[PATCH] powerpc/perf/hv-24x7: Move cpumask file to top folder of hv-24x7 driver

* [PATCH] powerpc/perf/hv-24x7: Move cpumask file to top folder of hv-24x7 driver
@ 2020-08-21  8:06 Kajol Jain
  2020-08-27  7:46 ` Michael Ellerman
  0 siblings, 1 reply; 2+ messages in thread
From: Kajol Jain @ 2020-08-21  8:06 UTC (permalink / raw)
  To: mpe, linuxppc-dev; +Cc: kjain, suka, maddy

Commit 792f73f747b8 ("powerpc/hv-24x7: Add sysfs files inside hv-24x7
device to show cpumask") added cpumask file as part of hv-24x7 driver
inside the interface folder. Cpumask file suppose to be in the top
folder of the pmu driver inorder to make hotplug works.

This patch fix that issue and create new group 'cpumask_attr_group'
to add cpumask file and make sure it added on top folder.

command:# cat /sys/devices/hv_24x7/cpumask
0

Fixes: 792f73f747b8 ("powerpc/hv-24x7: Add sysfs files inside hv-24x7
device to show cpumask")
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
---
 .../testing/sysfs-bus-event_source-devices-hv_24x7    |  2 +-
 arch/powerpc/perf/hv-24x7.c                           | 11 ++++++++++-
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7 b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7
index f7e32f218f73..e82fc37be802 100644
--- a/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7
+++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7
@@ -43,7 +43,7 @@ Description:	read only
 		This sysfs interface exposes the number of cores per chip
 		present in the system.
 
-What:		/sys/devices/hv_24x7/interface/cpumask
+What:		/sys/devices/hv_24x7/cpumask
 Date:		July 2020
 Contact:	Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
 Description:	read only
diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c
index cdb7bfbd157e..6e7e820508df 100644
--- a/arch/powerpc/perf/hv-24x7.c
+++ b/arch/powerpc/perf/hv-24x7.c
@@ -1128,6 +1128,15 @@ static struct bin_attribute *if_bin_attrs[] = {
 	NULL,
 };
 
+static struct attribute *cpumask_attrs[] = {
+	&dev_attr_cpumask.attr,
+	NULL,
+};
+
+static struct attribute_group cpumask_attr_group = {
+	.attrs = cpumask_attrs,
+};
+
 static struct attribute *if_attrs[] = {
 	&dev_attr_catalog_len.attr,
 	&dev_attr_catalog_version.attr,
@@ -1135,7 +1144,6 @@ static struct attribute *if_attrs[] = {
 	&dev_attr_sockets.attr,
 	&dev_attr_chipspersocket.attr,
 	&dev_attr_coresperchip.attr,
-	&dev_attr_cpumask.attr,
 	NULL,
 };
 
@@ -1151,6 +1159,7 @@ static const struct attribute_group *attr_groups[] = {
 	&event_desc_group,
 	&event_long_desc_group,
 	&if_group,
+	&cpumask_attr_group,
 	NULL,
 };
 
-- 
2.18.2


^ permalink raw reply related	[flat|nested] 2+ messages in thread