From: Maxime Ripard <maxime@cerno.tech>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Naresh Kamboju <naresh.kamboju@linaro.org>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
open list <linux-kernel@vger.kernel.org>,
regressions@lists.linux.dev, lkft-triage@lists.linaro.org,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
John Donnelly <john.p.donnelly@oracle.com>,
Huacai Chen <chenhuacai@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
David Hildenbrand <david@redhat.com>,
"Guilherme G. Piccoli" <gpiccoli@igalia.com>,
Zhen Lei <thunder.leizhen@huawei.com>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Kefeng Wang <wangkefeng.wang@huawei.com>
Subject: Re: gcc-12: build errors: arch/arm64/kernel/setup.c:225:56: warning: array subscript -1 is outside array bounds of 'char[]' [-Warray-bounds]
Date: Mon, 6 Jun 2022 11:01:29 +0200 [thread overview]
Message-ID: <20220606090129.mpidmwwobgkcfc2v@houat> (raw)
In-Reply-To: <CAK8P3a3QKWxqGore3+_DJnWo7bJgvDhkZjtkyg5EUg4_D=mE2w@mail.gmail.com>
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Hi,
On Fri, Jun 03, 2022 at 09:40:07AM +0200, Arnd Bergmann wrote:
> On Fri, Jun 3, 2022 at 4:03 AM Naresh Kamboju <naresh.kamboju@linaro.org> wrote:
> > inlined from 'setup_arch' at arch/arm64/kernel/setup.c:350:2:
> > arch/arm64/kernel/setup.c:225:56: warning: array subscript -1 is
> > outside array bounds of 'char[]' [-Warray-bounds]
> > 225 | kernel_code.end = __pa_symbol(__init_begin - 1);
> >
>
> Is this the only warning of this type that you get for arm64?
In that function, both kernel_code.end and kernel_data_end show a
similar warning in 5.19-rc1
> I think the easy fix would be to reword this line to
>
> kernel_code.end = __pa_symbol(__init_begin) - 1;
Doing this for both fix the warnings.
Maxime
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next prev parent reply other threads:[~2022-06-06 9:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-03 2:03 gcc-12: build errors: arch/arm64/kernel/setup.c:225:56: warning: array subscript -1 is outside array bounds of 'char[]' [-Warray-bounds] Naresh Kamboju
2022-06-03 7:40 ` Arnd Bergmann
2022-06-06 9:01 ` Maxime Ripard [this message]
2022-06-06 9:41 ` Mark Rutland
2022-06-08 6:54 ` Arnd Bergmann
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