diff --git a/Documentation/scsi/scsi_mid_low_api.rst b/Documentation/scsi/scsi_mid_low_api.rst
index a93df7c3ae50..9d15e20b0b5e 100644
--- a/Documentation/scsi/scsi_mid_low_api.rst
+++ b/Documentation/scsi/scsi_mid_low_api.rst
@@ -101,7 +101,7 @@ supplied functions" below.
 Those functions in group b) are listed in a section entitled "Interface
 functions" below. Their function pointers are placed in the members of
 "struct scsi_host_template", an instance of which is passed to
-scsi_host_alloc() [#]_.  Those interface functions that the LLD does not
+scsi_host_alloc().  Those interface functions that the LLD does not
 wish to supply should have NULL placed in the corresponding member of
 struct scsi_host_template.  Defining an instance of struct
 scsi_host_template at file scope will cause NULL to be  placed in function
@@ -116,9 +116,6 @@ should be static. For example the sdev_init() function in an LLD
 called "xxx" could be defined as
 ``static int xxx_sdev_init(struct scsi_device * sdev) { /* code */ }``
 
-.. [#] the scsi_host_alloc() function is a replacement for the rather vaguely
-       named scsi_register() function in most situations.
-
 
 Hotplug initialization model
 ============================
@@ -302,14 +299,12 @@ Summary:
   - scsi_host_alloc - return a new scsi_host instance whose refcount==1
   - scsi_host_get - increments Scsi_Host instance's refcount
   - scsi_host_put - decrements Scsi_Host instance's refcount (free if 0)
-  - scsi_register - create and register a scsi host adapter instance.
   - scsi_remove_device - detach and remove a SCSI device
   - scsi_remove_host - detach and remove all SCSI devices owned by host
   - scsi_report_bus_reset - report scsi _bus_ reset observed
   - scsi_scan_host - scan SCSI bus
   - scsi_track_queue_full - track successive QUEUE_FULL events
   - scsi_unblock_requests - allow further commands to be queued to given host
-  - scsi_unregister - [calls scsi_host_put()]
 
 
 Details::
@@ -474,27 +469,6 @@ Details::
     void scsi_host_put(struct Scsi_Host *shost)
 
 
-    /**
-    * scsi_register - create and register a scsi host adapter instance.
-    * @sht:        pointer to scsi host template
-    * @privsize:   extra bytes to allocate in hostdata array (which is the
-    *              last member of the returned Scsi_Host instance)
-    *
-    *      Returns pointer to new Scsi_Host instance or NULL on failure
-    *
-    *      Might block: yes
-    *
-    *      Notes: When this call returns to the LLD, the SCSI bus scan on
-    *      this host has _not_ yet been done.
-    *      The hostdata array (by default zero length) is a per host scratch
-    *      area for the LLD.
-    *
-    *      Defined in: drivers/scsi/hosts.c .
-    **/
-    struct Scsi_Host * scsi_register(struct scsi_host_template * sht,
-				    int privsize)
-
-
     /**
     * scsi_remove_device - detach and remove a SCSI device
     * @sdev:      a pointer to a scsi device instance
@@ -524,7 +498,7 @@ Details::
     *
     *      Notes: Should only be invoked if the "hotplug initialization
     *      model" is being used. It should be called _prior_ to
-    *      scsi_unregister().
+    *      calling scsi_host_put().
     *
     *      Defined in: drivers/scsi/hosts.c .
     **/
@@ -601,31 +575,12 @@ Details::
     void scsi_unblock_requests(struct Scsi_Host * shost)
 
 
-    /**
-    * scsi_unregister - unregister and free memory used by host instance
-    * @shp:        pointer to scsi host instance to unregister.
-    *
-    *      Returns nothing
-    *
-    *      Might block: no
-    *
-    *      Notes: Should not be invoked if the "hotplug initialization
-    *      model" is being used. Called internally by exit_this_scsi_driver()
-    *      in the "passive initialization model". Hence a LLD has no need to
-    *      call this function directly.
-    *
-    *      Defined in: drivers/scsi/hosts.c .
-    **/
-    void scsi_unregister(struct Scsi_Host * shp)
-
-
-
 
 Interface Functions
 ===================
 Interface functions are supplied (defined) by LLDs and their function
 pointers are placed in an instance of struct scsi_host_template which
-is passed to scsi_host_alloc() [or scsi_register() / init_this_scsi_driver()].
+is passed to scsi_host_alloc().
 Some are mandatory. Interface functions should be declared static. The
 accepted convention is that driver "xyz" will declare its sdev_configure()
 function as::
@@ -636,8 +591,8 @@ and so forth for all interface functions listed below.
 
