[NET]: Change some "if (x) BUG();" to "BUG_ON(x);"

This changes some simple "if (x) BUG();" statements to "BUG_ON(x);"
Signed-off-by: Kris Katterjohn <kjak@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/core/dev.c

@@ -1092,15 +1092,12 @@ int skb_checksum_help(struct sk_buff *skb, int inward)
 			goto out;
 	}
 
-	if (offset > (int)skb->len)
-		BUG();
+	BUG_ON(offset > (int)skb->len);
 	csum = skb_checksum(skb, offset, skb->len-offset, 0);
 
 	offset = skb->tail - skb->h.raw;
-	if (offset <= 0)
-		BUG();
-	if (skb->csum + 2 > offset)
-		BUG();
+	BUG_ON(offset <= 0);
+	BUG_ON(skb->csum + 2 > offset);
 
 	*(u16*)(skb->h.raw + skb->csum) = csum_fold(csum);
 	skb->ip_summed = CHECKSUM_NONE;

net/core/skbuff.c

@@ -791,8 +791,7 @@ int ___pskb_trim(struct sk_buff *skb, unsigned int len, int realloc)
 		int end = offset + skb_shinfo(skb)->frags[i].size;
 		if (end > len) {
 			if (skb_cloned(skb)) {
-				if (!realloc)
-					BUG();
+				BUG_ON(!realloc);
 				if (pskb_expand_head(skb, 0, 0, GFP_ATOMIC))
 					return -ENOMEM;
 			}
@@ -894,8 +893,7 @@ unsigned char *__pskb_pull_tail(struct sk_buff *skb, int delta)
 		struct sk_buff *insp = NULL;
 
 		do {
-			if (!list)
-				BUG();
+			BUG_ON(!list);
 
 			if (list->len <= eat) {
 				/* Eaten as whole. */
@@ -1199,8 +1197,7 @@ unsigned int skb_checksum(const struct sk_buff *skb, int offset,
 			start = end;
 		}
 	}
-	if (len)
-		BUG();
+	BUG_ON(len);
 
 	return csum;
 }
@@ -1282,8 +1279,7 @@ unsigned int skb_copy_and_csum_bits(const struct sk_buff *skb, int offset,
 			start = end;
 		}
 	}
-	if (len)
-		BUG();
+	BUG_ON(len);
 	return csum;
 }
 
@@ -1297,8 +1293,7 @@ void skb_copy_and_csum_dev(const struct sk_buff *skb, u8 *to)
 	else
 		csstart = skb_headlen(skb);
 
-	if (csstart > skb_headlen(skb))
-		BUG();
+	BUG_ON(csstart > skb_headlen(skb));
 
 	memcpy(to, skb->data, csstart);
 

net/ipv4/icmp.c

@@ -899,8 +899,7 @@ static void icmp_address_reply(struct sk_buff *skb)
 		u32 _mask, *mp;
 
 		mp = skb_header_pointer(skb, 0, sizeof(_mask), &_mask);
-		if (mp == NULL)
-			BUG();
+		BUG_ON(mp == NULL);
 		for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
 			if (*mp == ifa->ifa_mask &&
 			    inet_ifa_match(rt->rt_src, ifa))

net/ipv4/inetpeer.c

@@ -304,8 +304,7 @@ static void unlink_from_pool(struct inet_peer *p)
 			/* look for a node to insert instead of p */
 			struct inet_peer *t;
 			t = lookup_rightempty(p);
-			if (*stackptr[-1] != t)
-				BUG();
+			BUG_ON(*stackptr[-1] != t);
 			**--stackptr = t->avl_left;
 			/* t is removed, t->v4daddr > x->v4daddr for any
 			 * x in p->avl_left subtree.
@@ -314,8 +313,7 @@ static void unlink_from_pool(struct inet_peer *p)
 			t->avl_left = p->avl_left;
 			t->avl_right = p->avl_right;
 			t->avl_height = p->avl_height;
-			if (delp[1] != &p->avl_left)
-				BUG();
+			BUG_ON(delp[1] != &p->avl_left);
 			delp[1] = &t->avl_left; /* was &p->avl_left */
 		}
 		peer_avl_rebalance(stack, stackptr);

net/ipv4/tcp_input.c

@@ -3347,7 +3347,7 @@ tcp_collapse(struct sock *sk, struct sk_buff_head *list,
 			int offset = start - TCP_SKB_CB(skb)->seq;
 			int size = TCP_SKB_CB(skb)->end_seq - start;
 
