linux-kernel - [PATCH] serial: Make uart_port's ioport "resource_size

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Date:	Tue, 14 Oct 2008 12:26:21 -0400
From:	Josh Boyer <jwboyer@...ux.vnet.ibm.com>
To:	davem@...emloft.net, alan@...hat.com
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] serial: Make uart_port's ioport "resource_size_t"

Recently uart_port's iobase was changed to be an 'unsigned
long' to avoid chopping off the upper 32-bits of the
address on 64-bit CPUs.  However, there are CPUs that are
32-bit but have a 64-bit address space.  This changes
iobase to be 'resource_size_t' to accommodate those types
of systems.  This also matches what is done for the mapbase
member of uart_port.

Signed-off-by: Josh Boyer <jwboyer@...ux.vnet.ibm.com>

---

diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index e27f216..cb0185b 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -241,7 +241,7 @@ typedef unsigned int __bitwise__ upf_t;
 
 struct uart_port {
 	spinlock_t		lock;			/* port lock */
-	unsigned long		iobase;			/* in/out[bwl] */
+	resource_size_t		iobase;			/* in/out[bwl] */
 	unsigned char __iomem	*membase;		/* read/write[bwl] */
 	unsigned int		irq;			/* irq number */
 	unsigned int		uartclk;		/* base uart clock */
--
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