netdev - [PATCH] net: ax88796: avoid 64 bit arithmetic

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Message-Id: <201304191506.21220.arnd@arndb.de>
Date:	Fri, 19 Apr 2013 15:06:21 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	netdev@...r.kernel.org
Cc:	"David S. Miller" <davem@...emloft.net>, Ben Dooks <ben@...ff.org>
Subject: [PATCH] net: ax88796: avoid 64 bit arithmetic

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 <ben-linux@...ff.org>
Cc: netdev@...r.kernel.org

diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c
index cab306a..e1d2643 100644
--- 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));
--
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