SCSI misc on 20200613

This is the set of changes collected since just before the merge
 window opened.  It's mostly minor fixes in drivers.  The one
 non-driver set is the three optical disk (sr) changes where two are
 error path fixes and one is a helper conversion.  The big driver
 change is the hpsa compat_alloc_userspace rework by Al so he can kill
 the remaining user.  This has been tested and acked by the maintainer.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull more SCSI updates from James Bottomley:
 "This is the set of changes collected since just before the merge
  window opened. It's mostly minor fixes in drivers.

  The one non-driver set is the three optical disk (sr) changes where
  two are error path fixes and one is a helper conversion.

  The big driver change is the hpsa compat_alloc_userspace rework by Al
  so he can kill the remaining user. This has been tested and acked by
  the maintainer"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (21 commits)
  scsi: acornscsi: Fix an error handling path in acornscsi_probe()
  scsi: storvsc: Remove memset before memory freeing in storvsc_suspend()
  scsi: cxlflash: Remove an unnecessary NULL check
  scsi: ibmvscsi: Don't send host info in adapter info MAD after LPM
  scsi: sr: Fix sr_probe() missing deallocate of device minor
  scsi: sr: Fix sr_probe() missing mutex_destroy
  scsi: st: Convert convert get_user_pages() --> pin_user_pages()
  scsi: target: Rename target_setup_cmd_from_cdb() to target_cmd_parse_cdb()
  scsi: target: Fix NULL pointer dereference
  scsi: target: Initialize LUN in transport_init_se_cmd()
  scsi: target: Factor out a new helper, target_cmd_init_cdb()
  scsi: hpsa: hpsa_ioctl(): Tidy up a bit
  scsi: hpsa: Get rid of compat_alloc_user_space()
  scsi: hpsa: Don't bother with vmalloc for BIG_IOCTL_Command_struct
  scsi: hpsa: Lift {BIG_,}IOCTL_Command_struct copy{in,out} into hpsa_ioctl()
  scsi: ufs: Remove redundant urgent_bkop_lvl initialization
  scsi: ufs: Don't update urgent bkops level when toggling auto bkops
  scsi: qedf: Remove redundant initialization of variable rc
  scsi: mpt3sas: Fix memset() in non-RDPQ mode
  scsi: iscsi: Fix reference count leak in iscsi_boot_create_kobj
  ...

drivers/scsi/arm/acornscsi.c

@@ -2911,8 +2911,10 @@ static int acornscsi_probe(struct expansion_card *ec, const struct ecard_id *id)
 
 	ashost->base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
 	ashost->fast = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0);
-	if (!ashost->base || !ashost->fast)
+	if (!ashost->base || !ashost->fast) {
+		ret = -ENOMEM;
 		goto out_put;
+	}
 
 	host->irq = ec->irq;
 	ashost->host = host;

drivers/scsi/cxlflash/main.c

@@ -47,9 +47,6 @@ static void process_cmd_err(struct afu_cmd *cmd, struct scsi_cmnd *scp)
 	struct sisl_ioasa *ioasa;
 	u32 resid;
 
-	if (unlikely(!cmd))
-		return;
-
 	ioasa = &(cmd->sa);
 
 	if (ioasa->rc.flags & SISL_RC_FLAGS_UNDERRUN) {

drivers/scsi/hpsa.c

@@ -254,6 +254,10 @@ static irqreturn_t do_hpsa_intr_intx(int irq, void *dev_id);
 static irqreturn_t do_hpsa_intr_msi(int irq, void *dev_id);
 static int hpsa_ioctl(struct scsi_device *dev, unsigned int cmd,
 		      void __user *arg);
+static int hpsa_passthru_ioctl(struct ctlr_info *h,
+			       IOCTL_Command_struct *iocommand);
+static int hpsa_big_passthru_ioctl(struct ctlr_info *h,
+				   BIG_IOCTL_Command_struct *ioc);
 
 #ifdef CONFIG_COMPAT
 static int hpsa_compat_ioctl(struct scsi_device *dev, unsigned int cmd,
@@ -6217,75 +6221,63 @@ static void cmd_free(struct ctlr_info *h, struct CommandList *c)
 static int hpsa_ioctl32_passthru(struct scsi_device *dev, unsigned int cmd,
 	void __user *arg)
 {
-	IOCTL32_Command_struct __user *arg32 =
+	struct ctlr_info *h = sdev_to_hba(dev);
-	    (IOCTL32_Command_struct __user *) arg;
+	IOCTL32_Command_struct __user *arg32 = arg;
 	IOCTL_Command_struct arg64;
-	IOCTL_Command_struct __user *p = compat_alloc_user_space(sizeof(arg64));
 	int err;
 	u32 cp;
 
+	if (!arg)
+		return -EINVAL;
+
 	memset(&arg64, 0, sizeof(arg64));
-	err = 0;
+	if (copy_from_user(&arg64, arg32, offsetof(IOCTL_Command_struct, buf)))
-	err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
+		return -EFAULT;
-			   sizeof(arg64.LUN_info));
+	if (get_user(cp, &arg32->buf))
-	err |= copy_from_user(&arg64.Request, &arg32->Request,
+		return -EFAULT;
-			   sizeof(arg64.Request));
-	err |= copy_from_user(&arg64.error_info, &arg32->error_info,
-			   sizeof(arg64.error_info));
-	err |= get_user(arg64.buf_size, &arg32->buf_size);
-	err |= get_user(cp, &arg32->buf);
 	arg64.buf = compat_ptr(cp);
-	err |= copy_to_user(p, &arg64, sizeof(arg64));
 
