of: add 'const' for of_property_*_string*() parameter '*np'
The of_property_{read,count,match}_string* family of functions never
modify the struct device_node pointer that is passed in, so there is no
reason for it to be non-const. Equivalent functions for all other types
already take a 'const struct device_node *np'.
Signed-off-by: David Rivshin <drivshin@allworx.com>
Signed-off-by: Rob Herring <robh@kernel.org>
diff --git a/include/linux/of.h b/include/linux/of.h
index dd10626..588fdd5 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -296,13 +296,13 @@
u64 *out_values,
size_t sz);
-extern int of_property_read_string(struct device_node *np,
+extern int of_property_read_string(const struct device_node *np,
const char *propname,
const char **out_string);
-extern int of_property_match_string(struct device_node *np,
+extern int of_property_match_string(const struct device_node *np,
const char *propname,
const char *string);
-extern int of_property_read_string_helper(struct device_node *np,
+extern int of_property_read_string_helper(const struct device_node *np,
const char *propname,
const char **out_strs, size_t sz, int index);
extern int of_device_is_compatible(const struct device_node *device,
@@ -538,14 +538,14 @@
return -ENOSYS;
}
-static inline int of_property_read_string(struct device_node *np,
+static inline int of_property_read_string(const struct device_node *np,
const char *propname,
const char **out_string)
{
return -ENOSYS;
}
-static inline int of_property_read_string_helper(struct device_node *np,
+static inline int of_property_read_string_helper(const struct device_node *np,
const char *propname,
const char **out_strs, size_t sz, int index)
{
@@ -571,7 +571,7 @@
return -ENOSYS;
}
-static inline int of_property_match_string(struct device_node *np,
+static inline int of_property_match_string(const struct device_node *np,
const char *propname,
const char *string)
{
@@ -773,7 +773,7 @@
*
* If @out_strs is NULL, the number of strings in the property is returned.
*/
-static inline int of_property_read_string_array(struct device_node *np,
+static inline int of_property_read_string_array(const struct device_node *np,
const char *propname, const char **out_strs,
size_t sz)
{
@@ -792,7 +792,7 @@
* does not have a value, and -EILSEQ if the string is not null-terminated
* within the length of the property data.
*/
-static inline int of_property_count_strings(struct device_node *np,
+static inline int of_property_count_strings(const struct device_node *np,
const char *propname)
{
return of_property_read_string_helper(np, propname, NULL, 0, 0);
@@ -816,7 +816,7 @@
*
* The out_string pointer is modified only if a valid string can be decoded.
*/
-static inline int of_property_read_string_index(struct device_node *np,
+static inline int of_property_read_string_index(const struct device_node *np,
const char *propname,
int index, const char **output)
{