net: ax88796: avoid 64 bit arithmetic

arndb · davem330 · commit b261c20fe089 · 2013-04-19T17:57:48.000-04:00
When building ax88796 on an ARM platform with 64-bit resource_size_t,
we currently get

drivers/net/ethernet/8390/ax88796.c:875: undefined reference to `__aeabi_uldivmod'

because we do a division on the length of the MMIO resource.
Since we know that this resource is very short, using an
"unsigned long" instead of "resource_size_t" is entirely
sufficient, and avoids this link-time error.

Cc: Ben Dooks &lt;ben-linux@fluff.org&gt;
Cc: netdev@vger.kernel.org
Signed-off-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c
@@ -828,7 +828,7 @@ static int ax_probe(struct platform_device *pdev)
 	struct ei_device *ei_local;
 	struct ax_device *ax;
 	struct resource *irq, *mem, *mem2;
-	resource_size_t mem_size, mem2_size = 0;
+	unsigned long mem_size, mem2_size = 0;
 	int ret = 0;
 
 	dev = ax__alloc_ei_netdev(sizeof(struct ax_device));
