[deliverable/linux.git] / net / core / skbuff.c

/*
 *	Routines having to do with the 'struct sk_buff' memory handlers.
 *
 *	Authors:	Alan Cox <iiitac@pyr.swan.ac.uk>
 *			Florian La Roche <rzsfl@rz.uni-sb.de>
 *
 *	Version:	$Id: skbuff.c,v 1.90 2001/11/07 05:56:19 davem Exp $
 *
 *	Fixes:
 *		Alan Cox	:	Fixed the worst of the load
 *					balancer bugs.
 *		Dave Platt	:	Interrupt stacking fix.
 *	Richard Kooijman	:	Timestamp fixes.
 *		Alan Cox	:	Changed buffer format.
 *		Alan Cox	:	destructor hook for AF_UNIX etc.
 *		Linus Torvalds	:	Better skb_clone.
 *		Alan Cox	:	Added skb_copy.
 *		Alan Cox	:	Added all the changed routines Linus
 *					only put in the headers
 *		Ray VanTassle	:	Fixed --skb->lock in free
 *		Alan Cox	:	skb_copy copy arp field
 *		Andi Kleen	:	slabified it.
 *		Robert Olsson	:	Removed skb_head_pool
 *
 *	NOTE:
 *		The __skb_ routines should be called with interrupts
 *	disabled, or you better be *real* sure that the operation is atomic
 *	with respect to whatever list is being frobbed (e.g. via lock_sock()
 *	or via disabling bottom half handlers, etc).
 *
 *	This program is free software; you can redistribute it and/or
 *	modify it under the terms of the GNU General Public License
 *	as published by the Free Software Foundation; either version
 *	2 of the License, or (at your option) any later version.
 */

/*
 *	The functions in this file will not compile correctly with gcc 2.4.x
 */

#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/in.h>
#include <linux/inet.h>
#include <linux/slab.h>
#include <linux/netdevice.h>
#ifdef CONFIG_NET_CLS_ACT
#include <net/pkt_sched.h>
#endif
#include <linux/string.h>
#include <linux/skbuff.h>
#include <linux/cache.h>
#include <linux/rtnetlink.h>
#include <linux/init.h>
#include <linux/highmem.h>

#include <net/protocol.h>
#include <net/dst.h>
#include <net/sock.h>
#include <net/checksum.h>
#include <net/xfrm.h>

#include <asm/uaccess.h>
#include <asm/system.h>

static kmem_cache_t *skbuff_head_cache __read_mostly;
static kmem_cache_t *skbuff_fclone_cache __read_mostly;

/*
 *	Keep out-of-line to prevent kernel bloat.
 *	__builtin_return_address is not used because it is not always
 *	reliable.
 */

/**
 *	skb_over_panic	- 	private function
 *	@skb: buffer
 *	@sz: size
 *	@here: address
 *
 *	Out of line support code for skb_put(). Not user callable.
 */
void skb_over_panic(struct sk_buff *skb, int sz, void *here)
{
	printk(KERN_EMERG "skb_over_panic: text:%p len:%d put:%d head:%p "
	                  "data:%p tail:%p end:%p dev:%s\n",
	       here, skb->len, sz, skb->head, skb->data, skb->tail, skb->end,
	       skb->dev ? skb->dev->name : "<NULL>");
	BUG();
}

/**
 *	skb_under_panic	- 	private function
 *	@skb: buffer
 *	@sz: size
 *	@here: address
 *
 *	Out of line support code for skb_push(). Not user callable.
 */

void skb_under_panic(struct sk_buff *skb, int sz, void *here)
{
	printk(KERN_EMERG "skb_under_panic: text:%p len:%d put:%d head:%p "
	                  "data:%p tail:%p end:%p dev:%s\n",
	       here, skb->len, sz, skb->head, skb->data, skb->tail, skb->end,
	       skb->dev ? skb->dev->name : "<NULL>");
	BUG();
}

/* 	Allocate a new skbuff. We do this ourselves so we can fill in a few
 *	'private' fields and also do memory statistics to find all the
 *	[BEEP] leaks.
 *
 */