 A pointer to this function should be placed in the 'sdev_configure' member
 of a "struct scsi_host_template" instance. A pointer to such an instance
-should be passed to the mid level's scsi_host_alloc() [or scsi_register() /
-init_this_scsi_driver()].
+should be passed to the mid level's scsi_host_alloc().
+.
 
 The interface functions are also described in the include/scsi/scsi_host.h
 file immediately above their definition point in "struct scsi_host_template".
@@ -817,10 +772,6 @@ Details::
     *      The SCSI_IOCTL_PROBE_HOST ioctl yields the string returned by this
     *      function (or struct Scsi_Host::name if this function is not
     *      available).
-    *      In a similar manner, init_this_scsi_driver() outputs to the console
-    *      each host's "info" (or name) for the driver it is registering.
-    *      Also if proc_info() is not supplied, the output of this function
-    *      is used instead.
     *
     *      Optionally defined in: LLD
     **/
@@ -1115,7 +1066,7 @@ of interest:
     hostdata[0]
 		 - area reserved for LLD at end of struct Scsi_Host. Size
                    is set by the second argument (named 'xtr_bytes') to
-                   scsi_host_alloc() or scsi_register().
+                   scsi_host_alloc().
     vendor_id
 		 - a unique value that identifies the vendor supplying
                    the LLD for the Scsi_Host.  Used most often in validating
diff --git a/MAINTAINERS b/MAINTAINERS
index a4aef1f8bb9d..2f44cc6827f2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -20754,8 +20754,7 @@ F:	arch/s390/include/uapi/asm/zcrypt.h
 F:	drivers/s390/crypto/
 
 S390 ZFCP DRIVER
-M:	Steffen Maier <maier@linux.ibm.com>
-M:	Benjamin Block <bblock@linux.ibm.com>
+M:	Nihar Panda <niharp@linux.ibm.com>
 L:	linux-s390@vger.kernel.org
 S:	Supported
 F:	drivers/s390/scsi/zfcp_*
diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index d6516ab00437..1d50f463afe7 100644
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -537,6 +537,11 @@ static void zfcp_fc_adisc_handler(void *data)
 	/* port is still good, nothing to do */
  out:
 	atomic_andnot(ZFCP_STATUS_PORT_LINK_TEST, &port->status);
+	/*
+	 * port ref comes from get_device() in zfcp_fc_test_link() and
+	 * work item zfcp_fc_link_test_work() passes ref via
+	 * zfcp_fc_adisc() to here, if zfcp_fc_adisc() could send ADISC
+	 */
 	put_device(&port->dev);
 	kmem_cache_free(zfcp_fc_req_cache, fc_req);
 }
@@ -603,7 +608,7 @@ void zfcp_fc_link_test_work(struct work_struct *work)
 
 	retval = zfcp_fc_adisc(port);
 	if (retval == 0)
-		return;
+		return; /* port ref passed to zfcp_fc_adisc(), no put here */
 
 	/* send of ADISC was not possible */
 	atomic_andnot(ZFCP_STATUS_PORT_LINK_TEST, &port->status);
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 22e82000334a..99d6b3f8692b 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -1218,7 +1218,7 @@ static int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req,
 /**
  * zfcp_fsf_send_ct - initiate a Generic Service request (FC-GS)
  * @wka_port: pointer to zfcp WKA port to send CT/GS to
- * @ct: pointer to struct zfcp_send_ct with data for request
+ * @ct: pointer to struct zfcp_fsf_ct_els with data for CT request
  * @pool: if non-null this mempool is used to allocate struct zfcp_fsf_req
  * @timeout: timeout that hardware should use, and a later software timeout
  */
@@ -1316,7 +1316,7 @@ skip_fsfstatus:
  * zfcp_fsf_send_els - initiate an ELS command (FC-FS)
  * @adapter: pointer to zfcp adapter
  * @d_id: N_Port_ID to send ELS to
- * @els: pointer to struct zfcp_send_els with data for the command
+ * @els: pointer to struct zfcp_fsf_ct_els with data for the ELS command
  * @timeout: timeout that hardware should use, and a later software timeout
  */
 int zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id,
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index 97bcdf84386d..883d4a12a172 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -2261,7 +2261,7 @@ out_disable_device:
 } /* End twa_resume() */
 
