firmware: add debug facility to emulate forcing sysfs fallback
The CONFIG_FW_LOADER_USER_HELPER_FALLBACK kernel config is not
enabled my major distros, however its known to be enabled on
some Android kernels. Testing the firmware API properly then
means to test at least two different kernel configurations.
Since CONFIG_FW_LOADER_USER_HELPER_FALLBACK only does a simple
enablement under certain situations we can just emulate this
behaviour through a debugfs knob. This enables testing two of
the tree possible kernel configs with the firmware loader with
one kernel build.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
5 files changed
