In the 4.9.y tree, the following build warning keeps showing up: drivers/mtd/nand/atmel_nand.c:2337:19: warning: unused variable 'mtd' [-Wunused-variable] This driver was deleted / restructured in newer kernels so this is a 4.9.y patch only. Cc: Wenyou Yang <wenyou.yang@atmel.com> Cc: Josh Wu <rainyfeeling@outlook.com> Cc: Boris Brezillon <boris.brezillon@free-electrons.com> Cc: Richard Weinberger <richard@nod.at> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Marek Vasut <marek.vasut@gmail.com> Cc: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>