Lines Matching +full:mmp +full:- +full:timer
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
7 * Florian La Roche, <rzsfl@rz.uni-sb.de>
28 #include <linux/dma-mapping.h>
40 #include <net/dropreason-core.h>
57 * .. flat-table:: Checksum related device features
60 * * - %NETIF_F_HW_CSUM
61 * - The driver (or its device) is able to compute one
67 * * - %NETIF_F_IP_CSUM
68 * - Driver (device) is only able to checksum plain
77 * * - %NETIF_F_IPV6_CSUM
78 * - Driver (device) is only able to checksum plain
88 * * - %NETIF_F_RXCSUM
89 * - Driver (device) performs receive checksum offload.
101 * - %CHECKSUM_NONE
105 * not in skb->csum. Thus, skb->csum is undefined in this case.
107 * - %CHECKSUM_UNNECESSARY
118 * - TCP: IPv6 and IPv4.
119 * - UDP: IPv4 and IPv6. A device may apply CHECKSUM_UNNECESSARY to a
122 * - GRE: only if the checksum is present in the header.
123 * - SCTP: indicates the CRC in SCTP header has been validated.
124 * - FCOE: indicates the CRC in FC frame has been validated.
128 * For instance if a device receives an IPv6->UDP->GRE->IPv4->TCP packet
133 * checksum is bad, skb->csum_level would be set to zero (TCP checksum is
136 * - %CHECKSUM_COMPLETE
144 * - Even if device supports only some protocols, but is able to produce
145 * skb->csum, it MUST use CHECKSUM_COMPLETE, not CHECKSUM_UNNECESSARY.
146 * - CHECKSUM_COMPLETE is not applicable to SCTP and FCoE protocols.
148 * - %CHECKSUM_PARTIAL
155 * referred to by skb->csum_start + skb->csum_offset and any preceding
160 * Checksumming on transmit for non-GSO
166 * - %CHECKSUM_PARTIAL
174 * checksum refers to a legitimate transport layer checksum -- it is the
192 * - %CHECKSUM_NONE
197 * - %CHECKSUM_UNNECESSARY
202 * - %CHECKSUM_COMPLETE
209 * Non-IP checksum (CRC) offloads
212 * .. flat-table::
215 * * - %NETIF_F_SCTP_CRC
216 * - This feature indicates that a device is capable of
226 * * - %NETIF_F_FCOE_CRC
227 * - This feature indicates that a device is capable of offloading the FCOE
253 /* Maximum value in skb->csum_level */
258 ((X) - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
260 /* For X bytes available in skb->head, what is the minimal
268 SKB_WITH_OVERHEAD((PAGE_SIZE << (ORDER)) - (X))
302 /* always valid & non-NULL from FORWARD on, for physdev match */
357 /* Set skb_shinfo(skb)->gso_size to this in case you want skb_segment to
369 * skb_frag_size() - Returns the size of a skb fragment
374 return frag->len; in skb_frag_size()
378 * skb_frag_size_set() - Sets the size of a skb fragment
384 frag->len = size; in skb_frag_size_set()
388 * skb_frag_size_add() - Increments the size of a skb fragment by @delta
394 frag->len += delta; in skb_frag_size_add()
398 * skb_frag_size_sub() - Decrements the size of a skb fragment by @delta
404 frag->len -= delta; in skb_frag_size_sub()
408 * skb_frag_must_loop - Test if %p is a high memory page
421 * skb_frag_foreach_page - loop over pages in a fragment
424 * @f_off: offset from start of f->netmem
428 * non-zero only on first page.
433 * A fragment can hold a compound page, in which case per-page
439 p_off = (f_off) & (PAGE_SIZE - 1), \
441 min_t(u32, f_len, PAGE_SIZE - p_off) : f_len, \
445 p_len = min_t(u32, f_len - copied, PAGE_SIZE)) \
448 * struct skb_shared_hwtstamps - hardware time stamps
455 * skb->tstamp.
575 } mmp; member
578 #define skb_uarg(SKB) ((struct ubuf_info *)(skb_shinfo(SKB)->destructor_arg))
582 int mm_account_pinned_pages(struct mmpin *mmp, size_t size);
583 void mm_unaccount_pinned_pages(struct mmpin *mmp);
595 * the end of the header data, ie. at skb->end.
642 * The higher 16 bits indicate how many of the references are payload-only.
658 * doing the right thing. In practice there's usually only one payload-only skb.
659 * Having multiple payload-only skbs with different lengths of hdr_len is not
660 * possible. The payload-only skbs should never leave their owner.
663 #define SKB_DATAREF_MASK ((1 << SKB_DATAREF_SHIFT) - 1)
742 * - data buffer, containing headers and sometimes payload;
745 * - shared info (struct skb_shared_info) which holds an array of pointers
746 * to read-only data in the (page, offset, length) format.
752 * ---------------
754 * ---------------
755 * ,--------------------------- + head
756 * / ,----------------- + data
757 * / / ,----------- + tail
761 * -----------------------------------------------
763 * -----------------------------------------------
767 * + [page frag] ---------
768 * + frag_list --> | sk_buff |
769 * ---------
774 * struct sk_buff - socket buffer
779 * for retransmit timer
793 * @csum_start: Offset from skb->head where checksumming should start
806 * @offload_fwd_mark: Packet was L2-forwarded in hardware
807 * @offload_l3_fwd_mark: Packet was L3-forwarded in hardware
812 * @nf_skip_egress: packet shall skip nf egress - see netfilter_netdev.h
818 * @tcp_tsorted_anchor: list structure for TCP (tp->tsorted_sent_queue)
833 * @l4_hash: indicate hash is a canonical 4-tuple hash over transport
852 * @tstamp_type: When set, skb->tstamp has the
853 * delivery_time clock base of skb->tstamp.
