Subject: Re: linux-next: build failure after merge of the net tree

From: Stephen Rothwell <[email-masked]>
Date: Thu, 8 Jul 2021 14:01:28 +1000

Hi all,

On Wed, 7 Jul 2021 09:11:13 +1000 Stephen Rothwell <[email-masked]> wrote:
>
> After merging the net tree, today's linux-next build (powerpc
> ppc64_defconfig) failed like this:
> 
> net/core/dev.c: In function 'gro_list_prepare':
> net/core/dev.c:6015:51: error: 'TC_SKB_EXT' undeclared (first use in this function)
>  6015 |    struct tc_skb_ext *skb_ext = skb_ext_find(skb, TC_SKB_EXT);
>       |                                                   ^~~~~~~~~~
> net/core/dev.c:6015:51: note: each undeclared identifier is reported only once for each function it appears in
> net/core/dev.c:6020:19: error: invalid use of undefined type 'struct tc_skb_ext'
>  6020 |     diffs |= p_ext->chain ^ skb_ext->chain;
>       |                   ^~
> net/core/dev.c:6020:36: error: invalid use of undefined type 'struct tc_skb_ext'
>  6020 |     diffs |= p_ext->chain ^ skb_ext->chain;
>       |                                    ^~
> 
> Caused by commit
> 
>   8550ff8d8c75 ("skbuff: Release nfct refcount on napi stolen or re-used skbs")
> 
> I have used the net tree from next-20210706 for today.

I am still getting this error.  The definition of TC_SKB_EXT depend on
CONFIG_NET_TC_SKB_EXT.

-- 
Cheers,
Stephen Rothwell