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SubjectRe: [PATCH 1/2] kbuild: provide include/asm/asm-prototypes.h for ARM
On Mon, 24 Oct 2016 17:05:26 +0200
Arnd Bergmann <> wrote:

> This adds an asm/asm-prototypes.h header for ARM to fix the
> broken symbol versioning for symbols exported from assembler
> files.
> In addition to the header, we have to do these other small
> changes:
> - move the exports from bitops.h to {change,clear,set,...}bit.S
> - move the exports from csumpartialgeneric.S into the files
> including it
> I couldn't find the correct prototypes for the compiler builtins,
> so I went with the fake 'void f(void)' prototypes that we had
> before.
> This leaves the mmioset/mmiocpy function for now, as it's not
> obvious how to best handle them.

This looks nicer. I like variant B because it keeps the GENKSYMS cruft to
a single location, but either one isn't too bad.

I'd like to get moving on this, so let's at least get the generic kbuild
change merged. In the end, the kbuild code does not prevent a maintainer
from putting their EXPORT_SYMBOL in whatever location they like, so there
is no reason not to merge it (certainly there will be archs that do use

Michal, what's your thoughts? If you merge my patch 2/2 and skip 1/2, it
should not give any new build warnings or errors, so then arch patches can
go via arch trees. 1/2 could go in after everyone is up to date.


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