866 * skb->inner_protocol_type == ENCAP_TYPE_IPPROTO;
879 * @users: User count - see {datagram,tcp}.c
1098 /* only usable after checking ->active_extensions != 0 */
1134 * skb_pfmemalloc - Test if the skb was allocated from PFMEMALLOC reserves
1139 return unlikely(skb->pfmemalloc); in skb_pfmemalloc()
1150 * skb_dst - returns skb dst_entry
1160 WARN_ON((skb->_skb_refdst & SKB_DST_NOREF) && in skb_dst()
1163 return (struct dst_entry *)(skb->_skb_refdst & SKB_DST_PTRMASK); in skb_dst()
1167 * skb_dst_set - sets skb dst
1176 skb->slow_gro |= !!dst; in skb_dst_set()
1177 skb->_skb_refdst = (unsigned long)dst; in skb_dst_set()
1181 * skb_dst_set_noref - sets skb dst, hopefully, without taking reference
1193 skb->slow_gro |= !!dst; in skb_dst_set_noref()
1194 skb->_skb_refdst = (unsigned long)dst | SKB_DST_NOREF; in skb_dst_set_noref()
1198 * skb_dst_is_noref - Test if skb dst isn't refcounted
1203 return (skb->_skb_refdst & SKB_DST_NOREF) && skb_dst(skb); in skb_dst_is_noref()
1206 /* For mangling skb->pkt_type from user space side from applications
1216 * skb_napi_id - Returns the skb's NAPI id
1222 return skb->napi_id; in skb_napi_id()
1231 return skb->wifi_acked_valid; in skb_wifi_acked_valid()
1238 * skb_unref - decrement the skb's reference count
1247 if (!IS_ENABLED(CONFIG_DEBUG_NET) && likely(refcount_read(&skb->users) == 1)) in skb_unref()
1249 else if (likely(!refcount_dec_and_test(&skb->users))) in skb_unref()
1260 if (!skb->cloned) in skb_data_unref()
1263 bias = skb->nohdr ? (1 << SKB_DATAREF_SHIFT) + 1 : 1; in skb_data_unref()
1265 if (atomic_read(&shinfo->dataref) == bias) in skb_data_unref()
1267 else if (atomic_sub_return(bias, &shinfo->dataref)) in skb_data_unref()
1283 * kfree_skb - free an sk_buff with 'NOT_SPECIFIED' reason
1331 * alloc_skb - allocate a network buffer
1360 * skb_fclone_busy - check if fclone is busy
1375 return skb->fclone == SKB_FCLONE_ORIG && in skb_fclone_busy()
1376 refcount_read(&fclones->fclone_ref) > 1 && in skb_fclone_busy()
1377 READ_ONCE(fclones->skb2.sk) == sk; in skb_fclone_busy()
1381 * alloc_skb_fclone - allocate a network buffer from fclone cache
1421 * skb_pad - zero pad the tail of an skb
1467 * layer-2 (L2), layer-3 (L3), or layer-4 (L4).
1496 skb->hash = 0; in skb_clear_hash()
1497 skb->sw_hash = 0; in skb_clear_hash()
1498 skb->l4_hash = 0; in skb_clear_hash()
1503 if (!skb->l4_hash) in skb_clear_hash_if_not_l4()
1510 skb->l4_hash = is_l4; in __skb_set_hash()
1511 skb->sw_hash = is_sw; in __skb_set_hash()
1512 skb->hash = hash; in __skb_set_hash()
1610 if (!skb->l4_hash && !skb->sw_hash) in skb_get_hash_net()
1613 return skb->hash; in skb_get_hash_net()
1618 if (!skb->l4_hash && !skb->sw_hash) in skb_get_hash()
1621 return skb->hash; in skb_get_hash()
1626 if (!skb->l4_hash && !skb->sw_hash) { in skb_get_hash_flowi6()
1633 return skb->hash; in skb_get_hash_flowi6()
1641 return skb->hash; in skb_get_hash_raw()
1646 to->hash = from->hash; in skb_copy_hash()
1647 to->sw_hash = from->sw_hash; in skb_copy_hash()
1648 to->l4_hash = from->l4_hash; in skb_copy_hash()
1655 return skb2->decrypted - skb1->decrypted; in skb_cmp_decrypted()
1664 return skb->decrypted; in skb_is_decrypted()
1674 to->decrypted = from->decrypted; in skb_copy_decrypted()
1681 return skb->head + skb->end; in skb_end_pointer()
1686 return skb->end; in skb_end_offset()
1691 skb->end = offset; in skb_set_end_offset()
1696 return skb->end; in skb_end_pointer()
1701 return skb->end - skb->head; in skb_end_offset()
1706 skb->end = skb->head + offset; in skb_set_end_offset()
1727 return __zerocopy_sg_from_iter(msg, skb->sk, skb, &msg->msg_iter, len); in skb_zerocopy_iter_dgram()
1739 return &skb_shinfo(skb)->hwtstamps; in skb_hwtstamps()
1744 bool is_zcopy = skb && skb_shinfo(skb)->flags & SKBFL_ZEROCOPY_ENABLE; in skb_zcopy()
1751 return skb_shinfo(skb)->flags & SKBFL_PURE_ZEROCOPY; in skb_zcopy_pure()
1756 return skb_shinfo(skb)->flags & SKBFL_MANAGED_FRAG_REFS; in skb_zcopy_managed()
1767 refcount_inc(&uarg->refcnt); in net_zcopy_get()
1772 skb_shinfo(skb)->destructor_arg = uarg; in skb_zcopy_init()
1773 skb_shinfo(skb)->flags |= uarg->flags; in skb_zcopy_init()
1790 skb_shinfo(skb)->destructor_arg = (void *)((uintptr_t) val | 0x1UL); in skb_zcopy_set_nouarg()
1791 skb_shinfo(skb)->flags |= SKBFL_ZEROCOPY_FRAG; in skb_zcopy_set_nouarg()
1796 return (uintptr_t) skb_shinfo(skb)->destructor_arg & 0x1UL; in skb_zcopy_is_nouarg()
1801 return (void *)((uintptr_t) skb_shinfo(skb)->destructor_arg & ~0x1UL); in skb_zcopy_get_nouarg()
1807 uarg->ops->complete(NULL, uarg, true); in net_zcopy_put()
1813 if (uarg->ops == &msg_zerocopy_ubuf_ops) in net_zcopy_put_abort()
1827 uarg->ops->complete(skb, uarg, zerocopy_success); in skb_zcopy_clear()
1829 skb_shinfo(skb)->flags &= ~SKBFL_ALL_ZEROCOPY; in skb_zcopy_clear()
1844 return !skb->unreadable; in skb_frags_readable()
1849 skb->next = NULL; in skb_mark_not_on_list()
1855 skb->next = SKB_LIST_POISON_NEXT; in skb_poison_list()
1859 /* Iterate through singly-linked GSO fragments of an skb. */
1861 for ((skb) = (first), (next_skb) = (skb) ? (skb)->next : NULL; (skb); \
1862 (skb) = (next_skb), (next_skb) = (skb) ? (skb)->next : NULL)
1866 __list_del_entry(&skb->list); in skb_list_del_init()
1871 * skb_queue_empty - check if a queue is empty
1878 return list->next == (const struct sk_buff *) list; in skb_queue_empty()
1882 * skb_queue_empty_lockless - check if a queue is empty
1890 return READ_ONCE(list->next) == (const struct sk_buff *) list; in skb_queue_empty_lockless()
1895 * skb_queue_is_last - check if skb is the last entry in the queue
1904 return skb->next == (const struct sk_buff *) list; in skb_queue_is_last()
1908 * skb_queue_is_first - check if skb is the first entry in the queue
1917 return skb->prev == (const struct sk_buff *) list; in skb_queue_is_first()
1921 * skb_queue_next - return the next packet in the queue
1935 return skb->next; in skb_queue_next()
1939 * skb_queue_prev - return the prev packet in the queue
1953 return skb->prev; in skb_queue_prev()
1957 * skb_get - reference buffer
1965 refcount_inc(&skb->users); in skb_get()
1974 * skb_cloned - is the buffer a clone
1983 return skb->cloned && in skb_cloned()
1984 (atomic_read(&skb_shinfo(skb)->dataref) & SKB_DATAREF_MASK) != 1; in skb_cloned()
1997 /* This variant of skb_unclone() makes sure skb->truesize
1998 * and skb_end_offset() are not changed, whenever a new skb->head is needed.
