RE: [PATCH] iwlwifi: mei: fix building iwlmei

[Grumbach, Emmanuel]

> 
> From: Arnd Bergmann <arnd@xxxxxxxx>
> 
> 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@xxxxxxxx>
> ---
>  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.
> 
> diff --git a/drivers/net/wireless/intel/iwlwifi/Kconfig
> b/drivers/net/wireless/intel/iwlwifi/Kconfig
> index 85e704283755..a647a406b87b 100644
> --- a/drivers/net/wireless/intel/iwlwifi/Kconfig
> +++ b/drivers/net/wireless/intel/iwlwifi/Kconfig
> @@ -139,6 +139,7 @@ config IWLMEI
>  	tristate "Intel Management Engine communication over WLAN"
>  	depends on INTEL_MEI
>  	depends on PM
> +	depends on CFG80211
>  	help
>  	  Enables the iwlmei kernel module.
> 

FWIW: Luca just merged the exact same patch internally. So
Acked-by: Emmanuel Grumbach <Emmanuel.grumbach@xxxxxxxxx>