netdev - RE: [PATCHv2 net-next 3/5] sctp: add SCTP_EXPOSE_POTENTIALLY_FAILED

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Message-ID: <60a7f76bd5f743dd8d057b32a4456ebd@AcuMS.aculab.com>
Date:   Tue, 8 Oct 2019 13:02:57 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'Xin Long' <lucien.xin@...il.com>,
        network dev <netdev@...r.kernel.org>,
        "linux-sctp@...r.kernel.org" <linux-sctp@...r.kernel.org>
CC:     Marcelo Ricardo Leitner <marcelo.leitner@...il.com>,
        Neil Horman <nhorman@...driver.com>,
        "davem@...emloft.net" <davem@...emloft.net>
Subject: RE: [PATCHv2 net-next 3/5] sctp: add
 SCTP_EXPOSE_POTENTIALLY_FAILED_STATE sockopt

From: Xin Long
> Sent: 08 October 2019 12:25
> 
> This is a sockopt defined in section 7.3 of rfc7829: "Exposing
> the Potentially Failed Path State", by which users can change
> pf_expose per sock and asoc.

If I read these patches correctly the default for this sockopt in 'enabled'.
Doesn't this mean that old application binaries will receive notifications
that they aren't expecting?

I'd have thought that applications would be required to enable it.

	David

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