2014 * skb_header_cloned - is the header a clone
2024 if (!skb->cloned) in skb_header_cloned()
2027 dataref = atomic_read(&skb_shinfo(skb)->dataref); in skb_header_cloned()
2028 dataref = (dataref & SKB_DATAREF_MASK) - (dataref >> SKB_DATAREF_SHIFT); in skb_header_cloned()
2043 * __skb_header_release() - allow clones to use the headroom
2050 skb->nohdr = 1; in __skb_header_release()
2051 atomic_set(&skb_shinfo(skb)->dataref, 1 + (1 << SKB_DATAREF_SHIFT)); in __skb_header_release()
2056 * skb_shared - is the buffer shared
2064 return refcount_read(&skb->users) != 1; in skb_shared()
2068 * skb_share_check - check if buffer is shared and if so clone it
2103 * skb_unshare - make a copy of a shared buffer
2133 * skb_peek - peek at the head of an &sk_buff_head
2147 struct sk_buff *skb = list_->next; in skb_peek()
2155 * __skb_peek - peek at the head of a non-empty &sk_buff_head
2162 return list_->next; in __skb_peek()
2166 * skb_peek_next - peek skb following the given one from a queue
2177 struct sk_buff *next = skb->next; in skb_peek_next()
2185 * skb_peek_tail - peek at the tail of an &sk_buff_head
2199 struct sk_buff *skb = READ_ONCE(list_->prev); in skb_peek_tail()
2208 * skb_queue_len - get queue length
2215 return list_->qlen; in skb_queue_len()
2219 * skb_queue_len_lockless - get queue length
2227 return READ_ONCE(list_->qlen); in skb_queue_len_lockless()
2231 * __skb_queue_head_init - initialize non-spinlock portions of sk_buff_head
2237 * the spinlock. It can also be used for on-stack sk_buff_head
2242 list->prev = list->next = (struct sk_buff *)list; in __skb_queue_head_init()
2243 list->qlen = 0; in __skb_queue_head_init()
2248 * this is needed for now since a whole lot of users of the skb-queue
2256 spin_lock_init(&list->lock); in skb_queue_head_init()
2264 lockdep_set_class(&list->lock, class); in skb_queue_head_init_class()
2270 * The "__skb_xxxx()" functions are the non-atomic ones that
2280 WRITE_ONCE(newsk->next, next); in __skb_insert()
2281 WRITE_ONCE(newsk->prev, prev); in __skb_insert()
2282 WRITE_ONCE(((struct sk_buff_list *)next)->prev, newsk); in __skb_insert()
2283 WRITE_ONCE(((struct sk_buff_list *)prev)->next, newsk); in __skb_insert()
2284 WRITE_ONCE(list->qlen, list->qlen + 1); in __skb_insert()
2291 struct sk_buff *first = list->next; in __skb_queue_splice()
2292 struct sk_buff *last = list->prev; in __skb_queue_splice()
2294 WRITE_ONCE(first->prev, prev); in __skb_queue_splice()
2295 WRITE_ONCE(prev->next, first); in __skb_queue_splice()
2297 WRITE_ONCE(last->next, next); in __skb_queue_splice()
2298 WRITE_ONCE(next->prev, last); in __skb_queue_splice()
2302 * skb_queue_splice - join two skb lists, this is designed for stacks
2310 __skb_queue_splice(list, (struct sk_buff *) head, head->next); in skb_queue_splice()
2311 head->qlen += list->qlen; in skb_queue_splice()
2316 * skb_queue_splice_init - join two skb lists and reinitialise the emptied list
2326 __skb_queue_splice(list, (struct sk_buff *) head, head->next); in skb_queue_splice_init()
2327 head->qlen += list->qlen; in skb_queue_splice_init()
2333 * skb_queue_splice_tail - join two skb lists, each list being a queue
2341 __skb_queue_splice(list, head->prev, (struct sk_buff *) head); in skb_queue_splice_tail()
2342 head->qlen += list->qlen; in skb_queue_splice_tail()
2347 * skb_queue_splice_tail_init - join two skb lists and reinitialise the emptied list
2358 __skb_queue_splice(list, head->prev, (struct sk_buff *) head); in skb_queue_splice_tail_init()
2359 head->qlen += list->qlen; in skb_queue_splice_tail_init()
2365 * __skb_queue_after - queue a buffer at the list head
2379 __skb_insert(newsk, prev, ((struct sk_buff_list *)prev)->next, list); in __skb_queue_after()
2389 __skb_insert(newsk, ((struct sk_buff_list *)next)->prev, next, list); in __skb_queue_before()
2393 * __skb_queue_head - queue a buffer at the list head
2410 * __skb_queue_tail - queue a buffer at the list tail
2435 WRITE_ONCE(list->qlen, list->qlen - 1); in __skb_unlink()
2436 next = skb->next; in __skb_unlink()
2437 prev = skb->prev; in __skb_unlink()
2438 skb->next = skb->prev = NULL; in __skb_unlink()
2439 WRITE_ONCE(next->prev, prev); in __skb_unlink()
2440 WRITE_ONCE(prev->next, next); in __skb_unlink()
2444 * __skb_dequeue - remove from the head of the queue
2461 * __skb_dequeue_tail - remove from the tail of the queue
2480 return skb->data_len; in skb_is_nonlinear()
2485 return skb->len - skb->data_len; in skb_headlen()
2492 for (i = skb_shinfo(skb)->nr_frags - 1; (int)i >= 0; i--) in __skb_pagelen()
2493 len += skb_frag_size(&skb_shinfo(skb)->frags[i]); in __skb_pagelen()
2506 frag->netmem = netmem; in skb_frag_fill_netmem_desc()
2507 frag->offset = off; in skb_frag_fill_netmem_desc()
2522 skb_frag_t *frag = &shinfo->frags[i]; in __skb_fill_netmem_desc_noacc()
2536 * skb_len_add - adds a number to len fields of skb
2542 skb->len += delta; in skb_len_add()
2543 skb->data_len += delta; in skb_len_add()
2544 skb->truesize += delta; in skb_len_add()
2548 * __skb_fill_netmem_desc - initialise a fragment in an skb
2568 skb->unreadable = true; in __skb_fill_netmem_desc()
2580 skb->pfmemalloc = true; in __skb_fill_netmem_desc()
