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-rw-r--r--MAINTAINERS6
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h1
-rw-r--r--drivers/net/ethernet/intel/e1000/e1000_main.c21
-rw-r--r--drivers/net/ethernet/intel/i40e/i40e_main.c1
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/stmmac_main.c22
-rw-r--r--drivers/net/tun.c4
-rw-r--r--include/linux/netdevice.h5
-rw-r--r--include/net/act_api.h1
-rw-r--r--include/net/sctp/sctp.h6
-rw-r--r--lib/test_bpf.c229
-rw-r--r--net/core/dev.c1
-rw-r--r--net/core/netpoll.c3
-rw-r--r--net/core/sock.c9
-rw-r--r--net/ipv4/fou.c6
-rw-r--r--net/ipv4/gre_offload.c8
-rw-r--r--net/ipv4/ip_gre.c13
-rw-r--r--net/ipv6/ip6_output.c8
-rw-r--r--net/ipv6/ip6_tunnel.c2
-rw-r--r--net/l2tp/l2tp_ip.c8
-rw-r--r--net/l2tp/l2tp_ip6.c8
-rw-r--r--net/mpls/af_mpls.c3
-rw-r--r--net/packet/af_packet.c2
-rw-r--r--net/rds/ib_recv.c2
-rw-r--r--net/rds/page.c4
-rw-r--r--net/sctp/output.c3
-rw-r--r--net/vmw_vsock/vmci_transport.c4
-rw-r--r--samples/bpf/Makefile12
-rw-r--r--samples/bpf/bpf_helpers.h26
-rw-r--r--samples/bpf/map_perf_test_user.c1
-rw-r--r--samples/bpf/spintest_kern.c2
-rw-r--r--samples/bpf/tracex2_kern.c4
-rw-r--r--samples/bpf/tracex4_kern.c2
32 files changed, 360 insertions, 67 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index 7ba7bc485d74..8cc99ff05b97 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4302,7 +4302,7 @@ F: drivers/net/ethernet/agere/
ETHERNET BRIDGE
M: Stephen Hemminger <stephen@networkplumber.org>
-L: bridge@lists.linux-foundation.org
+L: bridge@lists.linux-foundation.org (moderated for non-subscribers)
L: netdev@vger.kernel.org
W: http://www.linuxfoundation.org/en/Net:Bridge
S: Maintained
@@ -5750,7 +5750,7 @@ R: Don Skidmore <donald.c.skidmore@intel.com>
R: Bruce Allan <bruce.w.allan@intel.com>
R: John Ronciak <john.ronciak@intel.com>
R: Mitch Williams <mitch.a.williams@intel.com>
-L: intel-wired-lan@lists.osuosl.org
+L: intel-wired-lan@lists.osuosl.org (moderated for non-subscribers)
W: http://www.intel.com/support/feedback.htm
W: http://e1000.sourceforge.net/
Q: http://patchwork.ozlabs.org/project/intel-wired-lan/list/
@@ -7575,7 +7575,7 @@ F: drivers/infiniband/hw/nes/
NETEM NETWORK EMULATOR
M: Stephen Hemminger <stephen@networkplumber.org>
-L: netem@lists.linux-foundation.org
+L: netem@lists.linux-foundation.org (moderated for non-subscribers)
S: Maintained
F: net/sched/sch_netem.c
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h b/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h
index 06bc2d2e7a73..a2cdfc1261dc 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_pci_id_tbl.h
@@ -166,6 +166,7 @@ CH_PCI_DEVICE_ID_TABLE_DEFINE_BEGIN
CH_PCI_ID_TABLE_FENTRY(0x5099), /* Custom 2x40G QSFP */
CH_PCI_ID_TABLE_FENTRY(0x509a), /* Custom T520-CR */
CH_PCI_ID_TABLE_FENTRY(0x509b), /* Custom T540-CR LOM */
+ CH_PCI_ID_TABLE_FENTRY(0x509c), /* Custom T520-CR*/
/* T6 adapters:
*/
diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index 3fc7bde699ba..ae90d4f12b70 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -3106,7 +3106,7 @@ static int e1000_maybe_stop_tx(struct net_device *netdev,
return __e1000_maybe_stop_tx(netdev, size);
}
-#define TXD_USE_COUNT(S, X) (((S) >> (X)) + 1)
+#define TXD_USE_COUNT(S, X) (((S) + ((1 << (X)) - 1)) >> (X))
static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
struct net_device *netdev)
{
@@ -3256,12 +3256,29 @@ static netdev_tx_t e1000_xmit_frame(struct sk_buff *skb,
nr_frags, mss);
if (count) {
+ /* The descriptors needed is higher than other Intel drivers
+ * due to a number of workarounds. The breakdown is below:
+ * Data descriptors: MAX_SKB_FRAGS + 1
+ * Context Descriptor: 1
+ * Keep head from touching tail: 2
+ * Workarounds: 3
+ */
+ int desc_needed = MAX_SKB_FRAGS + 7;
+
netdev_sent_queue(netdev, skb->len);
skb_tx_timestamp(skb);
