genirq: Wrap the remaning IRQ_* flags

Use wrappers to keep them away from the core code. Signed-off-by: Thomas Gleixner <[email protected]>
gakiwate · Feb 19, 2011 · 1ccb4e6 · 1ccb4e6
1 parent 876dbd4
commit 1ccb4e6
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Showing 5 changed files with 70 additions and 12 deletions.
diff --git a/kernel/irq/autoprobe.c b/kernel/irq/autoprobe.c
@@ -45,7 +45,7 @@ unsigned long probe_irq_on(void)
 	 */
 	for_each_irq_desc_reverse(i, desc) {
 		raw_spin_lock_irq(&desc->lock);
-		if (!desc->action && !(desc->status & IRQ_NOPROBE)) {
+		if (!desc->action && irq_settings_can_probe(desc)) {
 			/*
 			 * An old-style architecture might still have
 			 * the handle_bad_irq handler there:
@@ -74,7 +74,7 @@ unsigned long probe_irq_on(void)
 	 */
 	for_each_irq_desc_reverse(i, desc) {
 		raw_spin_lock_irq(&desc->lock);
-		if (!desc->action && !(desc->status & IRQ_NOPROBE)) {
+		if (!desc->action && irq_settings_can_probe(desc)) {
 			desc->istate |= IRQS_AUTODETECT | IRQS_WAITING;
 			if (irq_startup(desc)) {
 				irq_compat_set_pending(desc);

diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
@@ -674,7 +674,8 @@ __set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained,
 	desc->name = name;
 
 	if (handle != handle_bad_irq && is_chained) {
-		desc->status |= IRQ_NOREQUEST | IRQ_NOPROBE;
+		irq_settings_set_noprobe(desc);
+		irq_settings_set_norequest(desc);
 		irq_startup(desc);
 	}
 	raw_spin_unlock_irqrestore(&desc->lock, flags);

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
@@ -103,7 +103,7 @@ void irq_set_thread_affinity(struct irq_desc *desc)
 #ifdef CONFIG_GENERIC_PENDING_IRQ
 static inline bool irq_can_move_pcntxt(struct irq_desc *desc)
 {
-	return desc->status & IRQ_MOVE_PCNTXT;
+	return irq_settings_can_move_pcntxt(desc);
 }
 static inline bool irq_move_pending(struct irq_desc *desc)
 {
@@ -411,7 +411,7 @@ void __enable_irq(struct irq_desc *desc, unsigned int irq, bool resume)
 		if (desc->istate & IRQS_SUSPENDED)
 			goto err_out;
 		/* Prevent probing on this irq: */
-		desc->status |= IRQ_NOPROBE;
+		irq_settings_set_noprobe(desc);
 		irq_enable(desc);
 		check_irq_resend(desc, irq);
 		/* fall-through */
@@ -526,7 +526,7 @@ int can_request_irq(unsigned int irq, unsigned long irqflags)
 	if (!desc)
 		return 0;
 
-	if (desc->status & IRQ_NOREQUEST)
+	if (!irq_settings_can_request(desc))
 		return 0;
 
 	raw_spin_lock_irqsave(&desc->lock, flags);
@@ -820,7 +820,7 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
 	 * Check whether the interrupt nests into another interrupt
 	 * thread.
 	 */
-	nested = desc->status & IRQ_NESTED_THREAD;
+	nested = irq_settings_is_nested_thread(desc);
 	if (nested) {
 		if (!new->thread_fn)
 			return -EINVAL;
@@ -917,7 +917,7 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
 		if (new->flags & IRQF_ONESHOT)
 			desc->istate |= IRQS_ONESHOT;
 
-		if (!(desc->status & IRQ_NOAUTOEN))
+		if (irq_settings_can_autoenable(desc))
 			irq_startup(desc);
 		else
 			/* Undo nested disables: */
@@ -1217,7 +1217,7 @@ int request_threaded_irq(unsigned int irq, irq_handler_t handler,
 	if (!desc)
 		return -EINVAL;
 
-	if (desc->status & IRQ_NOREQUEST)
+	if (!irq_settings_can_request(desc))
 		return -EINVAL;
 
 	if (!handler) {
@@ -1292,7 +1292,7 @@ int request_any_context_irq(unsigned int irq, irq_handler_t handler,
 	if (!desc)
 		return -EINVAL;
 
-	if (desc->status & IRQ_NESTED_THREAD) {
+	if (irq_settings_is_nested_thread(desc)) {
 		ret = request_threaded_irq(irq, NULL, handler,
 					   flags, name, dev_id);
 		return !ret ? IRQC_IS_NESTED : ret;

diff --git a/kernel/irq/settings.h b/kernel/irq/settings.h
@@ -6,7 +6,12 @@ enum {
 	_IRQ_DEFAULT_INIT_FLAGS	= IRQ_DEFAULT_INIT_FLAGS,
 	_IRQ_PER_CPU		= IRQ_PER_CPU,
 	_IRQ_LEVEL		= IRQ_LEVEL,
+	_IRQ_NOPROBE		= IRQ_NOPROBE,
+	_IRQ_NOREQUEST		= IRQ_NOREQUEST,
+	_IRQ_NOAUTOEN		= IRQ_NOAUTOEN,
+	_IRQ_MOVE_PCNTXT	= IRQ_MOVE_PCNTXT,
 	_IRQ_NO_BALANCING	= IRQ_NO_BALANCING,
+	_IRQ_NESTED_THREAD	= IRQ_NESTED_THREAD,
 	_IRQF_MODIFY_MASK	= IRQF_MODIFY_MASK,
 };
 
@@ -34,6 +39,14 @@ enum {
 #define IRQ_AFFINITY_SET	GOT_YOU_MORON
 #undef IRQ_LEVEL
 #define IRQ_LEVEL		GOT_YOU_MORON
+#undef IRQ_NOPROBE
+#define IRQ_NOPROBE		GOT_YOU_MORON
+#undef IRQ_NOREQUEST
+#define IRQ_NOREQUEST		GOT_YOU_MORON
+#undef IRQ_NOAUTOEN
+#define IRQ_NOAUTOEN		GOT_YOU_MORON
+#undef IRQ_NESTED_THREAD
+#define IRQ_NESTED_THREAD	GOT_YOU_MORON
 #undef IRQF_MODIFY_MASK
 #define IRQF_MODIFY_MASK	GOT_YOU_MORON
 
@@ -90,3 +103,48 @@ static inline void irq_settings_set_level(struct irq_desc *desc)
 {
 	desc->status |= _IRQ_LEVEL;
 }
+
+static inline bool irq_settings_can_request(struct irq_desc *desc)
+{
+	return !(desc->status & _IRQ_NOREQUEST);
+}
+
+static inline void irq_settings_clr_norequest(struct irq_desc *desc)
+{
+	desc->status &= ~_IRQ_NOREQUEST;
+}
+
+static inline void irq_settings_set_norequest(struct irq_desc *desc)
+{
+	desc->status |= _IRQ_NOREQUEST;
+}
+
+static inline bool irq_settings_can_probe(struct irq_desc *desc)
+{
+	return !(desc->status & _IRQ_NOPROBE);
+}
+
+static inline void irq_settings_clr_noprobe(struct irq_desc *desc)
+{
+	desc->status &= ~_IRQ_NOPROBE;
+}
+
+static inline void irq_settings_set_noprobe(struct irq_desc *desc)
+{
+	desc->status |= _IRQ_NOPROBE;
+}
+
+static inline bool irq_settings_can_move_pcntxt(struct irq_desc *desc)
+{
+	return desc->status & _IRQ_MOVE_PCNTXT;
+}
+
+static inline bool irq_settings_can_autoenable(struct irq_desc *desc)
+{
+	return !(desc->status & _IRQ_NOAUTOEN);
+}
+
+static inline bool irq_settings_is_nested_thread(struct irq_desc *desc)
+{
+	return desc->status & _IRQ_NESTED_THREAD;
+}
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
@@ -68,8 +68,7 @@ static int try_one_irq(int irq, struct irq_desc *desc, bool force)
 	raw_spin_lock(&desc->lock);
 
 	/* PER_CPU and nested thread interrupts are never polled */
-	if (irq_settings_is_per_cpu(desc) ||
-	    (desc->status & IRQ_NESTED_THREAD))
+	if (irq_settings_is_per_cpu(desc) || irq_settings_is_nested_thread(desc))
 		goto out;
 
 	/*