Re: [PATCH 5.10 000/193] 5.10.202-rc1 review

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Hello!

On 24/11/23 11:52 a. m., Greg Kroah-Hartman wrote:
This is the start of the stable review cycle for the 5.10.202 release.
There are 193 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 Sun, 26 Nov 2023 17:19:17 +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-5.10.202-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-5.10.y
and the diffstat can be found below.

thanks,

greg k-h

System/390 fails here too:

-----8<-----
  In function 'setup_lowcore_dat_off',
      inlined from 'setup_arch' at /builds/linux/arch/s390/kernel/setup.c:1165:2:
  /builds/linux/arch/s390/kernel/setup.c:410:9: warning: 'memcpy' reading 128 bytes from a region of size 0 [-Wstringop-overread]
    410 |         memcpy(lc->stfle_fac_list, S390_lowcore.stfle_fac_list,
        |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    411 |                sizeof(lc->stfle_fac_list));
        |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /builds/linux/arch/s390/kernel/setup.c:412:9: warning: 'memcpy' reading 128 bytes from a region of size 0 [-Wstringop-overread]
    412 |         memcpy(lc->alt_stfle_fac_list, S390_lowcore.alt_stfle_fac_list,
        |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    413 |                sizeof(lc->alt_stfle_fac_list));
        |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /builds/linux/arch/s390/mm/page-states.c: In function 'mark_kernel_pgd':
  /builds/linux/arch/s390/mm/page-states.c:175:45: error: request for member 'val' in something not a structure or union
    175 |         max_addr = (S390_lowcore.kernel_asce.val & _ASCE_TYPE_MASK) >> 2;
        |                                             ^
  In file included from /builds/linux/arch/s390/include/asm/page.h:186,
                   from /builds/linux/arch/s390/include/asm/thread_info.h:26,
                   from /builds/linux/include/linux/thread_info.h:39,
                   from /builds/linux/arch/s390/include/asm/preempt.h:6,
                   from /builds/linux/include/linux/preempt.h:78,
                   from /builds/linux/include/linux/spinlock.h:51,
                   from /builds/linux/include/linux/mmzone.h:8,
                   from /builds/linux/include/linux/gfp.h:6,
                   from /builds/linux/include/linux/mm.h:10,
                   from /builds/linux/arch/s390/mm/page-states.c:13:
  /builds/linux/arch/s390/mm/page-states.c: In function 'cmma_init_nodat':
  /builds/linux/arch/s390/mm/page-states.c:204:30: error: 'invalid_pg_dir' undeclared (first use in this function)
    204 |         page = virt_to_page(&invalid_pg_dir);
        |                              ^~~~~~~~~~~~~~
  /builds/linux/include/asm-generic/memory_model.h:54:45: note: in definition of macro '__pfn_to_page'
     54 | #define __pfn_to_page(pfn)      (vmemmap + (pfn))
        |                                             ^~~
  /builds/linux/arch/s390/include/asm/page.h:176:34: note: in expansion of macro 'phys_to_pfn'
    176 | #define virt_to_pfn(kaddr)      (phys_to_pfn(__pa(kaddr)))
        |                                  ^~~~~~~~~~~
  /builds/linux/arch/s390/include/asm/page.h:176:46: note: in expansion of macro '__pa'
    176 | #define virt_to_pfn(kaddr)      (phys_to_pfn(__pa(kaddr)))
        |                                              ^~~~
  /builds/linux/arch/s390/include/asm/page.h:179:45: note: in expansion of macro 'virt_to_pfn'
    179 | #define virt_to_page(kaddr)     pfn_to_page(virt_to_pfn(kaddr))
        |                                             ^~~~~~~~~~~
  /builds/linux/arch/s390/mm/page-states.c:204:16: note: in expansion of macro 'virt_to_page'
    204 |         page = virt_to_page(&invalid_pg_dir);
        |                ^~~~~~~~~~~~
  /builds/linux/arch/s390/mm/page-states.c:204:30: note: each undeclared identifier is reported only once for each function it appears in
    204 |         page = virt_to_page(&invalid_pg_dir);
        |                              ^~~~~~~~~~~~~~
  /builds/linux/include/asm-generic/memory_model.h:54:45: note: in definition of macro '__pfn_to_page'
     54 | #define __pfn_to_page(pfn)      (vmemmap + (pfn))
        |                                             ^~~
  /builds/linux/arch/s390/include/asm/page.h:176:34: note: in expansion of macro 'phys_to_pfn'
    176 | #define virt_to_pfn(kaddr)      (phys_to_pfn(__pa(kaddr)))
        |                                  ^~~~~~~~~~~
  /builds/linux/arch/s390/include/asm/page.h:176:46: note: in expansion of macro '__pa'
    176 | #define virt_to_pfn(kaddr)      (phys_to_pfn(__pa(kaddr)))
        |                                              ^~~~
  /builds/linux/arch/s390/include/asm/page.h:179:45: note: in expansion of macro 'virt_to_pfn'
    179 | #define virt_to_page(kaddr)     pfn_to_page(virt_to_pfn(kaddr))
        |                                             ^~~~~~~~~~~
  /builds/linux/arch/s390/mm/page-states.c:204:16: note: in expansion of macro 'virt_to_page'
    204 |         page = virt_to_page(&invalid_pg_dir);
        |                ^~~~~~~~~~~~
  make[3]: *** [/builds/linux/scripts/Makefile.build:286: arch/s390/mm/page-states.o] Error 1
  make[3]: Target '__build' not remade because of errors.
  make[2]: *** [/builds/linux/scripts/Makefile.build:503: arch/s390/mm] Error 2
  In file included from /builds/linux/arch/s390/kernel/lgr.c:13:
  In function '__stfle',
      inlined from 'stfle' at /builds/linux/arch/s390/include/asm/facility.h:99:2,
      inlined from 'lgr_info_get' at /builds/linux/arch/s390/kernel/lgr.c:122:2:
  /builds/linux/arch/s390/include/asm/facility.h:87:9: warning: 'memcpy' reading 4 bytes from a region of size 0 [-Wstringop-overread]
     87 |         memcpy(stfle_fac_list, &S390_lowcore.stfl_fac_list, 4);
        |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  In function 'pcpu_prepare_secondary',
      inlined from '__cpu_up' at /builds/linux/arch/s390/kernel/smp.c:911:2:
  /builds/linux/arch/s390/kernel/smp.c:277:9: warning: 'memcpy' reading 128 bytes from a region of size 0 [-Wstringop-overread]
    277 |         memcpy(lc->stfle_fac_list, S390_lowcore.stfle_fac_list,
        |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    278 |                sizeof(lc->stfle_fac_list));
        |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~
  /builds/linux/arch/s390/kernel/smp.c:279:9: warning: 'memcpy' reading 128 bytes from a region of size 0 [-Wstringop-overread]
    279 |         memcpy(lc->alt_stfle_fac_list, S390_lowcore.alt_stfle_fac_list,
        |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    280 |                sizeof(lc->alt_stfle_fac_list));
        |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  make[2]: Target '__build' not remade because of errors.
----->8-----

