From patchwork Thu Oct 27 19:01:46 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Wunderlich X-Patchwork-Id: 687884 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3t4bqD3NwSz9t1C for ; Fri, 28 Oct 2016 06:02:16 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S942687AbcJ0TCE (ORCPT ); Thu, 27 Oct 2016 15:02:04 -0400 Received: from packetmixer.de ([79.140.42.25]:38354 "EHLO mail.mail.packetmixer.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S942661AbcJ0TB7 (ORCPT ); Thu, 27 Oct 2016 15:01:59 -0400 Received: from kero.packetmixer.de (p4FFE5DCC.dip0.t-ipconnect.de [79.254.93.204]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.mail.packetmixer.de (Postfix) with ESMTPSA id 0AD231F0029; Thu, 27 Oct 2016 21:01:59 +0200 (CEST) From: Simon Wunderlich To: davem@davemloft.net Cc: netdev@vger.kernel.org, b.a.t.m.a.n@lists.open-mesh.org, Sven Eckelmann , Simon Wunderlich Subject: [PATCH 13/17] batman-adv: Remove needless init of variables on stack Date: Thu, 27 Oct 2016 21:01:46 +0200 Message-Id: <20161027190150.7880-14-sw@simonwunderlich.de> X-Mailer: git-send-email 2.10.1 In-Reply-To: <20161027190150.7880-1-sw@simonwunderlich.de> References: <20161027190150.7880-1-sw@simonwunderlich.de> Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Sven Eckelmann Some variables are overwritten immediatelly in a functions. These don't have to be initialized to a specific value on the stack because the value will be overwritten before they will be used anywhere. Signed-off-by: Sven Eckelmann Signed-off-by: Simon Wunderlich --- net/batman-adv/bat_v.c | 2 +- net/batman-adv/bat_v_ogm.c | 4 ++-- net/batman-adv/fragmentation.c | 4 ++-- net/batman-adv/gateway_client.c | 2 +- net/batman-adv/originator.c | 8 ++++---- net/batman-adv/send.c | 2 +- 6 files changed, 11 insertions(+), 11 deletions(-) diff --git a/net/batman-adv/bat_v.c b/net/batman-adv/bat_v.c index e79f6f0..57c795c 100644 --- a/net/batman-adv/bat_v.c +++ b/net/batman-adv/bat_v.c @@ -787,7 +787,7 @@ static bool batadv_v_gw_is_eligible(struct batadv_priv *bat_priv, struct batadv_orig_node *curr_gw_orig, struct batadv_orig_node *orig_node) { - struct batadv_gw_node *curr_gw = NULL, *orig_gw = NULL; + struct batadv_gw_node *curr_gw, *orig_gw = NULL; u32 gw_throughput, orig_throughput, threshold; bool ret = false; diff --git a/net/batman-adv/bat_v_ogm.c b/net/batman-adv/bat_v_ogm.c index 1aeeadc..61ff5f8 100644 --- a/net/batman-adv/bat_v_ogm.c +++ b/net/batman-adv/bat_v_ogm.c @@ -401,7 +401,7 @@ static int batadv_v_ogm_metric_update(struct batadv_priv *bat_priv, struct batadv_hard_iface *if_incoming, struct batadv_hard_iface *if_outgoing) { - struct batadv_orig_ifinfo *orig_ifinfo = NULL; + struct batadv_orig_ifinfo *orig_ifinfo; struct batadv_neigh_ifinfo *neigh_ifinfo = NULL; bool protection_started = false; int ret = -EINVAL; @@ -486,7 +486,7 @@ static bool batadv_v_ogm_route_update(struct batadv_priv *bat_priv, struct batadv_hard_iface *if_outgoing) { struct batadv_neigh_node *router = NULL; - struct batadv_orig_node *orig_neigh_node = NULL; + struct batadv_orig_node *orig_neigh_node; struct batadv_neigh_node *orig_neigh_router = NULL; struct batadv_neigh_ifinfo *router_ifinfo = NULL, *neigh_ifinfo = NULL; u32 router_throughput, neigh_throughput; diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c index 0934730..1b2f5b9 