tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: cd77006e01b3198c75fb7819b3d0ff89709539bb commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces date: 2 weeks ago config: x86_64-randconfig-s021-20200703 (attached as .config) compiler: gcc-9 (Debian 9.3.0-14) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-3-gfa153962-dirty git checkout 670d0a4b10704667765f7d18f7592993d02783aa # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> sparse warnings: (new ones prefixed by >>) >> drivers/scsi/qedf/qedf_debugfs.c:113:23: sparse: sparse: incorrect type in >> argument 1 (different address spaces) @@ expected char *buf @@ got >> char [noderef] __user *buffer @@ drivers/scsi/qedf/qedf_debugfs.c:113:23: sparse: expected char *buf >> drivers/scsi/qedf/qedf_debugfs.c:113:23: sparse: got char [noderef] >> __user *buffer >> drivers/scsi/qedf/qedf_debugfs.c:119:40: sparse: sparse: incorrect type in >> argument 1 (different address spaces) @@ expected char *buf @@ got >> char [noderef] __user * @@ drivers/scsi/qedf/qedf_debugfs.c:119:40: sparse: expected char *buf >> drivers/scsi/qedf/qedf_debugfs.c:119:40: sparse: got char [noderef] >> __user * drivers/scsi/qedf/qedf_debugfs.c:147:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected char *buf @@ got char [noderef] __user *buffer @@ drivers/scsi/qedf/qedf_debugfs.c:147:23: sparse: expected char *buf drivers/scsi/qedf/qedf_debugfs.c:147:23: sparse: got char [noderef] __user *buffer drivers/scsi/qedf/qedf_debugfs.c:196:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected char *buf @@ got char [noderef] __user *buffer @@ drivers/scsi/qedf/qedf_debugfs.c:196:23: sparse: expected char *buf drivers/scsi/qedf/qedf_debugfs.c:196:23: sparse: got char [noderef] __user *buffer vim +113 drivers/scsi/qedf/qedf_debugfs.c 61d8658b4a435e Dupuis, Chad 2017-02-15 98 61d8658b4a435e Dupuis, Chad 2017-02-15 99 static ssize_t 61d8658b4a435e Dupuis, Chad 2017-02-15 100 qedf_dbg_fp_int_cmd_read(struct file *filp, char __user *buffer, size_t count, 61d8658b4a435e Dupuis, Chad 2017-02-15 101 loff_t *ppos) 61d8658b4a435e Dupuis, Chad 2017-02-15 102 { 61d8658b4a435e Dupuis, Chad 2017-02-15 103 size_t cnt = 0; 61d8658b4a435e Dupuis, Chad 2017-02-15 104 int id; 61d8658b4a435e Dupuis, Chad 2017-02-15 105 struct qedf_fastpath *fp = NULL; 61d8658b4a435e Dupuis, Chad 2017-02-15 106 struct qedf_dbg_ctx *qedf_dbg = 61d8658b4a435e Dupuis, Chad 2017-02-15 107 (struct qedf_dbg_ctx *)filp->private_data; 61d8658b4a435e Dupuis, Chad 2017-02-15 108 struct qedf_ctx *qedf = container_of(qedf_dbg, 61d8658b4a435e Dupuis, Chad 2017-02-15 109 struct qedf_ctx, dbg_ctx); 61d8658b4a435e Dupuis, Chad 2017-02-15 110 61d8658b4a435e Dupuis, Chad 2017-02-15 111 QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n"); 61d8658b4a435e Dupuis, Chad 2017-02-15 112 61d8658b4a435e Dupuis, Chad 2017-02-15 @113 cnt = sprintf(buffer, "\nFastpath I/O completions\n\n"); 61d8658b4a435e Dupuis, Chad 2017-02-15 114 61d8658b4a435e Dupuis, Chad 2017-02-15 115 for (id = 0; id < qedf->num_queues; id++) { 61d8658b4a435e Dupuis, Chad 2017-02-15 116 fp = &(qedf->fp_array[id]); 61d8658b4a435e Dupuis, Chad 2017-02-15 117 if (fp->sb_id == QEDF_SB_ID_NULL) 61d8658b4a435e Dupuis, Chad 2017-02-15 118 continue; 61d8658b4a435e Dupuis, Chad 2017-02-15 @119 cnt += sprintf((buffer + cnt), "#%d: %lu\n", id, 61d8658b4a435e Dupuis, Chad 2017-02-15 120 fp->completions); 61d8658b4a435e Dupuis, Chad 2017-02-15 121 } 61d8658b4a435e Dupuis, Chad 2017-02-15 122 61d8658b4a435e Dupuis, Chad 2017-02-15 123 cnt = min_t(int, count, cnt - *ppos); 61d8658b4a435e Dupuis, Chad 2017-02-15 124 *ppos += cnt; 61d8658b4a435e Dupuis, Chad 2017-02-15 125 return cnt; 61d8658b4a435e Dupuis, Chad 2017-02-15 126 } 61d8658b4a435e Dupuis, Chad 2017-02-15 127 :::::: The code at line 113 was first introduced by commit :::::: 61d8658b4a435eac729966cc94cdda077a8df5cd scsi: qedf: Add QLogic FastLinQ offload FCoE driver framework. :::::: TO: Dupuis, Chad <[email protected]> :::::: CC: Martin K. Petersen <[email protected]> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
