RE: [RFC PATCH] rtnetlink: Fix problem with buffer allocation

-----Original Message-----
From: David Miller [mailto:davem@davemloft.net]
Sent: Friday, February 10, 2012 11:25 AM
To: Rose, Gregory V
Cc: netdev@vger.kernel.org
Subject: Re: [RFC PATCH] rtnetlink: Fix problem with buffer allocation

From: "Rose, Gregory V" <redacted>
Date: Fri, 10 Feb 2012 19:07:15 +0000

quoted

OK, sounds good.  How about I also add a field to indicate the
application buffer size?

How can this help, we already have it.  It's the length field to
the recvmsg() call.

Ah, I hadn't seen that.

Ok.

- Greg

Also, either the user provided a large enough buffer or he didn't.  If
he didn't we return an error to the recvmsg() call, and the user can
increase the buffer size and try again.