Commit 1cf996ac authored by Bartosz Golaszewski's avatar Bartosz Golaszewski Committed by Danilo Krummrich
Browse files

driver core: make software nodes available earlier 



Software nodes are currently initialized in a function registered as
a postcore_initcall(). However, some devices may want to register
software nodes earlier than that (or also in a postcore_initcall() where
they're at the mercy of the link order). Move the initialization to
driver_init() making swnode available much earlier as well as making
their initialization time deterministic.

Suggested-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: default avatarBartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Acked-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20260402-nokia770-gpio-swnodes-v5-3-d730db3dd299@oss.qualcomm.com


[ Fix typo in the commit message: "s/merci/mercy/". - Danilo ]
Signed-off-by: default avatarDanilo Krummrich <dakr@kernel.org>
parent b3eb6a25

drivers/base/base.h

+1 −0
Original line number Diff line number Diff line
@@ -312,6 +312,7 @@ static inline int devtmpfs_create_node(struct device *dev) { return 0; } 
static inline int devtmpfs_delete_node(struct device *dev) { return 0; }

#endif



void software_node_init(void);

void software_node_notify(struct device *dev);

void software_node_notify_remove(struct device *dev);

drivers/base/init.c

+1 −0
Original line number Diff line number Diff line
@@ -34,6 +34,7 @@ void __init driver_init(void) 
	 */

	faux_bus_init();

	of_core_init();

	software_node_init();

	platform_bus_init();

	auxiliary_bus_init();

	memory_dev_init();

drivers/base/swnode.c

+2 −4
Original line number Diff line number Diff line
@@ -1127,11 +1127,9 @@ void software_node_notify_remove(struct device *dev) 
	}

}



static int __init software_node_init(void)

void __init software_node_init(void)

{

	swnode_kset = kset_create_and_add("software_nodes", NULL, kernel_kobj);

	if (!swnode_kset)

		return -ENOMEM;

	return 0;

		pr_err("failed to register software nodes\n");

}
 
postcore_initcall(software_node_init);