[PATCH v6 31/37] firmware: arm_scmi: make references to handle const

Cristian Marussi
2021-02-02T22:26:00Z

Now that all the protocol private variable data have been moved out of
struct scmi_handle, mark all of its references as const.

Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
---
drivers/firmware/arm_scmi/common.h | 4 ++--
drivers/firmware/arm_scmi/driver.c | 8 ++++----
2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/firmware/arm_scmi/common.h b/drivers/firmware/arm_scmi/common.h
index c7b48f1e5fe0..45387a32d79e 100644
--- a/drivers/firmware/arm_scmi/common.h
+++ b/drivers/firmware/arm_scmi/common.h
@@ -274,8 +274,8 @@ void __exit scmi_##name##_unregister(void) \

const struct scmi_protocol *scmi_get_protocol(int protocol_id);

-int scmi_acquire_protocol(struct scmi_handle *handle, u8 protocol_id);
-void scmi_release_protocol(struct scmi_handle *handle, u8 protocol_id);
+int scmi_acquire_protocol(const struct scmi_handle *handle, u8 protocol_id);
+void scmi_release_protocol(const struct scmi_handle *handle, u8 protocol_id);

/* SCMI Transport */
/**
diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c
index 09149da50a57..2c2bcd64e3b3 100644
--- a/drivers/firmware/arm_scmi/driver.c
+++ b/drivers/firmware/arm_scmi/driver.c
@@ -729,7 +729,7 @@ scmi_get_revision_area(const struct scmi_protocol_handle *ph)
* Return: A reference to an initialized protocol instance or error on failure.
*/
static struct scmi_protocol_instance * __must_check
-scmi_get_protocol_instance(struct scmi_handle *handle, u8 protocol_id)
+scmi_get_protocol_instance(const struct scmi_handle *handle, u8 protocol_id)
{
int ret = -ENOMEM;
void *gid;
@@ -808,7 +808,7 @@ scmi_get_protocol_instance(struct scmi_handle *handle, u8 protocol_id)
*
* Return: 0 if protocol was acquired successfully.
*/
-int scmi_acquire_protocol(struct scmi_handle *handle, u8 protocol_id)
+int scmi_acquire_protocol(const struct scmi_handle *handle, u8 protocol_id)
{
return PTR_ERR_OR_ZERO(scmi_get_protocol_instance(handle, protocol_id));
}
@@ -821,7 +821,7 @@ int scmi_acquire_protocol(struct scmi_handle *handle, u8 protocol_id)
* Remove one user for the specified protocol and triggers de-initialization
* and resources de-allocation once the last user has gone.
*/
-void scmi_release_protocol(struct scmi_handle *handle, u8 protocol_id)
+void scmi_release_protocol(const struct scmi_handle *handle, u8 protocol_id)
{
struct scmi_info *info = handle_to_scmi_info(handle);
struct scmi_protocol_instance *pi;
@@ -876,7 +876,7 @@ scmi_is_protocol_implemented(const struct scmi_handle *handle, u8 prot_id)
}

struct scmi_protocol_devres {
- struct scmi_handle *handle;
+ const struct scmi_handle *handle;
u8 protocol_id;
};

--
2.17.1