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can: Kconfig: add CONFIG_CAN_RX_OFFLOAD

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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>
This commit is contained in:
Vincent Mailhol 2022-06-10 23:30:06 +09:00 committed by Marc Kleine-Budde
parent 0c7e115138
commit bfe0092dc2
4 changed files with 8 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/net/can/Kconfig
View File

@ -102,6 +102,9 @@ config CAN_CALC_BITTIMING
If unsure, say Y.
config CAN_RX_OFFLOAD
bool
config CAN_AT91
tristate "Atmel AT91 onchip CAN controller"
depends on (ARCH_AT91 || COMPILE_TEST) && HAS_IOMEM
@ -113,6 +116,7 @@ config CAN_FLEXCAN
tristate "Support for Freescale FLEXCAN based chips"
depends on OF || COLDFIRE || COMPILE_TEST
depends on HAS_IOMEM
select CAN_RX_OFFLOAD
help
Say Y here if you want to support for Freescale FlexCAN.
@ -162,6 +166,7 @@ config CAN_SUN4I
config CAN_TI_HECC
depends on ARM
tristate "TI High End CAN Controller"
select CAN_RX_OFFLOAD
help
Driver for TI HECC (High End CAN Controller) module found on many
TI devices. The device specifications are available from www.ti.com

2
drivers/net/can/dev/Makefile
View File

@ -9,4 +9,4 @@ can-dev-$(CONFIG_CAN_NETLINK) += bittiming.o
can-dev-$(CONFIG_CAN_NETLINK) += dev.o
can-dev-$(CONFIG_CAN_NETLINK) += length.o
can-dev-$(CONFIG_CAN_NETLINK) += netlink.o
can-dev-$(CONFIG_CAN_NETLINK) += rx-offload.o
can-dev-$(CONFIG_CAN_RX_OFFLOAD) += rx-offload.o

1
drivers/net/can/m_can/Kconfig
View File

@ -1,6 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
menuconfig CAN_M_CAN
tristate "Bosch M_CAN support"
select CAN_RX_OFFLOAD
help
Say Y here if you want support for Bosch M_CAN controller framework.
This is common support for devices that embed the Bosch M_CAN IP.

1
drivers/net/can/spi/mcp251xfd/Kconfig
View File

@ -2,6 +2,7 @@
config CAN_MCP251XFD
tristate "Microchip MCP251xFD SPI CAN controllers"
select CAN_RX_OFFLOAD
select REGMAP
select WANT_DEV_COREDUMP
help