diff mbox series

[28/36] driver core: make the bus_type in struct device_driver constant

Message ID 20230313182918.1312597-28-gregkh@linuxfoundation.org
State New
Headers
Series [01/36] EDAC/sysfs: move to use bus_get_dev_root() |

Commit Message

Greg KH March 13, 2023, 6:29 p.m. UTC 
  The pointer to struct bus_type in struct device_driver should only be
pointing to something that can never change now that the driver core has
fixed up the previously writable fields.  So mark it as a constant
pointer to enforce this and move forward with the goal of moving
bus_type into read-only memory.

Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/device/driver.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/include/linux/device/driver.h b/include/linux/device/driver.h
index ceb0e477c2c8..0f22a6f46f8c 100644
--- a/include/linux/device/driver.h
+++ b/include/linux/device/driver.h
@@ -95,7 +95,7 @@  enum probe_type {
  */
 struct device_driver {
 	const char		*name;
-	struct bus_type		*bus;
+	const struct bus_type	*bus;
 
 	struct module		*owner;
 	const char		*mod_name;	/* used for built-in modules */