Re: [PATCH] linux/net/ipv4/arp.c, kernel 2.0.36 (& 2.0.37-pre9)

Alan Cox (alan@lxorguk.ukuu.org.uk)
Mon, 29 Mar 1999 22:25:19 +0100 (BST)

> > The kernel knows perfectly well that its silly to send packets to yourself
> > via external interfaces. This patch isn't needed. The bug is your routing
> > table and trying to set up this configuration.
>
> Alan, this bitten me long time ago, too. External loopback is very
> nice for testing...

There are two reasons Im not putting this in

1. Its a very specialised need. The patch is fine if you need it add it - its
more specialised than other "not needed" patches people keep out of the
main tree.

2. Its on a common code path. Sum the number of times that path is taken
by the number of users of Linux versus the 3 or 4 who actually need it.

There isnt anything wrong with the patch, its just not relevant to the
userbase as a whole and its on a regularly executed path

Alan

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