linux-kernel - Re: Build regressions/improvements in v5.15-rc1

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Date:   Mon, 13 Sep 2021 09:20:44 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:     Wenpeng Liang <liangwenpeng@...wei.com>,
        Weihang Li <liweihang@...wei.com>,
        linux-rdma <linux-rdma@...r.kernel.org>
Subject: Re: Build regressions/improvements in v5.15-rc1

On Mon, Sep 13, 2021 at 9:10 AM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
> Below is the list of build error/warning regressions/improvements in
> v5.15-rc1[1] compared to v5.14[2].
>
> Summarized:
>   - build errors: +62/-12

>   + /kisskb/src/include/linux/compiler_types.h: error: call to '__compiletime_assert_1859' declared with attribute error: FIELD_PREP: value too large for the field:  => 322:38
>   + /kisskb/src/include/linux/compiler_types.h: error: call to '__compiletime_assert_1866' declared with attribute error: FIELD_PREP: value too large for the field:  => 322:38

Actual error in drivers/infiniband/hw/hns/hns_roce_hw_v2.c

arm64-gcc5.4/arm64-allmodconfig
arm64-gcc8/arm64-allmodconfig

>   + error: modpost: "__aeabi_ldivmod" [drivers/block/nbd.ko] undefined!:  => N/A
>   + error: nbd.c: undefined reference to `__aeabi_ldivmod':  => .text+0x246c), .text+0x2334)

arm-gcc4.9/imote2_defconfig
arm-gcc4.9/ep93xx_defconfig
arm-gcc4.9/colibri_pxa270_defconfig
arm-gcc4.9/ezx_defconfig
arm-gcc4.9/mini2440_defconfig
arm-gcc4.9/trizeps4_defconfig

>   + error: modpost: "__divdi3" [drivers/block/nbd.ko] undefined!:  => N/A
>   + error: nbd.c: undefined reference to `__divdi3':  => .text+0x24a0), .text+0x2458)

powerpc-gcc4.9/corenet32_smp_defconfig
powerpc-gcc4.9/mpc85xx_defconfig
powerpc-gcc4.9/ppc6xx_defconfig
mips-gcc4.9/malta_defconfig
arm-gcc4.9/iop32x_defconfig
arm-gcc4.9/s3c2410_defconfig
arm-gcc4.9/badge4_defconfig
arm-gcc4.9/footbridge_defconfig
arm-gcc4.9/jornada720_defconfig
arm-gcc4.9/lpd270_defconfig

The others are fallout of -Werror.  Still, it would be good to get them
fixed, too.

>   - build warnings: +6/-267

Amazing, we still have new build warnings ;-)

> [1] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/6880fa6c56601bb8ed59df6c30fd390cc5f6dd8f/ (all 182 configs)
> [2] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/7d2a07b769330c34b4deabeed939325c77a7ec2f/ (all 182 configs)

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds