Merge branch 'linus' into irq/core to pick up dependencies.

2 files changed, 18 insertions, 23 deletions

diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index e6a9c36470ee..82b8b18ee1eb 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -1726,25 +1726,14 @@ static int irq_domain_debug_show(struct seq_file *m, void *p)
 	irq_domain_debug_show_one(m, d, 0);
 	return 0;
 }
-
-static int irq_domain_debug_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, irq_domain_debug_show, inode->i_private);
-}
-
-static const struct file_operations dfs_domain_ops = {
-	.open		= irq_domain_debug_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(irq_domain_debug);
 
 static void debugfs_add_domain_dir(struct irq_domain *d)
 {
 	if (!d->name || !domain_dir || d->debugfs_file)
 		return;
 	d->debugfs_file = debugfs_create_file(d->name, 0444, domain_dir, d,
-					      &dfs_domain_ops);
+					      &irq_domain_debug_fops);
 }
 
 static void debugfs_remove_domain_dir(struct irq_domain *d)
@@ -1760,7 +1749,8 @@ void __init irq_domain_debugfs_init(struct dentry *root)
 	if (!domain_dir)
 		return;
 
-	debugfs_create_file("default", 0444, domain_dir, NULL, &dfs_domain_ops);
+	debugfs_create_file("default", 0444, domain_dir, NULL,
+			    &irq_domain_debug_fops);
 	mutex_lock(&irq_domain_mutex);
 	list_for_each_entry(d, &irq_domain_list, link)
 		debugfs_add_domain_dir(d);
diff --git a/kernel/irq/matrix.c b/kernel/irq/matrix.c
index 5187dfe809ac..4c5770407031 100644
--- a/kernel/irq/matrix.c
+++ b/kernel/irq/matrix.c
@@ -16,6 +16,7 @@ struct cpumap {
 	unsigned int		available;
 	unsigned int		allocated;
 	unsigned int		managed;
+	bool			initialized;
 	bool			online;
 	unsigned long		alloc_map[IRQ_MATRIX_SIZE];
 	unsigned long		managed_map[IRQ_MATRIX_SIZE];
@@ -81,9 +82,11 @@ void irq_matrix_online(struct irq_matrix *m)
 
 	BUG_ON(cm->online);
 
-	bitmap_zero(cm->alloc_map, m->matrix_bits);
-	cm->available = m->alloc_size - (cm->managed + m->systembits_inalloc);
-	cm->allocated = 0;
+	if (!cm->initialized) {
+		cm->available = m->alloc_size;
+		cm->available -= cm->managed + m->systembits_inalloc;
+		cm->initialized = true;
+	}
 	m->global_available += cm->available;
 	cm->online = true;
 	m->online_maps++;
@@ -370,14 +373,16 @@ void irq_matrix_free(struct irq_matrix *m, unsigned int cpu,
 	if (WARN_ON_ONCE(bit < m->alloc_start || bit >= m->alloc_end))
 		return;
 
-	if (cm->online) {
-		clear_bit(bit, cm->alloc_map);
-		cm->allocated--;
+	clear_bit(bit, cm->alloc_map);
+	cm->allocated--;
+
+	if (cm->online)
 		m->total_allocated--;
-		if (!managed) {
-			cm->available++;
+
+	if (!managed) {
+		cm->available++;
+		if (cm->online)
 			m->global_available++;
-		}
 	}
 	trace_irq_matrix_free(bit, cpu, m, cm);
 }