-	if (err)
+	if (atomic_dec_if_positive(&h->passthru_cmds_avail) < 0)
-		return -EFAULT;
+		return -EAGAIN;
-
+	err = hpsa_passthru_ioctl(h, &arg64);
-	err = hpsa_ioctl(dev, CCISS_PASSTHRU, p);
+	atomic_inc(&h->passthru_cmds_avail);
 	if (err)
 		return err;
-	err |= copy_in_user(&arg32->error_info, &p->error_info,
+	if (copy_to_user(&arg32->error_info, &arg64.error_info,
-			 sizeof(arg32->error_info));
+			 sizeof(arg32->error_info)))
-	if (err)
 		return -EFAULT;
-	return err;
+	return 0;
 }
 
 static int hpsa_ioctl32_big_passthru(struct scsi_device *dev,
 	unsigned int cmd, void __user *arg)
 {
-	BIG_IOCTL32_Command_struct __user *arg32 =
+	struct ctlr_info *h = sdev_to_hba(dev);
-	    (BIG_IOCTL32_Command_struct __user *) arg;
+	BIG_IOCTL32_Command_struct __user *arg32 = arg;
 	BIG_IOCTL_Command_struct arg64;
-	BIG_IOCTL_Command_struct __user *p =
-	    compat_alloc_user_space(sizeof(arg64));
 	int err;
 	u32 cp;
 
+	if (!arg)
+		return -EINVAL;
 	memset(&arg64, 0, sizeof(arg64));
-	err = 0;
+	if (copy_from_user(&arg64, arg32,
-	err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
+			   offsetof(BIG_IOCTL32_Command_struct, buf)))
-			   sizeof(arg64.LUN_info));
+		return -EFAULT;
-	err |= copy_from_user(&arg64.Request, &arg32->Request,
+	if (get_user(cp, &arg32->buf))
-			   sizeof(arg64.Request));
+		return -EFAULT;
-	err |= copy_from_user(&arg64.error_info, &arg32->error_info,
-			   sizeof(arg64.error_info));
-	err |= get_user(arg64.buf_size, &arg32->buf_size);
-	err |= get_user(arg64.malloc_size, &arg32->malloc_size);
-	err |= get_user(cp, &arg32->buf);
 	arg64.buf = compat_ptr(cp);
-	err |= copy_to_user(p, &arg64, sizeof(arg64));
 
-	if (err)
+	if (atomic_dec_if_positive(&h->passthru_cmds_avail) < 0)
-		return -EFAULT;
+		return -EAGAIN;
-
+	err = hpsa_big_passthru_ioctl(h, &arg64);
-	err = hpsa_ioctl(dev, CCISS_BIG_PASSTHRU, p);
+	atomic_inc(&h->passthru_cmds_avail);
 	if (err)
 		return err;
-	err |= copy_in_user(&arg32->error_info, &p->error_info,
+	if (copy_to_user(&arg32->error_info, &arg64.error_info,
-			 sizeof(arg32->error_info));
+			 sizeof(arg32->error_info)))
-	if (err)
 		return -EFAULT;
-	return err;
+	return 0;
 }
 
 static int hpsa_compat_ioctl(struct scsi_device *dev, unsigned int cmd,
@@ -6358,37 +6350,33 @@ static int hpsa_getdrivver_ioctl(struct ctlr_info *h, void __user *argp)
 	return 0;
 }
 
-static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp)
+static int hpsa_passthru_ioctl(struct ctlr_info *h,
+			       IOCTL_Command_struct *iocommand)
 {
-	IOCTL_Command_struct iocommand;
 	struct CommandList *c;
 	char *buff = NULL;
 	u64 temp64;
 	int rc = 0;
 
-	if (!argp)
-		return -EINVAL;
 	if (!capable(CAP_SYS_RAWIO))
 		return -EPERM;
-	if (copy_from_user(&iocommand, argp, sizeof(iocommand)))
+	if ((iocommand->buf_size < 1) &&
-		return -EFAULT;
+	    (iocommand->Request.Type.Direction != XFER_NONE)) {
-	if ((iocommand.buf_size < 1) &&
-	    (iocommand.Request.Type.Direction != XFER_NONE)) {
 		return -EINVAL;
 	}
-	if (iocommand.buf_size > 0) {
+	if (iocommand->buf_size > 0) {
-		buff = kmalloc(iocommand.buf_size, GFP_KERNEL);
+		buff = kmalloc(iocommand->buf_size, GFP_KERNEL);
 		if (buff == NULL)
 			return -ENOMEM;
-		if (iocommand.Request.Type.Direction & XFER_WRITE) {
+		if (iocommand->Request.Type.Direction & XFER_WRITE) {
 			/* Copy the data into the buffer we created */
-			if (copy_from_user(buff, iocommand.buf,
+			if (copy_from_user(buff, iocommand->buf,
-				iocommand.buf_size)) {
+				iocommand->buf_size)) {
 				rc = -EFAULT;
 				goto out_kfree;
 			}
 		} else {
-			memset(buff, 0, iocommand.buf_size);
+			memset(buff, 0, iocommand->buf_size);
 		}
 	}
 	c = cmd_alloc(h);
@@ -6398,23 +6386,23 @@ static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp)
 	c->scsi_cmd = SCSI_CMD_BUSY;
 	/* Fill in Command Header */
 	c->Header.ReplyQueue = 0; /* unused in simple mode */
-	if (iocommand.buf_size > 0) {	/* buffer to fill */
+	if (iocommand->buf_size > 0) {	/* buffer to fill */
 		c->Header.SGList = 1;
 		c->Header.SGTotal = cpu_to_le16(1);
 	} else	{ /* no buffers to fill */
 		c->Header.SGList = 0;
 		c->Header.SGTotal = cpu_to_le16(0);
 	}
-	memcpy(&c->Header.LUN, &iocommand.LUN_info, sizeof(c->Header.LUN));
+	memcpy(&c->Header.LUN, &iocommand->LUN_info, sizeof(c->Header.LUN));
 
 	/* Fill in Request block */
-	memcpy(&c->Request, &iocommand.Request,
+	memcpy(&c->Request, &iocommand->Request,
 		sizeof(c->Request));
 
