Constify device_get_match_data() as OF and ACPI variants return
constant value.
Fixes: 80212a162329 ("ACPI / bus: Introduce acpi_get_match_data() function")
Fixes: b283f157611f ("device property: Introduce a common API to fetch device match data")
Fixes: 146b4dbb0eef ("ACPI: properties: Implement get_match_data() callback")
Cc: Sinan Kaya <okaya@xxxxxxxxxxxxxx>
Cc: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Cc: Vinod Koul <vinod.koul@xxxxxxxxx>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/acpi/bus.c | 4 ++--
drivers/acpi/property.c | 2 +-
drivers/base/property.c | 5 ++---
drivers/of/property.c | 4 ++--
include/linux/acpi.h | 4 ++--
include/linux/fwnode.h | 4 ++--
include/linux/property.h | 2 +-
7 files changed, 12 insertions(+), 13 deletions(-)
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index da29c103f76a..f4bba5b03843 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -785,7 +785,7 @@ const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
}
EXPORT_SYMBOL_GPL(acpi_match_device);
-void *acpi_device_get_match_data(const struct device *dev)
+const void *acpi_device_get_match_data(const struct device *dev)
{
const struct acpi_device_id *match;
@@ -793,7 +793,7 @@ void *acpi_device_get_match_data(const struct device *dev)
if (!match)
return NULL;
- return (void *)match->driver_data;
+ return (const void *)match->driver_data;
}
EXPORT_SYMBOL_GPL(acpi_device_get_match_data);
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index f9b5fa230a86..5815356ea6ad 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -1271,7 +1271,7 @@ static int acpi_fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
return 0;
}
-static void *
+static const void *
acpi_fwnode_device_get_match_data(const struct fwnode_handle *fwnode,
const struct device *dev)
{
diff --git a/drivers/base/property.c b/drivers/base/property.c
index 302236281d83..8f205f6461ed 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -1410,9 +1410,8 @@ int fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
}
EXPORT_SYMBOL(fwnode_graph_parse_endpoint);
-void *device_get_match_data(struct device *dev)
+const void *device_get_match_data(struct device *dev)
{
- return fwnode_call_ptr_op(dev_fwnode(dev), device_get_match_data,
- dev);
+ return fwnode_call_ptr_op(dev_fwnode(dev), device_get_match_data, dev);
}
EXPORT_SYMBOL_GPL(device_get_match_data);
diff --git a/drivers/of/property.c b/drivers/of/property.c
index 36ed84e26d9c..f46828e3b082 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -977,11 +977,11 @@ static int of_fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
return 0;
}
-static void *
+static const void *
of_fwnode_device_get_match_data(const struct fwnode_handle *fwnode,
const struct device *dev)
{
- return (void *)of_device_get_match_data(dev);
+ return of_device_get_match_data(dev);
}
const struct fwnode_operations of_fwnode_ops = {
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index d0cbbbd88e0e..9a618204aba4 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -587,7 +587,7 @@ extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
const struct device *dev);
-void *acpi_device_get_match_data(const struct device *dev);
+const void *acpi_device_get_match_data(const struct device *dev);
extern bool acpi_driver_match_device(struct device *dev,
const struct device_driver *drv);
int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
@@ -766,7 +766,7 @@ static inline const struct acpi_device_id *acpi_match_device(
return NULL;
}
-static inline void *acpi_device_get_match_data(const struct device *dev)
+static inline const void *acpi_device_get_match_data(const struct device *dev)
{
return NULL;
}
diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h
index 4fa1a489efe4..4fe8f289b3f6 100644
--- a/include/linux/fwnode.h
+++ b/include/linux/fwnode.h
@@ -73,8 +73,8 @@ struct fwnode_operations {
struct fwnode_handle *(*get)(struct fwnode_handle *fwnode);
void (*put)(struct fwnode_handle *fwnode);
bool (*device_is_available)(const struct fwnode_handle *fwnode);
- void *(*device_get_match_data)(const struct fwnode_handle *fwnode,
- const struct device *dev);
+ const void *(*device_get_match_data)(const struct fwnode_handle *fwnode,
+ const struct device *dev);
bool (*property_present)(const struct fwnode_handle *fwnode,
const char *propname);
int (*property_read_int_array)(const struct fwnode_handle *fwnode,
diff --git a/include/linux/property.h b/include/linux/property.h
index 769d372c1edf..2eea4b310fc2 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -283,7 +283,7 @@ bool device_dma_supported(struct device *dev);
enum dev_dma_attr device_get_dma_attr(struct device *dev);
-void *device_get_match_data(struct device *dev);
+const void *device_get_match_data(struct device *dev);
int device_get_phy_mode(struct device *dev);
--
2.15.1
--
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