linux-kernel - Re: [PATCH 6.17 000/247] 6.17.9-rc1 review

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Message-ID: <c982e824-3924-4fc0-aea8-9f940bb5f5b9@gmx.de>
Date: Fri, 21 Nov 2025 15:30:32 +0100
From: Ronald Warsow <rwarsow@....de>
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, conor@...nel.org,
 hargar@...rosoft.com, broonie@...nel.org, achill@...ill.org,
 sr@...dewatkins.com
Subject: Re: [PATCH 6.17 000/247] 6.17.9-rc1 review

Hi

with CONFIG_KEXEC_HANDOVER=n

no regressions here on x86_64 (RKL, Intel 11th Gen. CPU)


but with CONFIG_KEXEC_HANDOVER=y
the compiler runs in an error:

...
                 from kernel/kexec_handover.c:12:
kernel/kexec_handover.c: In function ‘kho_preserve_phys’:
kernel/kexec_handover.c:732:41: error: ‘nr_pages’ undeclared (first use 
in this function); did you mean ‘dir_pages’?
   732 |                                         nr_pages << PAGE_SHIFT))) {
       |                                         ^~~~~~~~
./include/asm-generic/bug.h:123:32: note: in definition of macro ‘WARN_ON’
   123 |         int __ret_warn_on = !!(condition); 
         \
       |                                ^~~~~~~~~
kernel/kexec_handover.c:732:41: note: each undeclared identifier is 
reported only once for each function it appears in
   732 |                                         nr_pages << PAGE_SHIFT))) {
       |                                         ^~~~~~~~
./include/asm-generic/bug.h:123:32: note: in definition of macro ‘WARN_ON’
   123 |         int __ret_warn_on = !!(condition); 
         \
       |                                ^~~~~~~~~
make[3]: *** [scripts/Makefile.build:287: kernel/kexec_handover.o] Error 1

...
===

I guess one of the four kho:* patches contains the bug

anyway

Thanks

Tested-by: Ronald Warsow <rwarsow@....de>