linux-hardening - Re: [PATCH][next] powerpc/xmon: Fix -Wswitch-unreachable warning in bpt

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Date:   Wed, 30 Nov 2022 20:23:55 +1100
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Michael Ellerman <mpe@...erman.id.au>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-hardening@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] powerpc/xmon: Fix -Wswitch-unreachable warning in bpt_cmds

On Fri, 16 Sep 2022 15:15:04 +0100, Gustavo A. R. Silva wrote:
> When building with automatic stack variable initialization, GCC 12
> complains about variables defined outside of switch case statements.
> Move the variable into the case that uses it, which silences the warning:
> 
> arch/powerpc/xmon/xmon.c: In function ‘bpt_cmds’:
> arch/powerpc/xmon/xmon.c:1529:13: warning: statement will never be executed [-Wswitch-unreachable]
>  1529 |         int mode;
>       |             ^~~~
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc/xmon: Fix -Wswitch-unreachable warning in bpt_cmds
      https://git.kernel.org/powerpc/c/1c4a4a4c8410be4a231a58b23e7a30923ff954ac

cheers