netdev - Re: [PATCH net-next 5/5] sctp: add spt_pathcpthld in struct sctp

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Message-Id: <20190910.192755.717621354475214603.davem@davemloft.net>
Date:   Tue, 10 Sep 2019 19:27:55 +0200 (CEST)
From:   David Miller <davem@...emloft.net>
To:     lucien.xin@...il.com
Cc:     netdev@...r.kernel.org, linux-sctp@...r.kernel.org,
        marcelo.leitner@...il.com, nhorman@...driver.com
Subject: Re: [PATCH net-next 5/5] sctp: add spt_pathcpthld in struct
 sctp_paddrthlds

From: Xin Long <lucien.xin@...il.com>
Date: Mon,  9 Sep 2019 15:56:51 +0800

> diff --git a/include/uapi/linux/sctp.h b/include/uapi/linux/sctp.h
> index a15cc28..dfd81e1 100644
> --- a/include/uapi/linux/sctp.h
> +++ b/include/uapi/linux/sctp.h
> @@ -1069,6 +1069,7 @@ struct sctp_paddrthlds {
>  	struct sockaddr_storage spt_address;
>  	__u16 spt_pathmaxrxt;
>  	__u16 spt_pathpfthld;
> +	__u16 spt_pathcpthld;
>  };
>  
>  /*

As pointed out you can't add things to this structure without breaking existing
binaries.