linux-kernel - Re: [PATCH 6.6 000/741] 6.6.33-rc2 review

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Date: Sun, 9 Jun 2024 23:21:55 -0700
From: Ron Economos <re@...z.net>
To: Pavel Machek <pavel@...x.de>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: stable@...r.kernel.org, patches@...ts.linux.dev,
 linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
 akpm@...ux-foundation.org, linux@...ck-us.net, shuah@...nel.org,
 patches@...nelci.org, lkft-triage@...ts.linaro.org, jonathanh@...dia.com,
 f.fainelli@...il.com, sudipm.mukherjee@...il.com, srw@...dewatkins.net,
 rwarsow@....de, conor@...nel.org, allen.lkml@...il.com, broonie@...nel.org
Subject: Re: [PATCH 6.6 000/741] 6.6.33-rc2 review

On 6/9/24 12:34 PM, Pavel Machek wrote:
> Hi!
>
>> This is the start of the stable review cycle for the 6.6.33 release.
>> There are 741 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.
> 6.6 seems to have build problem on risc-v:
>
>    CC      kernel/locking/qrwlock.o
> 690
>    CC      lib/bug.o
> 691
>    CC      block/blk-rq-qos.o
> 692
> arch/riscv/kernel/suspend.c: In function 'suspend_save_csrs':
> 693
> arch/riscv/kernel/suspend.c:14:66: error: 'RISCV_ISA_EXT_XLINUXENVCFG' undeclared (first use in this function); did you mean 'RISCV_ISA_EXT_ZIFENCEI'?
> 694
>     14 |         if (riscv_cpu_has_extension_unlikely(smp_processor_id(), RISCV_ISA_EXT_XLINUXENVCFG))
> 695
>        |                                                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
> 696
>        |                                                                  RISCV_ISA_EXT_ZIFENCEI
> 697
> arch/riscv/kernel/suspend.c:14:66: note: each undeclared identifier is reported only once for each function it appears in
> 698
>    CC      io_uring/io-wq.o
> 699
> arch/riscv/kernel/suspend.c: In function 'suspend_restore_csrs':
> 700
> arch/riscv/kernel/suspend.c:37:66: error: 'RISCV_ISA_EXT_XLINUXENVCFG' undeclared (first use in this function); did you mean 'RISCV_ISA_EXT_ZIFENCEI'?
> 701
>     37 |         if (riscv_cpu_has_extension_unlikely(smp_processor_id(), RISCV_ISA_EXT_XLINUXENVCFG))
> 702
>        |                                                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
> 703
>        |                                                                  RISCV_ISA_EXT_ZIFENCEI
> 704
> make[4]: *** [scripts/Makefile.build:243: arch/riscv/kernel/suspend.o] Error 1
> 705
> make[3]: *** [scripts/Makefile.build:480: arch/riscv/kernel] Error 2
> 706
> make[2]: *** [scripts/Makefile.build:480: arch/riscv] Error 2
> 707
> make[2]: *** Waiting for unfinished jobs....
> 708
>    CC      lib/buildid.o
> 709
>
> https://gitlab.com/cip-project/cip-testing/linux-stable-rc-ci/-/jobs/7053222239
> https://gitlab.com/cip-project/cip-testing/linux-stable-rc-ci/-/pipelines/1324369118
>
> No problems detected on 6.8-stable and 6.1-stable.
>
> Best regards,
> 								Pavel

I'm seeing the same thing here. Somehow some extra patches got slipped 
in between rc1 and rc2. The new patches for RISC-V are:

Samuel Holland <samuel.holland@...ive.com>
     riscv: Save/restore envcfg CSR during CPU suspend

commit 88b55a586b87994a33e0285c9e8881485e9b77ea

Samuel Holland <samuel.holland@...ive.com>
     riscv: Fix enabling cbo.zero when running in M-mode

commit 8c6e096cf527d65e693bfbf00aa6791149c58552

The first patch "riscv: Save/restore envcfg CSR during CPU suspend" 
causes the build failure.