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SubjectRe: [PATCH 1/1] avr32: added mem kernel command line option support
On Mon, 15 Sep 2008 12:07:19 +0200 Marco Stornelli wrote:

> From: Marco Stornelli <marco.stornelli@gmail.com>
>
> Added support for the mem kernel command line option
> Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com>
> ---
> --- setup.c.orig 2008-09-15 11:30:00.000000000 +0200
> +++ setup.c 2008-09-15 11:30:17.000000000 +0200
> @@ -283,6 +283,25 @@ static int __init early_parse_fbmem(char
> }
> early_param("fbmem", early_parse_fbmem);
>
> +/*
> + * Pick out the memory size. We look for mem=size@start,
> + * where start and size are "size[KkMm]"

[KkMmGg]

> + */
> +static int __init early_mem(char **p)
> +{
> + unsigned long size, start;
> +
> + start = system_ram->start;
> + size = memparse(*p, p);

memparse() returns an unsigned long long. Is the truncation OK for avr32?

> + if (**p == '@')
> + start = memparse(*p + 1, p);
> +
> + system_ram->start = start;
> + system_ram->end = system_ram->start + size - 1;
> + return 0;
> +}
> +early_param("mem", early_mem);
> +
> static int __init parse_tag_core(struct tag *tag)
> {
> if (tag->hdr.size > 2) {
> --



---
~Randy
Linux Plumbers Conference, 17-19 September 2008, Portland, Oregon USA
http://linuxplumbersconf.org/


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