linux-kernel - Re: [v2,01/21] powerpc: Remove warning on array size when empty

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Message-Id: <401RH218Zgz9sVp@ozlabs.org>
Date:   Wed, 14 Mar 2018 20:28:24 +1100 (AEDT)
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Mathieu Malaterre <malat@...ian.org>
Cc:     Mathieu Malaterre <malat@...ian.org>, linux-kernel@...r.kernel.org,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Paul Mackerras <paulus@...ba.org>,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [v2,01/21] powerpc: Remove warning on array size when empty

On Fri, 2018-03-02 at 19:49:18 UTC, Mathieu Malaterre wrote:
> When neither CONFIG_ALTIVEC, nor CONFIG_VSX or CONFIG_PPC64 is defined, the
> array feature_properties is defined as an empty array, which in turn
> triggers the following warning (treated as error on W=1):
> 
>   CC      arch/powerpc/kernel/prom.o
> arch/powerpc/kernel/prom.c: In function ‘check_cpu_feature_properties’:
> arch/powerpc/kernel/prom.c:298:16: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]
>   for (i = 0; i < ARRAY_SIZE(feature_properties); ++i, ++fp) {
>                 ^
> cc1: all warnings being treated as errors
> 
> Suggested-by: Michael Ellerman <mpe@...erman.id.au>
> Signed-off-by: Mathieu Malaterre <malat@...ian.org>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/4f1f40f7b2b4487f582ecafec64076

cheers