scsi: scsi_debug: tab, kstrto changes

Some of my development tools tend to add spaces (my preference) rather
than tabs (kernel convention). Running unexpand to clean these spaces
up found more of them than checkpatch.pl did. Then checkpatch.pl
complained about other style violations in those newly tabbed lines.
Signed-off-by: NDouglas Gilbert <dgilbert@interlog.com>
Reviewed-by: NBart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/scsi_debug.c

@@ -308,8 +308,8 @@ struct opcode_info_t {
 	u32 flags;		/* OR-ed set of SDEB_F_* */
 	int (*pfp)(struct scsi_cmnd *, struct sdebug_dev_info *);
 	const struct opcode_info_t *arrp;  /* num_attached elements or NULL */
-	u8 len_mask[16];	/* len=len_mask[0], then mask for cdb[1]... */
-				/* ignore cdb bytes after position 15 */
+	u8 len_mask[16];	/* len_mask[0]-->cdb_len, then mask for cdb */
+				/* 1 to min(cdb_len, 15); ignore cdb[15...] */
 };
 
 /* SCSI opcodes (first byte of cdb) of interest mapped onto these indexes */
@@ -344,7 +344,7 @@ enum sdeb_opcode_index {
 	SDEB_I_WRITE_SAME = 27,		/* 10, 16 */
 	SDEB_I_SYNC_CACHE = 28,		/* 10 only */
 	SDEB_I_COMP_WRITE = 29,
-	SDEB_I_LAST_ELEMENT = 30,	/* keep this last */
+	SDEB_I_LAST_ELEMENT = 30,	/* keep this last (previous + 1) */
 };
 
 
@@ -1962,7 +1962,7 @@ static unsigned char ctrl_m_pg[] = {0xa, 10, 2, 0, 0, 0, 0, 0,
 static int resp_ctrl_m_pg(unsigned char * p, int pcontrol, int target)
 { 	/* Control mode page for mode_sense */
 	unsigned char ch_ctrl_m_pg[] = {/* 0xa, 10, */ 0x6, 0, 0, 0, 0, 0,
-				        0, 0, 0, 0};
+					0, 0, 0, 0};
 	unsigned char d_ctrl_m_pg[] = {0xa, 10, 2, 0, 0, 0, 0, 0,
 				     0, 0, 0x2, 0x4b};
 
@@ -2139,13 +2139,13 @@ static int resp_mode_sense(struct scsi_cmnd *scp,
 		len = resp_disconnect_pg(ap, pcontrol, target);
 		offset += len;
 		break;
-        case 0x3:       /* Format device page, direct access */
+	case 0x3:       /* Format device page, direct access */
 		if (is_disk) {
 			len = resp_format_pg(ap, pcontrol, target);
 			offset += len;
 		} else
 			bad_pcode = true;
-                break;
+		break;
 	case 0x8:	/* Caching page, direct access */
 		if (is_disk) {
 			len = resp_caching_pg(ap, pcontrol, target);
@@ -2161,7 +2161,7 @@ static int resp_mode_sense(struct scsi_cmnd *scp,
 		if ((subpcode > 0x2) && (subpcode < 0xff)) {
 			mk_sense_invalid_fld(scp, SDEB_IN_CDB, 3, -1);
 			return check_condition_result;
-	        }
+		}
 		len = 0;
 		if ((0x0 == subpcode) || (0xff == subpcode))
 			len += resp_sas_sf_m_pg(ap + len, pcontrol, target);
@@ -2198,7 +2198,7 @@ static int resp_mode_sense(struct scsi_cmnd *scp,
 		} else {
 			mk_sense_invalid_fld(scp, SDEB_IN_CDB, 3, -1);
 			return check_condition_result;
-                }
+		}
 		break;
 	default:
 		bad_pcode = true;
@@ -2234,8 +2234,8 @@ static int resp_mode_select(struct scsi_cmnd *scp,
 		mk_sense_invalid_fld(scp, SDEB_IN_CDB, mselect6 ? 4 : 7, -1);
 		return check_condition_result;
 	}
-        res = fetch_to_dev_buffer(scp, arr, param_len);
-        if (-1 == res)
+	res = fetch_to_dev_buffer(scp, arr, param_len);
+	if (-1 == res)
 		return DID_ERROR << 16;
 	else if (sdebug_verbose && (res < param_len))
 		sdev_printk(KERN_INFO, scp->device,
@@ -2301,8 +2301,8 @@ static int resp_temp_l_pg(unsigned char * arr)
 				     0x0, 0x1, 0x3, 0x2, 0x0, 65,
 		};
 
