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From: Tom Rix <trix@redhat.com>
To: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Cc: Kees Cook <kees@kernel.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Kees Cook <keescook@chromium.org>,
	mhiramat@kernel.org, akpm@linux-foundation.org,
	masahiroy@kernel.org, paulmck@kernel.org, hannes@cmpxchg.org,
	ojeda@kernel.org, thunder.leizhen@huawei.com,
	christophe.leroy@csgroup.eu, vbabka@suse.cz,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] init/Kconfig: extend -Wno-array-bounds to gcc 13
Date: Tue, 7 Mar 2023 05:28:53 -0800	[thread overview]
Message-ID: <e7eef530-16b8-0a5d-273d-98aa3f673e61@redhat.com> (raw)
In-Reply-To: <CANiq72kKmVzQYU7aOy4k0GsrgV=jfi_fLk2TvtWVGV_sXc8e2w@mail.gmail.com>


On 3/7/23 3:42 AM, Miguel Ojeda wrote:
> On Tue, Mar 7, 2023 at 2:07 AM Tom Rix <trix@redhat.com> wrote:
>> The build with fail generally with gcc 13.
>>
>> The warnings could be cleaned without having an error, but I looked at
>> multiple errors, none of them were real.
>>
>> imo this is a broken compiler option.
> I am not sure I understand -- my reading of Kees' message is that he
> would prefer to get the warning (rather than the kernel) fixed before
> GCC 13 releases.

yes, that would be ideal.

But anyone using gcc 13 in the meanwhile will have a broken build

and any other aspect of testing the kernel with gcc 13 would have

to be deferred to after the fix, if it happens.

>
> Are you asking to have the option disabled until GCC 13 releases and
> reevaluate then? How many warnings are you getting? Are those actual
> errors or `-Werror`?

With W=1, there are 40 error:'s, sorry I do not have the default logs at 
hand.

I looked about 10 of them over the weekend, they we all bogus.

So gcc needs to be fixed first, just disabling with -Wnoerror will

give folks bad problems that do not need fixing.


I am asking that we at least temporarily disable this option so

the build break is fixed.

Tom

>
> Cheers,
> Miguel
>


  reply	other threads:[~2023-03-07 13:32 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-06 22:09 [PATCH] init/Kconfig: extend -Wno-array-bounds to gcc 13 Tom Rix
2023-03-06 22:20 ` Nick Desaulniers
2023-03-06 23:02   ` Kees Cook
2023-03-07  1:07     ` Tom Rix
2023-03-07 11:42       ` Miguel Ojeda
2023-03-07 13:28         ` Tom Rix [this message]
2024-06-17 21:02 ` Kees Cook

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