linux-kernel - [PATCH] x86/paravirt: revert exports to restore old behaviour

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <473A073C.2020201@goop.org>
Date:	Tue, 13 Nov 2007 12:21:16 -0800
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Tobias Powalowski <t.powa@....de>
CC:	linux-kernel@...r.kernel.org, Zachary Amsden <zach@...are.com>,
	Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH] x86/paravirt: revert exports to restore old behaviour

Subject: x86/paravirt: revert exports to restore old behaviour

Subdividing the paravirt_ops structure caused a regression in certain
non-GPL modules which try to use mmu_ops and cpu_ops.  This restores
the old behaviour, and makes it consistent with the
non-CONFIG_PARAVIRT case.

Tobias's mail:
> commit to .24 tree:
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=93b1eab3d29e7ea32ee583de3362da84db06ded8
> 
> introduces:
> +EXPORT_SYMBOL_GPL(pv_mmu_ops);
> +EXPORT_SYMBOL_GPL(pv_cpu_ops);
> 
> pv_cpu_ops is for nvidia
> pv_mmu_ops' is for amd(ati)
> 
> which will break 32bit systems with paravirt enabled and trying to compile
> the binary graphic drivers from amd(ati) and nvidia.

[ Tobias: It would be nice to know exactly which operations the
  modules you're trying to compile are using. ]

Signed-off-by: Jeremy Fitzhardinge <Jeremy.Fitzhardinge@...rix.com>
Cc: Tobias Powalowski <t.powa@....de>
Cc: Zach Amsden <zach@...are.com>

---
 arch/x86/kernel/paravirt.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

===================================================================
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -440,8 +440,8 @@ struct pv_mmu_ops pv_mmu_ops = {
 };
 
 EXPORT_SYMBOL_GPL(pv_time_ops);
-EXPORT_SYMBOL_GPL(pv_cpu_ops);
-EXPORT_SYMBOL_GPL(pv_mmu_ops);
+EXPORT_SYMBOL    (pv_cpu_ops);
+EXPORT_SYMBOL    (pv_mmu_ops);
 EXPORT_SYMBOL_GPL(pv_apic_ops);
 EXPORT_SYMBOL_GPL(pv_info);
 EXPORT_SYMBOL    (pv_irq_ops);

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/