Only a few drivers rely on the CAN rx offload framework (as of the
writing of this patch, only four: flexcan, m_can, mcp251xfd and
ti_hecc). Split it out of can-dev and add a new config symbol:
CAN_RX_OFFLOAD.
The drivers relying on CAN rx offload are in different sub
folders. Make CAN_RX_OFFLOAD an hidden option and tag all the drivers
depending on that feature with "select CAN_RX_OFFLOAD" so that the
option gets automatically enabled if and only if one of those drivers
is chosen.
Link: https://lore.kernel.org/all/20220610143009.323579-5-mailhol.vincent@wanadoo.fr
Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Acked-by: Max Staudt <max@enpas.org>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
The canonical way to select or deselect an object during compilation
is to use this pattern in the relevant Makefile:
bar-$(CONFIG_FOO) := foo.o
bittiming.c instead uses some #ifdef CONFIG_CAN_CALC_BITTIMG.
Create a new file named calc_bittiming.c with all the functions which
are conditionally compiled with CONFIG_CAN_CALC_BITTIMG and modify the
Makefile according to above pattern.
Link: https://lore.kernel.org/all/20220610143009.323579-4-mailhol.vincent@wanadoo.fr
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Acked-by: Max Staudt <max@enpas.org>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
In the next patches, the software/virtual drivers (slcan, v(x)can)
will depend on drivers/net/can/dev/skb.o.
This patch changes the scope of the can-dev module to include the
above mentioned drivers.
To do so, we reuse the menu "CAN Device Drivers" and turn it into a
configmenu using the config symbol CAN_DEV (which we released in
previous patch). Also, add a description to this new CAN_DEV
menuconfig.
The symbol CAN_DEV now only triggers the build of skb.o. For this
reasons, all the macros from linux/module.h are deported from
drivers/net/can/dev/dev.c to drivers/net/can/dev/skb.c.
Finally, drivers/net/can/dev/Makefile is adjusted accordingly.
Link: https://lore.kernel.org/all/20220610143009.323579-3-mailhol.vincent@wanadoo.fr
Suggested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Acked-by: Max Staudt <max@enpas.org>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
In the next patches, the scope of the can-dev module will grow to
engloble the software/virtual drivers (slcan, v(x)can). To this
extent, release CAN_DEV by renaming it into CAN_NETLINK. The config
symbol CAN_DEV will be reused to cover this extended scope.
The rationale for the name CAN_NETLINK is that netlink is the
predominant feature added here.
The current description only mentions platform drivers despite the
fact that this symbol is also required by "normal" devices (e.g. USB
or PCI) which do not fall under the platform devices category. The
description is updated accordingly to fix this gap.
Link: https://lore.kernel.org/all/20220610143009.323579-2-mailhol.vincent@wanadoo.fr
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Acked-by: Max Staudt <max@enpas.org>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
