Re: [PATCH net] lib: packing: fix shift wrapping in bit_reverse()

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Hi Vladimir,

> The problem I see with bitrev8 is that the byte_rev_table[] can
> seemingly be built as a module (the BITREVERSE Kconfig knob is tristate,
> and btw your patch doesn't make PACKING select BITREVERSE). But PACKING
> is bool. IIRC, I got comments during review that it's not worth making
> packing a module, but I may remember wrong.

Do you really think it's a problem? I personally would just select
BITREVERSE with/without making PACKING tristate. BITREVERSE is already
selected by CRC32 which defaults to y, so just adding a select isn't a
change in the default. Can't think of a practical point in avoiding
linking against 256 bytes here.

In any case, it just doesn't look right to have multiple bit-reverse
implementations only because of Kconfig relations.



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