s390/ipl: add common ipl parameter attribute group

All ipl types have 'secure','has_secure' and type parameters. Move
these to a common ipl parameter group so that they don't need to be
present in each ipl parameter group.

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

Author: svens-s390

arch/s390/kernel/ipl.c

@@ -557,15 +557,12 @@ static struct kobj_attribute sys_ipl_ccw_loadparm_attr =
 	__ATTR(loadparm, 0444, ipl_ccw_loadparm_show, NULL);
 
 static struct attribute *ipl_fcp_attrs[] = {
-	&sys_ipl_type_attr.attr,
 	&sys_ipl_device_attr.attr,
 	&sys_ipl_fcp_wwpn_attr.attr,
 	&sys_ipl_fcp_lun_attr.attr,
 	&sys_ipl_fcp_bootprog_attr.attr,
 	&sys_ipl_fcp_br_lba_attr.attr,
 	&sys_ipl_ccw_loadparm_attr.attr,
-	&sys_ipl_secure_attr.attr,
-	&sys_ipl_has_secure_attr.attr,
 	NULL,
 };
 
@@ -575,14 +572,11 @@ static struct attribute_group ipl_fcp_attr_group = {
 };
 
 static struct attribute *ipl_nvme_attrs[] = {
-	&sys_ipl_type_attr.attr,
 	&sys_ipl_nvme_fid_attr.attr,
 	&sys_ipl_nvme_nsid_attr.attr,
 	&sys_ipl_nvme_bootprog_attr.attr,
 	&sys_ipl_nvme_br_lba_attr.attr,
 	&sys_ipl_ccw_loadparm_attr.attr,
-	&sys_ipl_secure_attr.attr,
-	&sys_ipl_has_secure_attr.attr,
 	NULL,
 };
 
@@ -592,13 +586,10 @@ static struct attribute_group ipl_nvme_attr_group = {
 };
 
 static struct attribute *ipl_eckd_attrs[] = {
-	&sys_ipl_type_attr.attr,
 	&sys_ipl_eckd_bootprog_attr.attr,
 	&sys_ipl_eckd_br_chr_attr.attr,
 	&sys_ipl_ccw_loadparm_attr.attr,
 	&sys_ipl_device_attr.attr,
-	&sys_ipl_secure_attr.attr,
-	&sys_ipl_has_secure_attr.attr,
 	NULL,
 };
 
@@ -610,21 +601,15 @@ static struct attribute_group ipl_eckd_attr_group = {
 /* CCW ipl device attributes */
 
 static struct attribute *ipl_ccw_attrs_vm[] = {
-	&sys_ipl_type_attr.attr,
 	&sys_ipl_device_attr.attr,
 	&sys_ipl_ccw_loadparm_attr.attr,
 	&sys_ipl_vm_parm_attr.attr,
-	&sys_ipl_secure_attr.attr,
-	&sys_ipl_has_secure_attr.attr,
 	NULL,
 };
 
 static struct attribute *ipl_ccw_attrs_lpar[] = {
-	&sys_ipl_type_attr.attr,
 	&sys_ipl_device_attr.attr,
 	&sys_ipl_ccw_loadparm_attr.attr,
-	&sys_ipl_secure_attr.attr,
-	&sys_ipl_has_secure_attr.attr,
 	NULL,
 };
 
@@ -636,17 +621,15 @@ static struct attribute_group ipl_ccw_attr_group_lpar = {
 	.attrs = ipl_ccw_attrs_lpar
 };
 
-/* UNKNOWN ipl device attributes */
-
-static struct attribute *ipl_unknown_attrs[] = {
+static struct attribute *ipl_common_attrs[] = {
 	&sys_ipl_type_attr.attr,
 	&sys_ipl_secure_attr.attr,
 	&sys_ipl_has_secure_attr.attr,
 	NULL,
 };
 
-static struct attribute_group ipl_unknown_attr_group = {
-	.attrs = ipl_unknown_attrs,
+static struct attribute_group ipl_common_attr_group = {
+	.attrs = ipl_common_attrs,
 };
 
 static struct kset *ipl_kset;
@@ -670,6 +653,9 @@ static int __init ipl_init(void)
 		rc = -ENOMEM;
 		goto out;
 	}
+	rc = sysfs_create_group(&ipl_kset->kobj, &ipl_common_attr_group);
+	if (rc)
+		goto out;
 	switch (ipl_info.type) {
 	case IPL_TYPE_CCW:
 		if (MACHINE_IS_VM)
@@ -691,8 +677,6 @@ static int __init ipl_init(void)
 		rc = sysfs_create_group(&ipl_kset->kobj, &ipl_nvme_attr_group);
 		break;
 	default:
-		rc = sysfs_create_group(&ipl_kset->kobj,
-					&ipl_unknown_attr_group);
 		break;
 	}
 out: