linux-kernel - [PATCH] powerpc/pseries/vas: use default_groups in kobj

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Message-Id: <20220329142552.558339-1-gregkh@linuxfoundation.org>
Date:   Tue, 29 Mar 2022 16:25:52 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linuxppc-dev@...ts.ozlabs.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Haren Myneni <haren@...ux.ibm.com>,
        Nicholas Piggin <npiggin@...il.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] powerpc/pseries/vas: use default_groups in kobj_type

There are currently 2 ways to create a set of sysfs files for a
kobj_type, through the default_attrs field, and the default_groups
field.  Move the pseries vas sysfs code to use default_groups field
which has been the preferred way since aa30f47cf666 ("kobject: Add
support for default attribute groups to kobj_type") so that we can soon
get rid of the obsolete default_attrs field.

Cc: Michael Ellerman <mpe@...erman.id.au>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Haren Myneni <haren@...ux.ibm.com>
Cc: Nicholas Piggin <npiggin@...il.com>
Cc: linuxppc-dev@...ts.ozlabs.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---

Note, I would like to take this through my driver-core tree for 5.18-rc2
as this is the last hold-out of the default_attrs field.  It "snuck" in
as new code for 5.18-rc1, any objection to me taking it?

thanks,

greg k-h

 arch/powerpc/platforms/pseries/vas-sysfs.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/vas-sysfs.c b/arch/powerpc/platforms/pseries/vas-sysfs.c
index 4a7fcde5afc0..909535ca513a 100644
--- a/arch/powerpc/platforms/pseries/vas-sysfs.c
+++ b/arch/powerpc/platforms/pseries/vas-sysfs.c
@@ -99,6 +99,7 @@ static struct attribute *vas_def_capab_attrs[] = {
 	&nr_used_credits_attribute.attr,
 	NULL,
 };
+ATTRIBUTE_GROUPS(vas_def_capab);
 
 static struct attribute *vas_qos_capab_attrs[] = {
 	&nr_total_credits_attribute.attr,
@@ -106,6 +107,7 @@ static struct attribute *vas_qos_capab_attrs[] = {
 	&update_total_credits_attribute.attr,
 	NULL,
 };
+ATTRIBUTE_GROUPS(vas_qos_capab);
 
 static ssize_t vas_type_show(struct kobject *kobj, struct attribute *attr,
 			     char *buf)
@@ -154,13 +156,13 @@ static const struct sysfs_ops vas_sysfs_ops = {
 static struct kobj_type vas_def_attr_type = {
 		.release	=	vas_type_release,
 		.sysfs_ops      =       &vas_sysfs_ops,
-		.default_attrs  =       vas_def_capab_attrs,
+		.default_groups	=	vas_def_capab_groups,
 };
 
 static struct kobj_type vas_qos_attr_type = {
 		.release	=	vas_type_release,
 		.sysfs_ops	=	&vas_sysfs_ops,
-		.default_attrs	=	vas_qos_capab_attrs,
+		.default_groups	=	vas_qos_capab_groups,
 };
 
 static char *vas_caps_kobj_name(struct vas_caps_entry *centry,
-- 
2.35.1