/**
 *	__alloc_skb	-	allocate a network buffer
 *	@size: size to allocate
 *	@gfp_mask: allocation mask
 *	@fclone: allocate from fclone cache instead of head cache
 *		and allocate a cloned (child) skb
 *
 *	Allocate a new &sk_buff. The returned buffer has no headroom and a
 *	tail room of size bytes. The object has a reference count of one.
 *	The return is the buffer. On a failure the return is %NULL.
 *
 *	Buffers may only be allocated from interrupts using a @gfp_mask of
 *	%GFP_ATOMIC.
 */
struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
			    int fclone)
{
	kmem_cache_t *cache;
	struct skb_shared_info *shinfo;
	struct sk_buff *skb;
	u8 *data;

	cache = fclone ? skbuff_fclone_cache : skbuff_head_cache;

	/* Get the HEAD */
	skb = kmem_cache_alloc(cache, gfp_mask & ~__GFP_DMA);
	if (!skb)
		goto out;

	/* Get the DATA. Size must match skb_add_mtu(). */
	size = SKB_DATA_ALIGN(size);
	data = ____kmalloc(size + sizeof(struct skb_shared_info), gfp_mask);
	if (!data)
		goto nodata;

	memset(skb, 0, offsetof(struct sk_buff, truesize));
	skb->truesize = size + sizeof(struct sk_buff);
	atomic_set(&skb->users, 1);
	skb->head = data;
	skb->data = data;
	skb->tail = data;
	skb->end  = data + size;
	/* make sure we initialize shinfo sequentially */
	shinfo = skb_shinfo(skb);
	atomic_set(&shinfo->dataref, 1);
	shinfo->nr_frags  = 0;
	shinfo->tso_size = 0;
	shinfo->tso_segs = 0;
	shinfo->ufo_size = 0;
	shinfo->ip6_frag_id = 0;
	shinfo->frag_list = NULL;

	if (fclone) {
		struct sk_buff *child = skb + 1;
		atomic_t *fclone_ref = (atomic_t *) (child + 1);

		skb->fclone = SKB_FCLONE_ORIG;
		atomic_set(fclone_ref, 1);

		child->fclone = SKB_FCLONE_UNAVAILABLE;
	}
out:
	return skb;
nodata:
	kmem_cache_free(cache, skb);
	skb = NULL;
	goto out;
}

/**
 *	alloc_skb_from_cache	-	allocate a network buffer
 *	@cp: kmem_cache from which to allocate the data area
 *           (object size must be big enough for @size bytes + skb overheads)
 *	@size: size to allocate
 *	@gfp_mask: allocation mask
 *
 *	Allocate a new &sk_buff. The returned buffer has no headroom and
 *	tail room of size bytes. The object has a reference count of one.
 *	The return is the buffer. On a failure the return is %NULL.
 *
 *	Buffers may only be allocated from interrupts using a @gfp_mask of
 *	%GFP_ATOMIC.
 */
struct sk_buff *alloc_skb_from_cache(kmem_cache_t *cp,
				     unsigned int size,
				     gfp_t gfp_mask)
{
	struct sk_buff *skb;
	u8 *data;

	/* Get the HEAD */
	skb = kmem_cache_alloc(skbuff_head_cache,
			       gfp_mask & ~__GFP_DMA);
	if (!skb)
		goto out;

	/* Get the DATA. */
	size = SKB_DATA_ALIGN(size);
	data = kmem_cache_alloc(cp, gfp_mask);
	if (!data)
		goto nodata;

	memset(skb, 0, offsetof(struct sk_buff, truesize));
	skb->truesize = size + sizeof(struct sk_buff);
	atomic_set(&skb->users, 1);
	skb->head = data;
	skb->data = data;
	skb->tail = data;
	skb->end  = data + size;

	atomic_set(&(skb_shinfo(skb)->dataref), 1);
	skb_shinfo(skb)->nr_frags  = 0;
	skb_shinfo(skb)->tso_size = 0;
	skb_shinfo(skb)->tso_segs = 0;
	skb_shinfo(skb)->frag_list = NULL;
out:
	return skb;
nodata:
	kmem_cache_free(skbuff_head_cache, skb);
	skb = NULL;
	goto out;
}


static void skb_drop_fraglist(struct sk_buff *skb)
{
	struct sk_buff *list = skb_shinfo(skb)->frag_list;

	skb_shinfo(skb)->frag_list = NULL;

	do {
		struct sk_buff *this = list;
		list = list->next;
		kfree_skb(this);
	} while (list);
}

static void skb_clone_fraglist(struct sk_buff *skb)
{
	struct sk_buff *list;

	for (list = skb_shinfo(skb)->frag_list; list; list = list->next)
		skb_get(list);
}

void skb_release_data(struct sk_buff *skb)
{
	if (!skb->cloned ||
	    !atomic_sub_return(skb->nohdr ? (1 << SKB_DATAREF_SHIFT) + 1 : 1,
			       &skb_shinfo(skb)->dataref)) {
		if (skb_shinfo(skb)->nr_frags) {
			int i;
			for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
				put_page(skb_shinfo(skb)->frags[i].page);
		}

		if (skb_shinfo(skb)->frag_list)
			skb_drop_fraglist(skb);

		kfree(skb->head);
	}
}

/*
 *	Free an skbuff by memory without cleaning the state.
 */
void kfree_skbmem(struct sk_buff *skb)
{
	struct sk_buff *other;
	atomic_t *fclone_ref;

	skb_release_data(skb);
	switch (skb->fclone) {
	case SKB_FCLONE_UNAVAILABLE:
		kmem_cache_free(skbuff_head_cache, skb);
		break;

	case SKB_FCLONE_ORIG:
		fclone_ref = (atomic_t *) (skb + 2);
		if (atomic_dec_and_test(fclone_ref))
			kmem_cache_free(skbuff_fclone_cache, skb);
		break;

	case SKB_FCLONE_CLONE:
		fclone_ref = (atomic_t *) (skb + 1);
		other = skb - 1;

		/* The clone portion is available for
		 * fast-cloning again.
		 */
		skb->fclone = SKB_FCLONE_UNAVAILABLE;

		if (atomic_dec_and_test(fclone_ref))
			kmem_cache_free(skbuff_fclone_cache, other);
		break;
	};
}

/**
 *	__kfree_skb - private function
 *	@skb: buffer
 *
 *	Free an sk_buff. Release anything attached to the buffer.
 *	Clean the state. This is an internal helper function. Users should
 *	always call kfree_skb
 */

void __kfree_skb(struct sk_buff *skb)
{
	dst_release(skb->dst);
#ifdef CONFIG_XFRM
	secpath_put(skb->sp);
#endif
	if (skb->destructor) {
		WARN_ON(in_irq());
		skb->destructor(skb);
	}
#ifdef CONFIG_NETFILTER
	nf_conntrack_put(skb->nfct);
#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
	nf_conntrack_put_reasm(skb->nfct_reasm);
#endif
#ifdef CONFIG_BRIDGE_NETFILTER
	nf_bridge_put(skb->nf_bridge);
#endif
#endif
/* XXX: IS this still necessary? - JHS */
#ifdef CONFIG_NET_SCHED
	skb->tc_index = 0;
#ifdef CONFIG_NET_CLS_ACT
	skb->tc_verd = 0;
#endif
#endif

