Subject: Re: powerpc: Make PPC_64K_PAGES depend on only 44x or PPC_BOOK3S_64

From: Michael Ellerman <[email-masked]>
Date: Fri, 22 Feb 2019 20:47:48 +1100 (AEDT)

On Fri, 2019-02-08 at 12:34:16 UTC, Michael Ellerman wrote:
> In commit 7820856a4fcd ("powerpc/mm/book3e/64: Remove unsupported
> 64Kpage size from 64bit booke") we dropped the 64K page size support
> from the 64-bit nohash (Book3E) code.
> 
> But we didn't update the dependencies of the PPC_64K_PAGES option,
> meaning a randconfig can still trigger this code and cause a build
> breakage, eg:
>   arch/powerpc/include/asm/nohash/64/pgtable.h:14:2: error: #error "Page size not supported"
>   arch/powerpc/include/asm/nohash/mmu-book3e.h:275:2: error: #error Unsupported page size
> 
> So remove PPC_BOOK3E_64 from the dependencies. This also means we
> don't need to worry about PPC_FSL_BOOK3E, because that was just trying
> to prevent the PPC_BOOK3E_64=y && PPC_FSL_BOOK3E=y case.
> 
> Signed-off-by: Michael Ellerman <[email-masked]>

Applied to powerpc next.

https://git.kernel.org/powerpc/c/bba436309d579f306419e0bffe8a28a5

cheers