Re: SCTP config 2.5.70(-bk)

From: Adrian Bunk (
Date: Tue Jun 03 2003 - 08:03:08 EST

On Mon, Jun 02, 2003 at 09:53:04AM +0200, Margit Schubert-While wrote:

> CONFIG_IPV6_SCTP__ is always being set to "y" even though
> not selected (CONFIG_IPV6 not set)

First, this doesn't do any harm since CONFIG_IPV6_SCTP__ alone doensn't
result in anything getting compiled.

But besides, it seems a bit broken.

>From net/sctp/Kconfig:

<-- snip -->


config IPV6_SCTP__
        default y if IPV6=n
        default IPV6 if IPV6

config IP_SCTP
        tristate "The SCTP Protocol (EXPERIMENTAL)"
        depends on IPV6_SCTP__

<-- snip -->

Semantically equivalent is the following for IPV6_SCTP__:

config IPV6_SCTP__
        default y if IPV6=n || IPV6=y
        default m if IPV6=m

If it was intended to disallow a static IP_SCTP with a modular IPV6 it
doesn't work: It's perfectly allowed to set IPV6=n and IP_SCTP=y and
later compile and install a modular IPV6 for the same kernel.

Could someone from the SCTP developers comment on the intentions behind

> Margit



"Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed

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