[PATCH] driver core: mark remaining local bus_type variables as const

Greg Kroah-Hartman
2023-12-19T15:35:15Z

Now that the driver core can properly handle constant struct bus_type,
change the local driver core bus_type variables to be a constant
structure as well, placing them into read-only memory which can not be
modified at runtime.

Cc: Dave Ertman <david.m.ertman@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: William Breathitt Gray <william.gray@linaro.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Kevin Hilman <khilman@kernel.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Len Brown <len.brown@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/base/auxiliary.c | 2 +-
drivers/base/isa.c | 2 +-
drivers/base/memory.c | 2 +-
drivers/base/node.c | 2 +-
drivers/base/power/domain.c | 2 +-
drivers/base/soc.c | 2 +-
6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/base/auxiliary.c b/drivers/base/auxiliary.c
index 4d4c2c8d26c4..d3a2c40c2f12 100644
--- a/drivers/base/auxiliary.c
+++ b/drivers/base/auxiliary.c
@@ -244,7 +244,7 @@ static void auxiliary_bus_shutdown(struct device *dev)
auxdrv->shutdown(auxdev);
}

-static struct bus_type auxiliary_bus_type = {
+static const struct bus_type auxiliary_bus_type = {
.name = "auxiliary",
.probe = auxiliary_bus_probe,
.remove = auxiliary_bus_remove,
diff --git a/drivers/base/isa.c b/drivers/base/isa.c
index 675ad3139224..e23d0b49a793 100644
--- a/drivers/base/isa.c
+++ b/drivers/base/isa.c
@@ -82,7 +82,7 @@ static int isa_bus_resume(struct device *dev)
return 0;
}

-static struct bus_type isa_bus_type = {
+static const struct bus_type isa_bus_type = {
.name = "isa",
.match = isa_bus_match,
.probe = isa_bus_probe,
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index f3b9a4d0fa3b..4ac3266da6b5 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -68,7 +68,7 @@ static inline unsigned long phys_to_block_id(unsigned long phys)
static int memory_subsys_online(struct device *dev);
static int memory_subsys_offline(struct device *dev);

-static struct bus_type memory_subsys = {
+static const struct bus_type memory_subsys = {
.name = MEMORY_CLASS_NAME,
.dev_name = MEMORY_CLASS_NAME,
.online = memory_subsys_online,
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 4d588f4658c8..433897eecbdc 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -21,7 +21,7 @@
#include <linux/swap.h>
#include <linux/slab.h>

-static struct bus_type node_subsys = {
+static const struct bus_type node_subsys = {
.name = "node",
.dev_name = "node",
};
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index da1777e39eaa..096871334cc7 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -2670,7 +2670,7 @@ static void genpd_release_dev(struct device *dev)
kfree(dev);
}

-static struct bus_type genpd_bus_type = {
+static const struct bus_type genpd_bus_type = {
.name = "genpd",
};

diff --git a/drivers/base/soc.c b/drivers/base/soc.c
index c741d0845852..282c38aece0d 100644
--- a/drivers/base/soc.c
+++ b/drivers/base/soc.c
@@ -28,7 +28,7 @@ struct soc_device {
int soc_dev_num;
};

-static struct bus_type soc_bus_type = {
+static const struct bus_type soc_bus_type = {
.name = "soc",
};
static bool soc_bus_registered;
--
2.43.0