linux-kernel - Re: linux-next: build failure after merge of the powerpc tree

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Message-Id: <46kpWr3kTYz9sPp@ozlabs.org>
Date:   Fri,  4 Oct 2019 09:05:44 +1000 (AEST)
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Stephen Rothwell <sfr@...b.auug.org.au>,
        PowerPC <linuxppc-dev@...ts.ozlabs.org>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Nicholas Piggin <npiggin@...il.com>
Subject: Re: linux-next: build failure after merge of the powerpc tree

On Mon, 2019-09-30 at 00:13:42 UTC, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the powerpc tree, today's linux-next build (powerpc64
> allnoconfig) failed like this:
> 
> arch/powerpc/mm/book3s64/pgtable.c: In function 'flush_partition':
> arch/powerpc/mm/book3s64/pgtable.c:216:3: error: implicit declaration of fu=
> nction 'radix__flush_all_lpid_guest'; did you mean 'radix__flush_all_lpid'?=
>  [-Werror=3Dimplicit-function-declaration]
>   216 |   radix__flush_all_lpid_guest(lpid);
>       |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>       |   radix__flush_all_lpid
> 
> Caused by commit
> 
>   99161de3a283 ("powerpc/64s/radix: tidy up TLB flushing code")
> 
> radix__flush_all_lpid_guest() is only declared for CONFIG_PPC_RADIX_MMU
> which is not set for this build.
> 
> I am not sure why this did not show up earlier (maybe a Kconfig
> change?).
> 
> I added the following hack for today.
> 
> From: Stephen Rothwell <sfr@...b.auug.org.au>
> Date: Mon, 30 Sep 2019 10:09:17 +1000
> Subject: [PATCH] powerpc/64s/radix: fix for "tidy up TLB flushing code" and
>  !CONFIG_PPC_RADIX_MMU
> 
> Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/8996ae8f05a1cc5559120aaec36183edb9c68c50

cheers