linux-kernel - Re: linux-next: build warnings after merge of the kunit-next tree

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Message-ID: <CADQ6JjUpaNTSx-GBdk8U2_jAG5FgdyRGpg_=h2XiYm=+UOruRg@mail.gmail.com>
Date:   Thu, 15 Oct 2020 15:10:02 -0300
From:   Vitor Massaru Iha <vitor@...saru.org>
To:     Shuah Khan <skhan@...uxfoundation.org>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Brendan Higgins <brendanhiggins@...gle.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build warnings after merge of the kunit-next tree

Hi Shuah,


I already sent the patch:
https://patchwork.kernel.org/project/linux-kselftest/patch/20201015120851.229242-1-vitor@massaru.org

On Thu, Oct 15, 2020 at 3:01 PM Shuah Khan <skhan@...uxfoundation.org> wrote:
>
> On 10/15/20 4:43 AM, Vitor Massaru Iha wrote:
> > Hi Stephen,
> >
> > On Thu, Oct 15, 2020 at 2:31 AM Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> >>
> >> Hi all,
> >>
> >> After merging the kunit-next tree, today's linux-next build (x86_64
> >> allmodconfig) produced this warning:
> >>
> >> lib/bitfield_kunit.c: In function 'test_bitfields_compile':
> >> lib/bitfield_kunit.c:136:21: warning: unsigned conversion from 'int' to 'u16' {aka 'short unsigned int'} changes value from '393216' to '0' [-Woverflow]
> >>    136 |  u16_encode_bits(0, 0x60000);
> >>        |                     ^~~~~~~
> >> At top level:
> >> lib/bitfield_kunit.c:129:20: warning: 'test_bitfields_compile' defined but not used [-Wunused-function]
> >>    129 | static void __init test_bitfields_compile(struct kunit *context)
> >>        |                    ^~~~~~~~~~~~~~~~~~~~~~
> >>
> >> Introduced by commit
> >>
> >>    d2585f5164c2 ("lib: kunit: add bitfield test conversion to KUnit")
> >
> > I saw the problem, I will send the patch.
> >
>
> Please send the fix in as soon as possible. I will go ahead and send the
> pull request and will apply the fix in rc2.
>
> thanks,
> -- Shuah
>