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Message-ID: <56d3285a-ed22-44bd-8c22-ce51ad159a81@linaro.org>
Date: Mon, 25 Mar 2024 11:43:48 -0600
From: Daniel Díaz <daniel.diaz@...aro.org>
To: Sasha Levin <sashal@...nel.org>, linux-kernel@...r.kernel.org,
stable@...r.kernel.org
Cc: torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
linux@...ck-us.net, shuah@...nel.org, patches@...nelci.org,
lkft-triage@...ts.linaro.org, florian.fainelli@...adcom.com, pavel@...x.de,
samitolvanen@...gle.com
Subject: Re: [PATCH 6.7 000/707] 6.7.11-rc2 review
Hello!
On 25/03/24 6:00 a. m., Sasha Levin wrote:
> This is the start of the stable review cycle for the 6.7.11 release.
> There are 707 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.
>
> Responses should be made by Wed Mar 27 12:00:02 PM UTC 2024.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/patch/?id=linux-6.7.y&id2=v6.7.10
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.7.y
> and the diffstat can be found below.
>
> Thanks,
> Sasha
We see *lots* of new warnings in RISC-V with Clang 17. Here's one:
-----8<-----
/builds/linux/mm/oom_kill.c:1195:1: warning: unused function '___se_sys_process_mrelease' [-Wunused-function]
1195 | SYSCALL_DEFINE2(process_mrelease, int, pidfd, unsigned int, flags)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/builds/linux/include/linux/syscalls.h:221:36: note: expanded from macro 'SYSCALL_DEFINE2'
221 | #define SYSCALL_DEFINE2(name, ...) SYSCALL_DEFINEx(2, _##name, __VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/builds/linux/include/linux/syscalls.h:231:2: note: expanded from macro 'SYSCALL_DEFINEx'
231 | __SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/builds/linux/arch/riscv/include/asm/syscall_wrapper.h:81:2: note: expanded from macro '__SYSCALL_DEFINEx'
81 | __SYSCALL_SE_DEFINEx(x, sys, name, __VA_ARGS__) \
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/builds/linux/arch/riscv/include/asm/syscall_wrapper.h:40:14: note: expanded from macro '__SYSCALL_SE_DEFINEx'
40 | static long ___se_##prefix##name(__MAP(x,__SC_LONG,__VA_ARGS__))
| ^~~~~~~~~~~~~~~~~~~~
<scratch space>:30:1: note: expanded from here
30 | ___se_sys_process_mrelease
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
----->8-----
Bisection points to:
commit 9b4a60bd0b1fa521e786c809ec8815291f150c47
Author: Sami Tolvanen <samitolvanen@...gle.com>
Date: Mon Mar 11 19:31:44 2024 +0000
riscv: Fix syscall wrapper for >word-size arguments
[ Upstream commit a9ad73295cc1e3af0253eee7d08943b2419444c4 ]
Reverting that patch makes the (300+) warnings disappear.
Reproducer:
tuxmake --runtime podman --target-arch riscv --toolchain clang-17 --kconfig allnoconfig --kconfig-add rv32_defconfig LLVM=1
Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>
Greetings!
Daniel Díaz
daniel.diaz@...aro.org
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