 /* PCI Devices supported by this driver */
-static struct pci_device_id twa_pci_tbl[] = {
+static const struct pci_device_id twa_pci_tbl[] = {
 	{ PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9000,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 	{ PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_9550SX,
diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c
index 8ed7126d82bb..9b6eab3b1e4d 100644
--- a/drivers/scsi/3w-sas.c
+++ b/drivers/scsi/3w-sas.c
@@ -1822,7 +1822,7 @@ out_disable_device:
 } /* End twl_resume() */
 
 /* PCI Devices supported by this driver */
-static struct pci_device_id twl_pci_tbl[] = {
+static const struct pci_device_id twl_pci_tbl[] = {
 	{ PCI_VDEVICE(3WARE, PCI_DEVICE_ID_3WARE_9750) },
 	{ }
 };
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index 82fb9dc8dac9..89bd56f78ef9 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -2393,7 +2393,7 @@ static void tw_remove(struct pci_dev *pdev)
 } /* End tw_remove() */
 
 /* PCI Devices supported by this driver */
-static struct pci_device_id tw_pci_tbl[] = {
+static const struct pci_device_id tw_pci_tbl[] = {
 	{ PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_1000,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 	{ PCI_VENDOR_ID_3WARE, PCI_DEVICE_ID_3WARE_7000,
diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c
index d04b5feec2eb..1f100270cd38 100644
--- a/drivers/scsi/BusLogic.c
+++ b/drivers/scsi/BusLogic.c
@@ -3716,7 +3716,7 @@ static void __exit blogic_exit(void)
 __setup("BusLogic=", blogic_setup);
 
 #ifdef MODULE
-/*static struct pci_device_id blogic_pci_tbl[] = {
+/*static const struct pci_device_id blogic_pci_tbl[] = {
 	{ PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 	{ PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC,
diff --git a/drivers/scsi/a100u2w.c b/drivers/scsi/a100u2w.c
index b95147fb18b0..a8979f9e30ff 100644
--- a/drivers/scsi/a100u2w.c
+++ b/drivers/scsi/a100u2w.c
@@ -1206,7 +1206,7 @@ static void inia100_remove_one(struct pci_dev *pdev)
 	scsi_host_put(shost);
 } 
 
-static struct pci_device_id inia100_pci_tbl[] = {
+static const struct pci_device_id inia100_pci_tbl[] = {
 	{PCI_VENDOR_ID_INIT, 0x1060, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 	{0,}
 };
diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c
index 8fededa1a751..3a2c336307c0 100644
--- a/drivers/scsi/advansys.c
+++ b/drivers/scsi/advansys.c
@@ -11409,7 +11409,7 @@ static struct eisa_driver advansys_eisa_driver = {
 };
 
 /* PCI Devices supported by this driver */
-static struct pci_device_id advansys_pci_tbl[] = {
+static const struct pci_device_id advansys_pci_tbl[] = {
 	{PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_ASP_1200A,
 	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 	{PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_ASP_ABP940,
diff --git a/drivers/scsi/am53c974.c b/drivers/scsi/am53c974.c
index fbb29dbb1e50..003e61831e33 100644
--- a/drivers/scsi/am53c974.c
+++ b/drivers/scsi/am53c974.c
@@ -513,7 +513,7 @@ static void pci_esp_remove_one(struct pci_dev *pdev)
 	scsi_host_put(esp->host);
 }
 
-static struct pci_device_id am53c974_pci_tbl[] = {
+static const struct pci_device_id am53c974_pci_tbl[] = {
 	{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_SCSI,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 	{ }
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index fe7de7705b7e..221a520e8a9b 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -172,7 +172,7 @@ static const struct scsi_host_template arcmsr_scsi_host_template = {
 	.no_write_same		= 1,
 };
 
