Re: Build error with kernel from 2026-08-21

[Juergen Gross <jgross@suse.com>]

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On 21.08.26 08:38, Juergen Gross wrote:
> Hi,
> 
> I'm seeing a build error with today's kernel (allyesconfig on x86, using gcc13):
> 
> make[3]: *** [/home/gross/linux/head/scripts/Makefile.build:550: drivers] Error 2
> make[1]: Leaving directory '/home/gross/linux/head/jg/build/x86_32-yes'
> make[2]: *** [/home/gross/linux/head/Makefile:2193: .] Error 2
> make[1]: *** [/home/gross/linux/head/Makefile:248: __sub-make] Error 2
> make: *** [Makefile:248: __sub-make] Error 2
> [msr]~/linux/head> mk x86_32-yes
> make O=jg/build/x86_32-yes CC=gcc-13 PYTHON3=python3.11
> make[1]: Entering directory '/home/gross/linux/head/jg/build/x86_32-yes'
>    CC      drivers/hid/hid-hyperv.o
> In file included from /home/gross/linux/head/include/linux/string.h:383,
>                   from /home/gross/linux/head/arch/x86/include/asm/page_32.h:18,
>                   from /home/gross/linux/head/arch/x86/include/asm/page.h:14,
>                   from /home/gross/linux/head/arch/x86/include/asm/processor.h:20,
>                   from /home/gross/linux/head/arch/x86/include/asm/timex.h:5,
>                   from /home/gross/linux/head/include/linux/timex.h:67,
>                   from /home/gross/linux/head/include/linux/time32.h:13,
>                   from /home/gross/linux/head/include/linux/time.h:60,
>                   from /home/gross/linux/head/include/linux/stat.h:19,
>                   from /home/gross/linux/head/include/linux/module.h:13,
>                   from /home/gross/linux/head/drivers/hid/hid-hyperv.c:8:
> In function ‘fortify_memset_chk’,
>      inlined from ‘mousevsc_device_info_valid_descriptor’ at /home/gross/linux/ 
> head/drivers/hid/hid-hyperv.c:691:2:
> /home/gross/linux/head/include/linux/fortify-string.h:430:25: error: call to 
> ‘__write_overflow_field’ declared with attribute warning: detected write beyond 
> size of field (1st parameter); maybe use struct_group()? [-Werror=attribute- 
> warning]
>    430 |                         __write_overflow_field(p_size_field, size);
>        |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> In function ‘fortify_memset_chk’,
>      inlined from ‘mousevsc_device_info_report_desc_oob’ at /home/gross/linux/ 
> head/drivers/hid/hid-hyperv.c:717:2:
> /home/gross/linux/head/include/linux/fortify-string.h:430:25: error: call to 
> ‘__write_overflow_field’ declared with attribute warning: detected write beyond 
> size of field (1st parameter); maybe use struct_group()? [-Werror=attribute- 
> warning]
>    430 |                         __write_overflow_field(p_size_field, size);
>        |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> cc1: all warnings being treated as errors
> make[5]: *** [/home/gross/linux/head/scripts/Makefile.build:290: drivers/hid/ 
> hid-hyperv.o] Error 1
> make[4]: *** [/home/gross/linux/head/scripts/Makefile.build:550: drivers/hid] 
> Error 2
> make[3]: *** [/home/gross/linux/head/scripts/Makefile.build:550: drivers] Error 2
> make[2]: *** [/home/gross/linux/head/Makefile:2193: .] Error 2
> make[1]: Leaving directory '/home/gross/linux/head/jg/build/x86_32-yes'
> make[1]: *** [/home/gross/linux/head/Makefile:248: __sub-make] Error 2
> make: *** [Makefile:248: __sub-make] Error 2

A git bisect flagged commit 83df7b5fa6735b5084ecd296a0f67208650ba497 to be the
problematic patch.


Juergen


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