100644 --- a/net/batman-adv/fragmentation.c +++ b/net/batman-adv/fragmentation.c @@ -252,7 +252,7 @@ batadv_frag_merge_packets(struct hlist_head *chain) { struct batadv_frag_packet *packet; struct batadv_frag_list_entry *entry; - struct sk_buff *skb_out = NULL; + struct sk_buff *skb_out; int size, hdr_size = sizeof(struct batadv_frag_packet); /* Remove first entry, as this is the destination for the rest of the @@ -352,7 +352,7 @@ bool batadv_frag_skb_fwd(struct sk_buff *skb, struct batadv_orig_node *orig_node_src) { struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface); - struct batadv_orig_node *orig_node_dst = NULL; + struct batadv_orig_node *orig_node_dst; struct batadv_neigh_node *neigh_node = NULL; struct batadv_frag_packet *packet; u16 total_size; diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c index de055d6..69bfe98 100644 --- a/net/batman-adv/gateway_client.c +++ b/net/batman-adv/gateway_client.c @@ -704,7 +704,7 @@ bool batadv_gw_out_of_range(struct batadv_priv *bat_priv, { struct batadv_neigh_node *neigh_curr = NULL; struct batadv_neigh_node *neigh_old = NULL; - struct batadv_orig_node *orig_dst_node = NULL; + struct batadv_orig_node *orig_dst_node; struct batadv_gw_node *gw_node = NULL; struct batadv_gw_node *curr_gw = NULL; struct batadv_neigh_ifinfo *curr_ifinfo, *old_ifinfo; diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c index 5f3bfc4..6af87c9 100644 --- a/net/batman-adv/originator.c +++ b/net/batman-adv/originator.c @@ -364,7 +364,7 @@ struct batadv_orig_ifinfo * batadv_orig_ifinfo_new(struct batadv_orig_node *orig_node, struct batadv_hard_iface *if_outgoing) { - struct batadv_orig_ifinfo *orig_ifinfo = NULL; + struct batadv_orig_ifinfo *orig_ifinfo; unsigned long reset_time; spin_lock_bh(&orig_node->neigh_list_lock); @@ -520,7 +520,7 @@ batadv_hardif_neigh_create(struct batadv_hard_iface *hard_iface, const u8 *neigh_addr) { struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface); - struct batadv_hardif_neigh_node *hardif_neigh = NULL; + struct batadv_hardif_neigh_node *hardif_neigh; spin_lock_bh(&hard_iface->neigh_list_lock); @@ -563,7 +563,7 @@ static struct batadv_hardif_neigh_node * batadv_hardif_neigh_get_or_create(struct batadv_hard_iface *hard_iface, const u8 *neigh_addr) { - struct batadv_hardif_neigh_node *hardif_neigh = NULL; + struct batadv_hardif_neigh_node *hardif_neigh; /* first check without locking to avoid the overhead */ hardif_neigh = batadv_hardif_neigh_get(hard_iface, neigh_addr); @@ -683,7 +683,7 @@ batadv_neigh_node_get_or_create(struct batadv_orig_node *orig_node, struct batadv_hard_iface *hard_iface, const u8 *neigh_addr) { - struct batadv_neigh_node *neigh_node = NULL; + struct batadv_neigh_node *neigh_node; /* first check without locking to avoid the overhead */ neigh_node = batadv_neigh_node_get(orig_node, hard_iface, neigh_addr); diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c index 8d4e1f5..e1e9136 100644 --- a/net/batman-adv/send.c +++ b/net/batman-adv/send.c @@ -562,7 +562,7 @@ int batadv_add_bcast_packet_to_list(struct batadv_priv *bat_priv, const struct sk_buff *skb, unsigned long delay) { - struct batadv_hard_iface *primary_if = NULL; + struct batadv_hard_iface *primary_if; struct batadv_forw_packet *forw_packet; struct batadv_bcast_packet *bcast_packet; struct sk_buff *newskb;