-static struct pci_device_id arcmsr_device_id_table[] = {
+static const struct pci_device_id arcmsr_device_id_table[] = {
 	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1110),
 		.driver_data = ACB_ADAPTER_TYPE_A},
 	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1120),
diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c
index 928151ec927a..401242912855 100644
--- a/drivers/scsi/atp870u.c
+++ b/drivers/scsi/atp870u.c
@@ -1743,7 +1743,7 @@ static const struct scsi_host_template atp870u_template = {
      .max_sectors		= ATP870U_MAX_SECTORS,
 };
 
-static struct pci_device_id atp870u_id_table[] = {
+static const struct pci_device_id atp870u_id_table[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_ARTOP, ATP885_DEVID)			  },
 	{ PCI_DEVICE(PCI_VENDOR_ID_ARTOP, ATP880_DEVID1)		  },
 	{ PCI_DEVICE(PCI_VENDOR_ID_ARTOP, ATP880_DEVID2)		  },
diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c
index 60d62b93d624..76073a71c028 100644
--- a/drivers/scsi/cxlflash/main.c
+++ b/drivers/scsi/cxlflash/main.c
@@ -3177,7 +3177,7 @@ static struct dev_dependent_vals dev_briard_vals = { CXLFLASH_MAX_SECTORS,
 /*
  * PCI device binding table
  */
-static struct pci_device_id cxlflash_pci_table[] = {
+static const struct pci_device_id cxlflash_pci_table[] = {
 	{PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CORSA,
 	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, (kernel_ulong_t)&dev_corsa_vals},
 	{PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_FLASH_GT,
diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index 235ebc851ca9..e71de2419758 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -4668,7 +4668,7 @@ static void dc395x_remove_one(struct pci_dev *dev)
 }
 
 
-static struct pci_device_id dc395x_pci_table[] = {
+static const struct pci_device_id dc395x_pci_table[] = {
 	{
 		.vendor		= PCI_VENDOR_ID_TEKRAM,
 		.device		= PCI_DEVICE_ID_TEKRAM_TRMS1040,
diff --git a/drivers/scsi/dmx3191d.c b/drivers/scsi/dmx3191d.c
index dfb091d34363..d6d091b2f3c7 100644
--- a/drivers/scsi/dmx3191d.c
+++ b/drivers/scsi/dmx3191d.c
@@ -127,7 +127,7 @@ static void dmx3191d_remove_one(struct pci_dev *pdev)
 	pci_disable_device(pdev);
 }
 
-static struct pci_device_id dmx3191d_pci_tbl[] = {
+static const struct pci_device_id dmx3191d_pci_tbl[] = {
 	{PCI_VENDOR_ID_DOMEX, PCI_DEVICE_ID_DOMEX_DMX3191D,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
 	{ }
diff --git a/drivers/scsi/elx/efct/efct_driver.c b/drivers/scsi/elx/efct/efct_driver.c
index 55d2301bfd7d..8469c156ab33 100644
--- a/drivers/scsi/elx/efct/efct_driver.c
+++ b/drivers/scsi/elx/efct/efct_driver.c
@@ -470,7 +470,7 @@ out:
 	return rc;
 }
 
-static struct pci_device_id efct_pci_table[] = {
+static const struct pci_device_id efct_pci_table[] = {
 	{PCI_DEVICE(EFCT_VENDOR_ID, EFCT_DEVICE_LANCER_G6), 0},
 	{PCI_DEVICE(EFCT_VENDOR_ID, EFCT_DEVICE_LANCER_G7), 0},
 	{}	/* terminate list */
diff --git a/drivers/scsi/fdomain_pci.c b/drivers/scsi/fdomain_pci.c
index 3e05ce7b89e5..c15b2ce76e9f 100644
--- a/drivers/scsi/fdomain_pci.c
+++ b/drivers/scsi/fdomain_pci.c
@@ -47,7 +47,7 @@ static void fdomain_pci_remove(struct pci_dev *pdev)
 	pci_disable_device(pdev);
 }
 
-static struct pci_device_id fdomain_pci_table[] = {
+static const struct pci_device_id fdomain_pci_table[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_FD, PCI_DEVICE_ID_FD_36C70) },
 	{}
 };
diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c
index 84e79b1f12f2..b57287409113 100644
--- a/drivers/scsi/fnic/fnic_main.c
+++ b/drivers/scsi/fnic/fnic_main.c
@@ -43,7 +43,7 @@ static DEFINE_SPINLOCK(fnic_list_lock);
 static DEFINE_IDA(fnic_ida);
 