 	/* Fill in the scatter gather information */
-	if (iocommand.buf_size > 0) {
+	if (iocommand->buf_size > 0) {
 		temp64 = dma_map_single(&h->pdev->dev, buff,
-			iocommand.buf_size, DMA_BIDIRECTIONAL);
+			iocommand->buf_size, DMA_BIDIRECTIONAL);
 		if (dma_mapping_error(&h->pdev->dev, (dma_addr_t) temp64)) {
 			c->SG[0].Addr = cpu_to_le64(0);
 			c->SG[0].Len = cpu_to_le32(0);
@@ -6422,12 +6410,12 @@ static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp)
 			goto out;
 		}
 		c->SG[0].Addr = cpu_to_le64(temp64);
-		c->SG[0].Len = cpu_to_le32(iocommand.buf_size);
+		c->SG[0].Len = cpu_to_le32(iocommand->buf_size);
 		c->SG[0].Ext = cpu_to_le32(HPSA_SG_LAST); /* not chaining */
 	}
 	rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE,
 					NO_TIMEOUT);
-	if (iocommand.buf_size > 0)
+	if (iocommand->buf_size > 0)
 		hpsa_pci_unmap(h->pdev, c, 1, DMA_BIDIRECTIONAL);
 	check_ioctl_unit_attention(h, c);
 	if (rc) {
@@ -6436,16 +6424,12 @@ static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp)
 	}
 
 	/* Copy the error information out */
-	memcpy(&iocommand.error_info, c->err_info,
+	memcpy(&iocommand->error_info, c->err_info,
-		sizeof(iocommand.error_info));
+		sizeof(iocommand->error_info));
-	if (copy_to_user(argp, &iocommand, sizeof(iocommand))) {
+	if ((iocommand->Request.Type.Direction & XFER_READ) &&
-		rc = -EFAULT;
+		iocommand->buf_size > 0) {
-		goto out;
-	}
-	if ((iocommand.Request.Type.Direction & XFER_READ) &&
-		iocommand.buf_size > 0) {
 		/* Copy the data out of the buffer we created */
-		if (copy_to_user(iocommand.buf, buff, iocommand.buf_size)) {
+		if (copy_to_user(iocommand->buf, buff, iocommand->buf_size)) {
 			rc = -EFAULT;
 			goto out;
 		}
@@ -6457,9 +6441,9 @@ out_kfree:
 	return rc;
 }
 
-static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp)
+static int hpsa_big_passthru_ioctl(struct ctlr_info *h,
+				   BIG_IOCTL_Command_struct *ioc)
 {
-	BIG_IOCTL_Command_struct *ioc;
 	struct CommandList *c;
 	unsigned char **buff = NULL;
 	int *buff_size = NULL;
@@ -6470,29 +6454,17 @@ static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp)
 	u32 sz;
 	BYTE __user *data_ptr;
 
-	if (!argp)
-		return -EINVAL;
 	if (!capable(CAP_SYS_RAWIO))
 		return -EPERM;
-	ioc = vmemdup_user(argp, sizeof(*ioc));
+
-	if (IS_ERR(ioc)) {
-		status = PTR_ERR(ioc);
-		goto cleanup1;
-	}
 	if ((ioc->buf_size < 1) &&
-	    (ioc->Request.Type.Direction != XFER_NONE)) {
+	    (ioc->Request.Type.Direction != XFER_NONE))
-		status = -EINVAL;
+		return -EINVAL;
-		goto cleanup1;
-	}
 	/* Check kmalloc limits  using all SGs */
-	if (ioc->malloc_size > MAX_KMALLOC_SIZE) {
+	if (ioc->malloc_size > MAX_KMALLOC_SIZE)
-		status = -EINVAL;
+		return -EINVAL;
-		goto cleanup1;
+	if (ioc->buf_size > ioc->malloc_size * SG_ENTRIES_IN_CMD)
-	}
+		return -EINVAL;
-	if (ioc->buf_size > ioc->malloc_size * SG_ENTRIES_IN_CMD) {
-		status = -EINVAL;
-		goto cleanup1;
-	}
 	buff = kcalloc(SG_ENTRIES_IN_CMD, sizeof(char *), GFP_KERNEL);
 	if (!buff) {
 		status = -ENOMEM;
@@ -6565,10 +6537,6 @@ static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp)
 
 	/* Copy the error information out */
 	memcpy(&ioc->error_info, c->err_info, sizeof(ioc->error_info));
-	if (copy_to_user(argp, ioc, sizeof(*ioc))) {
-		status = -EFAULT;
-		goto cleanup0;
-	}
 	if ((ioc->Request.Type.Direction & XFER_READ) && ioc->buf_size > 0) {
 		int i;
 
@@ -6594,7 +6562,6 @@ cleanup1:
 		kfree(buff);
 	}
 	kfree(buff_size);
-	kvfree(ioc);
 	return status;
 }
 
@@ -6610,14 +6577,11 @@ static void check_ioctl_unit_attention(struct ctlr_info *h,
  * ioctl
  */
 static int hpsa_ioctl(struct scsi_device *dev, unsigned int cmd,
-		      void __user *arg)
+		      void __user *argp)
 {
-	struct ctlr_info *h;
+	struct ctlr_info *h = sdev_to_hba(dev);
-	void __user *argp = (void __user *)arg;
 	int rc;
 
