On Sat, Oct 24, 2020 at 04:13:15PM +0900, Masami Hiramatsu wrote:
> Thanks, so will you split this into several patches, since I saw some
> cleanups in this patch?

Oh, most definitely. This was just a preview of where this is going...

> Yeah, that's good to me because in the most cases, user needs prefix,
> length or total decoded info.
> 
> BTW, it seems you returns 1 for errors, I rather like -EINVAL or -EILSEQ
> for errors so that user can also write
> 
>  if (insn_decode() < 0)
>    ...
> 
> I think "positive" and "zero" pair can easily mislead user to "true" and
> "false" trap.

Ok, sure, makes sense.

> Yeah, for the kprobes, if you see the insn_init() and insn_get_length()
> those can be replaced with one insn_decode().

Ok.

> Except for the return value, it looks good to me.

Thanks!

-- 
Regards/Gruss,
    Boris.

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