linux-kernel - [PATCH 5.4 12/39] staging/octeon: fix up merge error

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Date:   Sun,  6 Dec 2020 12:17:16 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Randy Dunlap <rdunlap@...radead.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Pablo Neira Ayuso <pablo@...filter.org>
Subject: [PATCH 5.4 12/39] staging/octeon: fix up merge error

From: Randy Dunlap <rdunlap@...radead.org>

commit 673b41e04a035d760bc0aff83fa9ee24fd9c2779 upstream.

There's a semantic conflict in the Octeon staging network driver, which
used the skb_reset_tc() function to reset skb state when re-using an
skb.  But that inline helper function was removed in mainline by commit
2c64605b590e ("net: Fix CONFIG_NET_CLS_ACT=n and
CONFIG_NFT_FWD_NETDEV={y, m} build").

Fix it by using skb_reset_redirect() instead.  Also move it out of the

This code path only ends up triggering if REUSE_SKBUFFS_WITHOUT_FREE is
enabled, which in turn only happens if you don't have CONFIG_NETFILTER
configured.  Which was how this wasn't caught by the usual allmodconfig
builds.

Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Pablo Neira Ayuso <pablo@...filter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/staging/octeon/ethernet-tx.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/staging/octeon/ethernet-tx.c
+++ b/drivers/staging/octeon/ethernet-tx.c
@@ -352,10 +352,10 @@ int cvm_oct_xmit(struct sk_buff *skb, st
 	skb_dst_set(skb, NULL);
 	skb_ext_reset(skb);
 	nf_reset_ct(skb);
+	skb_reset_redirect(skb);

 #ifdef CONFIG_NET_SCHED
 	skb->tc_index = 0;
-	skb_reset_tc(skb);
 #endif /* CONFIG_NET_SCHED */
 #endif /* REUSE_SKBUFFS_WITHOUT_FREE */