linux-kernel - Re: [PATCH 5.15 000/392] 5.15.197-rc1 review

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Message-ID: <b4d4d33e-07d8-4868-abc5-4161a63bb948@gmail.com>
Date: Wed, 3 Dec 2025 10:51:17 -0800
From: Florian Fainelli <f.fainelli@...il.com>
To: Mark Brown <broonie@...nel.org>,
 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, pavel@...x.de,
 jonathanh@...dia.com, sudipm.mukherjee@...il.com, rwarsow@....de,
 conor@...nel.org, hargar@...rosoft.com, achill@...ill.org,
 sr@...dewatkins.com
Subject: Re: [PATCH 5.15 000/392] 5.15.197-rc1 review

On 12/3/25 10:46, Mark Brown wrote:
> On Wed, Dec 03, 2025 at 04:22:30PM +0100, Greg Kroah-Hartman wrote:
>> This is the start of the stable review cycle for the 5.15.197 release.
>> There are 392 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.
> 
> I'm seeing a build failure in the KVM selftests on arm64 with this, due
> to dddac591bc98 (tools bitmap: Add missing asm-generic/bitsperlong.h
> include):
> 
> aarch64-linux-gnu-gcc -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu9
> 9 -fno-stack-protector -fno-PIE -I../../../../tools/include -I../../../../tools/
> arch/arm64/include -I../../../../usr/include/ -Iinclude -I. -Iinclude/aarch64 -I
> ..   -pthread  -no-pie    dirty_log_perf_test.c /build/stage/build-work/kselftes
> t/kvm/libkvm.a  -o /build/stage/build-work/kselftest/kvm/dirty_log_perf_test
> In file included from ../../../../tools/include/linux/bitmap.h:6,
>                   from dirty_log_perf_test.c:15:
> ../../../../tools/include/asm-generic/bitsperlong.h:14:2: error: #error Inconsis
> tent word size. Check asm/bitsperlong.h
>     14 | #error Inconsistent word size. Check asm/bitsperlong.h
>        |  ^~~~~
> In file included from ../../../../usr/include/asm-generic/int-ll64.h:12,
>                   from ../../../../usr/include/asm-generic/types.h:7,
>                   from ../../../../usr/include/asm/types.h:1,
>                   from ../../../../tools/include/linux/bitops.h:5,
>                   from ../../../../tools/include/linux/bitmap.h:8:
> ../../../../usr/include/asm/bitsperlong.h:20:9: warning: "__BITS_PER_LONG" redefined
>     20 | #define __BITS_PER_LONG 64
>        |         ^~~~~~~~~~~~~~~
> In file included from ../../../../tools/include/asm-generic/bitsperlong.h:5:
> ../../../../tools/include/uapi/asm-generic/bitsperlong.h:12:9: note: this is the location of the previous definition
>     12 | #define __BITS_PER_LONG 32
>        |         ^~~~~~~~~~~~~~~

Yes this also affects building "perf".
-- 
Florian