-	h = sdev_to_hba(dev);
-
 	switch (cmd) {
 	case CCISS_DEREGDISK:
 	case CCISS_REGNEWDISK:
@@ -6628,18 +6592,35 @@ static int hpsa_ioctl(struct scsi_device *dev, unsigned int cmd,
 		return hpsa_getpciinfo_ioctl(h, argp);
 	case CCISS_GETDRIVVER:
 		return hpsa_getdrivver_ioctl(h, argp);
-	case CCISS_PASSTHRU:
+	case CCISS_PASSTHRU: {
+		IOCTL_Command_struct iocommand;
+
+		if (!argp)
+			return -EINVAL;
+		if (copy_from_user(&iocommand, argp, sizeof(iocommand)))
+			return -EFAULT;
 		if (atomic_dec_if_positive(&h->passthru_cmds_avail) < 0)
 			return -EAGAIN;
-		rc = hpsa_passthru_ioctl(h, argp);
+		rc = hpsa_passthru_ioctl(h, &iocommand);
 		atomic_inc(&h->passthru_cmds_avail);
+		if (!rc && copy_to_user(argp, &iocommand, sizeof(iocommand)))
+			rc = -EFAULT;
 		return rc;
-	case CCISS_BIG_PASSTHRU:
+	}
+	case CCISS_BIG_PASSTHRU: {
+		BIG_IOCTL_Command_struct ioc;
+		if (!argp)
+			return -EINVAL;
+		if (copy_from_user(&ioc, argp, sizeof(ioc)))
+			return -EFAULT;
 		if (atomic_dec_if_positive(&h->passthru_cmds_avail) < 0)
 			return -EAGAIN;
-		rc = hpsa_big_passthru_ioctl(h, argp);
+		rc = hpsa_big_passthru_ioctl(h, &ioc);
 		atomic_inc(&h->passthru_cmds_avail);
+		if (!rc && copy_to_user(argp, &ioc, sizeof(ioc)))
+			rc = -EFAULT;
 		return rc;
+	}
 	default:
 		return -ENOTTY;
 	}

drivers/scsi/ibmvscsi/ibmvscsi.c

@@ -415,6 +415,8 @@ static int ibmvscsi_reenable_crq_queue(struct crq_queue *queue,
 	int rc = 0;
 	struct vio_dev *vdev = to_vio_dev(hostdata->dev);
 
+	set_adapter_info(hostdata);
+
 	/* Re-enable the CRQ */
 	do {
 		if (rc)

drivers/scsi/iscsi_boot_sysfs.c

@@ -352,7 +352,7 @@ iscsi_boot_create_kobj(struct iscsi_boot_kset *boot_kset,
 	boot_kobj->kobj.kset = boot_kset->kset;
 	if (kobject_init_and_add(&boot_kobj->kobj, &iscsi_boot_ktype,
 				 NULL, name, index)) {
-		kfree(boot_kobj);
+		kobject_put(&boot_kobj->kobj);
 		return NULL;
 	}
 	boot_kobj->data = data;

drivers/scsi/mpt3sas/mpt3sas_base.c

@@ -4984,7 +4984,7 @@ base_alloc_rdpq_dma_pool(struct MPT3SAS_ADAPTER *ioc, int sz)
 	for (i = 0; i < count; i++) {
 		if ((i % RDPQ_MAX_INDEX_IN_ONE_CHUNK == 0) && dma_alloc_count) {
 			ioc->reply_post[i].reply_post_free =
-			    dma_pool_alloc(ioc->reply_post_free_dma_pool,
+			    dma_pool_zalloc(ioc->reply_post_free_dma_pool,
 				GFP_KERNEL,
 				&ioc->reply_post[i].reply_post_free_dma);
 			if (!ioc->reply_post[i].reply_post_free)
@@ -5008,9 +5008,6 @@ base_alloc_rdpq_dma_pool(struct MPT3SAS_ADAPTER *ioc, int sz)
 				    ioc->reply_post[i].reply_post_free_dma));
 				return -EAGAIN;
 			}
-			memset(ioc->reply_post[i].reply_post_free, 0,
-						RDPQ_MAX_INDEX_IN_ONE_CHUNK *
-						reply_post_free_sz);
 			dma_alloc_count--;
 
 		} else {

drivers/scsi/qedf/qedf_fip.c

@@ -20,7 +20,7 @@ void qedf_fcoe_send_vlan_req(struct qedf_ctx *qedf)
 #define MY_FIP_ALL_FCF_MACS        ((__u8[6]) { 1, 0x10, 0x18, 1, 0, 2 })
 	static u8 my_fcoe_all_fcfs[ETH_ALEN] = MY_FIP_ALL_FCF_MACS;
 	unsigned long flags = 0;
-	int rc = -1;
+	int rc;
 
 	skb = dev_alloc_skb(sizeof(struct fip_vlan));
 	if (!skb) {

drivers/scsi/sr.c

@@ -792,7 +792,7 @@ static int sr_probe(struct device *dev)
 	disk->queue = sdev->request_queue;
 
 	if (register_cdrom(disk, &cd->cdi))
-		goto fail_put;
+		goto fail_minor;
 
 	/*
 	 * Initialize block layer runtime PM stuffs before the
@@ -810,8 +810,13 @@ static int sr_probe(struct device *dev)
 
 	return 0;
 
+fail_minor:
+	spin_lock(&sr_index_lock);
+	clear_bit(minor, sr_index_bits);
+	spin_unlock(&sr_index_lock);
 fail_put:
 	put_disk(disk);
+	mutex_destroy(&cd->lock);
 fail_free:
 	kfree(cd);
 fail:

drivers/scsi/st.c

@@ -4921,7 +4921,7 @@ static int sgl_map_user_pages(struct st_buffer *STbp,
 	unsigned long end = (uaddr + count + PAGE_SIZE - 1) >> PAGE_SHIFT;
 	unsigned long start = uaddr >> PAGE_SHIFT;
 	const int nr_pages = end - start;
-	int res, i, j;
+	int res, i;
 	struct page **pages;
 	struct rq_map_data *mdata = &STbp->map_data;
 
@@ -4943,7 +4943,7 @@ static int sgl_map_user_pages(struct st_buffer *STbp,
 
         /* Try to fault in all of the necessary pages */
         /* rw==READ means read from drive, write into memory area */
-	res = get_user_pages_fast(uaddr, nr_pages, rw == READ ? FOLL_WRITE : 0,
+	res = pin_user_pages_fast(uaddr, nr_pages, rw == READ ? FOLL_WRITE : 0,
 				  pages);
 
