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charset=us-ascii Hi Thomas, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 4edcdefd4083ae04b1a5656f4be6cd83ae919ef4 commit: 031cdd3bc3f369553933c1b0f4cb18000162c8ff kunit: Enable PCI on UML without triggering WARN() date: 9 months ago config: um-randconfig-r111-20260626 (https://download.01.org/0day-ci/archive/20260626/202606261021.2zXZiUy4-lkp@intel.com/config) compiler: gcc-13 (Debian 13.3.0-16) 13.3.0 sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260626/202606261021.2zXZiUy4-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 | Fixes: 031cdd3bc3f3 ("kunit: Enable PCI on UML without triggering WARN()") | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202606261021.2zXZiUy4-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/scsi/qedi/qedi_debugfs.c:109:45: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected char const *ct @@ got char const [noderef] __user *buffer @@ drivers/scsi/qedi/qedi_debugfs.c:109:45: sparse: expected char const *ct drivers/scsi/qedi/qedi_debugfs.c:109:45: sparse: got char const [noderef] __user *buffer drivers/scsi/qedi/qedi_debugfs.c:150:41: sparse: sparse: restricted __le16 degrades to integer -- drivers/net/wireless/ath/wil6210/debugfs.c: note: in included file: >> drivers/net/wireless/ath/wil6210/txrx.h:662:23: sparse: sparse: unsigned value that used to be signed checked against zero? drivers/net/wireless/ath/wil6210/debugfs.c:53:31: sparse: signed value source >> drivers/net/wireless/ath/wil6210/txrx.h:662:23: sparse: sparse: unsigned value that used to be signed checked against zero? drivers/net/wireless/ath/wil6210/debugfs.c:1123:39: sparse: signed value source vim +109 drivers/scsi/qedi/qedi_debugfs.c ace7f46ba5fde7 Manish Rangankar 2016-12-01 13 bd571195c9535c Arnd Bergmann 2017-03-02 @14 int qedi_do_not_recover; ace7f46ba5fde7 Manish Rangankar 2016-12-01 15 static struct dentry *qedi_dbg_root; ace7f46ba5fde7 Manish Rangankar 2016-12-01 16 ace7f46ba5fde7 Manish Rangankar 2016-12-01 17 void ace7f46ba5fde7 Manish Rangankar 2016-12-01 18 qedi_dbg_host_init(struct qedi_dbg_ctx *qedi, 779936faf4f121 Arnd Bergmann 2018-02-02 19 const struct qedi_debugfs_ops *dops, ace7f46ba5fde7 Manish Rangankar 2016-12-01 20 const struct file_operations *fops) ace7f46ba5fde7 Manish Rangankar 2016-12-01 21 { ace7f46ba5fde7 Manish Rangankar 2016-12-01 22 char host_dirname[32]; ace7f46ba5fde7 Manish Rangankar 2016-12-01 23 ace7f46ba5fde7 Manish Rangankar 2016-12-01 24 sprintf(host_dirname, "host%u", qedi->host_no); ace7f46ba5fde7 Manish Rangankar 2016-12-01 25 qedi->bdf_dentry = debugfs_create_dir(host_dirname, qedi_dbg_root); ace7f46ba5fde7 Manish Rangankar 2016-12-01 26 ace7f46ba5fde7 Manish Rangankar 2016-12-01 27 while (dops) { ace7f46ba5fde7 Manish Rangankar 2016-12-01 28 if (!