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From: Saravana Kannan <saravanak@google.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Andrew Lunn <andrew@lunn.ch>,
	Heiner Kallweit <hkallweit1@gmail.com>,
	Russell King <linux@armlinux.org.uk>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>, Len Brown <lenb@kernel.org>,
	Saravana Kannan <saravanak@google.com>
Cc: John Stultz <john.stultz@linaro.org>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	Rob Herring <robh+dt@kernel.org>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Vladimir Oltean <olteanv@gmail.com>,
	kernel-team@android.com, linux-kernel@vger.kernel.org,
	netdev@vger.kernel.org, linux-acpi@vger.kernel.org,
	Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH v2 4/6] driver core: Add debug logs when fwnode links are added/deleted
Date: Wed, 15 Sep 2021 01:11:36 -0700	[thread overview]
Message-ID: <20210915081139.480263-5-saravanak@google.com> (raw)
In-Reply-To: <20210915081139.480263-1-saravanak@google.com>

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(+)

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);
-- 
2.33.0.309.g3052b89438-goog


  parent reply	other threads:[~2021-09-15  8:12 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20210915081147eucas1p130ee8d5f1910ea3be265d37e4236a606@eucas1p1.samsung.com>
2021-09-15  8:11 ` [PATCH v2 0/6] fw_devlink improvements Saravana Kannan
2021-09-15  8:11   ` [PATCH v2 1/6] driver core: fw_devlink: Improve handling of cyclic dependencies Saravana Kannan
2021-09-15  8:11   ` [PATCH v2 2/6] driver core: Set deferred probe reason when deferred by driver core Saravana Kannan
2021-09-15  8:30     ` Geert Uytterhoeven
2021-09-15  8:11   ` [PATCH v2 3/6] driver core: Create __fwnode_link_del() helper function Saravana Kannan
2021-09-15  8:11   ` Saravana Kannan [this message]
2021-09-15  8:11   ` [PATCH v2 5/6] driver core: fw_devlink: Add support for FWNODE_FLAG_NEEDS_CHILD_BOUND_ON_ADD Saravana Kannan
2021-09-15  8:11   ` [PATCH v2 6/6] net: mdiobus: Set FWNODE_FLAG_NEEDS_CHILD_BOUND_ON_ADD for mdiobus parents Saravana Kannan
2021-09-15  8:44   ` [PATCH v2 0/6] fw_devlink improvements Marek Szyprowski
2021-09-15 16:44     ` Saravana Kannan
2021-09-17  9:18       ` Marek Szyprowski
2021-09-15 12:14   ` Andrew Lunn
2021-09-15 17:18     ` Saravana Kannan

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