linux-kernel - Re: [PATCH] powerpc/security: Fix build break

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Date:   Wed, 15 May 2019 08:08:41 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Joel Stanley <joel@....id.au>
Cc:     Josh Poimboeuf <jpoimboe@...hat.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH] powerpc/security: Fix build break

On Wed, May 15, 2019 at 07:18:30AM +0200, Greg Kroah-Hartman wrote:
> On Wed, May 15, 2019 at 02:22:06PM +0930, Joel Stanley wrote:
> > This fixes a build break introduced in with the recent round of CPU
> > bug patches.
> > 
> >   arch/powerpc/kernel/security.c: In function ‘setup_barrier_nospec’:
> >   arch/powerpc/kernel/security.c:59:21: error: implicit declaration of
> >   function ‘cpu_mitigations_off’ [-Werror=implicit-function-declaration]
> >     if (!no_nospec && !cpu_mitigations_off())
> >                        ^~~~~~~~~~~~~~~~~~~
> > 
> > Fixes: 782e69efb3df ("powerpc/speculation: Support 'mitigations=' cmdline option")
> > Signed-off-by: Joel Stanley <joel@....id.au>
> > ---
> > This should be applied to the 4.14 and 4.19 trees. There is no issue
> > with 5.1. The commit message contains a fixes line for the commit in
> > Linus tree.
> > ---
> >  arch/powerpc/kernel/security.c | 1 +
> >  1 file changed, 1 insertion(+)
> 
> Isn't this just commit 42e2acde1237 ("powerpc/64s: Include cpu header")?

Which I have now queued up.