Thread (48 messages) 48 messages, 10 authors, 2011-06-24

Re: [PATCH 2/3] net/fec: add device tree support

From: Greg Ungerer <hidden>
Date: 2011-06-20 00:05:53
Also in: linux-arm-kernel, lkml, netdev

On 19/06/11 22:11, Arnd Bergmann wrote:
On Sunday 19 June 2011 13:39:32 Greg Ungerer wrote:
quoted
quoted
+#ifdef CONFIG_OF
+static const struct of_device_id fec_dt_ids[] = {
+     { .compatible = "fsl,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];
   module_param_array(macaddr, byte, NULL, 0);
   MODULE_PARM_DESC(macaddr, "FEC Ethernet MAC address");
@@ -1363,6 +1385,11 @@ fec_probe(struct platform_device *pdev)
       struct net_device *ndev;
       int i, irq, ret = 0;
       struct resource *r;
+     const struct of_device_id *of_id;
+
+     of_id = fec_get_of_device_id(pdev);
fec_get_of_device_id() is defined inside of "#ifdef CONFIG_OF". This
use of it will break compilation when this is not defined.

Why? Note the #else path defining an empty function.
Sorry, missed that :-)

Regards
Greg


------------------------------------------------------------------------
Greg Ungerer  --  Principal Engineer        EMAIL:     gerg@snapgear.com
SnapGear Group, McAfee                      PHONE:       +61 7 3435 2888
8 Gardner Close                             FAX:         +61 7 3217 5323
Milton, QLD, 4064, Australia                WEB: http://www.SnapGear.com
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