Michal Sojka 79e19fa79c can: isotp: isotp_ops: fix poll() to not report false EPOLLOUT events ... When using select()/poll()/epoll() with a non-blocking ISOTP socket to wait for when non-blocking write is possible, a false EPOLLOUT event is sometimes returned. This can happen at least after sending a message which must be split to multiple CAN frames. The reason is that isotp_sendmsg() returns -EAGAIN when tx.state is not equal to ISOTP_IDLE and this behavior is not reflected in datagram_poll(), which is used in isotp_ops. This is fixed by introducing ISOTP-specific poll function, which suppresses the EPOLLOUT events in that case. v2: https://lore.kernel.org/all/20230302092812.320643-1-michal.sojka@cvut.cz v1: https://lore.kernel.org/all/20230224010659.48420-1-michal.sojka@cvut.cz https://lore.kernel.org/all/b53a04a2-ba1f-3858-84c1-d3eb3301ae15@hartkopp.net Signed-off-by: Michal Sojka <michal.sojka@cvut.cz> Reported-by: Jakub Jira <jirajak2@fel.cvut.cz> Tested-by: Oliver Hartkopp <socketcan@hartkopp.net> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Fixes: e057dd3fc2 ("can: add ISO 15765-2:2016 transport protocol") Link: https://lore.kernel.org/all/20230331125511.372783-1-michal.sojka@cvut.cz Cc: stable@vger.kernel.org Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>		2023-04-05 10:52:00 +02:00
..
j1939	can: j1939: j1939_tp_tx_dat_new(): fix out-of-bounds memory access	2023-04-05 10:51:57 +02:00
af_can.c	net: af_can: remove useless parameter 'err' in 'can_rx_register()'	2022-12-12 11:41:24 +01:00
af_can.h
bcm.c	can: bcm: bcm_tx_setup(): fix KMSAN uninit-value in vfs_write	2023-03-27 14:40:45 +02:00
gw.c	can: gw: give feedback on missing CGW_FLAGS_CAN_IIF_TX_OK flag	2023-02-02 15:42:10 +01:00
isotp.c	can: isotp: isotp_ops: fix poll() to not report false EPOLLOUT events	2023-04-05 10:52:00 +02:00
Kconfig	net: Kconfig: move the CAN device menu to the "Device Drivers" section	2022-06-11 17:11:02 +02:00
Makefile
proc.c
raw.c	can: raw: use temp variable instead of rolling back config	2023-02-08 21:53:24 +01:00