[PATCH] net/fec: fix compile error introduced by dt support

[Shawn Guo]

After fec dt support is added, the following compile error will be
seen when building a pure non-dt kernel.

drivers/net/fec.c: In function ‘fec_probe’:
drivers/net/fec.c:1383: error: implicit declaration of function ‘of_match_device’
drivers/net/fec.c:1383: warning: assignment makes pointer from integer without a cast

This patch is to fix the error.

Signed-off-by: Shawn Guo <shawn.guo at linaro.org>
---
 drivers/net/fec.c |   13 ++++++++++++-
 1 files changed, 12 insertions(+), 1 deletions(-)

diff --git a/drivers/net/fec.c b/drivers/net/fec.c
index b57f879..ffb1e75 100644
--- a/drivers/net/fec.c
+++ b/drivers/net/fec.c
@@ -85,8 +85,19 @@ static const struct of_device_id fec_dt_ids[] = {
 	{ .compatible = "fsl,imx51-fec", .data = &fec_devtype[0], },
 	{},
 };
+
+static const struct of_device_id *
+fec_get_of_device_id(struct platform_device *pdev)
+{
+	return of_match_device(fec_dt_ids, &pdev->dev);
+}
 #else
 #define fec_dt_ids NULL
+static inline struct of_device_id *
+fec_get_of_device_id(struct platform_device *pdev)
+{
+	return NULL;
+}
 #endif
 
 static unsigned char macaddr[ETH_ALEN];
@@ -1380,7 +1391,7 @@ fec_probe(struct platform_device *pdev)
 	struct resource *r;
 	const struct of_device_id *of_id;
 
-	of_id = of_match_device(fec_dt_ids, &pdev->dev);
+	of_id = fec_get_of_device_id(pdev);
 	if (of_id)
 		pdev->id_entry = (struct platform_device_id *)of_id->data;
 
-- 
1.7.1