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[v2,4/6] driver core: Add debug logs when fwnode links are added/deleted

Message ID 20210915081139.480263-5-saravanak@google.com (mailing list archive)
State Not Applicable
Headers show
Series fw_devlink improvements | expand

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netdev/source_inline success Was 0 now: 0
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netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 3 this patch: 3
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netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 16 lines checked
netdev/build_allmodconfig_warn success Errors and warnings before: 3 this patch: 3
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Commit Message

Saravana Kannan Sept. 15, 2021, 8:11 a.m. UTC 
This will help with debugging fw_devlink issues.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 drivers/base/core.c | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 5e7faad4e083..f06e8e2dc69b 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -95,6 +95,8 @@  int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup)
 
 	list_add(&link->s_hook, &sup->consumers);
 	list_add(&link->c_hook, &con->suppliers);
+	pr_debug("%pfwP Linked as a fwnode consumer to %pfwP\n",
+		 con, sup);
 out:
 	mutex_unlock(&fwnode_link_lock);
 
@@ -109,6 +111,8 @@  int fwnode_link_add(struct fwnode_handle *con, struct fwnode_handle *sup)
  */
 static void __fwnode_link_del(struct fwnode_link *link)
 {
+	pr_debug("%pfwP Dropping the fwnode link to %pfwP\n",
+		 link->consumer, link->supplier);
 	list_del(&link->s_hook);
 	list_del(&link->c_hook);
 	kfree(link);