diff mbox series

[RFC,06/11] pci/hotplug/pnv-php: Remove erroneous warning

Message ID 20190619132840.27634-7-fbarrat@linux.ibm.com (mailing list archive)
State Superseded
Headers show
Series opencapi: enable card reset and link retraining | expand

Checks

Context Check Description
snowpatch_ozlabs/apply_patch success Successfully applied on branch next (e610a466d16a086e321f0bd421e2fc75cff28605)
snowpatch_ozlabs/checkpatch success total: 0 errors, 0 warnings, 0 checks, 17 lines checked

Commit Message

Frederic Barrat June 19, 2019, 1:28 p.m. UTC
On powernv, when removing a device through hotplug, the following
warning is logged:

     Invalid refcount <.> on <...>

It may be incorrect, the refcount may be set to a higher value than 1
and be valid. of_detach_node() can drop more than one reference. As it
doesn't seem trivial to assert the correct value, let's remove the
warning.

Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
---
 drivers/pci/hotplug/pnv_php.c | 6 ------
 1 file changed, 6 deletions(-)
diff mbox series

Patch

diff --git a/drivers/pci/hotplug/pnv_php.c b/drivers/pci/hotplug/pnv_php.c
index 6758fd7c382e..5b5cbf1e636d 100644
--- a/drivers/pci/hotplug/pnv_php.c
+++ b/drivers/pci/hotplug/pnv_php.c
@@ -151,17 +151,11 @@  static void pnv_php_rmv_pdns(struct device_node *dn)
 static void pnv_php_detach_device_nodes(struct device_node *parent)
 {
 	struct device_node *dn;
-	int refcount;
 
 	for_each_child_of_node(parent, dn) {
 		pnv_php_detach_device_nodes(dn);
 
 		of_node_put(dn);
-		refcount = kref_read(&dn->kobj.kref);
-		if (refcount != 1)
-			pr_warn("Invalid refcount %d on <%pOF>\n",
-				refcount, dn);
-
 		of_detach_node(dn);
 	}
 }