Re: [PATCH 2/2] Use resource_size_t for serial port IO addresses

From: Alan
Date: Tue Feb 20 2007 - 07:03:36 EST

On Tue, 20 Feb 2007 14:19:51 +1100 (EST)
David Gibson <david@xxxxxxxxxxxxxxxxxxxxx> wrote:

> At present, various parts of the serial code use unsigned long to
> define resource addresses. This is a problem, because some 32-bit
> platforms have physical addresses larger than 32-bits, and have mmio
> serial uarts located above the 4GB point.
> This patch changes the type of mapbase in both struct uart_port and
> struct plat_serial8250_port to resource_size_t, which can be
> configured to be 64 bits on such platforms. The mapbase in
> serial_struct can't safely be changed, because that structure is user
> visible.
> Signed-off-by: David Gibson <dwg@xxxxxxxxxxx>

Acked-by: Alan Cox <alan@xxxxxxxxxx>
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at