2593 skb_shinfo(skb)->nr_frags = i + 1; in skb_fill_netmem_desc()
2597 * skb_fill_page_desc - initialise a paged fragment in an skb
2604 * As per __skb_fill_page_desc() -- initialises the @i'th fragment of
2617 * skb_fill_page_desc_noacc - initialise a paged fragment in an skb
2634 shinfo->nr_frags = i + 1; in skb_fill_page_desc_noacc()
2656 return skb->head + skb->tail; in skb_tail_pointer()
2661 skb->tail = skb->data - skb->head; in skb_reset_tail_pointer()
2667 skb->tail += offset; in skb_set_tail_pointer()
2673 return skb->tail; in skb_tail_pointer()
2678 skb->tail = skb->data; in skb_reset_tail_pointer()
2683 skb->tail = skb->data + offset; in skb_set_tail_pointer()
2691 if (WARN_ONCE(!skb->len, "%s\n", __func__)) in skb_assert_len()
2711 skb->tail += len; in __skb_put()
2712 skb->len += len; in __skb_put()
2767 skb->data -= len; in __skb_push()
2768 skb->len += len; in __skb_push()
2769 return skb->data; in __skb_push()
2777 skb->len -= len; in __skb_pull()
2778 if (unlikely(skb->len < skb->data_len)) { in __skb_pull()
2780 skb->len += len; in __skb_pull()
2786 return skb->data += len; in __skb_pull()
2791 return unlikely(len > skb->len) ? NULL : __skb_pull(skb, len); in skb_pull_inline()
2807 if (unlikely(len > skb->len)) in pskb_may_pull_reason()
2810 if (unlikely(!__pskb_pull_tail(skb, len - skb_headlen(skb)))) in pskb_may_pull_reason()
2826 skb->len -= len; in pskb_pull()
2827 return skb->data += len; in pskb_pull()
2833 * skb_headroom - bytes at buffer head
2840 return skb->data - skb->head; in skb_headroom()
2844 * skb_tailroom - bytes at buffer end
2851 return skb_is_nonlinear(skb) ? 0 : skb->end - skb->tail; in skb_tailroom()
2855 * skb_availroom - bytes at buffer end
2866 return skb->end - skb->tail - skb->reserved_tailroom; in skb_availroom()
2870 * skb_reserve - adjust headroom
2879 skb->data += len; in skb_reserve()
2880 skb->tail += len; in skb_reserve()
2884 * skb_tailroom_reserve - adjust reserved_tailroom
2899 if (mtu < skb_tailroom(skb) - needed_tailroom) in skb_tailroom_reserve()
2901 skb->reserved_tailroom = skb_tailroom(skb) - mtu; in skb_tailroom_reserve()
2904 skb->reserved_tailroom = needed_tailroom; in skb_tailroom_reserve()
2913 skb->inner_protocol = protocol; in skb_set_inner_protocol()
2914 skb->inner_protocol_type = ENCAP_TYPE_ETHER; in skb_set_inner_protocol()
2920 skb->inner_ipproto = ipproto; in skb_set_inner_ipproto()
2921 skb->inner_protocol_type = ENCAP_TYPE_IPPROTO; in skb_set_inner_ipproto()
2926 skb->inner_mac_header = skb->mac_header; in skb_reset_inner_headers()
2927 skb->inner_network_header = skb->network_header; in skb_reset_inner_headers()
2928 skb->inner_transport_header = skb->transport_header; in skb_reset_inner_headers()
2933 return skb->mac_header != (typeof(skb->mac_header))~0U; in skb_mac_header_was_set()
2940 skb->mac_len = 0; in skb_reset_mac_len()
2942 skb->mac_len = skb->network_header - skb->mac_header; in skb_reset_mac_len()
2949 return skb->head + skb->inner_transport_header; in skb_inner_transport_header()
2954 return skb_inner_transport_header(skb) - skb->data; in skb_inner_transport_offset()
2959 long offset = skb->data - skb->head; in skb_reset_inner_transport_header()
2961 DEBUG_NET_WARN_ON_ONCE(offset != (typeof(skb->inner_transport_header))offset); in skb_reset_inner_transport_header()
2962 skb->inner_transport_header = offset; in skb_reset_inner_transport_header()
2969 skb->inner_transport_header += offset; in skb_set_inner_transport_header()
2974 return skb->head + skb->inner_network_header; in skb_inner_network_header()
2979 long offset = skb->data - skb->head; in skb_reset_inner_network_header()
2981 DEBUG_NET_WARN_ON_ONCE(offset != (typeof(skb->inner_network_header))offset); in skb_reset_inner_network_header()
2982 skb->inner_network_header = offset; in skb_reset_inner_network_header()
2989 skb->inner_network_header += offset; in skb_set_inner_network_header()
2994 return skb->inner_network_header > 0; in skb_inner_network_header_was_set()
2999 return skb->head + skb->inner_mac_header; in skb_inner_mac_header()
3004 long offset = skb->data - skb->head; in skb_reset_inner_mac_header()
3006 DEBUG_NET_WARN_ON_ONCE(offset != (typeof(skb->inner_mac_header))offset); in skb_reset_inner_mac_header()
3007 skb->inner_mac_header = offset; in skb_reset_inner_mac_header()
3014 skb->inner_mac_header += offset; in skb_set_inner_mac_header()
3018 return skb->transport_header != (typeof(skb->transport_header))~0U; in skb_transport_header_was_set()
3024 return skb->head + skb->transport_header; in skb_transport_header()
3029 long offset = skb->data - skb->head; in skb_reset_transport_header()
3031 DEBUG_NET_WARN_ON_ONCE(offset != (typeof(skb->transport_header))offset); in skb_reset_transport_header()
3032 skb->transport_header = offset; in skb_reset_transport_header()
3039 skb->transport_header += offset; in skb_set_transport_header()
3044 return skb->head + skb->network_header; in skb_network_header()
3049 long offset = skb->data - skb->head; in skb_reset_network_header()
3051 DEBUG_NET_WARN_ON_ONCE(offset != (typeof(skb->network_header))offset); in skb_reset_network_header()
3052 skb->network_header = offset; in skb_reset_network_header()
3058 skb->network_header += offset; in skb_set_network_header()
3064 return skb->head + skb->mac_header; in skb_mac_header()
3069 return skb_mac_header(skb) - skb->data; in skb_mac_offset()
3075 return skb->network_header - skb->mac_header; in skb_mac_header_len()
3080 skb->mac_header = (typeof(skb->mac_header))~0U; in skb_unset_mac_header()
3085 long offset = skb->data - skb->head; in skb_reset_mac_header()
3087 DEBUG_NET_WARN_ON_ONCE(offset != (typeof(skb->mac_header))offset); in skb_reset_mac_header()
3088 skb->mac_header = offset; in skb_reset_mac_header()
3094 skb->mac_header += offset; in skb_set_mac_header()
3099 skb->mac_header = skb->network_header; in skb_pop_mac_header()
3119 skb_set_mac_header(skb, -skb->mac_len); in skb_mac_header_rebuild()
3120 memmove(skb_mac_header(skb), old_mac, skb->mac_len); in skb_mac_header_rebuild()
3125 * Leaves skb->data pointing at offset skb->mac_len into the mac_header.
3133 skb_set_mac_header(skb, -full_mac_len); in skb_mac_header_rebuild_full()
3135 __skb_push(skb, full_mac_len - skb->mac_len); in skb_mac_header_rebuild_full()
3141 return skb->csum_start - skb_headroom(skb); in skb_checksum_start_offset()
3146 return skb->head + skb->csum_start; in skb_checksum_start()
3151 return skb_transport_header(skb) - skb->data; in skb_transport_offset()
3157 return skb->transport_header - skb->network_header; in skb_network_header_len()
3162 return skb->inner_transport_header - skb->inner_network_header; in skb_inner_network_header_len()
3167 return skb_network_header(skb) - skb->data; in skb_network_offset()
3172 return skb_inner_network_header(skb) - skb->data; in skb_inner_network_offset()
3240 skb->len = len; in __skb_set_length()
3253 if (skb->data_len) in __pskb_trim()
3262 return (len < skb->len) ? __pskb_trim(skb, len) : 0; in pskb_trim()
3266 * pskb_trim_unique - remove end from a paged unique (not cloned) buffer
3271 * the skb is not cloned so we should never get an error due to out-
3272 * of-memory.
3282 unsigned int diff = len - skb->len; in __skb_grow()
3285 int ret = pskb_expand_head(skb, 0, diff - skb_tailroom(skb), in __skb_grow()
3295 * skb_orphan - orphan a buffer
3304 if (skb->destructor) { in skb_orphan()
3305 skb->destructor(skb); in skb_orphan()
3306 skb->destructor = NULL; in skb_orphan()
3307 skb->sk = NULL; in skb_orphan()
3309 BUG_ON(skb->sk); in skb_orphan()
3314 * skb_orphan_frags - orphan the frags contained in a buffer
3326 if (skb_shinfo(skb)->flags & SKBFL_DONT_ORPHAN) in skb_orphan_frags()
3340 * __skb_queue_purge_reason - empty a list
3376 * netdev_alloc_frag - allocate a page fragment
3391 return __netdev_alloc_frag_align(fragsz, -align); in netdev_alloc_frag_align()
3398 * netdev_alloc_skb - allocate an skbuff for rx on a specific device
3462 return __napi_alloc_frag_align(fragsz, -align); in napi_alloc_frag_align()
3472 * __dev_alloc_pages - allocate page for network Rx
3504 * __dev_alloc_page - allocate a page for network Rx
3524 * dev_page_is_reusable - check whether a page can be reused for network Rx
3540 * skb_propagate_pfmemalloc - Propagate pfmemalloc if skb is allocated after RX page
3548 skb->pfmemalloc = true; in skb_propagate_pfmemalloc()
3552 * skb_frag_off() - Returns the offset of a skb fragment
3557 return frag->offset; in skb_frag_off()
3561 * skb_frag_off_add() - Increments the offset of a skb fragment by @delta
3567 frag->offset += delta; in skb_frag_off_add()
3571 * skb_frag_off_set() - Sets the offset of a skb fragment
3577 frag->offset = offset; in skb_frag_off_set()
3581 * skb_frag_off_copy() - Sets the offset of a skb fragment from another fragment
3588 fragto->offset = fragfrom->offset; in skb_frag_off_copy()
3594 return netmem_is_net_iov(frag->netmem); in skb_frag_is_net_iov()
3598 * skb_frag_net_iov - retrieve the net_iov referred to by fragment
3609 return netmem_to_net_iov(frag->netmem); in skb_frag_net_iov()
3613 * skb_frag_page - retrieve the page referred to by a paged fragment
3624 return netmem_to_page(frag->netmem); in skb_frag_page()
3628 * skb_frag_netmem - retrieve the netmem referred to by a fragment
3635 return frag->netmem; in skb_frag_netmem()
3644 * skb_frag_address - gets the address of the data contained in a paged fragment
3659 * skb_frag_address_safe - gets the address of the data contained in a paged fragment
3675 * skb_frag_page_copy() - sets the page in a fragment from another fragment
3682 fragto->netmem = fragfrom->netmem; in skb_frag_page_copy()
3688 * __skb_frag_dma_map - maps a paged fragment via the DMA API
3715 __skb_frag_dma_map(dev, uf, uo, skb_frag_size(uf) - uo, \
3743 * skb_clone_writable - is the header of a clone writable
3753 skb_headroom(skb) + len <= skb->hdr_len; in skb_clone_writable()
3769 delta = headroom - skb_headroom(skb); in __skb_cow()
3778 * skb_cow - copy header of skb when it is required
3786 * The result is skb with writable area skb->head...skb->tail
3795 * skb_cow_head - skb_cow but only making the head writable
3810 * skb_padto - pad an skbuff up to a minimal size
3821 unsigned int size = skb->len; in skb_padto()
3824 return skb_pad(skb, len - size); in skb_padto()
3828 * __skb_put_padto - increase size and pad an skbuff up to a minimal size
