driver core: cpu: don't hand-override the uevent bus_type callback.

Instead of having to change the uevent bus_type callback by hand at
runtime, set it at build time based on the build configuration options,
making this much simpler to maintain and understand (and allow to make
the structure constant.)

Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Link: https://lore.kernel.org/r/20230210102408.1083177-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 8bb623039bb2f0ed61b491b2ba5c39ac72f90aaf..182c6122f8152b7b3822562c38e69b0cabc7fb0c 100644 (file)
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -125,17 +125,6 @@ static DEVICE_ATTR(release, S_IWUSR, NULL, cpu_release_store);
 #endif /* CONFIG_ARCH_CPU_PROBE_RELEASE */
 #endif /* CONFIG_HOTPLUG_CPU */
 
-struct bus_type cpu_subsys = {
-       .name = "cpu",
-       .dev_name = "cpu",
-       .match = cpu_subsys_match,
-#ifdef CONFIG_HOTPLUG_CPU
-       .online = cpu_subsys_online,
-       .offline = cpu_subsys_offline,
-#endif
-};
-EXPORT_SYMBOL_GPL(cpu_subsys);
-
 #ifdef CONFIG_KEXEC
 #include <linux/kexec.h>
 
@@ -348,6 +337,20 @@ static int cpu_uevent(const struct device *dev, struct kobj_uevent_env *env)
 }
 #endif
 
+struct bus_type cpu_subsys = {
+       .name = "cpu",
+       .dev_name = "cpu",
+       .match = cpu_subsys_match,
+#ifdef CONFIG_HOTPLUG_CPU
+       .online = cpu_subsys_online,
+       .offline = cpu_subsys_offline,
+#endif
+#ifdef CONFIG_GENERIC_CPU_AUTOPROBE
+       .uevent = cpu_uevent,
+#endif
+};
+EXPORT_SYMBOL_GPL(cpu_subsys);
+
 /*
  * register_cpu - Setup a sysfs device for a CPU.
  * @cpu - cpu->hotpluggable field set to 1 will generate a control file in
@@ -368,9 +371,6 @@ int register_cpu(struct cpu *cpu, int num)
        cpu->dev.offline_disabled = !cpu->hotpluggable;
        cpu->dev.offline = !cpu_online(num);
        cpu->dev.of_node = of_get_cpu_node(num, NULL);
-#ifdef CONFIG_GENERIC_CPU_AUTOPROBE
-       cpu->dev.bus->uevent = cpu_uevent;
-#endif
        cpu->dev.groups = common_cpu_attr_groups;
        if (cpu->hotpluggable)
                cpu->dev.groups = hotplugable_cpu_attr_groups;