From 7373f03ae79c5be00940990b45b9badd9d83dd85 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Fri, 29 Oct 2021 13:30:51 +0200
Subject: [PATCH] ifb: fix building without CONFIG_NET_CLS_ACT
Git-commit: 7444d706be31753f65052c7f6325fc8470cc1789
Patch-mainline: v5.16-rc1
References: stable-5.14.19

commit 7444d706be31753f65052c7f6325fc8470cc1789 upstream.

The driver no longer depends on this option, but it fails to
build if it's disabled because the skb->tc_skip_classify is
hidden behind an #ifdef:

drivers/net/ifb.c:81:8: error: no member named 'tc_skip_classify' in 'struct sk_buff'
                skb->tc_skip_classify = 1;

Use the same #ifdef around the assignment.

Fixes: 046178e726c2 ("ifb: Depend on netfilter alternatively to tc")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/net/ifb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ifb.c b/drivers/net/ifb.c
index e9258a9f3702..31bc02421dd4 100644
--- a/drivers/net/ifb.c
+++ b/drivers/net/ifb.c
@@ -76,7 +76,9 @@ static void ifb_ri_tasklet(struct tasklet_struct *t)
 
 	while ((skb = __skb_dequeue(&txp->tq)) != NULL) {
 		skb->redirected = 0;
+#ifdef CONFIG_NET_CLS_ACT
 		skb->tc_skip_classify = 1;
+#endif
 
 		u64_stats_update_begin(&txp->tsync);
 		txp->tx_packets++;
-- 
2.26.2