan 2021-12-01 120 unsigned char *ptr = __struct_ptr(sbi, a->struct_type, a->offset); 8645bf5f00b6aa Huang Jianan 2021-12-01 121 unsigned long t; 8645bf5f00b6aa Huang Jianan 2021-12-01 122 int ret; 8645bf5f00b6aa Huang Jianan 2021-12-01 123 8645bf5f00b6aa Huang Jianan 2021-12-01 124 switch (a->attr_id) { 8645bf5f00b6aa Huang Jianan 2021-12-01 125 case attr_pointer_ui: 8645bf5f00b6aa Huang Jianan 2021-12-01 126 if (!ptr) 8645bf5f00b6aa Huang Jianan 2021-12-01 127 return 0; 8645bf5f00b6aa Huang Jianan 2021-12-01 128 ret = kstrtoul(skip_spaces(buf), 0, &t); 8645bf5f00b6aa Huang Jianan 2021-12-01 129 if (ret) 8645bf5f00b6aa Huang Jianan 2021-12-01 130 return ret; 8645bf5f00b6aa Huang Jianan 2021-12-01 @131 if (t > UINT_MAX) 8645bf5f00b6aa Huang Jianan 2021-12-01 132 return -EINVAL; 8645bf5f00b6aa Huang Jianan 2021-12-01 133 *(unsigned int *)ptr = t; 8645bf5f00b6aa Huang Jianan 2021-12-01 134 return len; 8645bf5f00b6aa Huang Jianan 2021-12-01 135 case attr_pointer_bool: 8645bf5f00b6aa Huang Jianan 2021-12-01 136 if (!ptr) 8645bf5f00b6aa Huang Jianan 2021-12-01 137 return 0; 8645bf5f00b6aa Huang Jianan 2021-12-01 138 ret = kstrtoul(skip_spaces(buf), 0, &t); 8645bf5f00b6aa Huang Jianan 2021-12-01 139 if (ret) 8645bf5f00b6aa Huang Jianan 2021-12-01 140 return ret; 8645bf5f00b6aa Huang Jianan 2021-12-01 141 if (t != 0 && t != 1) 8645bf5f00b6aa Huang Jianan 2021-12-01 142 return -EINVAL; 8645bf5f00b6aa Huang Jianan 2021-12-01 143 *(bool *)ptr = !!t; 8645bf5f00b6aa Huang Jianan 2021-12-01 144 return len; 8645bf5f00b6aa Huang Jianan 2021-12-01 145 } 8645bf5f00b6aa Huang Jianan 2021-12-01 146 return 0; 8645bf5f00b6aa Huang Jianan 2021-12-01 147 } 8645bf5f00b6aa Huang Jianan 2021-12-01 148 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected] _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
