linux-kernel - Re: [PATCH 5.15 000/567] 5.15.99-rc1 review

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Date:   Tue, 7 Mar 2023 17:06:23 -0600
From:   Daniel Díaz <daniel.diaz@...aro.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org
Cc:     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, pavel@...x.de, jonathanh@...dia.com,
        f.fainelli@...il.com, sudipm.mukherjee@...il.com,
        srw@...dewatkins.net, rwarsow@....de
Subject: Re: [PATCH 5.15 000/567] 5.15.99-rc1 review

Hello!

On 07/03/23 10:55, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.15.99 release.
> There are 567 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 Thu, 09 Mar 2023 16:57:34 +0000.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.99-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h

We see Perf failing to compile on: arm, arm64, i386, x86_64, under OpenEmbedded (GCC 11.3) when building for the following machines:
* Dragonboard 410c (arm64)
* Dragonboard 845c (arm64)
* Juno (arm64)
* X15 (arm)
* intel-core2-32 (i386)
* intel-corei7-64 (x86_64)

Error:
-----8<-----
util/intel-pt-decoder/intel-pt-decoder.c: In function 'intel_pt_eptw_lookahead_cb':
util/intel-pt-decoder/intel-pt-decoder.c:1445:7: error: 'INTEL_PT_CFE' undeclared (first use in this function); did you mean 'INTEL_PT_CBR'?
  1445 |  case INTEL_PT_CFE:
       |       ^~~~~~~~~~~~
       |       INTEL_PT_CBR
util/intel-pt-decoder/intel-pt-decoder.c:1445:7: note: each undeclared identifier is reported only once for each function it appears in
util/intel-pt-decoder/intel-pt-decoder.c:1446:7: error: 'INTEL_PT_CFE_IP' undeclared (first use in this function); did you mean 'INTEL_PT_BEP_IP'?
  1446 |  case INTEL_PT_CFE_IP:
       |       ^~~~~~~~~~~~~~~
       |       INTEL_PT_BEP_IP
util/intel-pt-decoder/intel-pt-decoder.c:1447:7: error: 'INTEL_PT_EVD' undeclared (first use in this function); did you mean 'INTEL_PT_OVF'?
  1447 |  case INTEL_PT_EVD:
       |       ^~~~~~~~~~~~
       |       INTEL_PT_OVF
----->8-----

Additionally, we see this same problem outside of OpenEmbedded but only on arm (32-bits), because in all other cases it fails to build at an earlier point with the already reported problem of init_disassemble_info() [1][2], so it's very likely to be there too on all architectures.

[1] https://lore.kernel.org/all/CAEUSe7-vBpHrbEy+eQrNZ_LTeqHpn2eQEr3C7cmfNYjK1YL4Ww@mail.gmail.com/
[2] https://lore.kernel.org/all/e6e2df31-6327-f2ad-3049-0cbfa214ae5c@hauke-m.de/

Greetings!

Daniel Díaz
daniel.diaz@...aro.org