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    SubjectKVM build warnings
    I get the following

    In file included from arch/x86/kvm/mmu.c:2856:
    arch/x86/kvm/paging_tmpl.h: In function ‘paging32_walk_addr_generic’:
    arch/x86/kvm/paging_tmpl.h:124: warning: ‘ptep_user’ may be used uninitialized in this function
    In file included from arch/x86/kvm/mmu.c:2852:
    arch/x86/kvm/paging_tmpl.h: In function ‘paging64_walk_addr_generic’:
    arch/x86/kvm/paging_tmpl.h:124: warning: ‘ptep_user’ may be used uninitialized in this function

    when building -rc1. It looks like it is caused by
    6e2ca7d1802bf8ed9908435e34daa116662e7790 and sticking uninitialized_var() around
    the ptep_user declaration looks like the easiest solution. But the code should
    still be audited by someone who's familiar with it whether shutting up the
    compiler doesn't cause an actual bug.

    Thanks.

    --
    Regards/Gruss,
    Boris.
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