[NETFILTER]: Remove useless comparisons before assignments

Remove unnecessary if() constructs before assignment.
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv6/netfilter/ip6t_HL.c

@@ -52,7 +52,6 @@ static unsigned int ip6t_hl_target(struct sk_buff **pskb,
 			break;
 	}
 
-	if (new_hl != ip6h->hop_limit)
 	ip6h->hop_limit = new_hl;
 
 	return IP6T_CONTINUE;

net/netfilter/xt_CLASSIFY.c

@@ -33,9 +33,7 @@ target(struct sk_buff **pskb,
 {
 	const struct xt_classify_target_info *clinfo = targinfo;
 
-	if ((*pskb)->priority != clinfo->priority)
 	(*pskb)->priority = clinfo->priority;
-
 	return XT_CONTINUE;
 }
 

net/netfilter/xt_CONNMARK.c

@@ -78,7 +78,6 @@ target(struct sk_buff **pskb,
 		case XT_CONNMARK_RESTORE:
 			mark = (*pskb)->mark;
 			diff = (*ctmark ^ mark) & markinfo->mask;
-			if (diff != 0)
 			(*pskb)->mark = mark ^ diff;
 			break;
 		}

net/netfilter/xt_CONNSECMARK.c

@@ -41,7 +41,6 @@ static void secmark_save(struct sk_buff *skb)
 
 		connsecmark = nf_ct_get_secmark(skb, &ctinfo);
 		if (connsecmark && !*connsecmark)
-			if (*connsecmark != skb->secmark)
 			*connsecmark = skb->secmark;
 	}
 }
@@ -58,7 +57,6 @@ static void secmark_restore(struct sk_buff *skb)
 
 		connsecmark = nf_ct_get_secmark(skb, &ctinfo);
 		if (connsecmark && *connsecmark)
-			if (skb->secmark != *connsecmark)
 			skb->secmark = *connsecmark;
 	}
 }

net/netfilter/xt_MARK.c

@@ -31,9 +31,7 @@ target_v0(struct sk_buff **pskb,
 {
 	const struct xt_mark_target_info *markinfo = targinfo;
 
-	if((*pskb)->mark != markinfo->mark)
 	(*pskb)->mark = markinfo->mark;
-
 	return XT_CONTINUE;
 }
 
@@ -62,9 +60,7 @@ target_v1(struct sk_buff **pskb,
 		break;
 	}
 
-	if((*pskb)->mark != mark)
 	(*pskb)->mark = mark;
-
 	return XT_CONTINUE;
 }
 

net/netfilter/xt_SECMARK.c

@@ -47,9 +47,7 @@ static unsigned int target(struct sk_buff **pskb, const struct net_device *in,
 		BUG();
 	}
 
-	if ((*pskb)->secmark != secmark)
 	(*pskb)->secmark = secmark;
-
 	return XT_CONTINUE;
 }