e1000_tx_queue(adapter, tx_ring, tx_flags, count);
+
+ /* 82544 potentially requires twice as many data descriptors
+ * in order to guarantee buffers don't end on evenly-aligned
+ * dwords
+ */
+ if (adapter->pcix_82544)
+ desc_needed += MAX_SKB_FRAGS + 1;
+
/* Make sure there is space in the ring for the next send. */
- e1000_maybe_stop_tx(netdev, tx_ring, MAX_SKB_FRAGS + 2);
+ e1000_maybe_stop_tx(netdev, tx_ring, desc_needed);
if (!skb->xmit_more ||
netif_xmit_stopped(netdev_get_tx_queue(netdev, 0))) {
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 67006431726a..344912957cab 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -8559,6 +8559,7 @@ static int i40e_sw_init(struct i40e_pf *pf)
I40E_FLAG_OUTER_UDP_CSUM_CAPABLE |
I40E_FLAG_WB_ON_ITR_CAPABLE |
I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE |
+ I40E_FLAG_NO_PCI_LINK_CHECK |
I40E_FLAG_100M_SGMII_CAPABLE |
I40E_FLAG_USE_SET_LLDP_MIB |
I40E_FLAG_GENEVE_OFFLOAD_CAPABLE;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 78464fa7fe1f..fcbd4be562e2 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -288,10 +288,6 @@ bool stmmac_eee_init(struct stmmac_priv *priv)
(priv->pcs == STMMAC_PCS_RTBI))
goto out;
- /* Never init EEE in case of a switch is attached */
- if (priv->phydev->is_pseudo_fixed_link)
- goto out;
-
/* MAC core supports the EEE feature. */
if (priv->dma_cap.eee) {
int tx_lpi_timer = priv->tx_lpi_timer;
@@ -771,10 +767,16 @@ static void stmmac_adjust_link(struct net_device *dev)
spin_unlock_irqrestore(&priv->lock, flags);
- /* At this stage, it could be needed to setup the EEE or adjust some
- * MAC related HW registers.
- */
- priv->eee_enabled = stmmac_eee_init(priv);
+ if (phydev->is_pseudo_fixed_link)
+ /* Stop PHY layer to call the hook to adjust the link in case
+ * of a switch is attached to the stmmac driver.
+ */
+ phydev->irq = PHY_IGNORE_INTERRUPT;
+ else
+ /* At this stage, init the EEE if supported.
+ * Never called in case of fixed_link.
+ */
+ priv->eee_enabled = stmmac_eee_init(priv);
}
/**
@@ -865,10 +867,6 @@ static int stmmac_init_phy(struct net_device *dev)
return -ENODEV;
}
- /* If attached to a switch, there is no reason to poll phy handler */
- if (phydev->is_pseudo_fixed_link)
- phydev->irq = PHY_IGNORE_INTERRUPT;
-
pr_debug("stmmac_init_phy: %s: attached to PHY (UID 0x%x)"
" Link = %d\n", dev->name, phydev->phy_id, phydev->link);
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 510e90a6bb26..2c9e45f50edb 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1015,7 +1015,6 @@ static void tun_net_init(struct net_device *dev)
/* Zero header length */
dev->type = ARPHRD_NONE;
dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
- dev->tx_queue_len = TUN_READQ_SIZE; /* We prefer our own queue length */
break;
case IFF_TAP:
@@ -1027,7 +1026,6 @@ static void tun_net_init(struct net_device *dev)
eth_hw_addr_random(dev);
- dev->tx_queue_len = TUN_READQ_SIZE; /* We prefer our own queue length */
break;
}
}
@@ -1481,6 +1479,8 @@ static void tun_setup(struct net_device *dev)
dev->ethtool_ops = &tun_ethtool_ops;
dev->destructor = tun_free_netdev;
+ /* We prefer our own queue length */
+ dev->tx_queue_len = TUN_READQ_SIZE;
}
/* Trivial set of netlink ops to allow deleting tun or tap
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index cb0d5d09c2e4..8395308a2445 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2120,7 +2120,10 @@ struct napi_gro_cb {
/* Used in foo-over-udp, set in udp[46]_gro_receive */
u8 is_ipv6:1;
- /* 7 bit hole */
+ /* Used in GRE, set in fou/gue_gro_receive */
+ u8 is_fou:1;
+
+ /* 6 bit hole */
/* used to support CHECKSUM_COMPLETE for tunneling protocols */
__wsum csum;
diff --git a/include/net/act_api.h b/include/net/act_api.h
index 2a19fe111c78..03e322b30218 100644
--- a/include/net/act_api.h
+++ b/include/net/act_api.h