(dops->name)) ace7f46ba5fde7 Manish Rangankar 2016-12-01 29 break; ace7f46ba5fde7 Manish Rangankar 2016-12-01 30 26febfb38c7d67 Greg Kroah-Hartman 2019-01-22 31 debugfs_create_file(dops->name, 0600, qedi->bdf_dentry, qedi, ace7f46ba5fde7 Manish Rangankar 2016-12-01 32 fops); ace7f46ba5fde7 Manish Rangankar 2016-12-01 33 dops++; ace7f46ba5fde7 Manish Rangankar 2016-12-01 34 fops++; ace7f46ba5fde7 Manish Rangankar 2016-12-01 35 } ace7f46ba5fde7 Manish Rangankar 2016-12-01 36 } ace7f46ba5fde7 Manish Rangankar 2016-12-01 37 ace7f46ba5fde7 Manish Rangankar 2016-12-01 38 void ace7f46ba5fde7 Manish Rangankar 2016-12-01 39 qedi_dbg_host_exit(struct qedi_dbg_ctx *qedi) ace7f46ba5fde7 Manish Rangankar 2016-12-01 40 { ace7f46ba5fde7 Manish Rangankar 2016-12-01 41 debugfs_remove_recursive(qedi->bdf_dentry); ace7f46ba5fde7 Manish Rangankar 2016-12-01 42 qedi->bdf_dentry = NULL; ace7f46ba5fde7 Manish Rangankar 2016-12-01 43 } ace7f46ba5fde7 Manish Rangankar 2016-12-01 44 ace7f46ba5fde7 Manish Rangankar 2016-12-01 45 void ace7f46ba5fde7 Manish Rangankar 2016-12-01 46 qedi_dbg_init(char *drv_name) ace7f46ba5fde7 Manish Rangankar 2016-12-01 47 { ace7f46ba5fde7 Manish Rangankar 2016-12-01 48 qedi_dbg_root = debugfs_create_dir(drv_name, NULL); ace7f46ba5fde7 Manish Rangankar 2016-12-01 49 } ace7f46ba5fde7 Manish Rangankar 2016-12-01 50 ace7f46ba5fde7 Manish Rangankar 2016-12-01 51 void ace7f46ba5fde7 Manish Rangankar 2016-12-01 52 qedi_dbg_exit(void) ace7f46ba5fde7 Manish Rangankar 2016-12-01 53 { ace7f46ba5fde7 Manish Rangankar 2016-12-01 54 debugfs_remove_recursive(qedi_dbg_root); ace7f46ba5fde7 Manish Rangankar 2016-12-01 55 qedi_dbg_root = NULL; ace7f46ba5fde7 Manish Rangankar 2016-12-01 56 } ace7f46ba5fde7 Manish Rangankar 2016-12-01 57 ace7f46ba5fde7 Manish Rangankar 2016-12-01 58 static ssize_t ace7f46ba5fde7 Manish Rangankar 2016-12-01 59 qedi_dbg_do_not_recover_enable(struct qedi_dbg_ctx *qedi_dbg) ace7f46ba5fde7 Manish Rangankar 2016-12-01 60 { bd571195c9535c Arnd Bergmann 2017-03-02 61 if (!qedi_do_not_recover) bd571195c9535c Arnd Bergmann 2017-03-02 62 qedi_do_not_recover = 1; ace7f46ba5fde7 Manish Rangankar 2016-12-01 63 ace7f46ba5fde7 Manish Rangankar 2016-12-01 64 QEDI_INFO(qedi_dbg, QEDI_LOG_DEBUGFS, "do_not_recover=%d\n", bd571195c9535c Arnd Bergmann 2017-03-02 65 qedi_do_not_recover); ace7f46ba5fde7 Manish Rangankar 2016-12-01 66 return 0; ace7f46ba5fde7 Manish Rangankar 2016-12-01 67 } ace7f46ba5fde7 Manish Rangankar 2016-12-01 68 ace7f46ba5fde7 Manish Rangankar 2016-12-01 69 static ssize_t ace7f46ba5fde7 Manish Rangankar 2016-12-01 70 qedi_dbg_do_not_recover_disable(struct qedi_dbg_ctx *qedi_dbg) ace7f46ba5fde7 Manish Rangankar 2016-12-01 71 { bd571195c9535c Arnd Bergmann 2017-03-02 72 if (qedi_do_not_recover) bd571195c9535c Arnd Bergmann 2017-03-02 73 qedi_do_not_recover = 0; ace7f46ba5fde7 Manish Rangankar 2016-12-01 74 ace7f46ba5fde7 Manish Rangankar 2016-12-01 75 QEDI_INFO(qedi_dbg, QEDI_LOG_DEBUGFS, "do_not_recover=%d\n", bd571195c9535c Arnd Bergmann 2017-03-02 76 qedi_do_not_recover); ace7f46ba5fde7 Manish Rangankar 2016-12-01 77 return 0; ace7f46ba5fde7 Manish Rangankar 