scsi: megaraid: Declare SCSI host template const

Make it explicit that the SCSI host template is not modified.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20230322195515.1267197-52-bvanassche@acm.orgSigned-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/megaraid.c

@@ -4100,7 +4100,7 @@ mega_internal_command(adapter_t *adapter, megacmd_t *mc, mega_passthru *pthru)
 	return rval;
 }
 
-static struct scsi_host_template megaraid_template = {
+static const struct scsi_host_template megaraid_template = {
 	.module				= THIS_MODULE,
 	.name				= "MegaRAID",
 	.proc_name			= "megaraid_legacy",

drivers/scsi/megaraid/megaraid_mbox.c

@@ -325,7 +325,7 @@ ATTRIBUTE_GROUPS(megaraid_sdev);
 /*
  * Scsi host template for megaraid unified driver
  */
-static struct scsi_host_template megaraid_template_g = {
+static const struct scsi_host_template megaraid_template_g = {
 	.module				= THIS_MODULE,
 	.name				= "LSI Logic MegaRAID driver",
 	.proc_name			= "megaraid",

drivers/scsi/megaraid/megaraid_sas_base.c

@@ -3505,7 +3505,7 @@ ATTRIBUTE_GROUPS(megaraid_host);
 /*
  * Scsi host template for megaraid_sas driver
  */
-static struct scsi_host_template megasas_template = {
+static const struct scsi_host_template megasas_template = {
 
 	.module = THIS_MODULE,
 	.name = "Avago SAS based MegaRAID driver",