scsi: arcmsr: Switch to attribute groups

struct device supports attribute groups directly but does not support
struct device_attribute directly. Hence switch to attribute groups.

Link: https://lore.kernel.org/r/20211012233558.4066756-13-bvanassche@acm.orgSigned-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/arcmsr/arcmsr.h

@@ -1041,6 +1041,6 @@ extern uint32_t arcmsr_Read_iop_rqbuffer_data(struct AdapterControlBlock *,
 	struct QBUFFER __iomem *);
 extern void arcmsr_clear_iop2drv_rqueue_buffer(struct AdapterControlBlock *);
 extern struct QBUFFER __iomem *arcmsr_get_iop_rqbuffer(struct AdapterControlBlock *);
-extern struct device_attribute *arcmsr_host_attrs[];
+extern const struct attribute_group *arcmsr_host_groups[];
 extern int arcmsr_alloc_sysfs_attr(struct AdapterControlBlock *);
 void arcmsr_free_sysfs_attr(struct AdapterControlBlock *acb);

drivers/scsi/arcmsr/arcmsr_attr.c

@@ -58,8 +58,6 @@
 #include <scsi/scsi_transport.h>
 #include "arcmsr.h"
 
-struct device_attribute *arcmsr_host_attrs[];
-
 static ssize_t arcmsr_sysfs_iop_message_read(struct file *filp,
 					     struct kobject *kobj,
 					     struct bin_attribute *bin,
@@ -389,16 +387,25 @@ static DEVICE_ATTR(host_fw_numbers_queue, S_IRUGO, arcmsr_attr_host_fw_numbers_q
 static DEVICE_ATTR(host_fw_sdram_size, S_IRUGO, arcmsr_attr_host_fw_sdram_size, NULL);
 static DEVICE_ATTR(host_fw_hd_channels, S_IRUGO, arcmsr_attr_host_fw_hd_channels, NULL);
 
-struct device_attribute *arcmsr_host_attrs[] = {
-	&dev_attr_host_driver_version,
-	&dev_attr_host_driver_posted_cmd,
-	&dev_attr_host_driver_reset,
-	&dev_attr_host_driver_abort,
-	&dev_attr_host_fw_model,
-	&dev_attr_host_fw_version,
-	&dev_attr_host_fw_request_len,
-	&dev_attr_host_fw_numbers_queue,
-	&dev_attr_host_fw_sdram_size,
-	&dev_attr_host_fw_hd_channels,
+static struct attribute *arcmsr_host_attrs[] = {
+	&dev_attr_host_driver_version.attr,
+	&dev_attr_host_driver_posted_cmd.attr,
+	&dev_attr_host_driver_reset.attr,
+	&dev_attr_host_driver_abort.attr,
+	&dev_attr_host_fw_model.attr,
+	&dev_attr_host_fw_version.attr,
+	&dev_attr_host_fw_request_len.attr,
+	&dev_attr_host_fw_numbers_queue.attr,
+	&dev_attr_host_fw_sdram_size.attr,
+	&dev_attr_host_fw_hd_channels.attr,
 	NULL,
 };
+
+static const struct attribute_group arcmsr_host_attr_group = {
+	.attrs = arcmsr_host_attrs,
+};
+
+const struct attribute_group *arcmsr_host_groups[] = {
+	&arcmsr_host_attr_group,
+	NULL
+};

drivers/scsi/arcmsr/arcmsr_hba.c

@@ -167,7 +167,7 @@ static struct scsi_host_template arcmsr_scsi_host_template = {
 	.sg_tablesize	        = ARCMSR_DEFAULT_SG_ENTRIES,
 	.max_sectors		= ARCMSR_MAX_XFER_SECTORS_C,
 	.cmd_per_lun		= ARCMSR_DEFAULT_CMD_PERLUN,
-	.shost_attrs		= arcmsr_host_attrs,
+	.shost_groups		= arcmsr_host_groups,
 	.no_write_same		= 1,
 };