On 14.03.2025 19:01:44, haibo.chen@nxp.com wrote:
From: Haibo Chen haibo.chen@nxp.com
After a suspend/resume cycle on a down interface, it will come up as ERROR-ACTIVE.
$ ip -details -s -s a s dev flexcan0 3: flexcan0: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN group default qlen 10 link/can promiscuity 0 allmulti 0 minmtu 0 maxmtu 0 can state STOPPED (berr-counter tx 0 rx 0) restart-ms 1000
$ sudo systemctl suspend
$ ip -details -s -s a s dev flexcan0 3: flexcan0: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN group default qlen 10 link/can promiscuity 0 allmulti 0 minmtu 0 maxmtu 0 can state ERROR-ACTIVE (berr-counter tx 0 rx 0) restart-ms 1000
And only set CAN state to CAN_STATE_ERROR_ACTIVE when resume process has no issue, otherwise keep in CAN_STATE_SLEEPING as suspend did.
Fixes: 4de349e786a3 ("can: flexcan: fix resume function") Cc: stable@vger.kernel.org Signed-off-by: Haibo Chen haibo.chen@nxp.com
Applied to linux-can.
Thanks, Marc