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@@ -49,7 +49,6 @@ int handle_vm86_trap(struct kernel_vm86_regs *, long, int);
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void save_v86_state(struct kernel_vm86_regs *, int);
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struct task_struct;
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-void release_vm86_irqs(struct task_struct *);
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#define free_vm86(t) do { \
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struct thread_struct *__t = (t); \
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@@ -59,6 +58,20 @@ void release_vm86_irqs(struct task_struct *);
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} \
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} while (0)
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+/*
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+ * Support for VM86 programs to request interrupts for
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+ * real mode hardware drivers:
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+ */
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+#define FIRST_VM86_IRQ 3
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+#define LAST_VM86_IRQ 15
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+
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+static inline int invalid_vm86_irq(int irq)
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+{
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+ return irq < FIRST_VM86_IRQ || irq > LAST_VM86_IRQ;
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+}
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+
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+void release_vm86_irqs(struct task_struct *);
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+
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#else
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#define handle_vm86_fault(a, b)
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