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Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm

From Linus Torvalds <torvalds@linux-foundation.org>
Newsgroups linux.debian.kernel, linux.kernel
Subject Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm
Date 2016-12-02 18:30 +0100
Message-ID <sJZON-6LQ-9@gated-at.bofh.it> (permalink)
References <sIQud-v5-3@gated-at.bofh.it> <sJA42-4xo-47@gated-at.bofh.it> <sJEhk-8aj-33@gated-at.bofh.it> <sJTJo-2Mb-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

Cross-posted to 2 groups.

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On Fri, Dec 2, 2016 at 2:55 AM, Arnd Bergmann <arnd@arndb.de> wrote:
>
> Yes, it's always been just the assembly symbols that broke, these were
> the ones that Al's original patch changed and that ended up with
> no version information.

Ok, and the reason is because even if we have a weak symbol from C, it
would always have a value.

Good to know what the heck the problem was.

> I have managed to bisect the link failure to a specific binutils
> commit by Alan Modra now:

Thanks. And I committed your "set to zero" patch, so we can hopefully
leave this all behind us.

I marked it for stable (not because older kernels need it, but because
it's the right thing to do and if we ever backport anything that
causes this we don't want to forget this).

And I'll keep the workaround in kernel/module.c just because it's
really late in the rc series, and I'd rather have both belt and
suspenders for this all right now.

               Linus

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Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Ben Hutchings <ben@decadent.org.uk> - 2016-11-29 02:20 +0100
  Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-11-29 03:40 +0100
    Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-11-29 10:20 +0100
  Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 05:10 +0100
    Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Adam Borowski <kilobyte@angband.pl> - 2016-11-29 14:20 +0100
      Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Ingo Molnar <mingo@kernel.org> - 2016-11-29 14:40 +0100
        Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Adam Borowski <kilobyte@angband.pl> - 2016-11-29 15:30 +0100
      [PATCH] x86/kbuild: enable modversions for symbols exported from asm Adam Borowski <kilobyte@angband.pl> - 2016-11-29 15:00 +0100
        Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 16:50 +0100
          Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-11-29 17:20 +0100
            Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 17:40 +0100
              Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Ben Hutchings <ben@decadent.org.uk> - 2016-11-29 21:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 22:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-30 20:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Ben Hutchings <ben@decadent.org.uk> - 2016-11-30 22:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-01 03:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Ben Hutchings <ben@decadent.org.uk> - 2016-12-01 03:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-01 05:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-12-01 17:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Hannes Frederic Sowa <hannes@stressinduktion.org> - 2016-12-02 16:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-09 05:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Ian Campbell <ijc@hellion.org.uk> - 2016-12-09 16:30 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-09 17:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-12-10 14:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-12 05:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Ian Campbell <ijc@hellion.org.uk> - 2016-12-12 10:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Don Zickus <dzickus@redhat.com> - 2016-12-14 19:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Stanislav Kozina <skozina@redhat.com> - 2016-12-13 02:30 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-12-14 00:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Dodji Seketeli <dodji@seketeli.org> - 2016-12-14 10:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-12-14 10:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-12-14 11:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Dodji Seketeli <dodji@seketeli.org> - 2016-12-14 11:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-12-14 11:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Dodji Seketeli <dodji@seketeli.org> - 2016-12-14 11:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-12-14 11:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Dodji Seketeli <dodji@seketeli.org> - 2016-12-14 11:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Don Zickus <dzickus@redhat.com> - 2016-12-01 05:50 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-01 05:50 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Don Zickus <dzickus@redhat.com> - 2016-12-01 16:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Don Zickus <dzickus@redhat.com> - 2016-12-01 17:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-12-01 17:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Don Zickus <dzickus@redhat.com> - 2016-12-01 20:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Christoph Hellwig <hch@infradead.org> - 2016-12-01 17:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-09 05:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Stanislav Kozina <skozina@redhat.com> - 2016-12-09 09:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-09 09:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Stanislav Kozina <skozina@redhat.com> - 2016-12-09 16:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-09 17:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-12-09 17:30 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Stanislav Kozina <skozina@redhat.com> - 2016-12-12 11:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-13 08:50 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Hannes Frederic Sowa <hannes@redhat.com> - 2016-12-14 15:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-15 03:30 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Hannes Frederic Sowa <hannes@redhat.com> - 2016-12-15 12:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-15 13:30 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Hannes Frederic Sowa <hannes@redhat.com> - 2016-12-15 14:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-15 15:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Hannes Frederic Sowa <hannes@redhat.com> - 2016-12-15 16:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Stanislav Kozina <skozina@redhat.com> - 2016-12-15 15:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Don Zickus <dzickus@redhat.com> - 2016-12-09 17:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Stanislav Kozina <skozina@redhat.com> - 2016-12-01 12:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-01 12:30 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Stanislav Kozina <skozina@redhat.com> - 2016-12-01 13:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-01 14:00 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Dodji Seketeli <dodji@seketeli.org> - 2016-12-01 16:50 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-12-01 17:40 +0100
          Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Adam Borowski <kilobyte@angband.pl> - 2016-11-29 18:10 +0100
            Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 18:30 +0100
              Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 18:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Arnd Bergmann <arnd@arndb.de> - 2016-12-01 15:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-12-01 17:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-12-01 19:50 +0100
                Re: [RFC, PATCH, v3.9] default exported asm symbols to zero Geert Uytterhoeven <geert@linux-m68k.org> - 2016-12-02 14:00 +0100
                Re: [RFC, PATCH, v3.9] default exported asm symbols to zero Arnd Bergmann <arnd@arndb.de> - 2016-12-02 16:10 +0100
                Re: [RFC, PATCH, v3.9] default exported asm symbols to zero Adam Borowski <kilobyte@angband.pl> - 2016-12-02 16:40 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-12-02 18:30 +0100
                Re: [RFC, PATCH, v3.9] default exported asm symbols to zero Ben Hutchings <ben@decadent.org.uk> - 2016-12-03 05:40 +0100
                Re: [RFC, PATCH, v3.9] default exported asm symbols to zero Arnd Bergmann <arnd@arndb.de> - 2016-12-03 12:10 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Alan Modra <amodra@gmail.com> - 2016-12-04 09:20 +0100
                Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-12-04 22:10 +0100
              Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Michal Marek <mmarek@suse.com> - 2016-11-29 22:50 +0100
        Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Ben Hutchings <ben@decadent.org.uk> - 2016-12-02 03:10 +0100
          Re: [PATCH] x86/kbuild: enable modversions for symbols exported from  asm Adam Borowski <kilobyte@angband.pl> - 2016-12-02 12:30 +0100
            Re: [PATCH] x86/kbuild: enable modversions for symbols exported  from asm Ben Hutchings <ben@decadent.org.uk> - 2016-12-02 16:10 +0100

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