[U-Boot] [PATCH v2 16/21] hash: Add a flag to support saving hashes in the environment

[Wolfgang Denk]

Dear Simon Glass,

In message <1361379515-23802-17-git-send-email-sjg at chromium.org> you wrote:
> Some hashing commands permit saving the hash in an environment variable,
> and verifying a hash from there. But the crc32 command does not support
> this. In order to permit crc32 to use the generic hashing infrastructure,
> add a flag to select which behaviour to use.

<nitpick>

...
> +	/*
> +	 * If environment variables are allowed, then we assume that 'dest'
> +	 * is an environment variable, unless it starts with *, in which
> +	 * case we assume it is an address. If not allowed, it ia always an

s/it ia/it is/

</nitpick>

What's the impact of these changes on the memory footprint?

Best regards,

Wolfgang Denk

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