 	/* Errors and no page mapped should return here */
@@ -4963,8 +4963,7 @@ static int sgl_map_user_pages(struct st_buffer *STbp,
 	return nr_pages;
  out_unmap:
 	if (res > 0) {
-		for (j=0; j < res; j++)
+		unpin_user_pages(pages, res);
-			put_page(pages[j]);
 		res = 0;
 	}
 	kfree(pages);
@@ -4976,18 +4975,9 @@ static int sgl_map_user_pages(struct st_buffer *STbp,
 static int sgl_unmap_user_pages(struct st_buffer *STbp,
 				const unsigned int nr_pages, int dirtied)
 {
-	int i;
+	/* FIXME: cache flush missing for rw==READ */
+	unpin_user_pages_dirty_lock(STbp->mapped_pages, nr_pages, dirtied);
 
-	for (i=0; i < nr_pages; i++) {
-		struct page *page = STbp->mapped_pages[i];
-
-		if (dirtied)
-			SetPageDirty(page);
-		/* FIXME: cache flush missing for rw==READ
-		 * FIXME: call the correct reference counting function
-		 */
-		put_page(page);
-	}
 	kfree(STbp->mapped_pages);
 	STbp->mapped_pages = NULL;
 

drivers/scsi/storvsc_drv.c

@@ -2035,9 +2035,6 @@ static int storvsc_suspend(struct hv_device *hv_dev)
 
 	vmbus_close(hv_dev->channel);
 
-	memset(stor_device->stor_chns, 0,
-	       num_possible_cpus() * sizeof(void *));
-
 	kfree(stor_device->stor_chns);
 	stor_device->stor_chns = NULL;
 

drivers/scsi/ufs/ufshcd.c

@@ -5076,6 +5076,7 @@ static void ufshcd_force_reset_auto_bkops(struct ufs_hba *hba)
 		hba->ee_ctrl_mask &= ~MASK_EE_URGENT_BKOPS;
 		ufshcd_disable_auto_bkops(hba);
 	}
+	hba->urgent_bkops_lvl = BKOPS_STATUS_PERF_IMPACT;
 	hba->is_urgent_bkops_lvl_checked = false;
 }
 
@@ -5123,7 +5124,6 @@ static int ufshcd_bkops_ctrl(struct ufs_hba *hba,
 		err = ufshcd_enable_auto_bkops(hba);
 	else
 		err = ufshcd_disable_auto_bkops(hba);
-	hba->urgent_bkops_lvl = curr_status;
 out:
 	return err;
 }
@@ -7373,10 +7373,6 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool async)
 	if (ret)
 		goto out;
 
-	/* set the default level for urgent bkops */
-	hba->urgent_bkops_lvl = BKOPS_STATUS_PERF_IMPACT;
-	hba->is_urgent_bkops_lvl_checked = false;
-
 	/* Debug counters initialization */
 	ufshcd_clear_dbg_ufs_stats(hba);
 

drivers/target/iscsi/iscsi_target.c

@@ -1158,7 +1158,7 @@ int iscsit_setup_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 	transport_init_se_cmd(&cmd->se_cmd, &iscsi_ops,
 			conn->sess->se_sess, be32_to_cpu(hdr->data_length),
 			cmd->data_direction, sam_task_attr,
-			cmd->sense_buffer + 2);
+			cmd->sense_buffer + 2, scsilun_to_int(&hdr->lun));
 
 	pr_debug("Got SCSI Command, ITT: 0x%08x, CmdSN: 0x%08x,"
 		" ExpXferLen: %u, Length: %u, CID: %hu\n", hdr->itt,
@@ -1167,14 +1167,7 @@ int iscsit_setup_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 
 	target_get_sess_cmd(&cmd->se_cmd, true);
 
-	cmd->sense_reason = transport_lookup_cmd_lun(&cmd->se_cmd,
+	cmd->sense_reason = target_cmd_init_cdb(&cmd->se_cmd, hdr->cdb);
-						     scsilun_to_int(&hdr->lun));
-	if (cmd->sense_reason)
-		goto attach_cmd;
-
-	/* only used for printks or comparing with ->ref_task_tag */
-	cmd->se_cmd.tag = (__force u32)cmd->init_task_tag;
-	cmd->sense_reason = target_setup_cmd_from_cdb(&cmd->se_cmd, hdr->cdb);
 	if (cmd->sense_reason) {
 		if (cmd->sense_reason == TCM_OUT_OF_RESOURCES) {
 			return iscsit_add_reject_cmd(cmd,
@@ -1184,6 +1177,16 @@ int iscsit_setup_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 		goto attach_cmd;
 	}
 
+	cmd->sense_reason = transport_lookup_cmd_lun(&cmd->se_cmd);
+	if (cmd->sense_reason)
+		goto attach_cmd;
+
+	/* only used for printks or comparing with ->ref_task_tag */
+	cmd->se_cmd.tag = (__force u32)cmd->init_task_tag;
+	cmd->sense_reason = target_cmd_parse_cdb(&cmd->se_cmd);
+	if (cmd->sense_reason)
+		goto attach_cmd;
+
 	if (iscsit_build_pdu_and_seq_lists(cmd, payload_length) < 0) {
 		return iscsit_add_reject_cmd(cmd,
 				ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
@@ -2000,7 +2003,8 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 
 	transport_init_se_cmd(&cmd->se_cmd, &iscsi_ops,
 			      conn->sess->se_sess, 0, DMA_NONE,
-			      TCM_SIMPLE_TAG, cmd->sense_buffer + 2);
+			      TCM_SIMPLE_TAG, cmd->sense_buffer + 2,
+			      scsilun_to_int(&hdr->lun));
 
 	target_get_sess_cmd(&cmd->se_cmd, true);
 
