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skbuff: Fix build with SKB extensions disabled

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We will fail to build with CONFIG_SKB_EXTENSIONS disabled after
8550ff8d8c ("skbuff: Release nfct refcount on napi stolen or re-used
skbs") since there is an unconditionally use of skb_ext_find() without
an appropriate stub. Simply build the code conditionally and properly
guard against both COFNIG_SKB_EXTENSIONS as well as
CONFIG_NET_TC_SKB_EXT being disabled.

Fixes: Fixes: 8550ff8d8c ("skbuff: Release nfct refcount on napi stolen or re-used skbs")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli 2021-07-07 21:10:51 -07:00 • committed by David S. Miller
parent 92c4bed59b
commit 9615fe36b3
1 changed files with 2 additions and 1 deletions
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3
net/core/dev.c
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@ -6010,7 +6010,7 @@ static void gro_list_prepare(const struct list_head *head,
maclen);
diffs |= skb_get_nfct(p) ^ skb_get_nfct(skb);
#if IS_ENABLED(CONFIG_SKB_EXTENSIONS) && IS_ENABLED(CONFIG_NET_TC_SKB_EXT)
if (!diffs) {
struct tc_skb_ext *skb_ext = skb_ext_find(skb, TC_SKB_EXT);
struct tc_skb_ext *p_ext = skb_ext_find(p, TC_SKB_EXT);
@ -6019,6 +6019,7 @@ static void gro_list_prepare(const struct list_head *head,
if (!diffs && unlikely(skb_ext))
diffs |= p_ext->chain ^ skb_ext->chain;
}
#endif
NAPI_GRO_CB(p)->same_flow = !diffs;
}