Re: [PATCH] net: i40e: avoid unused function warnings

From: Jeff Kirsher
Date: Wed Jan 20 2016 - 17:17:37 EST


On Wed, 2016-01-20 at 11:42 +0100, Arnd Bergmann wrote:
> The addition of the geneve tunnel offload code left a couple
> of functions unconditionally defined but empty whenever CONFIG_VXLAN
> and CONFIG_GENEVE are disabled. gcc warns about this:
>
> i40e_main.c:7049:13: warning: 'i40e_sync_udp_filters_subtask' defined
> but not used [-Wunused-function]
> i40e_main.c:8516:13: warning: 'i40e_add_vxlan_port' defined but not
> used [-Wunused-function]
> i40e_main.c:8561:13: warning: 'i40e_del_vxlan_port' defined but not
> used [-Wunused-function]
> i40e_main.c:8596:13: warning: 'i40e_add_geneve_port' defined but not
> used [-Wunused-function]
> i40e_main.c:8643:13: warning: 'i40e_del_geneve_port' defined but not
> used [-Wunused-function]
>
> This moves the #ifdef statements to the outside of the affected
> functions, which avoids the warnings.
>
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> Fixes: 6a899024058d ("i40e: geneve tunnel offload support")
> ---
> This is a harmless regression against v4.4, found on ARM randconfig
> builds

Thanks Arnd, I already have a patch from Eric Dumazet and Alex Duyck to
resolve this issue.

Dave- I plan on pushing the fix later today to net.

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