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 last patch in contrast adds a short WMI driver development guide
to the WMI subsystem documentation, so that driver developers stop
submitting WMI drivers using the deprecated GUID-based interface.
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.
Armin Wolf (5):
platform/x86: wmi: Remove debug_dump_wdg module param
platform/x86: wmi: Remove debug_wmi module param
platform/x86: dell-smbios-wmi: Stop using WMI chardev
platform/x86: wmi: Remove chardev interface
platform/x86: wmi: Add driver development guide
.../wmi/driver-development-guide.rst | 126 ++++++++
Documentation/wmi/index.rst | 1 +
drivers/platform/x86/dell/dell-smbios-wmi.c | 163 +++++++---
drivers/platform/x86/wmi.c | 285 +-----------------
include/linux/wmi.h | 8 -
5 files changed, 256 insertions(+), 327 deletions(-)
create mode 100644 Documentation/wmi/driver-development-guide.rst
--
2.39.2
