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23 October 2021, 00:29:24 UTC
Revision 13cbc0cd4a30c815984ad88e3a2e5976493516a3 authored by Andy Lutomirski on 03 July 2020, 17:02:56 UTC, committed by Thomas Gleixner on 04 July 2020, 17:47:26 UTC 
x86/entry/32: Fix #MC and #DB wiring on x86_32
 
DEFINE_IDTENTRY_MCE and DEFINE_IDTENTRY_DEBUG were wired up as non-RAW
on x86_32, but the code expected them to be RAW.

Get rid of all the macro indirection for them on 32-bit and just use
DECLARE_IDTENTRY_RAW and DEFINE_IDTENTRY_RAW directly.

Also add a warning to make sure that we only hit the _kernel paths
in kernel mode.

Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/9e90a7ee8e72fd757db6d92e1e5ff16339c1ecf9.1593795633.git.luto@kernel.org
1 parent f41f082
Raw File
Tip revision: 13cbc0cd4a30c815984ad88e3a2e5976493516a3 authored by Andy Lutomirski on 03 July 2020, 17:02:56 UTC
x86/entry/32: Fix #MC and #DB wiring on x86_32
Tip revision: 13cbc0c
irq_regs.c 
// SPDX-License-Identifier: GPL-2.0-or-later
/* saved per-CPU IRQ register pointer
 *
 * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 */
#include <linux/export.h>
#include <linux/percpu.h>
#include <asm/irq_regs.h>

#ifndef ARCH_HAS_OWN_IRQ_REGS
DEFINE_PER_CPU(struct pt_regs *, __irq_regs);
EXPORT_PER_CPU_SYMBOL(__irq_regs);
#endif
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