linux-kernel - Re: Build regressions/improvements in v5.16-rc1

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Date:   Mon, 15 Nov 2021 17:44:46 +0100
From:   Helge Deller <deller@....de>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:     Nick Terrell <terrelln@...com>, Rob Clark <robdclark@...il.com>,
        "James E.J. Bottomley" <James.Bottomley@...senpartnership.com>,
        Anton Altaparmakov <anton@...era.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Sergio Paracuellos <sergio.paracuellos@...il.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Joey Gouly <joey.gouly@....com>,
        Stan Skowronek <stan@...ellium.com>,
        Hector Martin <marcan@...can.st>,
        Andrey Ryabinin <ryabinin.a.a@...il.com>,
        André Almeida <andrealmeid@...labora.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Parisc List <linux-parisc@...r.kernel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        DRI Development <dri-devel@...ts.freedesktop.org>,
        linux-ntfs-dev@...ts.sourceforge.net,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        "open list:BROADCOM NVRAM DRIVER" <linux-mips@...r.kernel.org>,
        linux-pci <linux-pci@...r.kernel.org>,
        Linux Crypto Mailing List <linux-crypto@...r.kernel.org>,
        kasan-dev <kasan-dev@...glegroups.com>
Subject: Re: Build regressions/improvements in v5.16-rc1

On 11/15/21 17:12, Geert Uytterhoeven wrote:
> On Mon, Nov 15, 2021 at 4:54 PM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>> Below is the list of build error/warning regressions/improvements in
>> v5.16-rc1[1] compared to v5.15[2].
>>
>> Summarized:
>>   - build errors: +20/-13
>>   - build warnings: +3/-28
>>
>> Happy fixing! ;-)
>>
>> Thanks to the linux-next team for providing the build service.
>>
>> [1] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/fa55b7dcdc43c1aa1ba12bca9d2dd4318c2a0dbf/ (all 90 configs)
>> [2] http://kisskb.ellerman.id.au/kisskb/branch/linus/head/8bb7eca972ad531c9b149c0a51ab43a417385813/ (all 90 configs)
>>
>>
>> *** ERRORS ***
>>
>> 20 error regressions:
>>   + /kisskb/src/arch/parisc/include/asm/jump_label.h: error: expected ':' before '__stringify':  => 33:4, 18:4
>>   + /kisskb/src/arch/parisc/include/asm/jump_label.h: error: label 'l_yes' defined but not used [-Werror=unused-label]:  => 38:1, 23:1
>
>     due to static_branch_likely() in crypto/api.c
>
> parisc-allmodconfig

fixed now in the parisc for-next git tree.


>>   + /kisskb/src/drivers/gpu/drm/msm/msm_drv.h: error: "COND" redefined [-Werror]:  => 531
>>   + /kisskb/src/lib/zstd/compress/zstd_double_fast.c: error: the frame size of 3252 bytes is larger than 1536 bytes [-Werror=frame-larger-than=]:  => 47:1
>>   + /kisskb/src/lib/zstd/compress/zstd_double_fast.c: error: the frame size of 3360 bytes is larger than 1536 bytes [-Werror=frame-larger-than=]:  => 499:1
>>   + /kisskb/src/lib/zstd/compress/zstd_double_fast.c: error: the frame size of 5344 bytes is larger than 1536 bytes [-Werror=frame-larger-than=]:  => 334:1
>>   + /kisskb/src/lib/zstd/compress/zstd_double_fast.c: error: the frame size of 5380 bytes is larger than 1536 bytes [-Werror=frame-larger-than=]:  => 354:1
>>   + /kisskb/src/lib/zstd/compress/zstd_fast.c: error: the frame size of 1824 bytes is larger than 1536 bytes [-Werror=frame-larger-than=]:  => 372:1
>>   + /kisskb/src/lib/zstd/compress/zstd_fast.c: error: the frame size of 2224 bytes is larger than 1536 bytes [-Werror=frame-larger-than=]:  => 204:1
>>   + /kisskb/src/lib/zstd/compress/zstd_fast.c: error: the frame size of 3800 bytes is larger than 1536 bytes [-Werror=frame-larger-than=]:  => 476:1
>
> parisc-allmodconfig

parisc needs much bigger frame sizes, so I'm not astonished here.
During the v5.15 cycl I increased it to 1536 (from 1280), so I'm simply tempted to
increase it this time to 4096, unless someone has a better idea....

>>   + /kisskb/src/fs/ntfs/aops.c: error: the frame size of 2240 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]:  => 1311:1
>>   + /kisskb/src/fs/ntfs/aops.c: error: the frame size of 2304 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]:  => 1311:1
>>   + /kisskb/src/fs/ntfs/aops.c: error: the frame size of 2320 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]:  => 1311:1
>
> powerpc-allmodconfig
>
>>   + /kisskb/src/include/linux/compiler_types.h: error: call to '__compiletime_assert_366' declared with attribute error: FIELD_PREP: value too large for the field:  => 335:38
>
>     in drivers/pinctrl/pinctrl-apple-gpio.c
>
> arm64-allmodconfig (gcc8)
>
>>   + /kisskb/src/include/linux/fortify-string.h: error: call to '__read_overflow' declared with attribute error: detected read beyond size of object (1st parameter):  => 263:25, 277:17
>
>     in lib/test_kasan.c
>
> s390-all{mod,yes}config
> arm64-allmodconfig (gcc11)
>
>>   + error: modpost: "mips_cm_is64" [drivers/pci/controller/pcie-mt7621.ko] undefined!:  => N/A
>>   + error: modpost: "mips_cm_lock_other" [drivers/pci/controller/pcie-mt7621.ko] undefined!:  => N/A
>>   + error: modpost: "mips_cm_unlock_other" [drivers/pci/controller/pcie-mt7621.ko] undefined!:  => N/A
>>   + error: modpost: "mips_cpc_base" [drivers/pci/controller/pcie-mt7621.ko] undefined!:  => N/A
>>   + error: modpost: "mips_gcr_base" [drivers/pci/controller/pcie-mt7621.ko] undefined!:  => N/A
>
> mips-allmodconfig
>
>> 3 warning regressions:
>>   + <stdin>: warning: #warning syscall futex_waitv not implemented [-Wcpp]:  => 1559:2
>
> powerpc, m68k, mips, s390, parisc (and probably more)

Will someone update all of them at once?




Helge


>>   + arch/m68k/configs/multi_defconfig: warning: symbol value 'm' invalid for MCTP:  => 322
>>   + arch/m68k/configs/sun3_defconfig: warning: symbol value 'm' invalid for MCTP:  => 295
>
> Yeah, that happens when symbols are changed from tristate to bool...
> Will be fixed in 5.17-rc1, with the next defconfig refresh.
>
> 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
>