netdev - Re: ieee80211_crypt_wep.c:(.text+0x90dd7): undefined reference to `crypto_free

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Date:	Sat, 8 Nov 2008 13:13:30 +0300
From:	Evgeniy Polyakov <zbr@...emap.net>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Jeff Garzik <jgarzik@...ox.com>, Zhu Yi <yi.zhu@...el.com>,
	James Ketrenos <jketreno@...ux.intel.com>,
	netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>
Subject: Re: ieee80211_crypt_wep.c:(.text+0x90dd7): undefined reference to `crypto_free_tfm'

Hi Ingo.

On Sat, Nov 08, 2008 at 08:54:37AM +0100, Ingo Molnar (mingo@...e.hu) wrote:
> not sure whether this has been reported before, but with latest upstream 
> i get this new build failure with certain (rare, randconfig) configs:
> 
>  net/built-in.o: In function `prism2_wep_deinit':
>  ieee80211_crypt_wep.c:(.text+0x90dd7): undefined reference to `crypto_free_tfm'
>  ieee80211_crypt_wep.c:(.text+0x90de3): undefined reference to `crypto_free_tfm'
>  net/built-in.o: In function `prism2_wep_init':
>  ieee80211_crypt_wep.c:(.text+0x90fab): undefined reference to `crypto_alloc_base'
>  ieee80211_crypt_wep.c:(.text+0x90fc9): undefined reference to `crypto_alloc_base'
>  ieee80211_crypt_wep.c:(.text+0x91007): undefined reference to `crypto_free_tfm'
>  ieee80211_crypt_wep.c:(.text+0x91031): undefined reference to `crypto_free_tfm'

The problem is:

> CONFIG_IEEE80211=y
> CONFIG_IEEE80211_CRYPT_WEP=y

> CONFIG_CRYPTO=m

While
config IEEE80211_CRYPT_WEP
        tristate "IEEE 802.11 WEP encryption (802.1x)"
	depends on IEEE80211
	select CRYPTO

Looks like select does not force 'yes' instead of 'module'?

-- 
	Evgeniy Polyakov
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