This patch series removes three features deemed obsolete: - the debug_dump_wdg module param: - suffers from garbled output due to pr_cont() - functionality is better provided by "fwts wmi" - the debug_event module param: - pr_cont() usage - uses the deprecated GUID-based API - largely replaced by the ACPI netlink interface - ioctl interface - used only by a single driver, no adoption otherwise - numerous design issues Since the ioctl interface is actually used by userspace programs, the only user (the dell-smbios-wmi driver) was modified to implement the necessary pieces itself so that no regressions are expected. The series depends on commit cbf54f37600e ("platform/x86: wmi: Skip blocks with zero instances"), which is currently in the "fixes" tree. All patches where tested on a Dell Inspiron 3505 and work without issues. Changes since v1: - add Reviewed-by to patches 1, 2 and 5 - drop patch adding the driver development guide - rework error handling in dell-smbios-wmi Armin Wolf (5): platform/x86: wmi: Remove debug_dump_wdg module param platform/x86: wmi: Remove debug_event module param platform/x86: dell-smbios-wmi: Use devm_get_free_pages() platform/x86: dell-smbios-wmi: Stop using WMI chardev platform/x86: wmi: Remove chardev interface drivers/platform/x86/dell/dell-smbios-wmi.c | 173 ++++++++---- drivers/platform/x86/wmi.c | 285 +------------------- include/linux/wmi.h | 8 - 3 files changed, 132 insertions(+), 334 deletions(-) -- 2.39.2