3842 unsigned int size = skb->len; in __skb_put_padto()
3845 len -= size; in __skb_put_padto()
3847 return -ENOMEM; in __skb_put_padto()
3854 * skb_put_padto - increase size and pad an skbuff up to a minimal size
3877 const skb_frag_t *frag = &skb_shinfo(skb)->frags[i - 1]; in skb_can_coalesce()
3887 return __pskb_pull_tail(skb, skb->data_len) ? 0 : -ENOMEM; in __skb_linearize()
3891 * skb_linearize - convert paged skb to linear one
3894 * If there is no free memory -ENOMEM is returned, otherwise zero
3903 * skb_has_shared_frag - can any frag be overwritten
3912 skb_shinfo(skb)->flags & SKBFL_SHARED_FRAG; in skb_has_shared_frag()
3916 * skb_linearize_cow - make sure skb is linear and writable
3919 * If there is no free memory -ENOMEM is returned, otherwise zero
3932 if (skb->ip_summed == CHECKSUM_COMPLETE) in __skb_postpull_rcsum()
3933 skb->csum = csum_block_sub(skb->csum, in __skb_postpull_rcsum()
3935 else if (skb->ip_summed == CHECKSUM_PARTIAL && in __skb_postpull_rcsum()
3937 skb->ip_summed = CHECKSUM_NONE; in __skb_postpull_rcsum()
3941 * skb_postpull_rcsum - update checksum for received skb after pull
3953 if (skb->ip_summed == CHECKSUM_COMPLETE) in skb_postpull_rcsum()
3954 skb->csum = wsum_negate(csum_partial(start, len, in skb_postpull_rcsum()
3955 wsum_negate(skb->csum))); in skb_postpull_rcsum()
3956 else if (skb->ip_summed == CHECKSUM_PARTIAL && in skb_postpull_rcsum()
3958 skb->ip_summed = CHECKSUM_NONE; in skb_postpull_rcsum()
3965 if (skb->ip_summed == CHECKSUM_COMPLETE) in __skb_postpush_rcsum()
3966 skb->csum = csum_block_add(skb->csum, in __skb_postpush_rcsum()
3971 * skb_postpush_rcsum - update checksum for received skb after push
3988 * skb_push_rcsum - push skb and update receive checksum
4001 skb_postpush_rcsum(skb, skb->data, len); in skb_push_rcsum()
4002 return skb->data; in skb_push_rcsum()
4007 * pskb_trim_rcsum - trim received skb and update checksum
4019 if (likely(len >= skb->len)) in pskb_trim_rcsum()
4026 if (skb->ip_summed == CHECKSUM_COMPLETE) in __skb_trim_rcsum()
4027 skb->ip_summed = CHECKSUM_NONE; in __skb_trim_rcsum()
4034 if (skb->ip_summed == CHECKSUM_COMPLETE) in __skb_grow_rcsum()
4035 skb->ip_summed = CHECKSUM_NONE; in __skb_grow_rcsum()
4042 #define skb_rb_next(skb) rb_to_skb(rb_next(&(skb)->rbnode))
4043 #define skb_rb_prev(skb) rb_to_skb(rb_prev(&(skb)->rbnode))
4046 for (skb = (queue)->next; \
4048 skb = skb->next)
4051 for (skb = (queue)->next, tmp = skb->next; \
4053 skb = tmp, tmp = skb->next)
4057 skb = skb->next)
4072 for (tmp = skb->next; \
4074 skb = tmp, tmp = skb->next)
4077 for (skb = (queue)->prev; \
4079 skb = skb->prev)
4082 for (skb = (queue)->prev, tmp = skb->prev; \
4084 skb = tmp, tmp = skb->prev)
4087 for (tmp = skb->prev; \
4089 skb = tmp, tmp = skb->prev)
4093 return skb_shinfo(skb)->frag_list != NULL; in skb_has_frag_list()
4098 skb_shinfo(skb)->frag_list = NULL; in skb_frag_list_init()
4102 for (iter = skb_shinfo(skb)->frag_list; iter; iter = iter->next)
4128 return skb_copy_datagram_iter(from, offset, &msg->msg_iter, size); in skb_copy_datagram_msg()
4180 return copy_from_iter_full(data, len, &msg->msg_iter) ? 0 : -EFAULT; in memcpy_from_msg()
4185 return copy_to_iter(data, len, &msg->msg_iter) == len ? 0 : -EFAULT; in memcpy_to_msg()
4204 if (likely(hlen - offset >= len)) in __skb_header_pointer()
4216 return __skb_header_pointer(skb, offset, len, skb->data, in skb_header_pointer()
4223 if (likely(skb_headlen(skb) - offset >= len)) in skb_pointer_if_linear()
4224 return skb->data + offset; in skb_pointer_if_linear()
4229 * skb_needs_linearize - check if we need to linearize a given skb
4243 (skb_shinfo(skb)->nr_frags && !(features & NETIF_F_SG))); in skb_needs_linearize()
4250 memcpy(to, skb->data, len); in skb_copy_from_linear_data()
4257 memcpy(to, skb->data + offset, len); in skb_copy_from_linear_data_offset()
4264 memcpy(skb->data, from, len); in skb_copy_to_linear_data()
4272 memcpy(skb->data + offset, from, len); in skb_copy_to_linear_data_offset()
4279 return skb->tstamp; in skb_get_ktime()
4283 * skb_get_timestamp - get timestamp from a skb
4294 *stamp = ns_to_kernel_old_timeval(skb->tstamp); in skb_get_timestamp()
4300 struct timespec64 ts = ktime_to_timespec64(skb->tstamp); in skb_get_new_timestamp()
4302 stamp->tv_sec = ts.tv_sec; in skb_get_new_timestamp()
4303 stamp->tv_usec = ts.tv_nsec / 1000; in skb_get_new_timestamp()
4309 struct timespec64 ts = ktime_to_timespec64(skb->tstamp); in skb_get_timestampns()
4311 stamp->tv_sec = ts.tv_sec; in skb_get_timestampns()
4312 stamp->tv_nsec = ts.tv_nsec; in skb_get_timestampns()
4318 struct timespec64 ts = ktime_to_timespec64(skb->tstamp); in skb_get_new_timestampns()
4320 stamp->tv_sec = ts.tv_sec; in skb_get_new_timestampns()
4321 stamp->tv_nsec = ts.tv_nsec; in skb_get_new_timestampns()
4326 skb->tstamp = ktime_get_real(); in __net_timestamp()
4327 skb->tstamp_type = SKB_CLOCK_REALTIME; in __net_timestamp()
4338 skb->tstamp = kt; in skb_set_delivery_time()
4341 skb->tstamp_type = tstamp_type; in skb_set_delivery_time()
4343 skb->tstamp_type = SKB_CLOCK_REALTIME; in skb_set_delivery_time()
4371 * If needed, set the skb->tstamp to the (rcv) timestamp.