	kfree_skbmem(skb);
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Routines having to do with the 'struct sk_buff' memory handlers.
	3	*
	4	* Authors: Alan Cox <iiitac@pyr.swan.ac.uk>
	5	* Florian La Roche <rzsfl@rz.uni-sb.de>
	6	*
	7	* Version: $Id: skbuff.c,v 1.90 2001/11/07 05:56:19 davem Exp $
	8	*
	9	* Fixes:
	10	* Alan Cox : Fixed the worst of the load
	11	* balancer bugs.
	12	* Dave Platt : Interrupt stacking fix.
	13	* Richard Kooijman : Timestamp fixes.
	14	* Alan Cox : Changed buffer format.
	15	* Alan Cox : destructor hook for AF_UNIX etc.
	16	* Linus Torvalds : Better skb_clone.
	17	* Alan Cox : Added skb_copy.
	18	* Alan Cox : Added all the changed routines Linus
	19	* only put in the headers
	20	* Ray VanTassle : Fixed --skb->lock in free
	21	* Alan Cox : skb_copy copy arp field
	22	* Andi Kleen : slabified it.
	23	* Robert Olsson : Removed skb_head_pool
	24	*
	25	* NOTE:
	26	* The __skb_ routines should be called with interrupts
	27	* disabled, or you better be real sure that the operation is atomic
	28	* with respect to whatever list is being frobbed (e.g. via lock_sock()
	29	* or via disabling bottom half handlers, etc).
	30	*
	31	* This program is free software; you can redistribute it and/or
	32	* modify it under the terms of the GNU General Public License
	33	* as published by the Free Software Foundation; either version
	34	* 2 of the License, or (at your option) any later version.
	35	*/
	36
	37	/*
	38	* The functions in this file will not compile correctly with gcc 2.4.x
	39	*/
	40
	41	#include <linux/config.h>
	42	#include <linux/module.h>
	43	#include <linux/types.h>
	44	#include <linux/kernel.h>
	45	#include <linux/sched.h>
	46	#include <linux/mm.h>
	47	#include <linux/interrupt.h>
	48	#include <linux/in.h>
	49	#include <linux/inet.h>
	50	#include <linux/slab.h>
	51	#include <linux/netdevice.h>
	52	#ifdef CONFIG_NET_CLS_ACT
	53	#include <net/pkt_sched.h>
	54	#endif
	55	#include <linux/string.h>
	56	#include <linux/skbuff.h>
	57	#include <linux/cache.h>
	58	#include <linux/rtnetlink.h>
	59	#include <linux/init.h>
	60	#include <linux/highmem.h>
	61
	62	#include <net/protocol.h>
	63	#include <net/dst.h>
	64	#include <net/sock.h>
65	#include <net/checksum.h>
66	#include <net/xfrm.h>
67
68	#include <asm/uaccess.h>
69	#include <asm/system.h>
70
ba89966c ED	71	static kmem_cache_t *skbuff_head_cache __read_mostly;
ba89966c ED	72	static kmem_cache_t *skbuff_fclone_cache __read_mostly;
1da177e4 LT	73
	74	/*
	75	* Keep out-of-line to prevent kernel bloat.
	76	* __builtin_return_address is not used because it is not always
	77	* reliable.
	78	*/
	79
	80	/**
	81	* skb_over_panic - private function
	82	* @skb: buffer
	83	* @sz: size
	84	* @here: address
	85	*
	86	* Out of line support code for skb_put(). Not user callable.
	87	*/
	88	void skb_over_panic(struct sk_buff skb, int sz, void here)
	89	{
26095455 PM	90	printk(KERN_EMERG "skb_over_panic: text:%p len:%d put:%d head:%p "
	91	"data:%p tail:%p end:%p dev:%s\n",
	92	here, skb->len, sz, skb->head, skb->data, skb->tail, skb->end,
	93	skb->dev ? skb->dev->name : "<NULL>");
1da177e4 LT	94	BUG();
	95	}
	96
	97	/**
	98	* skb_under_panic - private function
	99	* @skb: buffer
	100	* @sz: size
	101	* @here: address
	102	*
	103	* Out of line support code for skb_push(). Not user callable.
	104	*/
	105
	106	void skb_under_panic(struct sk_buff skb, int sz, void here)
	107	{
26095455 PM	108	printk(KERN_EMERG "skb_under_panic: text:%p len:%d put:%d head:%p "
	109	"data:%p tail:%p end:%p dev:%s\n",
	110	here, skb->len, sz, skb->head, skb->data, skb->tail, skb->end,
	111	skb->dev ? skb->dev->name : "<NULL>");
1da177e4 LT	112	BUG();
	113	}
	114
	115	/* Allocate a new skbuff. We do this ourselves so we can fill in a few
	116	* 'private' fields and also do memory statistics to find all the
	117	* [BEEP] leaks.
	118	*
	119	*/
	120
	121	/**
d179cd12	122	* __alloc_skb - allocate a network buffer
1da177e4 LT	123	* @size: size to allocate
1da177e4 LT	124	* @gfp_mask: allocation mask
c83c2486 RD	125	* @fclone: allocate from fclone cache instead of head cache
c83c2486 RD	126	* and allocate a cloned (child) skb
1da177e4 LT	127	*
	128	* Allocate a new &sk_buff. The returned buffer has no headroom and a
	129	* tail room of size bytes. The object has a reference count of one.
	130	* The return is the buffer. On a failure the return is %NULL.
	131	*
	132	* Buffers may only be allocated from interrupts using a @gfp_mask of
	133	* %GFP_ATOMIC.
	134	*/
dd0fc66f	135	struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,
d179cd12	136	int fclone)
1da177e4	137	{
8798b3fb	138	kmem_cache_t *cache;
4947d3ef	139	struct skb_shared_info *shinfo;
1da177e4 LT	140	struct sk_buff *skb;
	141	u8 *data;
	142
8798b3fb HX	143	cache = fclone ? skbuff_fclone_cache : skbuff_head_cache;
8798b3fb HX	144
1da177e4	145	/* Get the HEAD */
8798b3fb	146	skb = kmem_cache_alloc(cache, gfp_mask & ~__GFP_DMA);
1da177e4 LT	147	if (!skb)
	148	goto out;
	149
	150	/* Get the DATA. Size must match skb_add_mtu(). */
	151	size = SKB_DATA_ALIGN(size);
871751e2	152	data = ____kmalloc(size + sizeof(struct skb_shared_info), gfp_mask);
1da177e4 LT	153	if (!data)
	154	goto nodata;
	155
	156	memset(skb, 0, offsetof(struct sk_buff, truesize));
	157	skb->truesize = size + sizeof(struct sk_buff);
	158	atomic_set(&skb->users, 1);
	159	skb->head = data;
	160	skb->data = data;
	161	skb->tail = data;
	162	skb->end = data + size;
4947d3ef BL	163	/* make sure we initialize shinfo sequentially */
	164	shinfo = skb_shinfo(skb);
	165	atomic_set(&shinfo->dataref, 1);
	166	shinfo->nr_frags = 0;
	167	shinfo->tso_size = 0;
	168	shinfo->tso_segs = 0;
	169	shinfo->ufo_size = 0;
	170	shinfo->ip6_frag_id = 0;
	171	shinfo->frag_list = NULL;
	172
d179cd12 DM	173	if (fclone) {
	174	struct sk_buff *child = skb + 1;
	175	atomic_t fclone_ref = (atomic_t ) (child + 1);
1da177e4	176
d179cd12 DM	177	skb->fclone = SKB_FCLONE_ORIG;
	178	atomic_set(fclone_ref, 1);
	179
	180	child->fclone = SKB_FCLONE_UNAVAILABLE;
	181	}
1da177e4 LT	182	out:
	183	return skb;
	184	nodata:
8798b3fb	185	kmem_cache_free(cache, skb);
1da177e4 LT	186	skb = NULL;
	187	goto out;
	188	}
	189
	190	/**
	191	* alloc_skb_from_cache - allocate a network buffer
	192	* @cp: kmem_cache from which to allocate the data area
	193	* (object size must be big enough for @size bytes + skb overheads)
	194	* @size: size to allocate
	195	* @gfp_mask: allocation mask
	196	*
	197	* Allocate a new &sk_buff. The returned buffer has no headroom and
	198	* tail room of size bytes. The object has a reference count of one.
	199	* The return is the buffer. On a failure the return is %NULL.
	200	*
	201	* Buffers may only be allocated from interrupts using a @gfp_mask of
	202	* %GFP_ATOMIC.
	203	*/
	204	struct sk_buff alloc_skb_from_cache(kmem_cache_t cp,
86a76caf	205	unsigned int size,
dd0fc66f	206	gfp_t gfp_mask)
1da177e4 LT	207	{
	208	struct sk_buff *skb;
	209	u8 *data;
	210
	211	/* Get the HEAD */
	212	skb = kmem_cache_alloc(skbuff_head_cache,
	213	gfp_mask & ~__GFP_DMA);
	214	if (!skb)
	215	goto out;
	216
	217	/* Get the DATA. */
	218	size = SKB_DATA_ALIGN(size);