2016-12-01 78 } ace7f46ba5fde7 Manish Rangankar 2016-12-01 79 ace7f46ba5fde7 Manish Rangankar 2016-12-01 80 static struct qedi_list_of_funcs qedi_dbg_do_not_recover_ops[] = { ace7f46ba5fde7 Manish Rangankar 2016-12-01 81 { "enable", qedi_dbg_do_not_recover_enable }, ace7f46ba5fde7 Manish Rangankar 2016-12-01 82 { "disable", qedi_dbg_do_not_recover_disable }, ace7f46ba5fde7 Manish Rangankar 2016-12-01 83 { NULL, NULL } ace7f46ba5fde7 Manish Rangankar 2016-12-01 84 }; ace7f46ba5fde7 Manish Rangankar 2016-12-01 85 779936faf4f121 Arnd Bergmann 2018-02-02 86 const struct qedi_debugfs_ops qedi_debugfs_ops[] = { ace7f46ba5fde7 Manish Rangankar 2016-12-01 87 { "gbl_ctx", NULL }, ace7f46ba5fde7 Manish Rangankar 2016-12-01 88 { "do_not_recover", qedi_dbg_do_not_recover_ops}, ace7f46ba5fde7 Manish Rangankar 2016-12-01 89 { "io_trace", NULL }, ace7f46ba5fde7 Manish Rangankar 2016-12-01 90 { NULL, NULL } ace7f46ba5fde7 Manish Rangankar 2016-12-01 91 }; ace7f46ba5fde7 Manish Rangankar 2016-12-01 92 ace7f46ba5fde7 Manish Rangankar 2016-12-01 93 static ssize_t ace7f46ba5fde7 Manish Rangankar 2016-12-01 94 qedi_dbg_do_not_recover_cmd_write(struct file *filp, const char __user *buffer, ace7f46ba5fde7 Manish Rangankar 2016-12-01 95 size_t count, loff_t *ppos) ace7f46ba5fde7 Manish Rangankar 2016-12-01 96 { ace7f46ba5fde7 Manish Rangankar 2016-12-01 97 size_t cnt = 0; ace7f46ba5fde7 Manish Rangankar 2016-12-01 98 struct qedi_dbg_ctx *qedi_dbg = ace7f46ba5fde7 Manish Rangankar 2016-12-01 99 (struct qedi_dbg_ctx *)filp->private_data; ace7f46ba5fde7 Manish Rangankar 2016-12-01 100 struct qedi_list_of_funcs *lof = qedi_dbg_do_not_recover_ops; ace7f46ba5fde7 Manish Rangankar 2016-12-01 101 ace7f46ba5fde7 Manish Rangankar 2016-12-01 102 if (*ppos) ace7f46ba5fde7 Manish Rangankar 2016-12-01 103 return 0; ace7f46ba5fde7 Manish Rangankar 2016-12-01 104 ace7f46ba5fde7 Manish Rangankar 2016-12-01 105 while (lof) { ace7f46ba5fde7 Manish Rangankar 2016-12-01 106 if (!(lof->oper_str)) ace7f46ba5fde7 Manish Rangankar 2016-12-01 107 break; ace7f46ba5fde7 Manish Rangankar 2016-12-01 108 ace7f46ba5fde7 Manish Rangankar 2016-12-01 @109 if (!strncmp(lof->oper_str, buffer, strlen(lof->oper_str))) { ace7f46ba5fde7 Manish Rangankar 2016-12-01 110 cnt = lof->oper_func(qedi_dbg); ace7f46ba5fde7 Manish Rangankar 2016-12-01 111 break; ace7f46ba5fde7 Manish Rangankar 2016-12-01 112 } ace7f46ba5fde7 Manish Rangankar 2016-12-01 113 ace7f46ba5fde7 Manish Rangankar 2016-12-01 114 lof++; ace7f46ba5fde7 Manish Rangankar 2016-12-01 115 } ace7f46ba5fde7 Manish Rangankar 2016-12-01 116 return (count - cnt); ace7f46ba5fde7 Manish Rangankar 2016-12-01 117 } ace7f46ba5fde7 Manish Rangankar 2016-12-01 118 :::::: The code at line 109 was first introduced by commit :::::: ace7f46ba5fde7273207c7122b0650ceb72510e0 scsi: qedi: Add QLogic FastLinQ offload iSCSI driver framework. :::::: TO: Manish Rangankar :::::: CC: Martin K. Petersen -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki