MSG_SYN and MSG_DONTWAIT are not properly supported. We have no way to notify about (E)TP errors. So, remove it for now, until proper way is implemented. Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx> --- Documentation/networking/j1939.txt | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/Documentation/networking/j1939.txt b/Documentation/networking/j1939.txt index 9e9d14dc1534..138956371196 100644 --- a/Documentation/networking/j1939.txt +++ b/Documentation/networking/j1939.txt @@ -255,15 +255,7 @@ This file contains send(2), sendto(2) and sendmsg(2) take a 'flags' argument. J1939 interpretes these flags during outgoing traffic: - * MSG_DONTWAIT determines nonblocking operation. When a packet must wait for - any reason, -EAGAIN is returned. - - * MSG_SYN - Packets flagged with MSG_SYN will wait for all pending packets on a socket - to be sent before trying to send. This means that if a socket just started - a Transport Protocol session, a packet with MSG_SYN will wait for that - session to complete before proceeding. - Traffic without MSG_SYN (on that very same socket) will still continue. + * MSG_DONTWAIT, i.e. non-blocking operation is not supported for now. 4.1.2 SCM_J1939_DEST_ADDR & SCM_J1939_DEST_NAME -- 2.20.1
