Make get_property() return a const void *
PATCH 20/20 Make get_property() return a const void *
Previous changes have treated the return values of get_property as const, so now we can make the actual change to get_property(). There shouldn't be a need to cast the return values anymore.
We will now get compiler warnings when property values are assigned to a non-const variable.
If properties need to be updated, there's still the of_find_property function.
Built for cell_defconfig, chrp32_defconfig, g5_defconfig, iseries_defconfig, maple_defconfig, pmac32_defconfig, ppc64_defconfig and pseries_defconfig.
Signed-off-by Jeremy Kerr <[email protected]>
---
arch/powerpc/kernel/prom.c | 2 +- include/asm-powerpc/prom.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
arch/powerpc/kernel/prom.c +1 -1
@@ -1527,7 +1527,7 @@ struct property *of_find_property(struct* Find a property with a given name for a given node * and return the value. */ -void *get_property (struct device_node *np,const char *name,int *lenp) +const void *get_property (struct device_node *np,const char *name,int *lenp) {struct property *pp =of_find_property (np,name,lenp);return pp ? pp->value :NULL ;
include/asm-powerpc/prom.h +1 -1
@@ -160,7 +160,7 @@ extern void unflatten_device_tree(void);extern void early_init_devtree (void *);extern int device_is_compatible (struct device_node *device,const char *);extern int machine_is_compatible (const char *compat); -extern void *get_property (struct device_node *node,const char *name, +extern const void *get_property (struct device_node *node,const char *name,int *lenp);extern void print_properties (struct device_node *node);extern int prom_n_addr_cells (struct device_node * np);