x86/idt: Annotate alloc_intr_gate() with __init

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There seems to be no reason to allocate interrupt gates after init. Mark
alloc_intr_gate() as __init and add WARN_ON() checks making sure it is
only used before idt_setup_apic_and_irq_gates() finalizes IDT setup and
maps all un-allocated entries to spurious entries.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200428093824.1451532-3-vkuznets@redhat.com

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Vitaly Kuznetsov 2020-04-28 11:38:23 +02:00 • committed by Thomas Gleixner

parent a0bb51f263

commit 06184325a1

1 changed files with 13 additions and 3 deletions

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arch/x86/kernel/idt.c

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