Re: [PATCH v8 1/8] linux-headers: update to 6.0-rc3

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On Mon, 26 Sept 2022 at 13:53, Thomas Huth <thuth@xxxxxxxxxx> wrote:
>
> On 02/09/2022 19.27, Matthew Rosato wrote:
> > Signed-off-by: Matthew Rosato <mjrosato@xxxxxxxxxxxxx>
> > ---
> ...
> > diff --git a/linux-headers/asm-x86/kvm.h b/linux-headers/asm-x86/kvm.h
> > index bf6e96011d..46de10a809 100644
> > --- a/linux-headers/asm-x86/kvm.h
> > +++ b/linux-headers/asm-x86/kvm.h
> > @@ -198,13 +198,13 @@ struct kvm_msrs {
> >       __u32 nmsrs; /* number of msrs in entries */
> >       __u32 pad;
> >
> > -     struct kvm_msr_entry entries[0];
> > +     struct kvm_msr_entry entries[];
> >   };
>
> Yuck, this fails to compile with Clang:
>
>   https://gitlab.com/thuth/qemu/-/jobs/3084427423#L2206
>
>   ../target/i386/kvm/kvm.c:470:25: error: field 'info' with variable sized
> type 'struct kvm_msrs' not at the end of a struct or class is a GNU
> extension [-Werror,-Wgnu-variable-sized-type-not-at-end]
>          struct kvm_msrs info;
>                          ^
>
> Anybody any ideas how to fix this best? Simply disable the compiler warning
> in QEMU?

There's already a patchset on list that does that:
https://patchew.org/QEMU/20220915091035.3897-1-chenyi.qiang@xxxxxxxxx/

thanks
-- PMM



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