@@ -135,6 +135,7 @@ void tcf_hashinfo_destroy(const struct tc_action_ops *ops,
static inline void tc_action_net_exit(struct tc_action_net *tn)
{
tcf_hashinfo_destroy(tn->ops, tn->hinfo);
+ kfree(tn->hinfo);
}
int tcf_generic_walker(struct tc_action_net *tn, struct sk_buff *skb,
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 65521cfdcade..03fb33efcae2 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -386,11 +386,9 @@ static inline struct list_head *sctp_list_dequeue(struct list_head *list)
{
struct list_head *result = NULL;
- if (list->next != list) {
+ if (!list_empty(list)) {
result = list->next;
- list->next = result->next;
- list->next->prev = list;
- INIT_LIST_HEAD(result);
+ list_del_init(result);
}
return result;
}
diff --git a/lib/test_bpf.c b/lib/test_bpf.c
index 27a7a26b1ece..8f22fbedc3a6 100644
--- a/lib/test_bpf.c
+++ b/lib/test_bpf.c
@@ -2444,6 +2444,22 @@ static struct bpf_test tests[] = {
{ { 0, 4294967295U } },
},
{
+ "ALU_ADD_X: 2 + 4294967294 = 0",
+ .u.insns_int = {
+ BPF_LD_IMM64(R0, 2),
+ BPF_LD_IMM64(R1, 4294967294U),
+ BPF_ALU32_REG(BPF_ADD, R0, R1),
+ BPF_JMP_IMM(BPF_JEQ, R0, 0, 2),
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
+ {
"ALU64_ADD_X: 1 + 2 = 3",
.u.insns_int = {
BPF_LD_IMM64(R0, 1),
@@ -2467,6 +2483,23 @@ static struct bpf_test tests[] = {
{ },
{ { 0, 4294967295U } },
},
+ {
+ "ALU64_ADD_X: 2 + 4294967294 = 4294967296",
+ .u.insns_int = {
+ BPF_LD_IMM64(R0, 2),
+ BPF_LD_IMM64(R1, 4294967294U),
+ BPF_LD_IMM64(R2, 4294967296ULL),
+ BPF_ALU64_REG(BPF_ADD, R0, R1),
+ BPF_JMP_REG(BPF_JEQ, R0, R2, 2),
+ BPF_MOV32_IMM(R0, 0),
+ BPF_EXIT_INSN(),
+ BPF_MOV32_IMM(R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
/* BPF_ALU | BPF_ADD | BPF_K */
{
"ALU_ADD_K: 1 + 2 = 3",
@@ -2502,6 +2535,21 @@ static struct bpf_test tests[] = {
{ { 0, 4294967295U } },
},
{
+ "ALU_ADD_K: 4294967294 + 2 = 0",
+ .u.insns_int = {
+ BPF_LD_IMM64(R0, 4294967294U),
+ BPF_ALU32_IMM(BPF_ADD, R0, 2),
+ BPF_JMP_IMM(BPF_JEQ, R0, 0, 2),
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
+ {
"ALU_ADD_K: 0 + (-1) = 0x00000000ffffffff",
.u.insns_int = {
BPF_LD_IMM64(R2, 0x0),
@@ -2518,6 +2566,70 @@ static struct bpf_test tests[] = {
{ { 0, 0x1 } },
},
{
+ "ALU_ADD_K: 0 + 0xffff = 0xffff",
+ .u.insns_int = {
+ BPF_LD_IMM64(R2, 0x0),
+ BPF_LD_IMM64(R3, 0xffff),
+ BPF_ALU32_IMM(BPF_ADD, R2, 0xffff),
+ BPF_JMP_REG(BPF_JEQ, R2, R3, 2),
+ BPF_MOV32_IMM(R0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV32_IMM(R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 0x1 } },
+ },
+ {
+ "ALU_ADD_K: 0 + 0x7fffffff = 0x7fffffff",
+ .u.insns_int = {
+ BPF_LD_IMM64(R2, 0x0),
+ BPF_LD_IMM64(R3, 0x7fffffff),
+ BPF_ALU32_IMM(BPF_ADD, R2, 0x7fffffff),
+ BPF_JMP_REG(BPF_JEQ, R2, R3, 2),
+ BPF_MOV32_IMM(R0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV32_IMM(R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 0x1 } },
+ },
+ {
+ "ALU_ADD_K: 0 + 0x80000000 = 0x80000000",
+ .u.insns_int = {
+ BPF_LD_IMM64(R2, 0x0),
+ BPF_LD_IMM64(R3, 0x80000000),
+ BPF_ALU32_IMM(BPF_ADD, R2, 0x80000000),
+ BPF_JMP_REG(BPF_JEQ, R2, R3, 2),
+ BPF_MOV32_IMM(R0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV32_IMM(R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 0x1 } },
+ },
+ {
+ "ALU_ADD_K: 0 + 0x80008000 = 0x80008000",
+ .u.insns_int = {
+ BPF_LD_IMM64(R2, 0x0),
+ BPF_LD_IMM64(R3, 0x80008000),
+ BPF_ALU32_IMM(BPF_ADD, R2, 0x80008000),
+ BPF_JMP_REG(BPF_JEQ, R2, R3, 2),
+ BPF_MOV32_IMM(R0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV32_IMM(R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 0x1 } },
+ },
+ {
"ALU64_ADD_K: 1 + 2 = 3",
.u.insns_int = {
BPF_LD_IMM64(R0, 1),
@@ -2551,6 +2663,22 @@ static struct bpf_test tests[] = {
{ { 0, 2147483647 } },
},
{
+ "ALU64_ADD_K: 4294967294 + 2 = 4294967296",
+ .u.insns_int = {
+ BPF_LD_IMM64(R0, 4294967294U),
+ BPF_LD_IMM64(R1, 4294967296ULL),
+ BPF_ALU64_IMM(BPF_ADD, R0, 2),
+ BPF_JMP_REG(BPF_JEQ, R0, R1, 2),
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
+ {
"ALU64_ADD_K: 2147483646 + -2147483647 = -1",
.u.insns_int = {
BPF_LD_IMM64(R0, 2147483646),
@@ -2593,6 +2721,70 @@ static struct bpf_test tests[] = {
{ },
{ { 0, 0x1 } },
},
+ {
+ "ALU64_ADD_K: 0 + 0xffff = 0xffff",
+ .u.insns_int = {
+ BPF_LD_IMM64(R2, 0x0),
+ BPF_LD_IMM64(R3, 0xffff),
+ BPF_ALU64_IMM(BPF_ADD, R2, 0xffff),
+ BPF_JMP_REG(BPF_JEQ, R2, R3, 2),
+ BPF_MOV32_IMM(R0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV32_IMM(R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 0x1 } },
+ },
+ {
+ "ALU64_ADD_K: 0 + 0x7fffffff = 0x7fffffff",
+ .u.insns_int = {
+ BPF_LD_IMM64(R2, 0x0),
+ BPF_LD_IMM64(R3, 0x7fffffff),
+ BPF_ALU64_IMM(BPF_ADD, R2, 0x7fffffff),
+ BPF_JMP_REG(BPF_JEQ, R2, R3, 2),
+ BPF_MOV32_IMM(R0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV32_IMM(R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 0x1 } },
+ },
+ {
+ "ALU64_ADD_K: 0 + 0x80000000 = 0xffffffff80000000",
+ .u.insns_int = {
+ BPF_LD_IMM64(R2, 0x0),
+ BPF_LD_IMM64(R3, 0xffffffff80000000LL),
+ BPF_ALU64_IMM(BPF_ADD, R2, 0x80000000),
+ BPF_JMP_REG(BPF_JEQ, R2, R3, 2),
+ BPF_MOV32_IMM(R0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV32_IMM(R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 0x1 } },
+ },
+ {
+ "ALU_ADD_K: 0 + 0x80008000 = 0xffffffff80008000",
+ .u.insns_int = {
+ BPF_LD_IMM64(R2, 0x0),
+ BPF_LD_IMM64(R3, 0xffffffff80008000LL),
+ BPF_ALU64_IMM(BPF_ADD, R2, 0x80008000),
+ BPF_JMP_REG(BPF_JEQ, R2, R3, 2),
+ BPF_MOV32_IMM(R0, 2),
+ BPF_EXIT_INSN(),
+ BPF_MOV32_IMM(R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 0x1 } },
+ },
/* BPF_ALU | BPF_SUB | BPF_X */
{
"ALU_SUB_X: 3 - 1 = 2",
@@ -4222,6 +4414,20 @@ static struct bpf_test tests[] = {
{ },
{ { 0, 1 } },
},
+ {
+ "JMP_JGT_K: Unsigned jump: if (-1 > 1) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, -1),
+ BPF_JMP_IMM(BPF_JGT, R1, 1, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
/* BPF_JMP | BPF_JGE | BPF_K */
{
"JMP_JGE_K: if (3 >= 2) return 1",
@@ -4303,7 +4509,7 @@ static struct bpf_test tests[] = {
.u.insns_int = {
BPF_ALU32_IMM(BPF_MOV, R0, 0),
BPF_LD_IMM64(R1, 3),
- BPF_JMP_IMM(BPF_JNE, R1, 2, 1),
+ BPF_JMP_IMM(BPF_JSET, R1, 2, 1),
BPF_EXIT_INSN(),
BPF_ALU32_IMM(BPF_MOV, R0, 1),
BPF_EXIT_INSN(),
@@ -4317,7 +4523,7 @@ static struct bpf_test tests[] = {
.u.insns_int = {
BPF_ALU32_IMM(BPF_MOV, R0, 0),
BPF_LD_IMM64(R1, 3),
- BPF_JMP_IMM(BPF_JNE, R1, 0xffffffff, 1),
+ BPF_JMP_IMM(BPF_JSET, R1, 0xffffffff, 1),
BPF_EXIT_INSN(),
BPF_ALU32_IMM(BPF_MOV, R0, 1),
BPF_EXIT_INSN(),
@@ -4404,6 +4610,21 @@ static struct bpf_test tests[] = {
{ },
{ { 0, 1 } },
},
+ {
+ "JMP_JGT_X: Unsigned jump: if (-1 > 1) return 1",
+ .u.insns_int = {
+ BPF_ALU32_IMM(BPF_MOV, R0, 0),
+ BPF_LD_IMM64(R1, -1),
+ BPF_LD_IMM64(R2, 1),
+ BPF_JMP_REG(BPF_JGT, R1, R2, 1),
+ BPF_EXIT_INSN(),
+ BPF_ALU32_IMM(BPF_MOV, R0, 1),
+ BPF_EXIT_INSN(),
+ },
+ INTERNAL,
+ { },
+ { { 0, 1 } },
+ },
/* BPF_JMP | BPF_JGE | BPF_X */
{
"JMP_JGE_X: if (3 >= 2) return 1",
@@ -4474,7 +4695,7 @@ static struct bpf_test tests[] = {
BPF_ALU32_IMM(BPF_MOV, R0, 0),
BPF_LD_IMM64(R1, 3),
BPF_LD_IMM64(R2, 2),
- BPF_JMP_REG(BPF_JNE, R1, R2, 1),
+ BPF_JMP_REG(BPF_JSET, R1, R2, 1),
BPF_EXIT_INSN(),
BPF_ALU32_IMM(BPF_MOV, R0, 1),
BPF_EXIT_INSN(),
@@ -4489,7 +4710,7 @@ static struct bpf_test tests[] = {
BPF_ALU32_IMM(BPF_MOV, R0, 0),
BPF_LD_IMM64(R1, 3),
BPF_LD_IMM64(R2, 0xffffffff),
- BPF_JMP_REG(BPF_JNE, R1, R2, 1),
+ BPF_JMP_REG(BPF_JSET, R1, R2, 1),
BPF_EXIT_INSN(),
BPF_ALU32_IMM(BPF_MOV, R0, 1),
BPF_EXIT_INSN(),
diff --git a/net/core/dev.c b/net/core/dev.c
index b9bcbe77d913..77a71cd68535 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4439,6 +4439,7 @@ static enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff
NAPI_GRO_CB(skb)->flush = 0;
NAPI_GRO_CB(skb)->free = 0;
NAPI_GRO_CB(skb)->encap_mark = 0;
+ NAPI_GRO_CB(skb)->is_fou = 0;
NAPI_GRO_CB(skb)->gro_remcsum_start = 0;
/* Setup for GRO checksum validation */
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index a57bd17805b4..94acfc89ad97 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -603,6 +603,7 @@ int __netpoll_setup(struct netpoll *np, struct net_device *ndev)
const struct net_device_ops *ops;
int err;
+ np->dev = ndev;
strlcpy(np->dev_name, ndev->name, IFNAMSIZ);
INIT_WORK(&np->cleanup_work, netpoll_async_cleanup);
@@ -669,7 +670,6 @@ int netpoll_setup(struct netpoll *np)
goto unlock;
}
dev_hold(ndev);
- np->dev = ndev;
if (netdev_master_upper_dev_get(ndev)) {
np_err(np, "%s is a slave device, aborting\n", np->dev_name);
@@ -770,7 +770,6 @@ int netpoll_setup(struct netpoll *np)
return 0;
put:
- np->dev = NULL;
dev_put(ndev);
unlock:
rtnl_unlock();
diff --git a/net/core/sock.c b/net/core/sock.c
index b67b9aedb230..7e73c26b6bb4 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -221,7 +221,8 @@ static const char *const af_family_key_strings[AF_MAX+1] = {
"sk_lock-AF_TIPC" , "sk_lock-AF_BLUETOOTH", "sk_lock-IUCV" ,
"sk_lock-AF_RXRPC" , "sk_lock-AF_ISDN" , "sk_lock-AF_PHONET" ,
"sk_lock-AF_IEEE802154", "sk_lock-AF_CAIF" , "sk_lock-AF_ALG" ,
- "sk_lock-AF_NFC" , "sk_lock-AF_VSOCK" , "sk_lock-AF_MAX"
+ "sk_lock-AF_NFC" , "sk_lock-AF_VSOCK" , "sk_lock-AF_KCM" ,
+ "sk_lock-AF_MAX"
};
static const char *const af_family_slock_key_strings[AF_MAX+1] = {
"slock-AF_UNSPEC", "slock-AF_UNIX" , "slock-AF_INET" ,
@@ -237,7 +238,8 @@ static const char *const af_family_slock_key_strings[AF_MAX+1] = {
"slock-AF_TIPC" , "slock-AF_BLUETOOTH", "slock-AF_IUCV" ,
"slock-AF_RXRPC" , "slock-AF_ISDN" , "slock-AF_PHONET" ,
"slock-AF_IEEE802154", "slock-AF_CAIF" , "slock-AF_ALG" ,
- "slock-AF_NFC" , "slock-AF_VSOCK" ,"slock-AF_MAX"
+ "slock-AF_NFC" , "slock-AF_VSOCK" ,"slock-AF_KCM" ,
+ "slock-AF_MAX"
};
static const char *const af_family_clock_key_strings[AF_MAX+1] = {
"clock-AF_UNSPEC", "clock-AF_UNIX" , "clock-AF_INET" ,
@@ -253,7 +255,8 @@ static const char *const af_family_clock_key_strings[AF_MAX+1] = {
"clock-AF_TIPC" , "clock-AF_BLUETOOTH", "clock-AF_IUCV" ,
"clock-AF_RXRPC" , "clock-AF_ISDN" , "clock-AF_PHONET" ,
"clock-AF_IEEE802154", "clock-AF_CAIF" , "clock-AF_ALG" ,
- "clock-AF_NFC" , "clock-AF_VSOCK" , "clock-AF_MAX"
+ "clock-AF_NFC" , "clock-AF_VSOCK" , "clock-AF_KCM" ,
+ "clock-AF_MAX"
};
/*
diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
index 5a94aea280d3..a39068b4a4d9 100644
--- a/net/ipv4/fou.c
+++ b/net/ipv4/fou.c
@@ -203,6 +203,9 @@ static struct sk_buff **fou_gro_receive(struct sk_buff **head,
*/
NAPI_GRO_CB(skb)->encap_mark = 0;
+ /* Flag this frame as already having an outer encap header */
+ NAPI_GRO_CB(skb)->is_fou = 1;
+
rcu_read_lock();
offloads = NAPI_GRO_CB(skb)->is_ipv6 ? inet6_offloads : inet_offloads;
ops = rcu_dereference(offloads[proto]);
@@ -368,6 +371,9 @@ static struct sk_buff **gue_gro_receive(struct sk_buff **head,
*/
NAPI_GRO_CB(skb)->encap_mark = 0;
+ /* Flag this frame as already having an outer encap header */
+ NAPI_GRO_CB(skb)->is_fou = 1;
+
rcu_read_lock();
offloads = NAPI_GRO_CB(skb)->is_ipv6 ? inet6_offloads : inet_offloads;
ops = rcu_dereference(offloads[guehdr->proto_ctype]);
diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c
index c47539d04b88..6a5bd4317866 100644
--- a/net/ipv4/gre_offload.c
+++ b/net/ipv4/gre_offload.c
@@ -150,6 +150,14 @@ static struct sk_buff **gre_gro_receive(struct sk_buff **head,
if ((greh->flags & ~(GRE_KEY|GRE_CSUM)) != 0)
goto out;
+ /* We can only support GRE_CSUM if we can track the location of
+ * the GRE header. In the case of FOU/GUE we cannot because the
+ * outer UDP header displaces the GRE header leaving us in a state
+ * of limbo.
