linux-stable/include/linux/can
Vincent Mailhol 7d4a101c0b can: dev: add sanity check in can_set_static_ctrlmode()
Previous patch removed can_priv::ctrlmode_static to replace it with
can_get_static_ctrlmode().

A condition sine qua non for this to work is that the controller
static modes should never be set in can_priv::ctrlmode_supported
(c.f. the comment on can_priv::ctrlmode_supported which states that it
is for "options that can be *modified* by netlink"). Also, this
condition is already correctly fulfilled by all existing drivers
which rely on the ctrlmode_static feature.

Nonetheless, we added an extra safeguard in can_set_static_ctrlmode()
to return an error value and to warn the developer who would be
adventurous enough to set to static a given feature that is already
set to supported.

The drivers which rely on the static controller mode are then updated
to check the return value of can_set_static_ctrlmode().

Link: https://lore.kernel.org/all/20211213160226.56219-3-mailhol.vincent@wanadoo.fr
Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-05 12:09:05 +01:00
..
dev can: remove obsolete get_canfd_dlc() macro 2020-11-20 09:43:30 +01:00
platform can: flexcan: add platform data header 2021-07-25 11:36:29 +02:00
bittiming.h can: bittiming: replace CAN units with the generic ones from linux/units.h 2021-12-08 10:12:58 +01:00
can-ml.h net: introduce CAN specific pointer in the struct net_device 2021-02-24 14:32:15 -08:00
core.h can: remove obsolete version strings 2020-10-12 10:06:39 +02:00
dev.h can: dev: add sanity check in can_set_static_ctrlmode() 2022-01-05 12:09:05 +01:00
led.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
length.h can: length: can_skb_get_frame_len(): introduce function to get data length of frame in data link layer 2021-01-14 08:43:42 +01:00
rx-offload.h can: rx-offload: can_rx_offload_threaded_irq_finish(): add new function to be called from threaded interrupt 2021-07-25 11:36:25 +02:00
skb.h can: do not increase tx_bytes statistics for RTR frames 2022-01-05 12:09:05 +01:00