[PATCH] topology: Fix up build warning in topology_is_visible()

Greg Kroah-Hartman
2022-04-22T06:27:15Z

Commit aa63a74d4535 ("topology/sysfs: Hide PPIN on systems that do not
support it.") caused a build warning on some configurations:

drivers/base/topology.c: In function 'topology_is_visible':
drivers/base/topology.c:158:24: warning: unused variable 'dev' [-Wunused-variable]
158 | struct device *dev = kobj_to_dev(kobj);

Fix this up by getting rid of the variable entirely.

Fixes: aa63a74d4535 ("topology/sysfs: Hide PPIN on systems that do not support it.")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/base/topology.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/base/topology.c b/drivers/base/topology.c
index 706dbf8bf249..ac6ad9ab67f9 100644
--- a/drivers/base/topology.c
+++ b/drivers/base/topology.c
@@ -155,9 +155,7 @@ static struct attribute *default_attrs[] = {
static umode_t topology_is_visible(struct kobject *kobj,
struct attribute *attr, int unused)
{
- struct device *dev = kobj_to_dev(kobj);
-
- if (attr == &dev_attr_ppin.attr && !topology_ppin(dev->id))
+ if (attr == &dev_attr_ppin.attr && !topology_ppin(kobj_to_dev(kobj)->id))
return 0;

return attr->mode;
--
2.36.0