@@ -2038,8 +2042,7 @@ iscsit_handle_task_mgt_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 	 * Locate the struct se_lun for all TMRs not related to ERL=2 TASK_REASSIGN
 	 */
 	if (function != ISCSI_TM_FUNC_TASK_REASSIGN) {
-		ret = transport_lookup_tmr_lun(&cmd->se_cmd,
+		ret = transport_lookup_tmr_lun(&cmd->se_cmd);
-					       scsilun_to_int(&hdr->lun));
 		if (ret < 0) {
 			se_tmr->response = ISCSI_TMF_RSP_NO_LUN;
 			goto attach;

drivers/target/target_core_device.c

@@ -45,7 +45,7 @@ static struct se_hba *lun0_hba;
 struct se_device *g_lun0_dev;
 
 sense_reason_t
-transport_lookup_cmd_lun(struct se_cmd *se_cmd, u64 unpacked_lun)
+transport_lookup_cmd_lun(struct se_cmd *se_cmd)
 {
 	struct se_lun *se_lun = NULL;
 	struct se_session *se_sess = se_cmd->se_sess;
@@ -54,7 +54,7 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u64 unpacked_lun)
 	sense_reason_t ret = TCM_NO_SENSE;
 
 	rcu_read_lock();
-	deve = target_nacl_find_deve(nacl, unpacked_lun);
+	deve = target_nacl_find_deve(nacl, se_cmd->orig_fe_lun);
 	if (deve) {
 		atomic_long_inc(&deve->total_cmds);
 
@@ -74,7 +74,6 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u64 unpacked_lun)
 
 		se_cmd->se_lun = se_lun;
 		se_cmd->pr_res_key = deve->pr_res_key;
-		se_cmd->orig_fe_lun = unpacked_lun;
 		se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
 		se_cmd->lun_ref_active = true;
 
@@ -83,7 +82,7 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u64 unpacked_lun)
 			pr_err("TARGET_CORE[%s]: Detected WRITE_PROTECTED LUN"
 				" Access for 0x%08llx\n",
 				se_cmd->se_tfo->fabric_name,
-				unpacked_lun);
+				se_cmd->orig_fe_lun);
 			rcu_read_unlock();
 			ret = TCM_WRITE_PROTECTED;
 			goto ref_dev;
@@ -98,18 +97,17 @@ out_unlock:
 		 * REPORT_LUNS, et al to be returned when no active
 		 * MappedLUN=0 exists for this Initiator Port.
 		 */
-		if (unpacked_lun != 0) {
+		if (se_cmd->orig_fe_lun != 0) {
 			pr_err("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN"
 				" Access for 0x%08llx from %s\n",
 				se_cmd->se_tfo->fabric_name,
-				unpacked_lun,
+				se_cmd->orig_fe_lun,
 				nacl->initiatorname);
 			return TCM_NON_EXISTENT_LUN;
 		}
 
 		se_lun = se_sess->se_tpg->tpg_virt_lun0;
 		se_cmd->se_lun = se_sess->se_tpg->tpg_virt_lun0;
-		se_cmd->orig_fe_lun = 0;
 		se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
 
 		percpu_ref_get(&se_lun->lun_ref);
@@ -145,7 +143,7 @@ ref_dev:
 }
 EXPORT_SYMBOL(transport_lookup_cmd_lun);
 
-int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u64 unpacked_lun)
+int transport_lookup_tmr_lun(struct se_cmd *se_cmd)
 {
 	struct se_dev_entry *deve;
 	struct se_lun *se_lun = NULL;
@@ -155,7 +153,7 @@ int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u64 unpacked_lun)
 	unsigned long flags;
 
 	rcu_read_lock();
-	deve = target_nacl_find_deve(nacl, unpacked_lun);
+	deve = target_nacl_find_deve(nacl, se_cmd->orig_fe_lun);
 	if (deve) {
 		se_lun = rcu_dereference(deve->se_lun);
 
@@ -166,7 +164,6 @@ int transport_lookup_tmr_lun(struct se_cmd *se_cmd, u64 unpacked_lun)
 
 		se_cmd->se_lun = se_lun;
 		se_cmd->pr_res_key = deve->pr_res_key;
-		se_cmd->orig_fe_lun = unpacked_lun;
 		se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
 		se_cmd->lun_ref_active = true;
 	}
@@ -177,7 +174,7 @@ out_unlock:
 		pr_debug("TARGET_CORE[%s]: Detected NON_EXISTENT_LUN"
 			" Access for 0x%08llx for %s\n",
 			se_cmd->se_tfo->fabric_name,
-			unpacked_lun,
+			se_cmd->orig_fe_lun,
 			nacl->initiatorname);
 		return -ENODEV;
 	}

drivers/target/target_core_tmr.c

@@ -148,8 +148,8 @@ void core_tmr_abort_task(
 		 * code.
 		 */
 		if (!tmr->tmr_dev)
-			WARN_ON_ONCE(transport_lookup_tmr_lun(tmr->task_cmd,
+			WARN_ON_ONCE(transport_lookup_tmr_lun(tmr->task_cmd) <
-						se_cmd->orig_fe_lun) < 0);
+					0);
 
 		target_put_cmd_and_wait(se_cmd);
 

drivers/target/target_core_transport.c

@@ -1364,7 +1364,7 @@ void transport_init_se_cmd(
 	u32 data_length,
 	int data_direction,
 	int task_attr,
-	unsigned char *sense_buffer)
+	unsigned char *sense_buffer, u64 unpacked_lun)
 {
 	INIT_LIST_HEAD(&cmd->se_delayed_node);
 	INIT_LIST_HEAD(&cmd->se_qf_node);
@@ -1383,6 +1383,7 @@ void transport_init_se_cmd(
 	cmd->data_direction = data_direction;
 	cmd->sam_task_attr = task_attr;
 	cmd->sense_buffer = sense_buffer;
+	cmd->orig_fe_lun = unpacked_lun;
 
 	cmd->state_active = false;
 }
@@ -1410,11 +1411,11 @@ transport_check_alloc_task_attr(struct se_cmd *cmd)
 }
 
 sense_reason_t
-target_setup_cmd_from_cdb(struct se_cmd *cmd, unsigned char *cdb)
+target_cmd_init_cdb(struct se_cmd *cmd, unsigned char *cdb)
 {
-	struct se_device *dev = cmd->se_dev;
 	sense_reason_t ret;
 
