Hi Everyone, This patch series fixes handling of module_kboject creation. A driver expect module_kset list populated with its corresponding module_kboject to create its /sys/module/<built-in-module>/drivers directory. Since, [1] commit 96a1a2412acb ("kernel/params.c: defer most of param_sysfs_init() to late_initcall time") Call to populate module_kset list is deffered to save init time so that external watchdog doesn't fireup on some boards and Linux can take responsibility of feeding watchdog before it spuriously resets the system. However, [1] this fix caused another issue i.e, consumers of module_kset can't get related module_kboject during driver initialisation and hence can't create their /sys/module/<built-in-module>/drivers directory. Consequently, [1] breaks user-space applications for eg: DPDK, which expects /sys/module/vfio_pci/drivers/pci:vfio-pci/new_id to be present. The second issue was reported and the [2] revert of [1] was proposed. However, [2] the Revert doesn't address original issue reported in [1]. This patch series addresses both issues reported in [1] and [2]. Changes since initial RFC(Based on Rasmus's suggestions): Patch 1: Renames locate_module_kobject() to lookup_or_create_module_kobject(), to accurately describe its operations. Patch 2: Moves lookup_or_create_module_kobject() and to_module* macros to module.h, so that driver code can use these. Patch 3: Handles module_kboject creation and population of module_kset list to fix [1] and [2] issues. [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96a1a2412acb [2] https://lore.kernel.org/lkml/20250130225803.321004-1-shyamsaini@xxxxxxxxxxxxxxxxxxx/ Thanks, Shyam Shyam Saini (3): kernel: param: rename locate_module_kobject include: move lookup_or_create_module_kobject()/to_module* to module.h drivers: base: handle module_kboject creation drivers/base/module.c | 13 +++++-------- include/linux/module.h | 39 +++++++++++++++++++++++++++++++++++++ kernel/params.c | 44 ++---------------------------------------- 3 files changed, 46 insertions(+), 50 deletions(-) -- 2.34.1