"u32" versus "__u32"

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  i want to make sure i understand the issue regarding data types.  as
i understand it, it's recommended to use types like "__u32" instead of
just "u32", but that's really true only for stuff that will get
exported to user space, right?

  in short, it's only an issue in header files that are populated via
running "make headers_install"?  is that correct?

rday

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Robert P. J. Day
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