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    SubjectRe: [PATCH 06/10] x86: reduce memory and stack usage in intel_cacheinfo
    Mike Travis wrote:
    > Hmm, I hadn't thought of that. There is commonly a format spec called
    > %b for diags, etc. to print bit strings. Maybe something like:
    >
    > "... %*b ...", nr_cpu_ids, ptr_to_bitmap
    >
    > where the length arg is rounded up to 32 or 64 bits...?
    >

    I think that would need to be %.*b, but I always need to try it both
    ways anyway...

    But yes, that seems like the right way to go.

    >> Eh? What's the difference between snprintf and scnprintf?
    >>
    >
    > Good question... I'll have to ask the cpumask person. ;-)
    >

    It's in generic lib/vsprintf.c. The two functions are pretty much
    identical... Oh, I see; snprintf returns the total output size,
    regardless of whether it fits into the provided buffer, but scnprintf
    returns the actual output size, clipped by the buffer length.

    J


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