linux-kernel - Re: Build regressions/improvements in v5.18-rc2

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Date:   Tue, 12 Apr 2022 10:58:31 +0300
From:   Kalle Valo <kvalo@...nel.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Felix Fietkau <nbd@....name>,
        Lorenzo Bianconi <lorenzo.bianconi83@...il.com>,
        Ryder Lee <ryder.lee@...iatek.com>,
        sparclinux <sparclinux@...r.kernel.org>,
        linux-wireless <linux-wireless@...r.kernel.org>
Subject: Re: Build regressions/improvements in v5.18-rc2

Geert Uytterhoeven <geert@...ux-m68k.org> writes:

> Hi Kalle,
>
> On Mon, Apr 11, 2022 at 8:15 PM Kalle Valo <kvalo@...nel.org> wrote:
>> Geert Uytterhoeven <geert@...ux-m68k.org> writes:
>> > On Mon, 11 Apr 2022, Geert Uytterhoeven wrote:
>> >> JFYI, when comparing v5.18-rc2[1] to v5.18-rc1[3], the summaries are:
>
>> >   + /kisskb/src/include/linux/compiler_types.h: error: call to '__compiletime_assert_491' declared with attribute error: FIELD_PREP: mask is not constant:  => 352:38
>> >   + /kisskb/src/include/linux/compiler_types.h: error: call to '__compiletime_assert_520' declared with attribute error: FIELD_PREP: mask is not constant:  => 352:38
>> >
>> > mipsel/mips-allmodconfig
>> > arm64-gcc5.4/arm64-allmodconfig
>> >
>> > Actual error is:
>> >
>> >     /kisskb/src/drivers/net/wireless/mediatek/mt76/mt76x2/pci.c: In function 'mt76x2e_probe':
>> >     /kisskb/src/include/linux/compiler_types.h:352:38: error: call to '__compiletime_assert_520' declared with attribute error: FIELD_PREP: mask is not constant
>>
>> Does this commit fix it:
>>
>> https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless.git/commit/?id=dbc2b1764734857d68425468ffa8486e97ab89df
>>
>> Or is this another issue?
>
> I'm not in a position to verify this, but given both configs used gcc-5,
> I assume this will fix the issue.

Ok, do let me know if the commit doesn't fix the warning.

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