Re: [RESEND PATCH 1/1] bitops.h: move out get_count_order[_long]() from __KERNEL__ scope

From: Al Viro
Date: Wed Aug 17 2016 - 20:28:30 EST


On Thu, Aug 18, 2016 at 08:10:19AM +0800, zijun_hu wrote:

> Documentation/kbuild/makefiles.txtï
> The kernel includes a set of headers that is exported to userspace.
> Many headers can be exported as-is but other headers require a
> minimal pre-processing before they are ready for user-space.
> The pre-processing does:
> - drop kernel-specific annotations
> - drop include of compiler.h
> - drop all sections that are kernel internal (guarded by ifdef __KERNEL__)
>
> scripts/Makefile.headersinst:
> # ==========================================================================
> # Installing headers
> #
> # header-y - list files to be installed. They are preprocessed
> # to remove __KERNEL__ section of the file
> # genhdr-y - Same as header-y but in a generated/ directory

Quite. Now, could you show me where bitops.h is mentioned in any header-y
assignments?

Stuff outside of */uapi/* is not exported at all.