On Tuesday, January 3, 2023 3:17:43 AM CET Zhang, Rui wrote: > On Mon, 2023-01-02 at 18:05 +0100, Rafael J. Wysocki wrote: > > From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> > > > > The ACPI custom_method debugfs interface is security-sensitive and > > concurrent access to it is broken [1]. > > > > Moreover, the recipe for preparing a customized version of a given > > control method has changed at one point due to ACPICA changes, which > > has not been reflected in its documentation, so whoever used it > > before > > has had to adapt an no problems with it have been reported. > > > > The latter likely means that the number of its users is limited at > > best > > and attempting to fix the issues mentioned above is likely not worth > > the > > effort. Moreover, if it gets broken in the process, the breakage may > > not > > be readily discovered, so deleting it altogheher appeares to be a > > better > > option. > > > > Accordingly, drop custom_method along with its (outdated anyway) > > documentation. > > > > Link: > > https://lore.kernel.org/linux-acpi/20221227063335.61474-1-zh.nvgt@xxxxxxxxx/ > > # [1] > > Reported-by: Hang Zhang <zh.nvgt@xxxxxxxxx> > > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> > > --- > > Documentation/firmware-guide/acpi/method-customizing.rst | 89 ---- > > -------- > > Documentation/firmware-guide/acpi/index.rst > needs to be updated as well. Right, thanks! I've just sent a v2 of the patch with that fixed.
