linux-kernel - [PATCH 1/1 net-next] ipv4: ip_frag

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Message-Id: <1415130097-14490-1-git-send-email-fabf@skynet.be>
Date:	Tue,  4 Nov 2014 20:41:37 +0100
From:	Fabian Frederick <fabf@...net.be>
To:	linux-kernel@...r.kernel.org
Cc:	Fabian Frederick <fabf@...net.be>,
	"David S. Miller" <davem@...emloft.net>,
	Alexey Kuznetsov <kuznet@....inr.ac.ru>,
	James Morris <jmorris@...ei.org>,
	Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
	Patrick McHardy <kaber@...sh.net>, netdev@...r.kernel.org
Subject: [PATCH 1/1 net-next] ipv4: ip_frag_queue function clean-up

-remove unnecessary else after break
-declare free_it sk_buff * only once (like prev and next)

Signed-off-by: Fabian Frederick <fabf@...net.be>
---
 net/ipv4/ip_fragment.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 2811cc1..153c402 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -317,7 +317,7 @@ static int ip_frag_reinit(struct ipq *qp)
 /* Add new segment to existing queue. */
 static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
 {
-	struct sk_buff *prev, *next;
+	struct sk_buff *prev, *next, *free_it;
 	struct net_device *dev;
 	int flags, offset;
 	int ihl, end;
@@ -432,23 +432,23 @@ found:
 			if (next->ip_summed != CHECKSUM_UNNECESSARY)
 				next->ip_summed = CHECKSUM_NONE;
 			break;
-		} else {
-			struct sk_buff *free_it = next;
+		}
 
-			/* Old fragment is completely overridden with
-			 * new one drop it.
-			 */
-			next = next->next;
+		free_it = next;
 
-			if (prev)
-				prev->next = next;
-			else
-				qp->q.fragments = next;
+		/* Old fragment is completely overridden with
+		 * new one drop it.
+		 */
+		next = next->next;
 
-			qp->q.meat -= free_it->len;
-			sub_frag_mem_limit(&qp->q, free_it->truesize);
-			kfree_skb(free_it);
-		}
+		if (prev)
+			prev->next = next;
+		else
+			qp->q.fragments = next;
+
+		qp->q.meat -= free_it->len;
+		sub_frag_mem_limit(&qp->q, free_it->truesize);
+		kfree_skb(free_it);
 	}
 
 	FRAG_CB(skb)->offset = offset;
-- 
1.9.3

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