+ */
+ if ((greh->flags & GRE_CSUM) && NAPI_GRO_CB(skb)->is_fou)
+ goto out;
+
type = greh->protocol;
rcu_read_lock();
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 31936d387cfd..af5d1f38217f 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -862,9 +862,16 @@ static void __gre_tunnel_init(struct net_device *dev)
dev->hw_features |= GRE_FEATURES;
if (!(tunnel->parms.o_flags & TUNNEL_SEQ)) {
- /* TCP offload with GRE SEQ is not supported. */
- dev->features |= NETIF_F_GSO_SOFTWARE;
- dev->hw_features |= NETIF_F_GSO_SOFTWARE;
+ /* TCP offload with GRE SEQ is not supported, nor
+ * can we support 2 levels of outer headers requiring
+ * an update.
+ */
+ if (!(tunnel->parms.o_flags & TUNNEL_CSUM) ||
+ (tunnel->encap.type == TUNNEL_ENCAP_NONE)) {
+ dev->features |= NETIF_F_GSO_SOFTWARE;
+ dev->hw_features |= NETIF_F_GSO_SOFTWARE;
+ }
+
/* Can use a lockless transmit, unless we generate
* output sequences
*/
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 9428345d3a07..bc972e7152c7 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1090,8 +1090,8 @@ static inline int ip6_ufo_append_data(struct sock *sk,
int getfrag(void *from, char *to, int offset, int len,
int odd, struct sk_buff *skb),
void *from, int length, int hh_len, int fragheaderlen,
- int transhdrlen, int mtu, unsigned int flags,
- const struct flowi6 *fl6)
+ int exthdrlen, int transhdrlen, int mtu,
+ unsigned int flags, const struct flowi6 *fl6)
{
struct sk_buff *skb;
@@ -1116,7 +1116,7 @@ static inline int ip6_ufo_append_data(struct sock *sk,
skb_put(skb, fragheaderlen + transhdrlen);
/* initialize network header pointer */
- skb_reset_network_header(skb);
+ skb_set_network_header(skb, exthdrlen);
/* initialize protocol header pointer */
skb->transport_header = skb->network_header + fragheaderlen;
@@ -1358,7 +1358,7 @@ emsgsize:
(rt->dst.dev->features & NETIF_F_UFO) &&
(sk->sk_type == SOCK_DGRAM) && !udp_get_no_check6_tx(sk)) {
err = ip6_ufo_append_data(sk, queue, getfrag, from, length,
- hh_len, fragheaderlen,
+ hh_len, fragheaderlen, exthdrlen,
transhdrlen, mtu, flags, fl6);
if (err)
goto error;
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index eb2ac4bb09ce..1f20345cbc97 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -252,12 +252,12 @@ static int ip6_tnl_create2(struct net_device *dev)
t = netdev_priv(dev);
+ dev->rtnl_link_ops = &ip6_link_ops;
err = register_netdevice(dev);
if (err < 0)
goto out;
strcpy(t->parms.name, dev->name);
- dev->rtnl_link_ops = &ip6_link_ops;
dev_hold(dev);
ip6_tnl_link(ip6n, t);
diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
index ec22078b0914..42de4ccd159f 100644
--- a/net/l2tp/l2tp_ip.c
+++ b/net/l2tp/l2tp_ip.c
@@ -123,12 +123,11 @@ static int l2tp_ip_recv(struct sk_buff *skb)
struct l2tp_tunnel *tunnel = NULL;
int length;
- /* Point to L2TP header */
- optr = ptr = skb->data;
-
if (!pskb_may_pull(skb, 4))
goto discard;
+ /* Point to L2TP header */
+ optr = ptr = skb->data;
session_id = ntohl(*((__be32 *) ptr));
ptr += 4;
@@ -156,6 +155,9 @@ static int l2tp_ip_recv(struct sk_buff *skb)
if (!pskb_may_pull(skb, length))
goto discard;
+ /* Point to L2TP header */
+ optr = ptr = skb->data;
+ ptr += 4;
pr_debug("%s: ip recv\n", tunnel->name);
print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, ptr, length);
}
diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
index 6b54ff3ff4cb..cd479903d943 100644
--- a/net/l2tp/l2tp_ip6.c
+++ b/net/l2tp/l2tp_ip6.c
@@ -136,12 +136,11 @@ static int l2tp_ip6_recv(struct sk_buff *skb)
struct l2tp_tunnel *tunnel = NULL;
int length;
- /* Point to L2TP header */
- optr = ptr = skb->data;
-
if (!pskb_may_pull(skb, 4))
goto discard;
+ /* Point to L2TP header */
+ optr = ptr = skb->data;
session_id = ntohl(*((__be32 *) ptr));
ptr += 4;
@@ -169,6 +168,9 @@ static int l2tp_ip6_recv(struct sk_buff *skb)
if (!pskb_may_pull(skb, length))
goto discard;
+ /* Point to L2TP header */