 /* Supported devices by fnic module */
-static struct pci_device_id fnic_id_table[] = {
+static const struct pci_device_id fnic_id_table[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_CISCO, PCI_DEVICE_ID_CISCO_FNIC) },
 	{ 0, }
 };
diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
index 55eee5b0f0d7..21f1d9871a33 100644
--- a/drivers/scsi/hptiop.c
+++ b/drivers/scsi/hptiop.c
@@ -1634,7 +1634,7 @@ static struct hptiop_adapter_ops hptiop_mvfrey_ops = {
 	.host_phy_flag     = cpu_to_le64(1),
 };
 
-static struct pci_device_id hptiop_id_table[] = {
+static const struct pci_device_id hptiop_id_table[] = {
 	{ PCI_VDEVICE(TTI, 0x3220), (kernel_ulong_t)&hptiop_itl_ops },
 	{ PCI_VDEVICE(TTI, 0x3320), (kernel_ulong_t)&hptiop_itl_ops },
 	{ PCI_VDEVICE(TTI, 0x3410), (kernel_ulong_t)&hptiop_itl_ops },
diff --git a/drivers/scsi/initio.c b/drivers/scsi/initio.c
index 625fd547ee60..8648bd965287 100644
--- a/drivers/scsi/initio.c
+++ b/drivers/scsi/initio.c
@@ -2941,7 +2941,7 @@ static void initio_remove_one(struct pci_dev *pdev)
 
 MODULE_LICENSE("GPL");
 
-static struct pci_device_id initio_pci_tbl[] = {
+static const struct pci_device_id initio_pci_tbl[] = {
 	{PCI_VENDOR_ID_INIT, 0x9500, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 	{PCI_VENDOR_ID_INIT, 0x9400, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 	{PCI_VENDOR_ID_INIT, 0x9401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index f0444faf776a..1ea528f5d23d 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -9844,7 +9844,7 @@ static void ipr_shutdown(struct pci_dev *pdev)
 	}
 }
 
-static struct pci_device_id ipr_pci_table[] = {
+static const struct pci_device_id ipr_pci_table[] = {
 	{ PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
 		PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
 	{ PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 38976f94453e..adab151663dd 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -4551,7 +4551,7 @@ megaraid_shutdown(struct pci_dev *pdev)
 	__megaraid_shutdown(adapter);
 }
 
-static struct pci_device_id megaraid_pci_tbl[] = {
+static const struct pci_device_id megaraid_pci_tbl[] = {
 	{PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 	{PCI_VENDOR_ID_AMI, PCI_DEVICE_ID_AMI_MEGARAID2,
diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index bc867da650b6..60cc3372991f 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -199,7 +199,7 @@ MODULE_PARM_DESC(debug_level, "Debug level for driver (default=0)");
 /*
  * PCI table for all supported controllers.
  */
-static struct pci_device_id pci_id_table_g[] =  {
+static const struct pci_device_id pci_id_table_g[] =  {
 	{
 		PCI_VENDOR_ID_DELL,
 		PCI_DEVICE_ID_PERC4_DI_DISCOVERY,
@@ -621,7 +621,7 @@ megaraid_io_attach(adapter_t *adapter)
 	host = scsi_host_alloc(&megaraid_template_g, 8);
 	if (!host) {
 		con_log(CL_ANN, (KERN_WARNING
-			"megaraid mbox: scsi_register failed\n"));
+			"megaraid mbox: scsi_host_alloc failed\n"));
 
 		return -1;
 	}
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index ba2ab5911c53..d85f990aec88 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -146,7 +146,7 @@ megasas_set_ld_removed_by_fw(struct megasas_instance *instance);
 /*
  * PCI ID table for all supported controllers
  */
-static struct pci_device_id megasas_pci_table[] = {
+static const struct pci_device_id megasas_pci_table[] = {
 
 	{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)},
 	/* xscale IOP */
diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index 020037cbf0d9..2c72da6b8cf0 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -609,7 +609,7 @@ static void mvs_pci_remove(struct pci_dev *pdev)
 	return;
 }
 