4375 if (skb->tstamp_type) { in skb_clear_delivery_time()
4376 skb->tstamp_type = SKB_CLOCK_REALTIME; in skb_clear_delivery_time()
4378 skb->tstamp = ktime_get_real(); in skb_clear_delivery_time()
4380 skb->tstamp = 0; in skb_clear_delivery_time()
4386 if (skb->tstamp_type) in skb_clear_tstamp()
4389 skb->tstamp = 0; in skb_clear_tstamp()
4394 if (skb->tstamp_type) in skb_tstamp()
4397 return skb->tstamp; in skb_tstamp()
4402 if (skb->tstamp_type != SKB_CLOCK_MONOTONIC && skb->tstamp) in skb_tstamp_cond()
4403 return skb->tstamp; in skb_tstamp_cond()
4413 return skb_shinfo(skb)->meta_len; in skb_metadata_len()
4435 #define __it(x, op) (x -= sizeof(u##op)) in __skb_metadata_differs()
4455 return memcmp(a - meta_len, b - meta_len, meta_len); in __skb_metadata_differs()
4475 skb_shinfo(skb)->meta_len = meta_len; in skb_metadata_set()
4504 * skb_complete_tx_timestamp() - deliver cloned skb with tx timestamps
4523 * skb_tstamp_tx - queue clone of skb with send time stamps
4537 * skb_tx_timestamp() - Driver hook for transmit timestamping
4551 if (skb_shinfo(skb)->tx_flags & (SKBTX_SW_TSTAMP | SKBTX_BPF)) in skb_tx_timestamp()
4556 * skb_complete_wifi_ack - deliver skb with wifi status
4569 return ((skb->ip_summed == CHECKSUM_UNNECESSARY) || in skb_csum_unnecessary()
4570 skb->csum_valid || in skb_csum_unnecessary()
4571 (skb->ip_summed == CHECKSUM_PARTIAL && in skb_csum_unnecessary()
4576 * skb_checksum_complete - Calculate checksum of an entire packet
4580 * the value of skb->csum. The latter can be used to supply the
4588 * if skb->ip_summed is CHECKSUM_UNNECESSARY which indicates that the
4599 if (skb->ip_summed == CHECKSUM_UNNECESSARY) { in __skb_decr_checksum_unnecessary()
4600 if (skb->csum_level == 0) in __skb_decr_checksum_unnecessary()
4601 skb->ip_summed = CHECKSUM_NONE; in __skb_decr_checksum_unnecessary()
4603 skb->csum_level--; in __skb_decr_checksum_unnecessary()
4609 if (skb->ip_summed == CHECKSUM_UNNECESSARY) { in __skb_incr_checksum_unnecessary()
4610 if (skb->csum_level < SKB_MAX_CSUM_LEVEL) in __skb_incr_checksum_unnecessary()
4611 skb->csum_level++; in __skb_incr_checksum_unnecessary()
4612 } else if (skb->ip_summed == CHECKSUM_NONE) { in __skb_incr_checksum_unnecessary()
4613 skb->ip_summed = CHECKSUM_UNNECESSARY; in __skb_incr_checksum_unnecessary()
4614 skb->csum_level = 0; in __skb_incr_checksum_unnecessary()
4620 if (skb->ip_summed == CHECKSUM_UNNECESSARY) { in __skb_reset_checksum_unnecessary()
4621 skb->ip_summed = CHECKSUM_NONE; in __skb_reset_checksum_unnecessary()
4622 skb->csum_level = 0; in __skb_reset_checksum_unnecessary()
4636 skb->csum_valid = 1; in __skb_checksum_validate_needed()
4649 /* Unset checksum-complete
4652 * (uncompressed for instance) and checksum-complete value is
4657 if (skb->ip_summed == CHECKSUM_COMPLETE) in skb_checksum_complete_unset()
4658 skb->ip_summed = CHECKSUM_NONE; in skb_checksum_complete_unset()
4666 * checksum is stored in skb->csum for use in __skb_checksum_complete
4667 * non-zero: value of invalid checksum
4674 if (skb->ip_summed == CHECKSUM_COMPLETE) { in __skb_checksum_validate_complete()
4675 if (!csum_fold(csum_add(psum, skb->csum))) { in __skb_checksum_validate_complete()
4676 skb->csum_valid = 1; in __skb_checksum_validate_complete()
4681 skb->csum = psum; in __skb_checksum_validate_complete()
4683 if (complete || skb->len <= CHECKSUM_BREAK) { in __skb_checksum_validate_complete()
4687 skb->csum_valid = !csum; in __skb_checksum_validate_complete()
4707 * non-zero: value of invalid checksum
4713 skb->csum_valid = 0; \
4738 return (skb->ip_summed == CHECKSUM_NONE && skb->csum_valid); in __skb_checksum_convert_check()
4743 skb->csum = ~pseudo; in __skb_checksum_convert()
4744 skb->ip_summed = CHECKSUM_COMPLETE; in __skb_checksum_convert()
4756 skb->ip_summed = CHECKSUM_PARTIAL; in skb_remcsum_adjust_partial()
4757 skb->csum_start = ((unsigned char *)ptr + start) - skb->head; in skb_remcsum_adjust_partial()
4758 skb->csum_offset = offset - start; in skb_remcsum_adjust_partial()
4762 * When called, ptr indicates the starting point for skb->csum when
4764 * here, skb_postpull_rcsum is done so skb->csum start is ptr.