-        memcpy(arr, temp_l_pg, sizeof(temp_l_pg));
-        return sizeof(temp_l_pg);
+	memcpy(arr, temp_l_pg, sizeof(temp_l_pg));
+	return sizeof(temp_l_pg);
 }
 
 static int resp_ie_l_pg(unsigned char * arr)
@@ -2310,18 +2310,18 @@ static int resp_ie_l_pg(unsigned char * arr)
 	unsigned char ie_l_pg[] = {0x0, 0x0, 0x3, 0x3, 0x0, 0x0, 38,
 		};
 
-        memcpy(arr, ie_l_pg, sizeof(ie_l_pg));
+	memcpy(arr, ie_l_pg, sizeof(ie_l_pg));
 	if (iec_m_pg[2] & 0x4) {	/* TEST bit set */
 		arr[4] = THRESHOLD_EXCEEDED;
 		arr[5] = 0xff;
 	}
-        return sizeof(ie_l_pg);
+	return sizeof(ie_l_pg);
 }
 
 #define SDEBUG_MAX_LSENSE_SZ 512
 
-static int resp_log_sense(struct scsi_cmnd * scp,
-                          struct sdebug_dev_info * devip)
+static int resp_log_sense(struct scsi_cmnd *scp,
+			  struct sdebug_dev_info *devip)
 {
 	int ppc, sp, pcode, subpcode, alloc_len, len, n;
 	unsigned char arr[SDEBUG_MAX_LSENSE_SZ];
@@ -3665,12 +3665,12 @@ static struct sdebug_dev_info *find_build_dev_info(struct scsi_device *sdev)
 	if (!sdbg_host) {
 		pr_err("Host info NULL\n");
 		return NULL;
-        }
+	}
 	list_for_each_entry(devip, &sdbg_host->dev_info_list, dev_list) {
 		if ((devip->used) && (devip->channel == sdev->channel) &&
-                    (devip->target == sdev->id) &&
-                    (devip->lun == sdev->lun))
-                        return devip;
+		    (devip->target == sdev->id) &&
+		    (devip->lun == sdev->lun))
+			return devip;
 		else {
 			if ((!devip->used) && (!open_devip))
 				open_devip = devip;
@@ -3911,8 +3911,8 @@ static int scsi_debug_bus_reset(struct scsi_cmnd * SCpnt)
 {
 	struct sdebug_host_info *sdbg_host;
 	struct sdebug_dev_info *devip;
-        struct scsi_device * sdp;
-        struct Scsi_Host * hp;
+	struct scsi_device *sdp;
+	struct Scsi_Host *hp;
 	int k = 0;
 
