Re: [PATCH net-next v2] net: devmem: return EMSGSIZE on type mismatch

[Stanislav Fomichev]

On 08/10, Mina Almasry wrote:
> When a devmem payload mixes with a standard page payload, return
> -EMSGSIZE instead of -EFAULT. This enables tcp_sendmsg to seamlessly
> fall back to creating a new segment instead of failing the socket send.
> 
> Fixes: bd61848900bff ("net: devmem: Implement TX path")
> Cc: Pavel Begunkov <asml.silence@xxxxxxxxx>
> Cc: Stanislav Fomichev <sdf@xxxxxxxxxxx>
> Cc: Bobby Eshleman <bobbyeshleman@xxxxxxxxx>
> Signed-off-by: Mina Almasry <almasrymina@xxxxxxxxxx>
> Reviewed-by: Pavel Begunkov <asml.silence@xxxxxxxxx>
> Reviewed-by: Bobby Eshleman <bobbyeshleman@xxxxxxxx>

Acked-by: Stanislav Fomichev <sdf@xxxxxxxxxxx>

(matches my original suggestion on
https://lore.kernel.org/netdev/ameLB_goNrMbscXO@xxxxxxxxxxxxxxxxxxxxxxxxxxx/)