[PATCH] ARM: Fix rd_size declaration

[Johannes Thumshirn]

On Tue, Apr 18, 2017 at 02:07:53PM +0000, Bart Van Assche wrote:
> Hello Johannes,
> 
> Thanks for the review. But are you aware that with the current content an
> include guard is overkill because it is safe to evaluate the "extern unsigned
> long rd_size" declaration multiple times?

Yes I am. But once someone does changes to this header and forgets the include
guard as well it may cause errors.

I am aware that this is rather cosmetic than needed, that's why I declared it
as a nit.

Byte,
	Johannes

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Johannes Thumshirn                                          Storage
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