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Date: Mon, 15 Apr 2013 11:04:37 +0200 From: Johannes Berg <johannes@...solutions.net> To: Tomas Melin <tomas.melin@....fi> Cc: davem@...emloft.net, netdev@...r.kernel.org Subject: Re: Build error v3.9-rc when CONFIG_IPV6 configured as module On Mon, 2013-04-15 at 11:02 +0200, Johannes Berg wrote: > On Sun, 2013-04-14 at 12:45 +0300, Tomas Melin wrote: > > It seems CONFIG_IPV6 cannot be built as a module, using "m"-option > > leads to to the following linking error: > > > > net/built-in.o: In function `ieee80211_unregister_hw': > > (.text+0x10f0e1): undefined reference to `unregister_inet6addr_notifier' > > net/built-in.o: In function `ieee80211_register_hw': > > (.text+0x10f610): undefined reference to `register_inet6addr_notifier' > > make: *** [vmlinux] Error 1 > > > > This happens since the caller net/mac80211/main.c is statically built > > in but net/ipv6/addrconf.c is then built as a module. Is this expected > > behaviour or should it be fixed? > > > > Configuration: v3.9-rc6 with defconfig but ipv6 set to be a module > > instead of built in. > > Oops, I didn't realize that IPv6 could even (still) be built as a > module. I'll add this to mac80211's Kconfig: > depends on IPV6 || !IPV6 > to fix this. Hm, actually, that's not sufficient since there are no no-op versions of these functions when IPv6 isn't built ... needs a bit more. johannes -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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