netdev - Re: [PATCHv3 net-next 3/5] sctp: add SCTP_EXPOSE_POTENTIALLY_FAILED

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Message-ID: <20191025032412.GD4326@localhost.localdomain>
Date:   Fri, 25 Oct 2019 00:24:12 -0300
From:   Marcelo Ricardo Leitner <marcelo.leitner@...il.com>
To:     Xin Long <lucien.xin@...il.com>
Cc:     network dev <netdev@...r.kernel.org>, linux-sctp@...r.kernel.org,
        Neil Horman <nhorman@...driver.com>, davem@...emloft.net,
        David Laight <david.laight@...lab.com>
Subject: Re: [PATCHv3 net-next 3/5] sctp: add
 SCTP_EXPOSE_POTENTIALLY_FAILED_STATE sockopt

On Mon, Oct 14, 2019 at 02:14:46PM +0800, Xin Long wrote:
> 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.
> 
> v1->v2:
>   - no change.
> v2->v3:
>   - return -EINVAL if params.assoc_value > SCTP_PF_EXPOSE_MAX.
>   - define SCTP_EXPOSE_PF_STATE SCTP_EXPOSE_POTENTIALLY_FAILED_STATE.

Hm, why again? Please add it to the changelog, as it's an exception on
the list below.

> 
> Signed-off-by: Xin Long <lucien.xin@...il.com>
> ---
>  include/uapi/linux/sctp.h |  2 ++
>  net/sctp/socket.c         | 79 +++++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 81 insertions(+)
> 
> diff --git a/include/uapi/linux/sctp.h b/include/uapi/linux/sctp.h
> index d99b428..a190e4a 100644
> --- a/include/uapi/linux/sctp.h
> +++ b/include/uapi/linux/sctp.h
> @@ -137,6 +137,8 @@ typedef __s32 sctp_assoc_t;
>  #define SCTP_ASCONF_SUPPORTED	128
>  #define SCTP_AUTH_SUPPORTED	129
>  #define SCTP_ECN_SUPPORTED	130
> +#define SCTP_EXPOSE_POTENTIALLY_FAILED_STATE	131
> +#define SCTP_EXPOSE_PF_STATE	SCTP_EXPOSE_POTENTIALLY_FAILED_STATE
>  
>  /* PR-SCTP policies */
>  #define SCTP_PR_SCTP_NONE	0x0000