+ optr = ptr = skb->data;
+ ptr += 4;
pr_debug("%s: ip recv\n", tunnel->name);
print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, ptr, length);
}
diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c
index b18c5ed42d95..0b80a7140cc4 100644
--- a/net/mpls/af_mpls.c
+++ b/net/mpls/af_mpls.c
@@ -543,6 +543,9 @@ static struct net_device *find_outdev(struct net *net,
if (!dev)
return ERR_PTR(-ENODEV);
+ if (IS_ERR(dev))
+ return dev;
+
/* The caller is holding rtnl anyways, so release the dev reference */
dev_put(dev);
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 1ecfa710ca98..f12c17f355d9 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -4151,7 +4151,7 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u,
/* Opening a Tx-ring is NOT supported in TPACKET_V3 */
if (!closing && tx_ring && (po->tp_version > TPACKET_V2)) {
- WARN(1, "Tx-ring is not supported.\n");
+ net_warn_ratelimited("Tx-ring is not supported.\n");
goto out;
}
diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c
index 977fb86065b7..abc8cc805e8d 100644
--- a/net/rds/ib_recv.c
+++ b/net/rds/ib_recv.c
@@ -796,7 +796,7 @@ static void rds_ib_cong_recv(struct rds_connection *conn,
addr = kmap_atomic(sg_page(&frag->f_sg));
- src = addr + frag_off;
+ src = addr + frag->f_sg.offset + frag_off;
dst = (void *)map->m_page_addrs[map_page] + map_off;
for (k = 0; k < to_copy; k += 8) {
/* Record ports that became uncongested, ie
diff --git a/net/rds/page.c b/net/rds/page.c
index 616f21f4e7d7..e2b5a5832d3d 100644
--- a/net/rds/page.c
+++ b/net/rds/page.c
@@ -135,8 +135,8 @@ int rds_page_remainder_alloc(struct scatterlist *scat, unsigned long bytes,
if (rem->r_offset != 0)
rds_stats_inc(s_page_remainder_hit);
- rem->r_offset += bytes;
- if (rem->r_offset == PAGE_SIZE) {
+ rem->r_offset += ALIGN(bytes, 8);
+ if (rem->r_offset >= PAGE_SIZE) {
__free_page(rem->r_page);
rem->r_page = NULL;
}
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 97745351d58c..9844fe573029 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -705,7 +705,8 @@ static sctp_xmit_t sctp_packet_can_append_data(struct sctp_packet *packet,
/* Check whether this chunk and all the rest of pending data will fit
* or delay in hopes of bundling a full sized packet.
*/
- if (chunk->skb->len + q->out_qlen >= transport->pathmtu - packet->overhead)
+ if (chunk->skb->len + q->out_qlen >
+ transport->pathmtu - packet->overhead - sizeof(sctp_data_chunk_t) - 4)
/* Enough data queued to fill a packet */
return SCTP_XMIT_OK;
diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c
index 0a369bb440e7..662bdd20a748 100644
--- a/net/vmw_vsock/vmci_transport.c
+++ b/net/vmw_vsock/vmci_transport.c
@@ -842,7 +842,7 @@ static void vmci_transport_peer_detach_cb(u32 sub_id,
* qp_handle.
*/
if (vmci_handle_is_invalid(e_payload->handle) ||
- vmci_handle_is_equal(trans->qp_handle, e_payload->handle))
+ !vmci_handle_is_equal(trans->qp_handle, e_payload->handle))
return;
/* We don't ask for delayed CBs when we subscribe to this event (we
@@ -2154,7 +2154,7 @@ module_exit(vmci_transport_exit);
MODULE_AUTHOR("VMware, Inc.");
MODULE_DESCRIPTION("VMCI transport for Virtual Sockets");
-MODULE_VERSION("1.0.2.0-k");
+MODULE_VERSION("1.0.3.0-k");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("vmware_vsock");
MODULE_ALIAS_NETPROTO(PF_VSOCK);
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index 502c9fc8db85..b820cc96a3bc 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -76,16 +76,10 @@ HOSTLOADLIBES_offwaketime += -lelf
HOSTLOADLIBES_spintest += -lelf
HOSTLOADLIBES_map_perf_test += -lelf -lrt
-# point this to your LLVM backend with bpf support
-LLC=$(srctree)/tools/bpf/llvm/bld/Debug+Asserts/bin/llc
-
-# asm/sysreg.h inline assmbly used by it is incompatible with llvm.
-# But, ehere is not easy way to fix it, so just exclude it since it is
+# asm/sysreg.h - inline assembly used by it is incompatible with llvm.
