[U-Boot-Users] [PATCH 4/17] Improve fdt move length handling.

[Grant Likely]

On 7/4/07, Jerry Van Baren <gvb.uboot at gmail.com> wrote:
> Make the length parameter optional: if not specified, do the move using
> the current size unchanged.
>
> Signed-off-by: Gerald Van Baren <vanbaren at cideas.com>
Acked-by: Grant Likely <grant.likely at secretlab.ca>

> ---
>  common/cmd_fdt.c |   21 +++++++++++++++------
>  1 files changed, 15 insertions(+), 6 deletions(-)
>
> diff --git a/common/cmd_fdt.c b/common/cmd_fdt.c
> index 08fe351..a119985 100644
> --- a/common/cmd_fdt.c
> +++ b/common/cmd_fdt.c
> @@ -115,7 +115,7 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
>                 int  len;
>                 int  err;
>
> -               if (argc != 5) {
> +               if (argc < 4) {
>                         printf ("Usage:\n%s\n", cmdtp->usage);
>                         return 1;
>                 }
> @@ -129,11 +129,20 @@ int do_fdt (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
>                 }
>
>                 newaddr = (struct fdt_header *)simple_strtoul(argv[3], NULL, 16);
> -               len     =  simple_strtoul(argv[4], NULL, 16);
> -               if (len < fdt_totalsize(fdt)) {
> -                       printf ("New length %d < existing length %d, aborting.\n",
> -                               len, fdt_totalsize(fdt));
> -                       return 1;
> +
> +               /*
> +                * If the user specifies a length, use that.  Otherwise use the
> +                * current length.
> +                */
> +               if (argc <= 4) {
> +                       len = fdt_totalsize(fdt);
> +               } else {
> +                       len = simple_strtoul(argv[4], NULL, 16);
> +                       if (len < fdt_totalsize(fdt)) {
> +                               printf ("New length 0x%X < existing length 0x%X, aborting.\n",
> +                                       len, fdt_totalsize(fdt));
> +                               return 1;
> +                       }
>                 }
>
>                 /*
> --
> 1.4.4.4
>
>
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-- 
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
grant.likely at secretlab.ca
(403) 399-0195