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

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Date:   Wed, 15 May 2019 07:18:30 +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 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")?

thanks,

greg k-h