	219	data = kmem_cache_alloc(cp, gfp_mask);
	220	if (!data)
	221	goto nodata;
	222
	223	memset(skb, 0, offsetof(struct sk_buff, truesize));
	224	skb->truesize = size + sizeof(struct sk_buff);
	225	atomic_set(&skb->users, 1);
	226	skb->head = data;
	227	skb->data = data;
	228	skb->tail = data;
	229	skb->end = data + size;
	230
	231	atomic_set(&(skb_shinfo(skb)->dataref), 1);
	232	skb_shinfo(skb)->nr_frags = 0;
	233	skb_shinfo(skb)->tso_size = 0;
	234	skb_shinfo(skb)->tso_segs = 0;
	235	skb_shinfo(skb)->frag_list = NULL;
	236	out:
	237	return skb;
	238	nodata:
	239	kmem_cache_free(skbuff_head_cache, skb);
	240	skb = NULL;
	241	goto out;
	242	}
	243
	244
	245	static void skb_drop_fraglist(struct sk_buff *skb)
	246	{
	247	struct sk_buff *list = skb_shinfo(skb)->frag_list;
	248
	249	skb_shinfo(skb)->frag_list = NULL;
	250
	251	do {
	252	struct sk_buff *this = list;
	253	list = list->next;
	254	kfree_skb(this);
	255	} while (list);
	256	}
	257
	258	static void skb_clone_fraglist(struct sk_buff *skb)
	259	{
	260	struct sk_buff *list;
	261
	262	for (list = skb_shinfo(skb)->frag_list; list; list = list->next)
	263	skb_get(list);
	264	}
	265
	266	void skb_release_data(struct sk_buff *skb)
	267	{
	268	if (!skb->cloned \|\|
	269	!atomic_sub_return(skb->nohdr ? (1 << SKB_DATAREF_SHIFT) + 1 : 1,
	270	&skb_shinfo(skb)->dataref)) {
271	if (skb_shinfo(skb)->nr_frags) {
272	int i;
273	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
274	put_page(skb_shinfo(skb)->frags[i].page);
275	}
276
277	if (skb_shinfo(skb)->frag_list)
278	skb_drop_fraglist(skb);
279
280	kfree(skb->head);
281	}
282	}
283
284	/*
285	* Free an skbuff by memory without cleaning the state.
286	*/
287	void kfree_skbmem(struct sk_buff *skb)
288	{
d179cd12 DM	289	struct sk_buff *other;
	290	atomic_t *fclone_ref;
	291
1da177e4	292	skb_release_data(skb);
d179cd12 DM	293	switch (skb->fclone) {
	294	case SKB_FCLONE_UNAVAILABLE:
	295	kmem_cache_free(skbuff_head_cache, skb);
	296	break;
	297
	298	case SKB_FCLONE_ORIG:
	299	fclone_ref = (atomic_t *) (skb + 2);
	300	if (atomic_dec_and_test(fclone_ref))
	301	kmem_cache_free(skbuff_fclone_cache, skb);
	302	break;
	303
	304	case SKB_FCLONE_CLONE:
	305	fclone_ref = (atomic_t *) (skb + 1);
	306	other = skb - 1;
	307
	308	/* The clone portion is available for
	309	* fast-cloning again.
	310	*/
	311	skb->fclone = SKB_FCLONE_UNAVAILABLE;
	312
	313	if (atomic_dec_and_test(fclone_ref))
	314	kmem_cache_free(skbuff_fclone_cache, other);
	315	break;
	316	};
1da177e4 LT	317	}
	318
	319	/**
	320	* __kfree_skb - private function
	321	* @skb: buffer
	322	*
	323	* Free an sk_buff. Release anything attached to the buffer.
	324	* Clean the state. This is an internal helper function. Users should
	325	* always call kfree_skb
	326	*/
	327
	328	void __kfree_skb(struct sk_buff *skb)
	329	{
1da177e4 LT	330	dst_release(skb->dst);
	331	#ifdef CONFIG_XFRM
	332	secpath_put(skb->sp);
	333	#endif
9c2b3328 SH	334	if (skb->destructor) {
9c2b3328 SH	335	WARN_ON(in_irq());
1da177e4 LT	336	skb->destructor(skb);
	337	}
	338	#ifdef CONFIG_NETFILTER
	339	nf_conntrack_put(skb->nfct);
9fb9cbb1 YK	340	#if defined(CONFIG_NF_CONNTRACK) \|\| defined(CONFIG_NF_CONNTRACK_MODULE)
	341	nf_conntrack_put_reasm(skb->nfct_reasm);
	342	#endif
1da177e4 LT	343	#ifdef CONFIG_BRIDGE_NETFILTER
	344	nf_bridge_put(skb->nf_bridge);
	345	#endif
	346	#endif
	347	/* XXX: IS this still necessary? - JHS */
	348	#ifdef CONFIG_NET_SCHED
	349	skb->tc_index = 0;
	350	#ifdef CONFIG_NET_CLS_ACT
	351	skb->tc_verd = 0;
1da177e4 LT	352	#endif
	353	#endif
	354
	355	kfree_skbmem(skb);
	356	}
	357