 	++num_bus_resets;
@@ -3926,7 +3926,7 @@ static int scsi_debug_bus_reset(struct scsi_cmnd * SCpnt)
 		sdbg_host = *(struct sdebug_host_info **)shost_priv(hp);
 		if (sdbg_host) {
 			list_for_each_entry(devip,
-                                            &sdbg_host->dev_info_list,
+					    &sdbg_host->dev_info_list,
 					    dev_list) {
 				set_bit(SDEBUG_UA_BUS_RESET, devip->uas_bm);
 				++k;
@@ -3949,15 +3949,15 @@ static int scsi_debug_host_reset(struct scsi_cmnd * SCpnt)
 	++num_host_resets;
 	if ((SCpnt->device) && (SDEBUG_OPT_ALL_NOISE & sdebug_opts))
 		sdev_printk(KERN_INFO, SCpnt->device, "%s\n", __func__);
-        spin_lock(&sdebug_host_list_lock);
-        list_for_each_entry(sdbg_host, &sdebug_host_list, host_list) {
+	spin_lock(&sdebug_host_list_lock);
+	list_for_each_entry(sdbg_host, &sdebug_host_list, host_list) {
 		list_for_each_entry(devip, &sdbg_host->dev_info_list,
 				    dev_list) {
 			set_bit(SDEBUG_UA_BUS_RESET, devip->uas_bm);
 			++k;
 		}
-        }
-        spin_unlock(&sdebug_host_list_lock);
+	}
+	spin_unlock(&sdebug_host_list_lock);
 	stop_all_queued();
 	if (SDEBUG_OPT_RESET_NOISE & sdebug_opts)
 		sdev_printk(KERN_INFO, SCpnt->device,
@@ -3984,7 +3984,7 @@ static void __init sdebug_build_parts(unsigned char *ramp,
 	sectors_per_part = (num_sectors - sdebug_sectors_per)
 			   / sdebug_num_parts;
 	heads_by_sects = sdebug_heads * sdebug_sectors_per;
-        starts[0] = sdebug_sectors_per;
+	starts[0] = sdebug_sectors_per;
 	for (k = 1; k < sdebug_num_parts; ++k)
 		starts[k] = ((k * sectors_per_part) / heads_by_sects)
 			    * heads_by_sects;
@@ -4490,15 +4490,15 @@ static ssize_t opts_show(struct device_driver *ddp, char *buf)
 static ssize_t opts_store(struct device_driver *ddp, const char *buf,
 			  size_t count)
 {
-        int opts;
+	int opts;
 	char work[20];
 
-        if (1 == sscanf(buf, "%10s", work)) {
-		if (0 == strncasecmp(work,"0x", 2)) {
-			if (1 == sscanf(&work[2], "%x", &opts))
+	if (sscanf(buf, "%10s", work) == 1) {
+		if (strncasecmp(work, "0x", 2) == 0) {
+			if (kstrtoint(work + 2, 16, &opts) == 0)
 				goto opts_done;
 		} else {
-			if (1 == sscanf(work, "%d", &opts))
+			if (kstrtoint(work, 10, &opts) == 0)
 				goto opts_done;
 		}
 	}
@@ -4519,7 +4519,7 @@ static ssize_t ptype_show(struct device_driver *ddp, char *buf)
 static ssize_t ptype_store(struct device_driver *ddp, const char *buf,
 			   size_t count)
 {
-        int n;
+	int n;
 
 	if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
 		sdebug_ptype = n;
@@ -4536,7 +4536,7 @@ static ssize_t dsense_show(struct device_driver *ddp, char *buf)
 static ssize_t dsense_store(struct device_driver *ddp, const char *buf,
 			    size_t count)
 {
-        int n;
+	int n;
 
 	if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
 		sdebug_dsense = n;
@@ -4553,7 +4553,7 @@ static ssize_t fake_rw_show(struct device_driver *ddp, char *buf)
 static ssize_t fake_rw_store(struct device_driver *ddp, const char *buf,
 			     size_t count)
 {
-        int n;
+	int n;
 
 	if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
 		n = (n > 0);
@@ -4586,7 +4586,7 @@ static ssize_t no_lun_0_show(struct device_driver *ddp, char *buf)
 static ssize_t no_lun_0_store(struct device_driver *ddp, const char *buf,
 			      size_t count)
 {
-        int n;
+	int n;
 
 	if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
 		sdebug_no_lun_0 = n;
@@ -4603,7 +4603,7 @@ static ssize_t num_tgts_show(struct device_driver *ddp, char *buf)
 static ssize_t num_tgts_store(struct device_driver *ddp, const char *buf,
 			      size_t count)
 {
-        int n;
+	int n;
 
 	if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
 		sdebug_num_tgts = n;
@@ -4633,7 +4633,7 @@ static ssize_t every_nth_show(struct device_driver *ddp, char *buf)
 static ssize_t every_nth_store(struct device_driver *ddp, const char *buf,
 			       size_t count)
 {
-        int nth;
+	int nth;
 
