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As none of the proposed things that need to be changed in the gasket
drivers have ever been done, and there has not been any forward progress
to get this out of staging, it seems totally abandonded so remove the
code entirely so that people do not spend their time doing tiny cleanups
for code that will never get out of staging.
If this code is actually being used, it can be reverted simply and then
cleaned up properly, but as it is abandoned, let's just get rid of it.
Cc: Todd Poynor <toddpoynor@google.com>
Cc: Ben Chan <benchan@chromium.org>
Cc: Richard Yeh <rcy@google.com>
Acked-by: Rob Springer <rspringer@google.com>
Link: https://lore.kernel.org/r/20210315154413.3084149-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The Gasket (Google ASIC Software, Kernel Extensions, and Tools) kernel
framework is a generic, flexible system that supports thin kernel
drivers. Gasket kernel drivers are expected to handle opening and
closing devices, mmap'ing BAR space as requested, a small selection of
ioctls, and handling page table translation (covered below). Any other
functions should be handled by userspace code.
The Gasket common module is not enough to run a device. In order to
customize the Gasket code for a given piece of hardware, a device
specific module must be created. At a minimum, this module must define a
struct gasket_driver_desc containing the device-specific data for use by
the framework; in addition, the module must declare an __init function
that calls gasket_register_device with the module's gasket_driver_desc
struct. Finally, the driver must define an exit function that calls
gasket_unregister_device with the module's gasket_driver_desc struct.
One of the core assumptions of the Gasket framework is that precisely
one process is allowed to have an open write handle to the device node
at any given time. (That process may, once it has one write handle, open
any number of additional write handles.) This is accomplished by
tracking open and close data for each driver instance.
Signed-off-by: Rob Springer <rspringer@google.com>
Signed-off-by: John Joseph <jnjoseph@google.com>
Signed-off-by: Simon Que <sque@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Greg Kroah-Hartman
Simon Que