linux-kernel - [PATCH] CONFIG_NET=n - lots of link time errors

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Message-ID: <Pine.LNX.4.64.0707211817490.21737@fbirervta.pbzchgretzou.qr>
Date:	Sat, 21 Jul 2007 18:27:38 +0200 (CEST)
From:	Jan Engelhardt <jengelh@...putergmbh.de>
To:	netdev@...r.kernel.org
cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] CONFIG_NET=n - lots of link time errors

Hi,

enable everything from Drivers > Networking, but deselect CONFIG_NET. 
This throws a ton of linking errors (when using CONFIG_MODULES=n), and 
probably unresolved symbols (MODULES=m). Happens in current -git, but I 
believe it dates much farther back, because this is imo just a simple 
Kconfig issue. I think we need to hand out a big 'if NET'-endif block in 
drivers/net/Kconfig. The full error log is like 120 K in size, and I 
doubt it would make sense to post it, given instructions above. I'll 
attach my (i386) .config for anyone to see it for themselves, and a 
patch proposal right below. Is it ok to add 'depends on NET' on 
NETDEVICES, or are there some network devices that can live without 
CONFIG_NET?

Thanks,
	Jan
===

Enabling drivers from "Devices > Networking" (in menuconfig), for 
example SLIP and/or PLIP, throws link time errors when CONFIG_NET itself 
is =n. Have CONFIG_NETDEVICES depend on CONFIG_NET.

Signed-off-by: Jan Engelhardt <jengelh@....de>

---
 drivers/net/Kconfig |    1 +
 1 file changed, 1 insertion(+)

Index: linux-2.6.23/drivers/net/Kconfig
===================================================================
--- linux-2.6.23.orig/drivers/net/Kconfig
+++ linux-2.6.23/drivers/net/Kconfig
@@ -5,6 +5,7 @@

 menuconfig NETDEVICES
 	default y if UML
+	depends on NET
 	bool "Network device support"
 	---help---
 	  You can say N here if you don't intend to connect your Linux box to
Download attachment "net.config" of type "APPLICATION/X-CONFIG" (19173 bytes)