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authorLeo Yan <leo.yan@linaro.org>2017-06-05 14:15:06 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-06-09 11:45:24 +0200
commitf42fe520e449bda213f035478ddc9cf99e9082ac (patch)
treef3f89e45a2229ca2494f77a9c24b4cc9b4bf8507
parent2cd541402829e7cc6621d2fc0ef329321559cb26 (diff)
coresight: use const for device_node structures
Almost low level functions from open firmware have used const to qualify device_node structures, so add const for device_node parameters in of_coresight related functions. Signed-off-by: Leo Yan <leo.yan@linaro.org> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/hwtracing/coresight/of_coresight.c7
-rw-r--r--include/linux/coresight.h7
2 files changed, 8 insertions, 6 deletions
diff --git a/drivers/hwtracing/coresight/of_coresight.c b/drivers/hwtracing/coresight/of_coresight.c
index 09142e99e915..2749853b9010 100644
--- a/drivers/hwtracing/coresight/of_coresight.c
+++ b/drivers/hwtracing/coresight/of_coresight.c
@@ -52,7 +52,7 @@ of_coresight_get_endpoint_device(struct device_node *endpoint)
endpoint, of_dev_node_match);
}
-static void of_coresight_get_ports(struct device_node *node,
+static void of_coresight_get_ports(const struct device_node *node,
int *nr_inport, int *nr_outport)
{
struct device_node *ep = NULL;
@@ -101,8 +101,9 @@ static int of_coresight_alloc_memory(struct device *dev,
return 0;
}
-struct coresight_platform_data *of_get_coresight_platform_data(
- struct device *dev, struct device_node *node)
+struct coresight_platform_data *
+of_get_coresight_platform_data(struct device *dev,
+ const struct device_node *node)
{
int i = 0, ret = 0, cpu;
struct coresight_platform_data *pdata;
diff --git a/include/linux/coresight.h b/include/linux/coresight.h
index 035c16c9a505..bf0aa50880be 100644
--- a/include/linux/coresight.h
+++ b/include/linux/coresight.h
@@ -263,11 +263,12 @@ static inline int coresight_timeout(void __iomem *addr, u32 offset,
#endif
#ifdef CONFIG_OF
-extern struct coresight_platform_data *of_get_coresight_platform_data(
- struct device *dev, struct device_node *node);
+extern struct coresight_platform_data *
+of_get_coresight_platform_data(struct device *dev,
+ const struct device_node *node);
#else
static inline struct coresight_platform_data *of_get_coresight_platform_data(
- struct device *dev, struct device_node *node) { return NULL; }
+ struct device *dev, const struct device_node *node) { return NULL; }
#endif
#ifdef CONFIG_PID_NS

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