From patchwork Sat Jan 9 13:20:13 2016
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Antonio Quartulli
X-Patchwork-Id: 4897
Return-Path:
Received-SPF: Permerror (SPF Permanent Error: Two or more type TXT spf
records found.) identity=mailfrom; client-ip=5.148.176.57;
helo=s1.neomailbox.net;
envelope-from=a@unstable.cc; receiver=b.a.t.m.a.n@lists.open-mesh.org
Authentication-Results: open-mesh.org; dmarc=none header.from=unstable.cc
Received: from s1.neomailbox.net (s1.neomailbox.net [5.148.176.57])
by open-mesh.org (Postfix) with ESMTPS id 2DE4181AB7
for ;
Sat, 9 Jan 2016 14:22:45 +0100 (CET)
From: Antonio Quartulli
To: davem@davemloft.net
Date: Sat, 9 Jan 2016 21:20:13 +0800
Message-Id: <1452345621-15908-9-git-send-email-a@unstable.cc>
In-Reply-To: <1452345621-15908-1-git-send-email-a@unstable.cc>
References: <1452345621-15908-1-git-send-email-a@unstable.cc>
Cc: netdev@vger.kernel.org, b.a.t.m.a.n@lists.open-mesh.org,
Antonio Quartulli ,
Markus Elfring ,
Marek Lindner
Subject: [B.A.T.M.A.N.] [PATCH 08/16] batman-adv: Delete unnecessary checks
before the function call "kfree_skb"
X-BeenThere: b.a.t.m.a.n@lists.open-mesh.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: The list for a Better Approach To Mobile Ad-hoc Networking
List-Unsubscribe: ,
List-Archive:
List-Post:
List-Help:
List-Subscribe: ,
X-List-Received-Date: Sat, 09 Jan 2016 13:22:45 -0000
From: Markus Elfring
The kfree_skb() function tests whether its argument is NULL and then
returns immediately. Thus the test around the calls is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring
Signed-off-by: Marek Lindner
Signed-off-by: Antonio Quartulli
---
net/batman-adv/main.c | 2 +-
net/batman-adv/network-coding.c | 4 +---
net/batman-adv/send.c | 3 +--
3 files changed, 3 insertions(+), 6 deletions(-)
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 95fd418e9567..5b678f3471fc 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -1184,7 +1184,7 @@ void batadv_tvlv_unicast_send(struct batadv_priv *bat_priv, u8 *src,
ret = true;
out:
- if (skb && !ret)
+ if (!ret)
kfree_skb(skb);
if (orig_node)
batadv_orig_node_free_ref(orig_node);
diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
index f5276be2c77c..c98b0ab85449 100644
--- a/net/batman-adv/network-coding.c
+++ b/net/batman-adv/network-coding.c
@@ -244,9 +244,7 @@ static void batadv_nc_path_free_ref(struct batadv_nc_path *nc_path)
*/
static void batadv_nc_packet_free(struct batadv_nc_packet *nc_packet)
{
- if (nc_packet->skb)
- kfree_skb(nc_packet->skb);
-
+ kfree_skb(nc_packet->skb);
batadv_nc_path_free_ref(nc_packet->nc_path);
kfree(nc_packet);
}
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index f664324805eb..782fa33ec296 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -407,8 +407,7 @@ void batadv_schedule_bat_ogm(struct batadv_hard_iface *hard_iface)
static void batadv_forw_packet_free(struct batadv_forw_packet *forw_packet)
{
- if (forw_packet->skb)
- kfree_skb(forw_packet->skb);
+ kfree_skb(forw_packet->skb);
if (forw_packet->if_incoming)
batadv_hardif_free_ref(forw_packet->if_incoming);
if (forw_packet->if_outgoing)