genirq: Add IRQ_MOVE_PENDING to irq_data.state

chip implementations need to know about it. Keep status in sync until
all users are fixed. 

Accessor function: irqd_is_setaffinity_pending(irqdata)

Coders who access them directly will be tracked down and slapped with
stinking trouts.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

6 files changed, 34 insertions, 6 deletions

diff --git a/kernel/irq/compat.h b/kernel/irq/compat.h
index 593abec..5e33aad 100644
--- a/kernel/irq/compat.h
+++ b/kernel/irq/compat.h
@@ -37,6 +37,15 @@ static inline void irq_compat_clr_masked(struct irq_desc *desc)
 {
 	desc->status &= ~IRQ_MASKED;
 }
+static inline void irq_compat_set_move_pending(struct irq_desc *desc)
+{
+	desc->status |= IRQ_MOVE_PENDING;
+}
+
+static inline void irq_compat_clr_move_pending(struct irq_desc *desc)
+{
+	desc->status &= ~IRQ_MOVE_PENDING;
+}
 #else
 static inline void irq_compat_set_progress(struct irq_desc *desc) { }
 static inline void irq_compat_clr_progress(struct irq_desc *desc) { }
@@ -46,5 +55,7 @@ static inline void irq_compat_set_pending(struct irq_desc *desc) { }
 static inline void irq_compat_clr_pending(struct irq_desc *desc) { }
 static inline void irq_compat_set_masked(struct irq_desc *desc) { }
 static inline void irq_compat_clr_masked(struct irq_desc *desc) { }
+static inline void irq_compat_set_move_pending(struct irq_desc *desc) { }
+static inline void irq_compat_clr_move_pending(struct irq_desc *desc) { }
 #endif
 
diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index cef0849..e93e609 100644
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -125,6 +125,21 @@ static inline void chip_bus_sync_unlock(struct irq_desc *desc)
 }
 
 /*
+ * Manipulation functions for irq_data.state
+ */
+static inline void irqd_set_move_pending(struct irq_data *d)
+{
+	d->state_use_accessors |= IRQD_SETAFFINITY_PENDING;
+	irq_compat_set_move_pending(irq_data_to_desc(d));
+}
+
+static inline void irqd_clr_move_pending(struct irq_data *d)
+{
+	d->state_use_accessors &= ~IRQD_SETAFFINITY_PENDING;
+	irq_compat_clr_move_pending(irq_data_to_desc(d));
+}
+
+/*
  * Debugging printout:
  */
 
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index ccc9389..9a99c47 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -107,7 +107,7 @@ static inline bool irq_can_move_pcntxt(struct irq_desc *desc)
 }
 static inline bool irq_move_pending(struct irq_desc *desc)
 {
-	return desc->status & IRQ_MOVE_PENDING;
+	return irqd_is_setaffinity_pending(&desc->irq_data);
 }
 static inline void
 irq_copy_pending(struct irq_desc *desc, const struct cpumask *mask)
@@ -156,7 +156,7 @@ int irq_set_affinity(unsigned int irq, const struct cpumask *mask)
 			ret = 0;
 		}
 	} else {
-		desc->status |= IRQ_MOVE_PENDING;
+		irqd_set_move_pending(&desc->irq_data);
 		irq_copy_pending(desc, mask);
 	}
 
diff --git a/kernel/irq/migration.c b/kernel/irq/migration.c
index 6f2f984..9485ae0 100644
--- a/kernel/irq/migration.c
+++ b/kernel/irq/migration.c
@@ -9,7 +9,7 @@ void move_masked_irq(int irq)
 	struct irq_desc *desc = irq_to_desc(irq);
 	struct irq_chip *chip = desc->irq_data.chip;
 
-	if (likely(!(desc->status & IRQ_MOVE_PENDING)))
+	if (likely(!irqd_is_setaffinity_pending(&desc->irq_data)))
 		return;
 
 	/*
@@ -20,7 +20,7 @@ void move_masked_irq(int irq)
 		return;
 	}
 
-	desc->status &= ~IRQ_MOVE_PENDING;
+	irqd_clr_move_pending(&desc->irq_data);
 
 	if (unlikely(cpumask_empty(desc->pending_mask)))
 		return;
@@ -58,7 +58,7 @@ void move_native_irq(int irq)
 	struct irq_desc *desc = irq_to_desc(irq);
 	bool masked;
 
-	if (likely(!(desc->status & IRQ_MOVE_PENDING)))
+	if (likely(!irqd_is_setaffinity_pending(&desc->irq_data)))
 		return;
 
 	if (unlikely(desc->istate & IRQS_DISABLED))
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 2644923..afe4e68 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -25,7 +25,7 @@ static int irq_affinity_proc_show(struct seq_file *m, void *v)
 	const struct cpumask *mask = desc->irq_data.affinity;
 
 #ifdef CONFIG_GENERIC_PENDING_IRQ
-	if (desc->status & IRQ_MOVE_PENDING)
+	if (irqd_is_setaffinity_pending(&desc->irq_data))
 		mask = desc->pending_mask;
 #endif
 	seq_cpumask(m, mask);
diff --git a/kernel/irq/settings.h b/kernel/irq/settings.h
index ef09824..bb104a2 100644
--- a/kernel/irq/settings.h
+++ b/kernel/irq/settings.h
@@ -20,3 +20,5 @@ enum {
 #define IRQ_MASKED		GOT_YOU_MORON
 #undef IRQ_WAKEUP
 #define IRQ_WAKEUP		GOT_YOU_MORON
+#undef IRQ_MOVE_PENDING
+#define IRQ_MOVE_PENDING	GOT_YOU_MORON