Re: [PATCH 5.15 000/484] 5.15.165-rc1 review

[Greg Kroah-Hartman]

On Fri, Aug 16, 2024 at 10:52:35AM +0200, Anders Roxell wrote:
> On Thu, 15 Aug 2024 at 15:40, Greg Kroah-Hartman
> <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> >
> > This is the start of the stable review cycle for the 5.15.165 release.
> > There are 484 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 Sat, 17 Aug 2024 13:18:17 +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-5.15.165-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-5.15.y
> > and the diffstat can be found below.
> >
> > thanks,
> >
> > greg k-h
> 
> The following S390 build failed on stable-rc 5.15.y with gcc-12 and clang due
> to following warnings and errors [1].
> 
> s390:
>   build:
>     * gcc-8-defconfig-fe40093d
>     * gcc-12-defconfig
>     * clang-18-defconfig
> 
> 
> Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
> 
> Bisect point to 85cf9455e504 ("KVM: s390: pv: avoid stalls when making
> pages secure")
> as the problematic commit [ Upstream commit
> f0a1a0615a6ff6d38af2c65a522698fb4bb85df6 ].
> 
> Build log:
> ------
> arch/s390/kernel/uv.c: In function 'expected_folio_refs':
> arch/s390/kernel/uv.c:184:15: error: implicit declaration of function
> 'folio_mapcount'; did you mean 'total_mapcount'?
> [-Werror=implicit-function-declaration]
>   184 |         res = folio_mapcount(folio);
>       |               ^~~~~~~~~~~~~~
>       |               total_mapcount
> arch/s390/kernel/uv.c:185:13: error: implicit declaration of function
> 'folio_test_swapcache' [-Werror=implicit-function-declaration]
>   185 |         if (folio_test_swapcache(folio)) {
>       |             ^~~~~~~~~~~~~~~~~~~~
> arch/s390/kernel/uv.c:187:20: error: implicit declaration of function
> 'folio_mapping'; did you mean 'no_idmapping'?
> [-Werror=implicit-function-declaration]
>   187 |         } else if (folio_mapping(folio)) {
>       |                    ^~~~~~~~~~~~~
>       |                    no_idmapping
> arch/s390/kernel/uv.c:189:26: error: invalid use of undefined type
> 'struct folio'
>   189 |                 if (folio->private)
>       |                          ^~
> 

Oops, no folio support in 5.10.y or 5.15.y, I'll go drop these patches
and push out -rc2 releases, thanks for the report!

greg k-h