[PATCH v5 2/4] kernel: param: initialize module_kset in a pure_initcall
Shashank Balaji
shashank.mahadasyam at sony.com
Mon May 18 03:19:58 PDT 2026
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 at garyguo.net>
Co-developed-by: Rahul Bukte <rahul.bukte at sony.com>
Signed-off-by: Rahul Bukte <rahul.bukte at sony.com>
Signed-off-by: Shashank Balaji <shashank.mahadasyam at sony.com>
---
Patch 4 depends on this patch
---
kernel/params.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/params.c b/kernel/params.c
index 74d620bc2521..ac088d4b09a9 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -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
--
2.43.0
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