From: Jakub Kicinski <kuba@xxxxxxxxxx> This driver does a lot of casting of smaller buffers to struct kvaser_cmd_ext, GCC 12 does not like that: | drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c:489:65: warning: array subscript ‘struct kvaser_cmd_ext[0]’ is partly outside array bounds of ‘unsigned char[32]’ [-Warray-bounds] | drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c:489:23: note: in expansion of macro ‘le16_to_cpu’ | 489 | ret = le16_to_cpu(((struct kvaser_cmd_ext *)cmd)->len); | | ^~~~~~~~~~~ Temporarily silence this warning (move it to W=1 builds). Link: https://lore.kernel.org/all/20220520194659.2356903-1-kuba@xxxxxxxxxx Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx> Tested-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx> Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx> --- drivers/net/can/usb/kvaser_usb/Makefile | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/can/usb/kvaser_usb/Makefile b/drivers/net/can/usb/kvaser_usb/Makefile index cf260044f0b9..b20d951a0790 100644 --- a/drivers/net/can/usb/kvaser_usb/Makefile +++ b/drivers/net/can/usb/kvaser_usb/Makefile @@ -1,3 +1,8 @@ # SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_CAN_KVASER_USB) += kvaser_usb.o kvaser_usb-y = kvaser_usb_core.o kvaser_usb_leaf.o kvaser_usb_hydra.o + +# FIXME: temporarily silence -Warray-bounds on non W=1+ builds +ifndef KBUILD_EXTRA_WARN +CFLAGS_kvaser_usb_hydra.o += -Wno-array-bounds +endif -- 2.35.1
