[PATCH] irqdomain: add __rcu annotations to radix tree slot

From: Masahiro Yamada
Date: Fri Sep 22 2017 - 08:21:32 EST


Fix different address spaces warning of sparse.

kernel/irq/irqdomain.c:1463:14: warning: incorrect type in assignment (different address spaces)
kernel/irq/irqdomain.c:1463:14: expected void **slot
kernel/irq/irqdomain.c:1463:14: got void [noderef] <asn:4>**
kernel/irq/irqdomain.c:1465:66: warning: incorrect type in argument 2 (different address spaces)
kernel/irq/irqdomain.c:1465:66: expected void [noderef] <asn:4>**slot
kernel/irq/irqdomain.c:1465:66: got void **slot

Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
---

kernel/irq/irqdomain.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 3a01c27..44a9908 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -946,7 +946,7 @@ static int virq_debug_show(struct seq_file *m, void *private)
struct irq_desc *desc;
struct irq_domain *domain;
struct radix_tree_iter iter;
- void **slot;
+ void __rcu **slot;
int i;

seq_printf(m, " %-16s %-6s %-10s %-10s %s\n",
@@ -1454,7 +1454,7 @@ int __irq_domain_alloc_irqs(struct irq_domain *domain, int irq_base,
/* The irq_data was moved, fix the revmap to refer to the new location */
static void irq_domain_fix_revmap(struct irq_data *d)
{
- void **slot;
+ void __rcu **slot;

if (d->hwirq < d->domain->revmap_size)
return; /* Not using radix tree. */
--
2.7.4