linux-kernel - Re: [PATCH] powerpc/signal: Fix possible build failure with unsafe_copy_fpr_{to/from}

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Date:   Sun, 16 May 2021 08:43:54 +1000
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Paul Mackerras <paulus@...ba.org>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Christophe Leroy <christophe.leroy@...roup.eu>
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH] powerpc/signal: Fix possible build failure with unsafe_copy_fpr_{to/from}_user

On Sat, 8 May 2021 09:25:44 +0000 (UTC), Christophe Leroy wrote:
> When neither CONFIG_VSX nor CONFIG_PPC_FPU_REGS are selected,
> unsafe_copy_fpr_to_user() and unsafe_copy_fpr_from_user() are
> doing nothing.
> 
> Then, unless the 'label' operand is used elsewhere, GCC complains
> about it being defined but not used.
> 
> [...]

Applied to powerpc/fixes.

[1/1] powerpc/signal: Fix possible build failure with unsafe_copy_fpr_{to/from}_user
      https://git.kernel.org/powerpc/c/bc581dbab26edf0b6acc98c76943b4a0c7d672a2

cheers