-static struct pci_device_id mvs_pci_table[] = {
+static const struct pci_device_id mvs_pci_table[] = {
 	{ PCI_VDEVICE(MARVELL, 0x6320), chip_6320 },
 	{ PCI_VDEVICE(MARVELL, 0x6340), chip_6440 },
 	{
diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c
index b7987019686e..abc4ce9eae74 100644
--- a/drivers/scsi/nsp32.c
+++ b/drivers/scsi/nsp32.c
@@ -66,7 +66,7 @@ static const char *nsp32_release_version = "1.2";
 /****************************************************************************
  * Supported hardware
  */
-static struct pci_device_id nsp32_pci_table[] = {
+static const struct pci_device_id nsp32_pci_table[] = {
 	{
 		.vendor      = PCI_VENDOR_ID_IODATA,
 		.device      = PCI_DEVICE_ID_NINJASCSI_32BI_CBSC_II,
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index 571121520cf4..599410bcdfea 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -1435,7 +1435,7 @@ err_out_disable:
 /* update of pci device, vendor id and driver data with
  * unique value for each of the controller
  */
-static struct pci_device_id pm8001_pci_table[] = {
+static const struct pci_device_id pm8001_pci_table[] = {
 	{ PCI_VDEVICE(PMC_Sierra, 0x8001), chip_8001 },
 	{ PCI_VDEVICE(PMC_Sierra, 0x8006), chip_8006 },
 	{ PCI_VDEVICE(ADAPTEC2, 0x8006), chip_8006 },
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index 2342ded7ee78..3ba53916fd86 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -113,7 +113,7 @@ static struct pmcraid_chip_details pmcraid_chip_cfg[] = {
 /*
  * PCI device ids supported by pmcraid driver
  */
-static struct pci_device_id pmcraid_pci_table[] = {
+static const struct pci_device_id pmcraid_pci_table[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_PMC, PCI_DEVICE_ID_PMC_MAXRAID),
 	  0, 0, (kernel_ulong_t)&pmcraid_chip_cfg[0]
 	},
diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c
index 628d59dda20c..1cab66a1f4f6 100644
--- a/drivers/scsi/qedi/qedi_main.c
+++ b/drivers/scsi/qedi/qedi_main.c
@@ -2869,7 +2869,7 @@ static void qedi_remove(struct pci_dev *pdev)
 	__qedi_remove(pdev, QEDI_MODE_NORMAL);
 }
 
-static struct pci_device_id qedi_pci_tbl[] = {
+static const struct pci_device_id qedi_pci_tbl[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x165E) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x8084) },
 	{ 0 },
diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c
index 360867838abd..1fd2da0264e3 100644
--- a/drivers/scsi/qla1280.c
+++ b/drivers/scsi/qla1280.c
@@ -501,7 +501,7 @@ struct qla_boards {
 };
 
 /* NOTE: the last argument in each entry is used to index ql1280_board_tbl */
-static struct pci_device_id qla1280_pci_tbl[] = {
+static const struct pci_device_id qla1280_pci_tbl[] = {
 	{PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP12160,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 	{PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020,
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index fb6ff4a5e360..6b9b8218b512 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -8116,7 +8116,7 @@ static const struct pci_error_handlers qla2xxx_err_handler = {
 	.reset_done = qla_pci_reset_done,
 };
 
-static struct pci_device_id qla2xxx_pci_tbl[] = {
+static const struct pci_device_id qla2xxx_pci_tbl[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 863071f80d39..062ec5f24758 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -9846,7 +9846,7 @@ static const struct pci_error_handlers qla4xxx_err_handler = {
 	.resume = qla4xxx_pci_resume,
 };
 
-static struct pci_device_id qla4xxx_pci_tbl[] = {
+static const struct pci_device_id qla4xxx_pci_tbl[] = {
 	{
 		.vendor		= PCI_VENDOR_ID_QLOGIC,
 		.device		= PCI_DEVICE_ID_QLOGIC_ISP4010,
diff --git a/drivers/scsi/snic/snic_main.c b/drivers/scsi/snic/snic_main.c
index d3cf50088a37..1c24517e4e65 100644
--- a/drivers/scsi/snic/snic_main.c
+++ b/drivers/scsi/snic/snic_main.c
@@ -21,7 +21,7 @@
 #define PCI_DEVICE_ID_CISCO_SNIC	0x0046
 
