linux-kernel - Re: [PATCH] iwlwifi: mei: fix building iwlmei

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Date:   Wed, 16 Mar 2022 20:53:19 +0200
From:   Kalle Valo <kvalo@...nel.org>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Luca Coelho <luciano.coelho@...el.com>,
        Arnd Bergmann <arnd@...db.de>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Ayala Beker <ayala.beker@...el.com>,
        Emmanuel Grumbach <emmanuel.grumbach@...el.com>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] iwlwifi: mei: fix building iwlmei

Arnd Bergmann <arnd@...nel.org> writes:

> From: Arnd Bergmann <arnd@...db.de>
>
> Building iwlmei without CONFIG_CFG80211 causes a link-time warning:
>
> ld.lld: error: undefined symbol: ieee80211_hdrlen
>>>> referenced by net.c
>>>>               net/wireless/intel/iwlwifi/mei/net.o:(iwl_mei_tx_copy_to_csme)
>>>> in archive drivers/built-in.a
>
> Add an explicit dependency to avoid this. In theory it should not
> be needed here, but it also seems pointless to allow IWLMEI
> for configurations without CFG80211.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  drivers/net/wireless/intel/iwlwifi/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
>
> I see this warning on 5.17-rc8, but did not test it on linux-next,
> which may already have a fix.

I just sent the last pull request to v5.17. Luca, should I take this to
wireless-next? Ack?

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