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authorJakub Kicinski <kuba@kernel.org>2022-09-22 13:02:10 -0700
committerJakub Kicinski <kuba@kernel.org>2022-09-22 13:02:10 -0700
commit0140a7168f8b2732f622fa2c500f1f8be212382a (patch)
treec68688552d97f914398c53e233acc696b86afc65 /net/ipv4/tcp.c
parentf8b2cce430d92ec927915ba4bc8088fe99659dbc (diff)
parent504c25cb76a9cb805407f7701b25a1fbd48605fa (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/ethernet/freescale/fec.h 7b15515fc1ca ("Revert "fec: Restart PPS after link state change"") 40c79ce13b03 ("net: fec: add stop mode support for imx8 platform") https://lore.kernel.org/all/20220921105337.62b41047@canb.auug.org.au/ drivers/pinctrl/pinctrl-ocelot.c c297561bc98a ("pinctrl: ocelot: Fix interrupt controller") 181f604b33cd ("pinctrl: ocelot: add ability to be used in a non-mmio configuration") https://lore.kernel.org/all/20220921110032.7cd28114@canb.auug.org.au/ tools/testing/selftests/drivers/net/bonding/Makefile bbb774d921e2 ("net: Add tests for bonding and team address list management") 152e8ec77640 ("selftests/bonding: add a test for bonding lladdr target") https://lore.kernel.org/all/20220921110437.5b7dbd82@canb.auug.org.au/ drivers/net/can/usb/gs_usb.c 5440428b3da6 ("can: gs_usb: gs_can_open(): fix race dev->can.state condition") 45dfa45f52e6 ("can: gs_usb: add RX and TX hardware timestamp support") https://lore.kernel.org/all/84f45a7d-92b6-4dc5-d7a1-072152fab6ff@tessares.net/ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4/tcp.c')
-rw-r--r--net/ipv4/tcp.c29
1 files changed, 19 insertions, 10 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 829beee3fa32..5702ca9b952d 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1761,19 +1761,28 @@ int tcp_read_skb(struct sock *sk, skb_read_actor_t recv_actor)
if (sk->sk_state == TCP_LISTEN)
return -ENOTCONN;
- skb = tcp_recv_skb(sk, seq, &offset);
- if (!skb)
- return 0;
+ while ((skb = tcp_recv_skb(sk, seq, &offset)) != NULL) {
+ u8 tcp_flags;
+ int used;
- __skb_unlink(skb, &sk->sk_receive_queue);
- WARN_ON(!skb_set_owner_sk_safe(skb, sk));
- copied = recv_actor(sk, skb);
- if (copied >= 0) {
- seq += copied;
- if (TCP_SKB_CB(skb)->tcp_flags & TCPHDR_FIN)
+ __skb_unlink(skb, &sk->sk_receive_queue);
+ WARN_ON_ONCE(!skb_set_owner_sk_safe(skb, sk));
+ tcp_flags = TCP_SKB_CB(skb)->tcp_flags;
+ used = recv_actor(sk, skb);
+ consume_skb(skb);
+ if (used < 0) {
+ if (!copied)
+ copied = used;
+ break;
+ }
+ seq += used;
+ copied += used;
+
+ if (tcp_flags & TCPHDR_FIN) {
++seq;
+ break;
+ }
}
- consume_skb(skb);
WRITE_ONCE(tp->copied_seq, seq);
tcp_rcv_space_adjust(sk);