linux-kernel - Re: [PATCH 5.15 000/479] 5.15.165-rc3 review

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Message-ID: <1c83d94d-1b56-4bd9-8a96-c5062c238c06@sirena.org.uk>
Date: Tue, 20 Aug 2024 15:43:44 +0100
From: Mark Brown <broonie@...nel.org>
To: 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, f.fainelli@...il.com,
	sudipm.mukherjee@...il.com, srw@...dewatkins.net, rwarsow@....de,
	conor@...nel.org, allen.lkml@...il.com
Subject: Re: [PATCH 5.15 000/479] 5.15.165-rc3 review

On Sat, Aug 17, 2024 at 10:00:38AM +0200, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.15.165 release.
> There are 479 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.

This breaks the build of at least the KVM selftests on arm64 for me:

In file included from dirty_log_test.c:15:
../../../../tools/include/linux/bitmap.h: In function ‘bitmap_zero’:
../../../../tools/include/linux/bitmap.h:33:34: warning: implicit declaration of
 function ‘ALIGN’ [-Wimplicit-function-declaration]
   33 | #define bitmap_size(nbits)      (ALIGN(nbits, BITS_PER_LONG) / BITS_PER_
BYTE)
      |                                  ^~~~~
../../../../tools/include/linux/bitmap.h:40:32: note: in expansion of macro ‘bit
map_size’
   40 |                 memset(dst, 0, bitmap_size(nbits));
      |                                ^~~~~~~~~~~
/usr/bin/ld: /tmp/cc4JPVlx.o: in function `bitmap_alloc':
/build/stage/linux/tools/testing/selftests/kvm/../../../../tools/include/linux/b
itmap.h:126: undefined reference to `ALIGN'
/usr/bin/ld: /build/stage/linux/tools/testing/selftests/kvm/../../../../tools/in
clude/linux/bitmap.h:126: undefined reference to `ALIGN'
collect2: error: ld returned 1 exit status

This bisects down to:

9853a5bed65d507048dbe772bb84e6f905b772a3 is the first bad commit
commit 9853a5bed65d507048dbe772bb84e6f905b772a3
Author: Alexander Lobakin <aleksander.lobakin@...el.com>
Date:   Wed Mar 27 16:23:49 2024 +0100

    bitmap: introduce generic optimized bitmap_size()
    
    commit a37fbe666c016fd89e4460d0ebfcea05baba46dc upstream.

A similar issue appears to affect at least the 5.10 -rc.

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