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Date:   Thu, 14 May 2020 08:28:20 +0200
From:   Christoph Hellwig <>
To:     Marcelo Ricardo Leitner <>
Cc:     Christoph Hellwig <>,
        "David S. Miller" <>,
        Jakub Kicinski <>,
        Eric Dumazet <>,
        Alexey Kuznetsov <>,
        Hideaki YOSHIFUJI <>,
        Vlad Yasevich <>,
        Neil Horman <>,
        Jon Maloy <>,
        Ying Xue <>,,,,,,,,,,,,,,,
Subject: Re: [PATCH 27/33] sctp: export sctp_setsockopt_bindx

On Wed, May 13, 2020 at 03:00:58PM -0300, Marcelo Ricardo Leitner wrote:
> On Wed, May 13, 2020 at 08:26:42AM +0200, Christoph Hellwig wrote:
> > And call it directly from dlm instead of going through kernel_setsockopt.
> The advantage on using kernel_setsockopt here is that sctp module will
> only be loaded if dlm actually creates a SCTP socket.  With this
> change, sctp will be loaded on setups that may not be actually using
> it. It's a quite big module and might expose the system.

True.  Not that the intent is to kill kernel space callers of setsockopt,
as I plan to remove the set_fs address space override used for it.  So
if always pulling in sctp is not an option for the DLM maintainers we'd
have to do tricks using symbol_get() or similar.

The same would also apply for ipv6, although I'm not sure how common
modular ipv6 is in practice.

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