• Denys Vlasenko's avatar
    x86/apic: Get rid of apic_version[] array · cff9ab2b
    Denys Vlasenko authored
    The array has a size of MAX_LOCAL_APIC, which can be as large as 32k, so it
    can consume up to 128k.
    
    The array has been there forever and was never used for anything useful
    other than a version mismatch check which was introduced in 2009.
    
    There is no reason to store the version in an array. The kernel is not
    prepared to handle different APIC versions anyway, so the real important
    part is to detect a version mismatch and warn about it, which can be done
    with a single variable as well.
    
    [ tglx: Massaged changelog ]
    Signed-off-by: default avatarDenys Vlasenko <dvlasenk@redhat.com>
    CC: Andy Lutomirski <luto@amacapital.net>
    CC: Borislav Petkov <bp@alien8.de>
    CC: Brian Gerst <brgerst@gmail.com>
    CC: Mike Travis <travis@sgi.com>
    Link: http://lkml.kernel.org/r/20160913181232.30815-1-dvlasenk@redhat.comSigned-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
    cff9ab2b
apic.c 63.6 KB