netdev - [PATCH net-next 2/8] netfilter: ecache: remove another indent level

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Date:   Mon, 30 Aug 2021 11:38:46 +0200
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     netfilter-devel@...r.kernel.org
Cc:     davem@...emloft.net, netdev@...r.kernel.org, kuba@...nel.org
Subject: [PATCH net-next 2/8] netfilter: ecache: remove another indent level

From: Florian Westphal <fw@...len.de>

... by changing:

if (unlikely(ret < 0 || missed)) {
	if (ret < 0) {
to
if (likely(ret >= 0 && !missed))
	goto out;

if (ret < 0) {

After this nf_conntrack_eventmask_report and nf_ct_deliver_cached_events
look pretty much the same, next patch moves common code to a helper.

This patch has no effect on generated code.

Signed-off-by: Florian Westphal <fw@...len.de>
Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
 net/netfilter/nf_conntrack_ecache.c | 34 +++++++++++++++--------------
 1 file changed, 18 insertions(+), 16 deletions(-)

diff --git a/net/netfilter/nf_conntrack_ecache.c b/net/netfilter/nf_conntrack_ecache.c
index 3f1e0add58bc..127a0fa6ae43 100644
--- a/net/netfilter/nf_conntrack_ecache.c
+++ b/net/netfilter/nf_conntrack_ecache.c
@@ -165,25 +165,27 @@ int nf_conntrack_eventmask_report(unsigned int eventmask, struct nf_conn *ct,
 		goto out_unlock;
 
 	ret = notify->fcn(eventmask | missed, &item);
-	if (unlikely(ret < 0 || missed)) {
-		spin_lock_bh(&ct->lock);
-		if (ret < 0) {
-			/* This is a destroy event that has been
-			 * triggered by a process, we store the PORTID
-			 * to include it in the retransmission.
-			 */
-			if (eventmask & (1 << IPCT_DESTROY)) {
-				if (e->portid == 0 && portid != 0)
-					e->portid = portid;
-				e->state = NFCT_ECACHE_DESTROY_FAIL;
-			} else {
-				e->missed |= eventmask;
-			}
+	if (likely(ret >= 0 && !missed))
+		goto out_unlock;
+
+	spin_lock_bh(&ct->lock);
+	if (ret < 0) {
+		/* This is a destroy event that has been
+		 * triggered by a process, we store the PORTID
+		 * to include it in the retransmission.
+		 */
+		if (eventmask & (1 << IPCT_DESTROY)) {
+			if (e->portid == 0 && portid != 0)
+				e->portid = portid;
+			e->state = NFCT_ECACHE_DESTROY_FAIL;
 		} else {
-			e->missed &= ~missed;
+			e->missed |= eventmask;
 		}
-		spin_unlock_bh(&ct->lock);
+	} else {
+		e->missed &= ~missed;
 	}
+	spin_unlock_bh(&ct->lock);
+
 out_unlock:
 	rcu_read_unlock();
 	return ret;
-- 
2.20.1