[IRDA]: Protect IDA dma stuff with CONFIG_ISA.

net/irda/irda_device.c

@@ -532,6 +532,7 @@ int irda_device_set_mode(struct net_device* dev, int mode)
 	return ret;
 }
 
+#ifdef CONFIG_ISA
 /*
  * Function setup_dma (idev, buffer, count, mode)
  *
@@ -553,3 +554,4 @@ void setup_dma(int channel, char *buffer, int count, int mode)
 
 	release_dma_lock(flags);
 }
+#endif

net/irda/irsyms.c

@@ -167,7 +167,9 @@ EXPORT_SYMBOL(async_unwrap_char);
 EXPORT_SYMBOL(irda_calc_crc16);
 EXPORT_SYMBOL(irda_crc16_table);
 EXPORT_SYMBOL(irda_start_timer);
+#ifdef CONFIG_ISA
 EXPORT_SYMBOL(setup_dma);
+#endif
 EXPORT_SYMBOL(infrared_mode);
 
 #ifdef CONFIG_IRTTY