+	cmd->t_task_cdb = &cmd->__t_task_cdb[0];
 	/*
 	 * Ensure that the received CDB is less than the max (252 + 8) bytes
 	 * for VARIABLE_LENGTH_CMD
@@ -1423,7 +1424,8 @@ target_setup_cmd_from_cdb(struct se_cmd *cmd, unsigned char *cdb)
 		pr_err("Received SCSI CDB with command_size: %d that"
 			" exceeds SCSI_MAX_VARLEN_CDB_SIZE: %d\n",
 			scsi_command_size(cdb), SCSI_MAX_VARLEN_CDB_SIZE);
-		return TCM_INVALID_CDB_FIELD;
+		ret = TCM_INVALID_CDB_FIELD;
+		goto err;
 	}
 	/*
 	 * If the received CDB is larger than TCM_MAX_COMMAND_SIZE,
@@ -1438,16 +1440,34 @@ target_setup_cmd_from_cdb(struct se_cmd *cmd, unsigned char *cdb)
 				" %u > sizeof(cmd->__t_task_cdb): %lu ops\n",
 				scsi_command_size(cdb),
 				(unsigned long)sizeof(cmd->__t_task_cdb));
-			return TCM_OUT_OF_RESOURCES;
+			ret = TCM_OUT_OF_RESOURCES;
+			goto err;
+		}
 	}
-	} else
-		cmd->t_task_cdb = &cmd->__t_task_cdb[0];
 	/*
 	 * Copy the original CDB into cmd->
 	 */
 	memcpy(cmd->t_task_cdb, cdb, scsi_command_size(cdb));
 
 	trace_target_sequencer_start(cmd);
+	return 0;
+
+err:
+	/*
+	 * Copy the CDB here to allow trace_target_cmd_complete() to
+	 * print the cdb to the trace buffers.
+	 */
+	memcpy(cmd->t_task_cdb, cdb, min(scsi_command_size(cdb),
+					 (unsigned int)TCM_MAX_COMMAND_SIZE));
+	return ret;
+}
+EXPORT_SYMBOL(target_cmd_init_cdb);
+
+sense_reason_t
+target_cmd_parse_cdb(struct se_cmd *cmd)
+{
+	struct se_device *dev = cmd->se_dev;
+	sense_reason_t ret;
 
 	ret = dev->transport->parse_cdb(cmd);
 	if (ret == TCM_UNSUPPORTED_SCSI_OPCODE)
@@ -1466,7 +1486,7 @@ target_setup_cmd_from_cdb(struct se_cmd *cmd, unsigned char *cdb)
 	atomic_long_inc(&cmd->se_lun->lun_stats.cmd_pdus);
 	return 0;
 }
-EXPORT_SYMBOL(target_setup_cmd_from_cdb);
+EXPORT_SYMBOL(target_cmd_parse_cdb);
 
 /*
  * Used by fabric module frontends to queue tasks directly.
@@ -1588,7 +1608,8 @@ int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess
 	 * target_core_fabric_ops->queue_status() callback
 	 */
 	transport_init_se_cmd(se_cmd, se_tpg->se_tpg_tfo, se_sess,
-				data_length, data_dir, task_attr, sense);
+				data_length, data_dir, task_attr, sense,
+				unpacked_lun);
 
 	if (flags & TARGET_SCF_USE_CPUID)
 		se_cmd->se_cmd_flags |= SCF_USE_CPUID;
@@ -1611,17 +1632,25 @@ int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess
 	 */
 	if (flags & TARGET_SCF_BIDI_OP)
 		se_cmd->se_cmd_flags |= SCF_BIDI;
-	/*
+
-	 * Locate se_lun pointer and attach it to struct se_cmd
+	rc = target_cmd_init_cdb(se_cmd, cdb);
-	 */
-	rc = transport_lookup_cmd_lun(se_cmd, unpacked_lun);
 	if (rc) {
 		transport_send_check_condition_and_sense(se_cmd, rc, 0);
 		target_put_sess_cmd(se_cmd);
 		return 0;
 	}
 
-	rc = target_setup_cmd_from_cdb(se_cmd, cdb);
+	/*
+	 * Locate se_lun pointer and attach it to struct se_cmd
+	 */
+	rc = transport_lookup_cmd_lun(se_cmd);
+	if (rc) {
+		transport_send_check_condition_and_sense(se_cmd, rc, 0);
+		target_put_sess_cmd(se_cmd);
+		return 0;
+	}
+
+	rc = target_cmd_parse_cdb(se_cmd);
 	if (rc != 0) {
 		transport_generic_request_failure(se_cmd, rc);
 		return 0;
@@ -1782,7 +1811,7 @@ int target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess,
 	BUG_ON(!se_tpg);
 
 	transport_init_se_cmd(se_cmd, se_tpg->se_tpg_tfo, se_sess,
-			      0, DMA_NONE, TCM_SIMPLE_TAG, sense);
+			      0, DMA_NONE, TCM_SIMPLE_TAG, sense, unpacked_lun);
 	/*
 	 * FIXME: Currently expect caller to handle se_cmd->se_tmr_req
 	 * allocation failure.
@@ -1810,7 +1839,7 @@ int target_submit_tmr(struct se_cmd *se_cmd, struct se_session *se_sess,
 			goto failure;
 	}
 
