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x86/apic: Use symbolic APIC_EOI_ACK
Use the symbol instead of hard-coded numbers, now that the reason for the value is documented where the constant is defined we don't need to duplicate this explanation in code. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Cc: Avi Kivity <avi@redhat.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: gleb@redhat.com Cc: Linus Torvalds <torvalds@linux-foundation.org> Link: http://lkml.kernel.org/r/ecbe4c79d69c172378e47e5a587ff5cd10293c9f.1337184153.git.mst@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
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@ -463,9 +463,7 @@ static inline void ack_APIC_irq(void)
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* ack_APIC_irq() actually gets compiled as a single instruction
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* ... yummie.
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*/
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/* Docs say use 0 for future compatibility */
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apic_write(APIC_EOI, 0);
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apic_write(APIC_EOI, APIC_EOI_ACK);
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}
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static inline unsigned default_get_apic_id(unsigned long x)
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