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Message-ID: <202209160742.81BE54E@keescook> Date: Fri, 16 Sep 2022 07:42:55 -0700 From: Kees Cook <keescook@...omium.org> To: "Gustavo A. R. Silva" <gustavoars@...nel.org> Cc: Michael Ellerman <mpe@...erman.id.au>, Nicholas Piggin <npiggin@...il.com>, Christophe Leroy <christophe.leroy@...roup.eu>, linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org Subject: Re: [PATCH][next] powerpc/xmon: Fix -Wswitch-unreachable warning in bpt_cmds On Fri, Sep 16, 2022 at 03:15:04PM +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; > | ^~~~ > > Fixes: 09b6c1129f89 ("powerpc/xmon: Fix compile error with PPC_8xx=y") > Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org> Reviewed-by: Kees Cook <keescook@...omium.org> -- Kees Cook
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