[PATCH 3/5] firewire: core: add helper function to detect data of iso resource structure

From: Takashi Sakamoto
Date: Mon Aug 12 2024 - 19:52:47 EST


It depends on the function assigned to release member to identify
resource structure.

This commit adds a helper function to identify iso_resource structure.

Signed-off-by: Takashi Sakamoto <o-takashi@xxxxxxxxxxxxx>
---
drivers/firewire/core-cdev.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/firewire/core-cdev.c b/drivers/firewire/core-cdev.c
index e72f91cc3711..6fe2a2ea9869 100644
--- a/drivers/firewire/core-cdev.c
+++ b/drivers/firewire/core-cdev.c
@@ -161,6 +161,11 @@ static struct iso_resource *to_iso_resource(struct client_resource *resource)

static void release_iso_resource(struct client *, struct client_resource *);

+static int is_iso_resource(const struct client_resource *resource)
+{
+ return resource->release == release_iso_resource;
+}
+
static void schedule_iso_resource(struct iso_resource *r, unsigned long delay)
{
client_get(r->client);
@@ -170,7 +175,7 @@ static void schedule_iso_resource(struct iso_resource *r, unsigned long delay)

static void schedule_if_iso_resource(struct client_resource *resource)
{
- if (resource->release == release_iso_resource)
+ if (is_iso_resource(resource))
schedule_iso_resource(to_iso_resource(resource), 0);
}

--
2.43.0