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platform: x86: wmi: make wmi_bus_type const

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Now that the driver core can properly handle constant struct bus_type,
move the wmi_bus_type variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: "Ricardo B. Marliere" <ricardo@marliere.net>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20240204-bus_cleanup-platform-drivers-x86-v1-1-1f0839b385c6@marliere.net
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Ricardo B. Marliere
2024-02-04 11:40:16 -03:00
committed by Ilpo Järvinen
parent 3a057bf30e
commit 10fdfd13a3
1 changed files with 2 additions and 2 deletions
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drivers/platform/x86/wmi.c
+2 -2
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@@ -219,7 +219,7 @@ static int wmidev_match_guid(struct device *dev, const void *data)
return 0; return 0;
} }
static struct bus_type wmi_bus_type; static const struct bus_type wmi_bus_type;
static struct wmi_device *wmi_find_device_by_guid(const char *guid_string) static struct wmi_device *wmi_find_device_by_guid(const char *guid_string)
{ {
@@ -899,7 +899,7 @@ static struct class wmi_bus_class = {
.name = "wmi_bus", .name = "wmi_bus",
}; };
static struct bus_type wmi_bus_type = { static const struct bus_type wmi_bus_type = {
.name = "wmi", .name = "wmi",
.dev_groups = wmi_groups, .dev_groups = wmi_groups,
.match = wmi_dev_match, .match = wmi_dev_match,