 /* Supported devices by snic module */
-static struct pci_device_id snic_id_table[] = {
+static const struct pci_device_id snic_id_table[] = {
 	{PCI_DEVICE(0x1137, PCI_DEVICE_ID_CISCO_SNIC) },
 	{ 0, }	/* end of table */
 };
diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c
index 0e5c7609dcc4..63ed7f9aaa93 100644
--- a/drivers/scsi/stex.c
+++ b/drivers/scsi/stex.c
@@ -1488,7 +1488,7 @@ static const struct scsi_host_template driver_template = {
 	.dma_boundary			= PAGE_SIZE - 1,
 };
 
-static struct pci_device_id stex_pci_tbl[] = {
+static const struct pci_device_id stex_pci_tbl[] = {
 	/* st_shasta */
 	{ 0x105a, 0x8350, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		st_shasta }, /* SuperTrak EX8350/8300/16350/16300 */
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index e4696bf41b11..45665d4aca92 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -917,14 +917,13 @@ static int storvsc_channel_init(struct hv_device *device, bool is_fc)
 
 	/*
 	 * Allocate state to manage the sub-channels.
-	 * We allocate an array based on the numbers of possible CPUs
-	 * (Hyper-V does not support cpu online/offline).
-	 * This Array will be sparseley populated with unique
-	 * channels - primary + sub-channels.
-	 * We will however populate all the slots to evenly distribute
-	 * the load.
+	 * We allocate an array based on the number of CPU ids. This array
+	 * is initially sparsely populated for the CPUs assigned to channels:
+	 * primary + sub-channels. As I/Os are initiated by different CPUs,
+	 * the slots for all online CPUs are populated to evenly distribute
+	 * the load across all channels.
 	 */
-	stor_device->stor_chns = kcalloc(num_possible_cpus(), sizeof(void *),
+	stor_device->stor_chns = kcalloc(nr_cpu_ids, sizeof(void *),
 					 GFP_KERNEL);
 	if (stor_device->stor_chns == NULL)
 		return -ENOMEM;
diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c
index 9b8cb7319370..212d89d0d23e 100644
--- a/drivers/scsi/sym53c8xx_2/sym_glue.c
+++ b/drivers/scsi/sym53c8xx_2/sym_glue.c
@@ -2031,7 +2031,7 @@ static struct spi_function_template sym2_transport_functions = {
 	.get_signalling	= sym2_get_signalling,
 };
 
-static struct pci_device_id sym2_id_table[] = {
+static const struct pci_device_id sym2_id_table[] = {
 	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C810,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
 	{ PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C820,
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index ae88bea21d2a..f7691b457c51 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -4805,20 +4805,14 @@ EXPORT_SYMBOL_GPL(ufshcd_make_hba_operational);
  */
 void ufshcd_hba_stop(struct ufs_hba *hba)
 {
-	unsigned long flags;
 	int err;
 
-	/*
-	 * Obtain the host lock to prevent that the controller is disabled
-	 * while the UFS interrupt handler is active on another CPU.
-	 */
-	spin_lock_irqsave(hba->host->host_lock, flags);
+	ufshcd_disable_irq(hba);
 	ufshcd_writel(hba, CONTROLLER_DISABLE,  REG_CONTROLLER_ENABLE);
-	spin_unlock_irqrestore(hba->host->host_lock, flags);
-
 	err = ufshcd_wait_for_register(hba, REG_CONTROLLER_ENABLE,
 					CONTROLLER_ENABLE, CONTROLLER_DISABLE,
 					10, 1);
+	ufshcd_enable_irq(hba);
 	if (err)
 		dev_err(hba->dev, "%s: Controller disable failed\n", __func__);
 }
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 8fccfd27393e..fac90ae884c7 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -595,7 +595,7 @@ struct Scsi_Host {
 	 * have some way of identifying each detected host adapter properly
 	 * and uniquely.  For hosts that do not support more than one card
 	 * in the system at one time, this does not need to be set.  It is
-	 * initialized to 0 in scsi_register.
+	 * initialized to 0 in scsi_host_alloc.
 	 */
 	unsigned int unique_id;