of/address: Constify of_busses[] array and pointers

The of_busses array is fixed, so it and all struct of_bus pointers can
be const.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20241010-dt-const-v1-7-87a51f558425@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>

diff --git a/drivers/of/address.c b/drivers/of/address.c
index aa1a4e3..824bb44 100644 (file)
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -340,7 +340,7 @@ static int of_bus_default_flags_match(struct device_node *np)
  * Array of bus specific translators
  */
 
-static struct of_bus of_busses[] = {
+static const struct of_bus of_busses[] = {
 #ifdef CONFIG_PCI
        /* PCI */
        {
@@ -388,7 +388,7 @@ static struct of_bus of_busses[] = {
        },
 };
 
-static struct of_bus *of_match_bus(struct device_node *np)
+static const struct of_bus *of_match_bus(struct device_node *np)
 {
        int i;
 
@@ -419,8 +419,8 @@ static int of_empty_ranges_quirk(const struct device_node *np)
        return false;
 }
 
-static int of_translate_one(struct device_node *parent, struct of_bus *bus,
-                           struct of_bus *pbus, __be32 *addr,
+static int of_translate_one(const struct device_node *parent, const struct of_bus *bus,
+                           const struct of_bus *pbus, __be32 *addr,
                            int na, int ns, int pna, const char *rprop)
 {
        const __be32 *ranges;
@@ -505,7 +505,7 @@ static u64 __of_translate_address(struct device_node *node,
 {
        struct device_node *dev __free(device_node) = of_node_get(node);
        struct device_node *parent __free(device_node) = get_parent(dev);
-       struct of_bus *bus, *pbus;
+       const struct of_bus *bus, *pbus;
        __be32 addr[OF_MAX_ADDR_CELLS];
        int na, ns, pna, pns;
 
@@ -690,7 +690,7 @@ const __be32 *__of_get_address(struct device_node *dev, int index, int bar_no,
        const __be32 *prop;
        unsigned int psize;
        struct device_node *parent __free(device_node) = of_get_parent(dev);
-       struct of_bus *bus;
+       const struct of_bus *bus;
        int onesize, i, na, ns;
 
        if (parent == NULL)

diff --git a/include/linux/of_address.h b/include/linux/of_address.h
index bd46dbc..9e03436 100644 (file)
--- a/include/linux/of_address.h
+++ b/include/linux/of_address.h
@@ -10,7 +10,7 @@ struct of_bus;
 
 struct of_pci_range_parser {
        struct device_node *node;
-       struct of_bus *bus;
+       const struct of_bus *bus;
        const __be32 *range;
        const __be32 *end;
        int na;