-			if (offset < 0) BUG();
+			BUG_ON(offset < 0);
 			if (size > 0) {
 				size = min(copy, size);
 				if (skb_copy_bits(skb, offset, skb_put(nskb, size), size))

net/key/af_key.c

@@ -297,8 +297,7 @@ static int pfkey_error(struct sadb_msg *orig, int err, struct sock *sk)
 		err = EINTR;
 	if (err >= 512)
 		err = EINVAL;
-	if (err <= 0 || err >= 256)
-		BUG();
+	BUG_ON(err <= 0 || err >= 256);
 
 	hdr = (struct sadb_msg *) skb_put(skb, sizeof(struct sadb_msg));
 	pfkey_hdr_dup(hdr, orig);

net/sctp/sm_sideeffect.c

@@ -1250,8 +1250,7 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
 		case SCTP_CMD_TIMER_START:
 			timer = &asoc->timers[cmd->obj.to];
 			timeout = asoc->timeouts[cmd->obj.to];
-			if (!timeout)
-				BUG();
+			BUG_ON(!timeout);
 
 			timer->expires = jiffies + timeout;
 			sctp_association_hold(asoc);

net/sunrpc/cache.c

@@ -575,12 +575,11 @@ cache_read(struct file *filp, char __user *buf, size_t count, loff_t *ppos)
 	if (rp->q.list.next == &cd->queue) {
 		spin_unlock(&queue_lock);
 		up(&queue_io_sem);
-		if (rp->offset)
-			BUG();
+		BUG_ON(rp->offset);
 		return 0;
 	}
 	rq = container_of(rp->q.list.next, struct cache_request, q.list);
-	if (rq->q.reader) BUG();
+	BUG_ON(rq->q.reader);
 	if (rp->offset == 0)
 		rq->readers++;
 	spin_unlock(&queue_lock);

net/sunrpc/svc.c

@@ -122,8 +122,7 @@ svc_init_buffer(struct svc_rqst *rqstp, unsigned int size)
 	rqstp->rq_argused = 0;
 	rqstp->rq_resused = 0;
 	arghi = 0;
-	if (pages > RPCSVC_MAXPAGES)
-		BUG();
+	BUG_ON(pages > RPCSVC_MAXPAGES);
 	while (pages) {
 		struct page *p = alloc_page(GFP_KERNEL);
 		if (!p)

net/xfrm/xfrm_algo.c

@@ -540,8 +540,7 @@ void skb_icv_walk(const struct sk_buff *skb, struct crypto_tfm *tfm,
 			start = end;
 		}
 	}
-	if (len)
-		BUG();
+	BUG_ON(len);
 }
 EXPORT_SYMBOL_GPL(skb_icv_walk);
 
@@ -610,8 +609,7 @@ skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset, int len)
 			start = end;
 		}
 	}
-	if (len)
-		BUG();
+	BUG_ON(len);
 	return elt;
 }
 EXPORT_SYMBOL_GPL(skb_to_sgvec);

net/xfrm/xfrm_policy.c

@@ -248,11 +248,9 @@ EXPORT_SYMBOL(xfrm_policy_alloc);
 
 void __xfrm_policy_destroy(struct xfrm_policy *policy)
 {
-	if (!policy->dead)
-		BUG();
+	BUG_ON(!policy->dead);
 
-	if (policy->bundles)
-		BUG();
+	BUG_ON(policy->bundles);
 
 	if (del_timer(&policy->timer))
 		BUG();