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From:   Naresh Kamboju <naresh.kamboju@linaro.org>
Date:   Tue, 8 Mar 2022 23:08:10 +0530
Message-ID: <CA+G9fYv74gGWQLkEZ4idGYri+F9BFV1+9=bz5L0+aophSzDdVA@mail.gmail.com>
Subject: Re: [PATCH 5.15 000/256] 5.15.27-rc2 review
To:     Sudip Mukherjee <sudipm.mukherjee@gmail.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Huang Pei <huangpei@loongson.cn>,
        Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc:     linux-kernel <linux-kernel@vger.kernel.org>,
        Stable <stable@vger.kernel.org>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Guenter Roeck <linux@roeck-us.net>,
        Shuah Khan <shuah@kernel.org>, patches@kernelci.org,
        lkft-triage@lists.linaro.org, Pavel Machek <pavel@denx.de>,
        Jonathan Hunter <jonathanh@nvidia.com>,
        Florian Fainelli <f.fainelli@gmail.com>, slade@sladewatkins.com
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Hi Greg,

On Tue, 8 Mar 2022 at 21:40, Sudip Mukherjee <sudipm.mukherjee@gmail.com> wrote:
>
> On Tue, Mar 8, 2022 at 3:36 PM Sudip Mukherjee
> <sudipm.mukherjee@gmail.com> wrote:
> >
> > Hi Greg,
> >
> > On Mon, Mar 07, 2022 at 05:28:50PM +0100, Greg Kroah-Hartman wrote:
> > > This is the start of the stable review cycle for the 5.15.27 release.
> > > There are 256 patches in this series, all will be posted as a response
> > > to this one.  If anyone has any issues with these being applied, please
> > > let me know.
> > >
>
> <snip>
>
> >
> > Mips failures,
> >
> > allmodconfig, gpr_defconfig and mtx1_defconfig fails with:

LKFT build regression noticed as Sudip reported.
   - mips-gcc-10-allmodconfig - FAILED.

>
> And, here is the bisect log:
>
> # bad: [7b9aacd770fa105a0a5f0be43bc72ce176d30331] Linux 5.15.27-rc2
> # good: [8993e6067f263765fd26edabf3e3012e3ec4d81e] Linux 5.15.26
> git bisect start 'HEAD' 'v5.15.26'
> # bad: [6d4f8e67749d97f83f377911e874ca116be71fbd] drm/amd/display: For
> vblank_disable_immediate, check PSR is really used
> git bisect bad 6d4f8e67749d97f83f377911e874ca116be71fbd
> # bad: [527ec9ffce51cb10a3172380aba30066ee2d056c] Input: ti_am335x_tsc
> - fix STEPCONFIG setup for Z2
> git bisect bad 527ec9ffce51cb10a3172380aba30066ee2d056c
> # good: [96039b910c5a933221faa9aeca4f2fb2fa4976a1] arm64: Mark
> start_backtrace() notrace and NOKPROBE_SYMBOL
> git bisect good 96039b910c5a933221faa9aeca4f2fb2fa4976a1
> # bad: [4778338032b338f80393b9dfab6832d02bddb819] MIPS: fix
> local_{add,sub}_return on MIPS64
> git bisect bad 4778338032b338f80393b9dfab6832d02bddb819
> # good: [ba52217d4edd5824427134cfdfa9c2ab4390d77f] drm/amdgpu: check
> vm ready by amdgpu_vm->evicting flag
> git bisect good ba52217d4edd5824427134cfdfa9c2ab4390d77f
> # good: [9eeb0cb7e2d675e3bbecc08302e3bafe21c61c52] NFSD: Fix
> zero-length NFSv3 WRITEs
> git bisect good 9eeb0cb7e2d675e3bbecc08302e3bafe21c61c52
> # good: [8e68b6e3bdce82f387619e7fb6e85e6be9820182]
> tools/resolve_btf_ids: Close ELF file on error
> git bisect good 8e68b6e3bdce82f387619e7fb6e85e6be9820182
> # good: [238d4d64ad4da4acefedd73094be0d1051897810] mtd: spi-nor: Fix
> mtd size for s3an flashes
> git bisect good 238d4d64ad4da4acefedd73094be0d1051897810
> # first bad commit: [4778338032b338f80393b9dfab6832d02bddb819] MIPS:
> fix local_{add,sub}_return on MIPS64
>
> Reverting 4778338032b3 ("MIPS: fix local_{add,sub}_return on MIPS64")
> has fixed all the 3 build failures.

MIPS: fix local_{add,sub}_return on MIPS64
[ Upstream commit 277c8cb3e8ac199f075bf9576ad286687ed17173 ]

Use "daddu/dsubu" for long int on MIPS64 instead of "addu/subu"

Fixes: 7232311ef14c ("local_t: mips extension")
Signed-off-by: Huang Pei <huangpei@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>

--
Linaro LKFT
https://lkft.linaro.org