linux-kernel - [PATCH 2/2] of/platform: Disable generic device linking code for PowerPC

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Message-Id: <20190806192654.138605-2-saravanak@google.com>
Date:   Tue,  6 Aug 2019 12:26:54 -0700
From:   Saravana Kannan <saravanak@...gle.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>
Cc:     Saravana Kannan <saravanak@...gle.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        kernel-team@...roid.com, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] of/platform: Disable generic device linking code for PowerPC

PowerPC platforms don't use the generic of/platform code to populate the
devices from DT.  Therefore the generic device linking code is never used
in PowerPC.  Compile it out to avoid warning about unused functions.

If a specific PowerPC platform wants to use this code in the future,
bringing this back for PowerPC would be trivial. We'll just need to export
of_link_to_suppliers() and then let the machine specific files do the
linking as they populate the devices from DT.

Signed-off-by: Saravana Kannan <saravanak@...gle.com>
---
 drivers/of/platform.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index f68de5c4aeff..a2a4e4b79d43 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -506,6 +506,7 @@ int of_platform_default_populate(struct device_node *root,
 }
 EXPORT_SYMBOL_GPL(of_platform_default_populate);
 
+#ifndef CONFIG_PPC
 static bool of_link_is_valid(struct device_node *con, struct device_node *sup)
 {
 	of_node_get(sup);
@@ -683,7 +684,6 @@ static int of_link_to_suppliers(struct device *dev)
 	return __of_link_to_suppliers(dev, dev->of_node);
 }
 
-#ifndef CONFIG_PPC
 static const struct of_device_id reserved_mem_matches[] = {
 	{ .compatible = "qcom,rmtfs-mem" },
 	{ .compatible = "qcom,cmd-db" },
-- 
2.22.0.770.g0f2c4a37fd-goog