Re: [PATCH 6.1 0000/1887] 6.1.191-rc1 review

[Florian Fainelli]

On 10/28/26 14:12, Florian Fainelli wrote:
> On 10/28/26 09:34, Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 6.1.191 release.
> > There are 1887 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 Fri, 30 Oct 2026 17:02:34 +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/v6.x/stable-review/ 
> > patch-6.1.191-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-6.1.y
> > and the diffstat can be found below.
> >
> > thanks,
> >
> > greg k-h
>
> The ARM 32-bit kernel fails to build with:
>
> In file included from arch/arm/probes/uprobes/core.c:9:
> ./include/linux/highmem.h: In function 'memcpy_from_folio':
> ./include/linux/highmem.h:427:21: error: implicit declaration of 
> function 'folio_test_highmem'; did you mean 'folio_test_hugetlb'? [- 
> Werror=implicit-function-declaration]
>    427 |                 if (folio_test_highmem(folio) &&
>        |                     ^~~~~~~~~~~~~~~~~~
>        |                     folio_test_hugetlb
> cc1: some warnings being treated as errors
> host-make[6]: *** [scripts/Makefile.build:250: arch/arm/probes/uprobes/ 
> core.o] Error 1
> host-make[5]: *** [scripts/Makefile.build:503: arch/arm/probes/uprobes] 
> Error 2
> host-make[5]: *** Waiting for unfinished jobs....
>    AS      arch/arm/lib/csumpartial.o
>    CC      lib/math/lcm.o
>    CC      drivers/video/console/dummycon.o
>    CC      sound/core/control.o
> host-make[4]: *** [scripts/Makefile.build:503: arch/arm/probes] Error 2
> host-make[4]: *** Waiting for unfinished jobs...
>
> this is due to 341d4e6294d9 ("highmem: add memcpy_to_folio() and 
> memcpy_from_folio()"). We would need to also back port 00cdf76012ab 
> ("("mm: add memcpy_from_file_folio()")

And there is this other build failure caused by 997f9c35fcad 
("Bluetooth: MGMT: fix crash in set_mesh_sync and set_mesh_complete")

net/bluetooth/mgmt.c: In function 'set_mesh_sync':
net/bluetooth/mgmt.c:2188:36: error: implicit declaration of function 
'__struct_size'; did you mean 'struct_size'? 
[-Werror=implicit-function-declaration]
 2188 |         memcpy(cp, cmd->param, min(__struct_size(cp), len));
      |                                    ^~~~~~~~~~~~~
./include/linux/minmax.h:92:27: note: in definition of macro 
'__careful_cmp_once'
   92 |         __auto_type ux = (x); __auto_type uy = (y);     \
      |                           ^
./include/linux/minmax.h:105:25: note: in expansion of macro '__careful_cmp'
  105 | #define min(x, y)       __careful_cmp(min, x, y)
      |                         ^~~~~~~~~~~~~
net/bluetooth/mgmt.c:2188:32: note: in expansion of macro 'min'
 2188 |         memcpy(cp, cmd->param, min(__struct_size(cp), len));
      |                                ^~~
In file included from <command-line>:
././include/linux/compiler_types.h:387:45: error: call to 
'__compiletime_assert_741' declared with attribute error: 
min(__struct_size(cp), len) signedness error
  387 |         _compiletime_assert(condition, msg, 
__compiletime_assert_, __COUNTER__)
      |                                             ^
././include/linux/compiler_types.h:368:25: note: in definition of macro 
'__compiletime_assert'
  368 |                         prefix ## suffix(); 
        \
      |                         ^~~~~~
././include/linux/compiler_types.h:387:9: note: in expansion of macro 
'_compiletime_assert'
  387 |         _compiletime_assert(condition, msg, 
__compiletime_assert_, __COUNTER__)
      |         ^~~~~~~~~~~~~~~~~~~
./include/linux/build_bug.h:39:37: note: in expansion of macro 
'compiletime_assert'
   39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), 
msg)
      |                                     ^~~~~~~~~~~~~~~~~~
./include/linux/minmax.h:93:9: note: in expansion of macro 
'BUILD_BUG_ON_MSG'
   93 |         BUILD_BUG_ON_MSG(!__types_ok(ux, uy),           \
      |         ^~~~~~~~~~~~~~~~
./include/linux/minmax.h:98:9: note: in expansion of macro 
'__careful_cmp_once'
   98 |         __careful_cmp_once(op, x, y, __UNIQUE_ID(x_), 
__UNIQUE_ID(y_))
      |         ^~~~~~~~~~~~~~~~~~
./include/linux/minmax.h:105:25: note: in expansion of macro '__careful_cmp'
  105 | #define min(x, y)       __careful_cmp(min, x, y)
      |                         ^~~~~~~~~~~~~
net/bluetooth/mgmt.c:2188:32: note: in expansion of macro 'min'
 2188 |         memcpy(cp, cmd->param, min(__struct_size(cp), len));
      |                                ^~~
cc1: some warnings being treated as errors


We would need to back port 26dd68d293fd but this does not apply cleanly.
--
Florian