linux-kernel - [PATCH 1/5] net: visually shrink eth_platform_get_mac

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Date:   Wed, 18 Jul 2018 18:10:31 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Sekhar Nori <nsekhar@...com>, Kevin Hilman <khilman@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Grygorii Strashko <grygorii.strashko@...com>,
        "David S . Miller" <davem@...emloft.net>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Lukas Wunner <lukas@...ner.de>, Rob Herring <robh@...nel.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Ivan Khoronzhuk <ivan.khoronzhuk@...aro.org>,
        David Lechner <david@...hnology.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Lunn <andrew@...n.ch>
Cc:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-omap@...r.kernel.org, netdev@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: [PATCH 1/5] net: visually shrink eth_platform_get_mac_address()

From: Bartosz Golaszewski <bgolaszewski@...libre.com>

Initialize the variables with proper values so that we save a few
lines of code before we extend this function in the follow-up patches.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>
---
 net/ethernet/eth.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c
index ee28440f57c5..da8530879e1e 100644
--- a/net/ethernet/eth.c
+++ b/net/ethernet/eth.c
@@ -527,15 +527,10 @@ unsigned char * __weak arch_get_platform_mac_address(void)
 
 int eth_platform_get_mac_address(struct device *dev, u8 *mac_addr)
 {
-	const unsigned char *addr;
-	struct device_node *dp;
+	struct device_node *dp = dev_is_pci(dev) ?
+			pci_device_to_OF_node(to_pci_dev(dev)) : dev->of_node;
+	const unsigned char *addr = NULL;
 
-	if (dev_is_pci(dev))
-		dp = pci_device_to_OF_node(to_pci_dev(dev));
-	else
-		dp = dev->of_node;
-
-	addr = NULL;
 	if (dp)
 		addr = of_get_mac_address(dp);
 	if (!addr)
-- 
2.17.1