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kernel: param: initialize module_kset in a pure_initcall

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Commit "driver core: platform: set mod_name in driver registration" will
set struct device_driver's mod_name member for platform driver
registration. For a driver to be registered with its mod_name set,
module_kset needs to be initialized, which currently happens in a
subsys_initcall in param_sysfs_init().  The tegra cbb drivers register
themselves before module_kset init, in a core_initcall. This works
currently because lookup_or_create_module_kobject(), which dereferences
module_kset via kset_find_obj(), is not called if mod_name is not set,
which is the case now.

So in preparation for the commit "driver core: platform: set mod_name in
driver registration", move module_kset init to pure_initcall level,
ensuring it happens before tegra cbb driver registration.

Suggested-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Gary Guo <gary@garyguo.net>
Co-developed-by: Rahul Bukte <rahul.bukte@sony.com>
Signed-off-by: Rahul Bukte <rahul.bukte@sony.com>
Signed-off-by: Shashank Balaji <shashank.mahadasyam@sony.com>
Link: https://patch.msgid.link/20260601101942.4002661-1-shashank.mahadasyam@sony.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
This commit is contained in:
Shashank Balaji
2026-06-01 19:19:41 +09:00
committed by Danilo Krummrich
parent cd6e95e7ab
commit c82dfce478
1 changed files with 4 additions and 4 deletions
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8
kernel/params.c
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@@ -942,9 +942,9 @@ const struct kobj_type module_ktype = {
/*
* param_sysfs_init - create "module" kset
*
* This must be done before the initramfs is unpacked and
* request_module() thus becomes possible, because otherwise the
* module load would fail in mod_sysfs_init.
* This must be done before any driver registration so that when a driver comes
* from a built-in module, the driver core can add the module under /sys/module
* and create the associated driver symlinks.
*/
static int __init param_sysfs_init(void)
{
@@ -957,7 +957,7 @@ static int __init param_sysfs_init(void)
return 0;
}
subsys_initcall(param_sysfs_init);
pure_initcall(param_sysfs_init);
/*
* param_sysfs_builtin_init - add sysfs version and parameter