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    powerpc: Move Power Macintosh drivers to generic byteswappers · f5718726
    David Gibson 提交于
    ppc has special instruction forms to efficiently load and store values
    in non-native endianness.  These can be accessed via the arch-specific
    {ld,st}_le{16,32}() inlines in arch/powerpc/include/asm/swab.h.
    
    However, gcc is perfectly capable of generating the byte-reversing
    load/store instructions when using the normal, generic cpu_to_le*() and
    le*_to_cpu() functions eaning the arch-specific functions don't have much
    point.
    
    Worse the "le" in the names of the arch specific functions is now
    misleading, because they always generate byte-reversing forms, but some
    ppc machines can now run a little-endian kernel.
    
    To start getting rid of the arch-specific forms, this patch removes them
    from all the old Power Macintosh drivers, replacing them with the
    generic byteswappers.
    Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>
    Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
    f5718726
pata_macio.c 39.9 KB