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    Subject[PATCH 12/13] Remove AT_VECTOR_SIZE_ARCH on x86
    Date
    It looks like there aren't actually users of this macro anywhere:

    * The kernel doesn't use it on x86 because we don't suppor ELF FDPIC.

    * The only Google results point to LMKL patches, both the one that
    wrote this (from 2010) and my patch to hide it behind __KERNEL__.

    * I grep'd through all the source tarballs on my machine, and the
    only packages that matched were the kernel and crui (which copied a
    PPC kernel header).

    Since I'm not sure how to actually provide the right answer (if I
    understand correctly, CONFIG_IA32_EMULATION is not __i386__), the only
    thing I can think of to do is to just remove the definition.

    Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
    Reviewed-by: Andrew Waterman <waterman@eecs.berkeley.edu>
    Reviewed-by: Albert Ou <aou@eecs.berkeley.edu>
    ---
    arch/x86/include/uapi/asm/auxvec.h | 7 -------
    1 file changed, 7 deletions(-)

    diff --git a/arch/x86/include/uapi/asm/auxvec.h b/arch/x86/include/uapi/asm/auxvec.h
    index 77203ac352de..1316b4c35425 100644
    --- a/arch/x86/include/uapi/asm/auxvec.h
    +++ b/arch/x86/include/uapi/asm/auxvec.h
    @@ -9,11 +9,4 @@
    #endif
    #define AT_SYSINFO_EHDR 33

    -/* entries in ARCH_DLINFO: */
    -#if defined(CONFIG_IA32_EMULATION) || !defined(CONFIG_X86_64)
    -# define AT_VECTOR_SIZE_ARCH 2
    -#else /* else it's non-compat x86-64 */
    -# define AT_VECTOR_SIZE_ARCH 1
    -#endif
    -
    #endif /* _ASM_X86_AUXVEC_H */
    --
    2.4.6


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