 	if ((count > 0) && (1 == sscanf(buf, "%d", &nth))) {
 		sdebug_every_nth = nth;
@@ -4655,7 +4655,7 @@ static ssize_t max_luns_show(struct device_driver *ddp, char *buf)
 static ssize_t max_luns_store(struct device_driver *ddp, const char *buf,
 			      size_t count)
 {
-        int n;
+	int n;
 	bool changed;
 
 	if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
@@ -4742,7 +4742,7 @@ static ssize_t virtual_gb_show(struct device_driver *ddp, char *buf)
 static ssize_t virtual_gb_store(struct device_driver *ddp, const char *buf,
 				size_t count)
 {
-        int n;
+	int n;
 	bool changed;
 
 	if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n >= 0)) {
@@ -5196,12 +5196,12 @@ static int __init scsi_debug_init(void)
 	host_to_add = sdebug_add_host;
 	sdebug_add_host = 0;
 
-        for (k = 0; k < host_to_add; k++) {
-                if (sdebug_add_adapter()) {
+	for (k = 0; k < host_to_add; k++) {
+		if (sdebug_add_adapter()) {
 			pr_err("sdebug_add_adapter failed k=%d\n", k);
-                        break;
-                }
-        }
+			break;
+		}
+	}
 
 	if (sdebug_verbose)
 		pr_info("built %d host(s)\n", sdebug_add_host);
@@ -5244,53 +5244,53 @@ module_exit(scsi_debug_exit);
 
 static void sdebug_release_adapter(struct device * dev)
 {
-        struct sdebug_host_info *sdbg_host;
+	struct sdebug_host_info *sdbg_host;
 
 	sdbg_host = to_sdebug_host(dev);
-        kfree(sdbg_host);
+	kfree(sdbg_host);
 }
 
 static int sdebug_add_adapter(void)
 {
 	int k, devs_per_host;
-        int error = 0;
-        struct sdebug_host_info *sdbg_host;
+	int error = 0;
+	struct sdebug_host_info *sdbg_host;
 	struct sdebug_dev_info *sdbg_devinfo, *tmp;
 
-        sdbg_host = kzalloc(sizeof(*sdbg_host),GFP_KERNEL);
-        if (NULL == sdbg_host) {
+	sdbg_host = kzalloc(sizeof(*sdbg_host), GFP_KERNEL);
+	if (sdbg_host == NULL) {
 		pr_err("out of memory at line %d\n", __LINE__);
-                return -ENOMEM;
-        }
+		return -ENOMEM;
+	}
 
-        INIT_LIST_HEAD(&sdbg_host->dev_info_list);
+	INIT_LIST_HEAD(&sdbg_host->dev_info_list);
 
 	devs_per_host = sdebug_num_tgts * sdebug_max_luns;
-        for (k = 0; k < devs_per_host; k++) {
+	for (k = 0; k < devs_per_host; k++) {
 		sdbg_devinfo = sdebug_device_create(sdbg_host, GFP_KERNEL);
 		if (!sdbg_devinfo) {
 			pr_err("out of memory at line %d\n", __LINE__);
-                        error = -ENOMEM;
+			error = -ENOMEM;
 			goto clean;
-                }
-        }
+		}
+	}
 
-        spin_lock(&sdebug_host_list_lock);
-        list_add_tail(&sdbg_host->host_list, &sdebug_host_list);
-        spin_unlock(&sdebug_host_list_lock);
+	spin_lock(&sdebug_host_list_lock);
+	list_add_tail(&sdbg_host->host_list, &sdebug_host_list);
+	spin_unlock(&sdebug_host_list_lock);
 
-        sdbg_host->dev.bus = &pseudo_lld_bus;
-        sdbg_host->dev.parent = pseudo_primary;
-        sdbg_host->dev.release = &sdebug_release_adapter;
+	sdbg_host->dev.bus = &pseudo_lld_bus;
+	sdbg_host->dev.parent = pseudo_primary;
+	sdbg_host->dev.release = &sdebug_release_adapter;
 	dev_set_name(&sdbg_host->dev, "adapter%d", sdebug_add_host);
 