4776 if (unlikely(skb->ip_summed != CHECKSUM_COMPLETE)) { in skb_remcsum_process()
4778 skb_postpull_rcsum(skb, skb->data, ptr - (void *)skb->data); in skb_remcsum_process()
4781 delta = remcsum_adjust(ptr, skb->csum, start, offset); in skb_remcsum_process()
4783 /* Adjust skb->csum since we changed the packet */ in skb_remcsum_process()
4784 skb->csum = csum_add(skb->csum, delta); in skb_remcsum_process()
4790 return (void *)(skb->_nfct & NFCT_PTRMASK); in skb_nfct()
4799 return skb->_nfct; in skb_get_nfct()
4808 skb->slow_gro |= !!nfct; in skb_set_nfct()
4809 skb->_nfct = nfct; in skb_set_nfct()
4834 * struct skb_ext - sk_buff extensions
4859 if (skb->active_extensions) in skb_ext_put()
4860 __skb_ext_put(skb->extensions); in skb_ext_put()
4866 dst->active_extensions = src->active_extensions; in __skb_ext_copy()
4868 if (src->active_extensions) { in __skb_ext_copy()
4869 struct skb_ext *ext = src->extensions; in __skb_ext_copy()
4871 refcount_inc(&ext->refcnt); in __skb_ext_copy()
4872 dst->extensions = ext; in __skb_ext_copy()
4884 return !!ext->offset[i]; in __skb_ext_exist()
4889 return skb->active_extensions & (1 << id); in skb_ext_exist()
4901 struct skb_ext *ext = skb->extensions; in skb_ext_find()
4903 return (void *)ext + (ext->offset[id] << 3); in skb_ext_find()
4911 if (unlikely(skb->active_extensions)) { in skb_ext_reset()
4912 __skb_ext_put(skb->extensions); in skb_ext_reset()
4913 skb->active_extensions = 0; in skb_ext_reset()
4919 return unlikely(skb->active_extensions); in skb_has_extensions()
4934 skb->_nfct = 0; in nf_reset_ct()
4941 skb->nf_trace = 0; in nf_reset_trace()
4948 skb->ipvs_property = 0; in ipvs_reset()
4957 dst->_nfct = src->_nfct; in __nf_copy()
4962 dst->nf_trace = src->nf_trace; in __nf_copy()
4971 dst->slow_gro = src->slow_gro; in nf_copy()
4978 to->secmark = from->secmark; in skb_copy_secmark()
4983 skb->secmark = 0; in skb_init_secmark()
5004 return !skb->destructor && in skb_irq_freeable()
5007 !skb->_skb_refdst && in skb_irq_freeable()
5013 skb->queue_mapping = queue_mapping; in skb_set_queue_mapping()
5018 return skb->queue_mapping; in skb_get_queue_mapping()
5023 to->queue_mapping = from->queue_mapping; in skb_copy_queue_mapping()
5028 skb->queue_mapping = rx_queue + 1; in skb_record_rx_queue()
5033 return skb->queue_mapping - 1; in skb_get_rx_queue()
5038 return skb->queue_mapping != 0; in skb_rx_queue_recorded()
5043 skb->dst_pending_confirm = val; in skb_set_dst_pending_confirm()
5048 return skb->dst_pending_confirm != 0; in skb_get_dst_pending_confirm()
5062 return skb_shinfo(skb)->gso_size; in skb_is_gso()
5068 return skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6; in skb_is_gso_v6()
5074 return skb_shinfo(skb)->gso_type & SKB_GSO_SCTP; in skb_is_gso_sctp()
5080 return skb_shinfo(skb)->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6); in skb_is_gso_tcp()
5085 skb_shinfo(skb)->gso_size = 0; in skb_gso_reset()
5086 skb_shinfo(skb)->gso_segs = 0; in skb_gso_reset()
5087 skb_shinfo(skb)->gso_type = 0; in skb_gso_reset()
5093 if (WARN_ON_ONCE(shinfo->gso_size == GSO_BY_FRAGS)) in skb_increase_gso_size()
5095 shinfo->gso_size += increment; in skb_increase_gso_size()
5101 if (WARN_ON_ONCE(shinfo->gso_size == GSO_BY_FRAGS)) in skb_decrease_gso_size()
5103 shinfo->gso_size -= decrement; in skb_decrease_gso_size()
5114 if (skb_is_nonlinear(skb) && shinfo->gso_size != 0 && in skb_warn_if_lro()
5115 unlikely(shinfo->gso_type == 0)) { in skb_warn_if_lro()
5125 if (skb->ip_summed == CHECKSUM_COMPLETE) in skb_forward_csum()
5126 skb->ip_summed = CHECKSUM_NONE; in skb_forward_csum()
5130 * skb_checksum_none_assert - make sure skb ip_summed is CHECKSUM_NONE
5139 DEBUG_NET_WARN_ON_ONCE(skb->ip_summed != CHECKSUM_NONE); in skb_checksum_none_assert()
5150 * skb_head_is_locked - Determine if the skb->head is locked down
5160 return !skb->head_frag || skb_cloned(skb); in skb_head_is_locked()
5166 * See Documentation/networking/checksum-offloads.rst for
5169 * pseudo-header) before calling.
5180 skb->csum_offset)); in lco_csum()
5185 return csum_partial(l4_hdr, csum_start - l4_hdr, partial); in lco_csum()
5190 return skb->redirected; in skb_is_redirected()
5195 skb->redirected = 1; in skb_set_redirected()
5197 skb->from_ingress = from_ingress; in skb_set_redirected()
5198 if (skb->from_ingress) in skb_set_redirected()
5205 skb->redirected = 0; in skb_reset_redirect()
5211 skb->redirected = 1; in skb_set_redirected_noclear()
5213 skb->from_ingress = from_ingress; in skb_set_redirected_noclear()
5220 return skb->csum_not_inet; in skb_csum_is_sctp()
5228 skb->ip_summed = CHECKSUM_NONE; in skb_reset_csum_not_inet()
5230 skb->csum_not_inet = 0; in skb_reset_csum_not_inet()
5238 skb->kcov_handle = kcov_handle; in skb_set_kcov_handle()
5245 return skb->kcov_handle; in skb_get_kcov_handle()
5254 skb->pp_recycle = 1; in skb_mark_for_recycle()