-	ret = transport_lookup_tmr_lun(se_cmd, unpacked_lun);
+	ret = transport_lookup_tmr_lun(se_cmd);
 	if (ret)
 		goto failure;
 

drivers/target/target_core_user.c

@@ -1007,7 +1007,7 @@ static int queue_cmd_ring(struct tcmu_cmd *tcmu_cmd, sense_reason_t *scsi_err)
 		entry->hdr.cmd_id = 0; /* not used for PAD */
 		entry->hdr.kflags = 0;
 		entry->hdr.uflags = 0;
-		tcmu_flush_dcache_range(entry, sizeof(*entry));
+		tcmu_flush_dcache_range(entry, sizeof(entry->hdr));
 
 		UPDATE_HEAD(mb->cmd_head, pad_size, udev->cmdr_size);
 		tcmu_flush_dcache_range(mb, sizeof(*mb));
@@ -1072,7 +1072,7 @@ static int queue_cmd_ring(struct tcmu_cmd *tcmu_cmd, sense_reason_t *scsi_err)
 	cdb_off = CMDR_OFF + cmd_head + base_command_size;
 	memcpy((void *) mb + cdb_off, se_cmd->t_task_cdb, scsi_command_size(se_cmd->t_task_cdb));
 	entry->req.cdb_off = cdb_off;
-	tcmu_flush_dcache_range(entry, sizeof(*entry));
+	tcmu_flush_dcache_range(entry, command_size);
 
 	UPDATE_HEAD(mb->cmd_head, command_size, udev->cmdr_size);
 	tcmu_flush_dcache_range(mb, sizeof(*mb));

drivers/target/target_core_xcopy.c

@@ -526,8 +526,11 @@ static int target_xcopy_setup_pt_cmd(
 	}
 	cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
 
+	if (target_cmd_init_cdb(cmd, cdb))
+		return -EINVAL;
+
 	cmd->tag = 0;
-	if (target_setup_cmd_from_cdb(cmd, cdb))
+	if (target_cmd_parse_cdb(cmd))
 		return -EINVAL;
 
 	if (transport_generic_map_mem_to_cmd(cmd, xop->xop_data_sg,
@@ -585,7 +588,7 @@ static int target_xcopy_read_source(
 		(unsigned long long)src_lba, src_sectors, length);
 
 	transport_init_se_cmd(se_cmd, &xcopy_pt_tfo, &xcopy_pt_sess, length,
-			      DMA_FROM_DEVICE, 0, &xpt_cmd.sense_buffer[0]);
+			      DMA_FROM_DEVICE, 0, &xpt_cmd.sense_buffer[0], 0);
 
 	rc = target_xcopy_setup_pt_cmd(&xpt_cmd, xop, src_dev, &cdb[0],
 				remote_port);
@@ -630,7 +633,7 @@ static int target_xcopy_write_destination(
 		(unsigned long long)dst_lba, dst_sectors, length);
 
 	transport_init_se_cmd(se_cmd, &xcopy_pt_tfo, &xcopy_pt_sess, length,
-			      DMA_TO_DEVICE, 0, &xpt_cmd.sense_buffer[0]);
+			      DMA_TO_DEVICE, 0, &xpt_cmd.sense_buffer[0], 0);
 
 	rc = target_xcopy_setup_pt_cmd(&xpt_cmd, xop, dst_dev, &cdb[0],
 				remote_port);

drivers/usb/gadget/function/f_tcm.c

@@ -1052,7 +1052,8 @@ static void usbg_cmd_work(struct work_struct *work)
 		transport_init_se_cmd(se_cmd,
 				tv_nexus->tvn_se_sess->se_tpg->se_tpg_tfo,
 				tv_nexus->tvn_se_sess, cmd->data_len, DMA_NONE,
-				cmd->prio_attr, cmd->sense_iu.sense);
+				cmd->prio_attr, cmd->sense_iu.sense,
+				cmd->unpacked_lun);
 		goto out;
 	}
 
@@ -1182,7 +1183,8 @@ static void bot_cmd_work(struct work_struct *work)
 		transport_init_se_cmd(se_cmd,
 				tv_nexus->tvn_se_sess->se_tpg->se_tpg_tfo,
 				tv_nexus->tvn_se_sess, cmd->data_len, DMA_NONE,
-				cmd->prio_attr, cmd->sense_iu.sense);
+				cmd->prio_attr, cmd->sense_iu.sense,
+				cmd->unpacked_lun);
 		goto out;
 	}
 

include/target/target_core_fabric.h

@@ -150,9 +150,10 @@ void	transport_deregister_session(struct se_session *);
 
 void	transport_init_se_cmd(struct se_cmd *,
 		const struct target_core_fabric_ops *,
-		struct se_session *, u32, int, int, unsigned char *);
+		struct se_session *, u32, int, int, unsigned char *, u64);
-sense_reason_t transport_lookup_cmd_lun(struct se_cmd *, u64);
+sense_reason_t transport_lookup_cmd_lun(struct se_cmd *);
-sense_reason_t target_setup_cmd_from_cdb(struct se_cmd *, unsigned char *);
+sense_reason_t target_cmd_init_cdb(struct se_cmd *, unsigned char *);
+sense_reason_t target_cmd_parse_cdb(struct se_cmd *);
 int	target_submit_cmd_map_sgls(struct se_cmd *, struct se_session *,
 		unsigned char *, unsigned char *, u64, u32, int, int, int,
 		struct scatterlist *, u32, struct scatterlist *, u32,
@@ -187,7 +188,7 @@ int	core_tmr_alloc_req(struct se_cmd *, void *, u8, gfp_t);
 void	core_tmr_release_req(struct se_tmr_req *);
 int	transport_generic_handle_tmr(struct se_cmd *);
 void	transport_generic_request_failure(struct se_cmd *, sense_reason_t);
-int	transport_lookup_tmr_lun(struct se_cmd *, u64);
+int	transport_lookup_tmr_lun(struct se_cmd *);
 void	core_allocate_nexus_loss_ua(struct se_node_acl *acl);
 
 struct se_node_acl *core_tpg_get_initiator_node_acl(struct se_portal_group *tpg,