-        error = device_register(&sdbg_host->dev);
+	error = device_register(&sdbg_host->dev);
 
-        if (error)
+	if (error)
 		goto clean;
 
 	++sdebug_add_host;
-        return error;
+	return error;
 
 clean:
 	list_for_each_entry_safe(sdbg_devinfo, tmp, &sdbg_host->dev_info_list,
@@ -5300,20 +5300,20 @@ static int sdebug_add_adapter(void)
 	}
 
 	kfree(sdbg_host);
-        return error;
+	return error;
 }
 
 static void sdebug_remove_adapter(void)
 {
-        struct sdebug_host_info * sdbg_host = NULL;
+	struct sdebug_host_info *sdbg_host = NULL;
 
-        spin_lock(&sdebug_host_list_lock);
-        if (!list_empty(&sdebug_host_list)) {
-                sdbg_host = list_entry(sdebug_host_list.prev,
-                                       struct sdebug_host_info, host_list);
+	spin_lock(&sdebug_host_list_lock);
+	if (!list_empty(&sdebug_host_list)) {
+		sdbg_host = list_entry(sdebug_host_list.prev,
+				       struct sdebug_host_info, host_list);
 		list_del(&sdbg_host->host_list);
 	}
-        spin_unlock(&sdebug_host_list_lock);
+	spin_unlock(&sdebug_host_list_lock);
 
 	if (!sdbg_host)
 		return;
@@ -5575,7 +5575,7 @@ static int sdebug_driver_probe(struct device * dev)
 	if (sdebug_mq_active)
 		hpnt->nr_hw_queues = submit_queues;
 
-        sdbg_host->shost = hpnt;
+	sdbg_host->shost = hpnt;
 	*((struct sdebug_host_info **)hpnt->hostdata) = sdbg_host;
 	if ((hpnt->this_id >= 0) && (sdebug_num_tgts > hpnt->this_id))
 		hpnt->max_id = sdebug_num_tgts + 1;
@@ -5633,12 +5633,12 @@ static int sdebug_driver_probe(struct device * dev)
 	sdebug_any_injecting_opt = !!(SDEBUG_OPT_ALL_INJECTING & sdebug_opts);
 	if (sdebug_every_nth)	/* need stats counters for every_nth */
 		sdebug_statistics = true;
-        error = scsi_add_host(hpnt, &sdbg_host->dev);
-        if (error) {
+	error = scsi_add_host(hpnt, &sdbg_host->dev);
+	if (error) {
 		pr_err("scsi_add_host failed\n");
-                error = -ENODEV;
+		error = -ENODEV;
 		scsi_host_put(hpnt);
-        } else
+	} else
 		scsi_scan_host(hpnt);
 
 	return error;
@@ -5646,7 +5646,7 @@ static int sdebug_driver_probe(struct device * dev)
 
 static int sdebug_driver_remove(struct device * dev)
 {
-        struct sdebug_host_info *sdbg_host;
+	struct sdebug_host_info *sdbg_host;
 	struct sdebug_dev_info *sdbg_devinfo, *tmp;
 
 	sdbg_host = to_sdebug_host(dev);
@@ -5656,16 +5656,16 @@ static int sdebug_driver_remove(struct device * dev)
 		return -ENODEV;
 	}
 
-        scsi_remove_host(sdbg_host->shost);
+	scsi_remove_host(sdbg_host->shost);
 
 	list_for_each_entry_safe(sdbg_devinfo, tmp, &sdbg_host->dev_info_list,
 				 dev_list) {
-                list_del(&sdbg_devinfo->dev_list);
-                kfree(sdbg_devinfo);
-        }
+		list_del(&sdbg_devinfo->dev_list);
+		kfree(sdbg_devinfo);
+	}
 
-        scsi_host_put(sdbg_host->shost);
-        return 0;
+	scsi_host_put(sdbg_host->shost);
+	return 0;
 }
 
 static int pseudo_lld_bus_match(struct device *dev,