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Date:   Mon, 23 Jul 2018 14:06:12 -0700 (PDT)
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Subject: Re: Linux 4.18-rc6
From:   David Miller <davem@davemloft.net>
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From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon, 23 Jul 2018 13:56:15 -0700

> Hmm.  I assume it's
> 
>     arch/sparc/include/asm/cacheflush_32.h
> 
> that wants a forward-declaration of 'struct page', and doesn't include
> any header files.
> 
> The fix is presumably to move the
> 
>    #include <asm/cacheflush.h>
> 
> in drivers/staging/media/omap4iss/iss_video.c down to below the
> <linux/*> includes?
> 
> The old patchwork link you had for a fix no longer works, I think
> because the patchwork database got re-generated during the upgrade
> (and the patchwork numbering isn't stable).

I think modifying the include order in that driver is the best fix.

BTW, here is a proper patchwork link in the SPARC project on ozlabs:

http://patchwork.ozlabs.org/patch/947434/