[PATCH v3 0/1] asm prototypes for modversions on x86

From	Adam Borowski <kilobyte@angband.pl>
Newsgroups	linux.kernel
Subject	[PATCH v3 0/1] asm prototypes for modversions on x86
Date	2016-12-11 02:00 +0100
Message-ID	<sN0EG-K2-1@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Hi!
After Linus' revert of Arnd's modversions patch, it looks like we're back to
wanting asm-prototypes.h at least in the short term.  Things are much better
than before -- instead of failing to load modules there's just a scary
warning, but I still believe that no scary warning is better :)

Users will be stressed, waste their time looking for answer, etc -- and the
short-term fix is quite well researched and tested.  It's for x86 only, but
with arm ppc arm64 already dealt with, that handles about 99.9% of machines.

So I think it'd be good if you could apply this -- ideally for 4.9, if not
then at least 4.10.

There _is_ a modification since the last posted version: Ben Hutchings
pointed out that I missed one 486-only symbol.  Not surprising no one found
this during testing...

The diff from v2 is:
+#ifndef CONFIG_X86_CMPXCHG64
+extern void cmpxchg8b_emu(void);
+#endif

Note that this is already carried by Debian (Ben Hutchings' tree), so a
mainline fix for 4.9 would matter only for other distributions, not sure
which if any want to release with 4.9.


Meow!
-- 
u-boot problems can be solved with the help of your old SCSI manuals, the
parts that deal with goat termination.  You need a black-handled knife, and
an appropriate set of candles (number and color matters).  Or was it a
silver-handled knife?  Crap, need to look that up.

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[PATCH v3 0/1] asm prototypes for modversions on x86 Adam Borowski <kilobyte@angband.pl> - 2016-12-11 02:00 +0100
  [PATCH v3 1/1] x86/kbuild: enable modversions for symbols exported from asm Adam Borowski <kilobyte@angband.pl> - 2016-12-11 02:10 +0100
    Re: [PATCH v3 1/1] x86/kbuild: enable modversions for symbols  exported from asm Michal Marek <mmarek@suse.com> - 2016-12-14 00:50 +0100

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