From: Willem de Bruijn <willemb@google.com>
To: Chuck Ebbert <cebbert.lkml@gmail.com>
Cc: Network Development <netdev@vger.kernel.org>
Subject: Re: LTP recv/recvmsg tests failing on 3.17
Date: Tue, 23 Sep 2014 12:24:57 -0400 [thread overview]
Message-ID: <CA+FuTSeyzMayJ6zR8KBpt_Wu-orCowMDtTOwXxp84-RobBZ1xA@mail.gmail.com> (raw)
In-Reply-To: <20140923103933.1b5fb88b@as>
> But I was also wondering why we return EAGAIN here for no data waiting,
> when we return EINVAL for the same case with a different type of data.
> There's no spec and it's not documented, so I guess the answer is "it's
> always been that way."
EAGAIN is the common response. I don't know why TCP urgent
data returns EINVAL. It is unusual enough that the relevant line
in tcp_recv_urg explicitly comments on it:
return -EINVAL; /* Yes this is right ! */
next prev parent reply other threads:[~2014-09-23 16:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-23 14:11 LTP recv/recvmsg tests failing on 3.17 Chuck Ebbert
2014-09-23 14:57 ` Willem de Bruijn
2014-09-23 15:39 ` Chuck Ebbert
2014-09-23 16:24 ` Willem de Bruijn [this message]
2014-09-23 15:59 ` David Miller
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