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    SubjectRe: [PATCH v2 09/76] ARC: Checksum/byteorder/swab routines
    On Friday 18 January 2013 07:51 PM, Arnd Bergmann wrote:
    > On Friday 18 January 2013, Vineet Gupta wrote:
    >> TBD: do_csum still needs to be written in asm
    > Do you actually expect a lot of improvement in do_csum?
    > I would hope that gcc can actually generate a pretty
    > good version of it, unless you have some 64-bit add-with-carry
    > instruction or something else that you could make use of.

    We do have 32bit add-with-carry and it has it's own set of micro-architectural
    hazards and stalls which deserve careful insn scheduling. So yes the mileage would
    vary but certainly deserves a try.

    >
    >> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
    > Acked-by: Arnd Bergmann <arnd@arndb.de>

    Thanks,
    -Vineet



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