Re: [PATCH 1/1] libfdt: Change last_comp_version to fit spec

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On Tue, Nov 24, 2020 at 10:50 AM Justin Covell <jujugoboom@xxxxxxxxx> wrote:
>

Needs a commit message. For a single patch, you don't need a cover
letter. The explanation should be here.

Besides matching the spec, what problem are you trying to solve?

> ---
>  libfdt/fdt_sw.c | 2 +-
>  libfdt/libfdt.h | 1 +
>  2 files changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/libfdt/fdt_sw.c b/libfdt/fdt_sw.c
> index 68b543c..4c569ee 100644
> --- a/libfdt/fdt_sw.c
> +++ b/libfdt/fdt_sw.c
> @@ -377,7 +377,7 @@ int fdt_finish(void *fdt)
>         fdt_set_totalsize(fdt, newstroffset + fdt_size_dt_strings(fdt));
>
>         /* And fix up fields that were keeping intermediate state. */
> -       fdt_set_last_comp_version(fdt, FDT_FIRST_SUPPORTED_VERSION);
> +       fdt_set_last_comp_version(fdt, FDT_LAST_COMPATIBLE_VERSION);
>         fdt_set_magic(fdt, FDT_MAGIC);
>
>         return 0;
> diff --git a/libfdt/libfdt.h b/libfdt/libfdt.h
> index 89adee3..abad93b 100644
> --- a/libfdt/libfdt.h
> +++ b/libfdt/libfdt.h
> @@ -14,6 +14,7 @@ extern "C" {
>  #endif
>
>  #define FDT_FIRST_SUPPORTED_VERSION    0x02
> +#define FDT_LAST_COMPATIBLE_VERSION 0x10

If the above change is correct (I'm not sure it is offhand), why not
just bump up FDT_FIRST_SUPPORTED_VERSION value?

>  #define FDT_LAST_SUPPORTED_VERSION     0x11
>
>  /* Error codes: informative error codes */
> --
> 2.25.1
>



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