module: add /sys/module/<name>/uevent files

Userspace wants to manage module parameters with udev rules.
This currently only works for loaded modules, but not for
built-in ones.

To allow access to the built-in modules we need to
re-trigger all module load events that happened before any
userspace was running. We already do the same thing for all
devices, subsystems(buses) and drivers.

This adds the currently missing /sys/module/<name>/uevent files
to all module entries.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (split & trivial fix)

1 files changed, 4 insertions, 0 deletions

diff --git a/kernel/params.c b/kernel/params.c
index 37e9b20a718b..22df3e0d142a 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -730,6 +730,10 @@ static struct module_kobject * __init locate_module_kobject(const char *name)
                 mk->kobj.kset = module_kset;
                 err = kobject_init_and_add(&mk->kobj, &module_ktype, NULL,
                                            "%s", name);
+#ifdef CONFIG_MODULES
+                if (!err)
+                        err = sysfs_create_file(&mk->kobj, &module_uevent.attr);
+#endif
                 if (err) {
                         kobject_put(&mk->kobj);
                         printk(KERN_ERR