That was allnoconfig with GCC 12. Bisection pointed to:

  commit 2e530ad14d778a089d8ec190a7e2a70421a8a71a
  Author: Heiko Carstens <hca@xxxxxxxxxxxxx>
  Date:   Tue Oct 17 21:07:03 2023 +0200

      s390/cmma: fix initial kernel address space page table walk
commit 16ba44826a04834d3eeeda4b731c2ea3481062b7 upstream.


Then there's also a PowerPC failure on allmodconfig:

-----8<-----
  /builds/linux/arch/powerpc/platforms/powernv/opal-prd.c:30:17: error: expected specifier-qualifier-list before 'DECLARE_FLEX_ARRAY'
     30 |                 DECLARE_FLEX_ARRAY(u8, data);
        |                 ^~~~~~~~~~~~~~~~~~
  /builds/linux/arch/powerpc/platforms/powernv/opal-prd.c: In function 'opal_prd_msg_notifier':
  /builds/linux/arch/powerpc/platforms/powernv/opal-prd.c:365:26: error: 'struct opal_prd_msg' has no member named 'data'
    365 |         memcpy(&item->msg.data, msg->params, msg_size);
        |                          ^
  make[4]: *** [/builds/linux/scripts/Makefile.build:286: arch/powerpc/platforms/powernv/opal-prd.o] Error 1
----->8-----

I didn't bisect this one but would suspect this commit:

  commit 2342ac1ed7704304605e29e337ce073f00f75d1e
  Author: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
  Date:   Tue Aug 22 00:28:19 2023 +1000

      powerpc/powernv: Fix fortify source warnings in opal-prd.c
commit feea65a338e52297b68ceb688eaf0ffc50310a83 upstream.


Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>

Greetings!

Daniel Díaz
daniel.diaz@xxxxxxxxxx





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