Check for the symbols that exists under /sys but aren't
defined at Documentation/ABI.
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/958e4f3a319148af6d847c0df95e35426f9c4c5f.1631957565.git.mchehab+huawei@kernel.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>