+# But, there is no easy way to fix it, so just exclude it since it is
# useless for BPF samples.
$(obj)/%.o: $(src)/%.c
clang $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) \
-D__KERNEL__ -D__ASM_SYSREG_H -Wno-unused-value -Wno-pointer-sign \
- -O2 -emit-llvm -c $< -o -| $(LLC) -march=bpf -filetype=obj -o $@
- clang $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) \
- -D__KERNEL__ -D__ASM_SYSREG_H -Wno-unused-value -Wno-pointer-sign \
- -O2 -emit-llvm -c $< -o -| $(LLC) -march=bpf -filetype=asm -o $@.s
+ -O2 -emit-llvm -c $< -o -| llc -march=bpf -filetype=obj -o $@
diff --git a/samples/bpf/bpf_helpers.h b/samples/bpf/bpf_helpers.h
index 9363500131a7..7904a2a493de 100644
--- a/samples/bpf/bpf_helpers.h
+++ b/samples/bpf/bpf_helpers.h
@@ -82,6 +82,7 @@ static int (*bpf_l4_csum_replace)(void *ctx, int off, int from, int to, int flag
#define PT_REGS_FP(x) ((x)->bp)
#define PT_REGS_RC(x) ((x)->ax)
#define PT_REGS_SP(x) ((x)->sp)
+#define PT_REGS_IP(x) ((x)->ip)
#elif defined(__s390x__)
@@ -94,6 +95,7 @@ static int (*bpf_l4_csum_replace)(void *ctx, int off, int from, int to, int flag
#define PT_REGS_FP(x) ((x)->gprs[11]) /* Works only with CONFIG_FRAME_POINTER */
#define PT_REGS_RC(x) ((x)->gprs[2])
#define PT_REGS_SP(x) ((x)->gprs[15])
+#define PT_REGS_IP(x) ((x)->ip)
#elif defined(__aarch64__)
@@ -106,6 +108,30 @@ static int (*bpf_l4_csum_replace)(void *ctx, int off, int from, int to, int flag
#define PT_REGS_FP(x) ((x)->regs[29]) /* Works only with CONFIG_FRAME_POINTER */
#define PT_REGS_RC(x) ((x)->regs[0])
#define PT_REGS_SP(x) ((x)->sp)
+#define PT_REGS_IP(x) ((x)->pc)
+
+#elif defined(__powerpc__)
+
+#define PT_REGS_PARM1(x) ((x)->gpr[3])
+#define PT_REGS_PARM2(x) ((x)->gpr[4])
+#define PT_REGS_PARM3(x) ((x)->gpr[5])
+#define PT_REGS_PARM4(x) ((x)->gpr[6])
+#define PT_REGS_PARM5(x) ((x)->gpr[7])
+#define PT_REGS_RC(x) ((x)->gpr[3])
+#define PT_REGS_SP(x) ((x)->sp)
+#define PT_REGS_IP(x) ((x)->nip)
#endif
+
+#ifdef __powerpc__
+#define BPF_KPROBE_READ_RET_IP(ip, ctx) ({ (ip) = (ctx)->link; })
+#define BPF_KRETPROBE_READ_RET_IP BPF_KPROBE_READ_RET_IP
+#else
+#define BPF_KPROBE_READ_RET_IP(ip, ctx) ({ \
+ bpf_probe_read(&(ip), sizeof(ip), (void *)PT_REGS_RET(ctx)); })
+#define BPF_KRETPROBE_READ_RET_IP(ip, ctx) ({ \
+ bpf_probe_read(&(ip), sizeof(ip), \
+ (void *)(PT_REGS_FP(ctx) + sizeof(ip))); })
+#endif
+
#endif
diff --git a/samples/bpf/map_perf_test_user.c b/samples/bpf/map_perf_test_user.c
index 95af56ec5739..3147377e8fd3 100644
--- a/samples/bpf/map_perf_test_user.c
+++ b/samples/bpf/map_perf_test_user.c
@@ -17,6 +17,7 @@
#include <linux/bpf.h>
#include <string.h>
#include <time.h>
+#include <sys/resource.h>
#include "libbpf.h"
#include "bpf_load.h"
diff --git a/samples/bpf/spintest_kern.c b/samples/bpf/spintest_kern.c
index 4b27619d91a4..ce0167d09cdc 100644
--- a/samples/bpf/spintest_kern.c
+++ b/samples/bpf/spintest_kern.c
@@ -34,7 +34,7 @@ struct bpf_map_def SEC("maps") stackmap = {
#define PROG(foo) \
int foo(struct pt_regs *ctx) \
{ \
- long v = ctx->ip, *val; \
+ long v = PT_REGS_IP(ctx), *val; \
\
val = bpf_map_lookup_elem(&my_map, &v); \
bpf_map_update_elem(&my_map, &v, &v, BPF_ANY); \
diff --git a/samples/bpf/tracex2_kern.c b/samples/bpf/tracex2_kern.c
index 09c1adc27d42..6d6eefd0d465 100644
--- a/samples/bpf/tracex2_kern.c
+++ b/samples/bpf/tracex2_kern.c
@@ -27,10 +27,10 @@ int bpf_prog2(struct pt_regs *ctx)
long init_val = 1;
long *value;
- /* x64/s390x specific: read ip of kfree_skb caller.
+ /* read ip of kfree_skb caller.
* non-portable version of __builtin_return_address(0)
*/
- bpf_probe_read(&loc, sizeof(loc), (void *)PT_REGS_RET(ctx));
+ BPF_KPROBE_READ_RET_IP(loc, ctx);
value = bpf_map_lookup_elem(&my_map, &loc);
if (value)
diff --git a/samples/bpf/tracex4_kern.c b/samples/bpf/tracex4_kern.c
index ac4671420cf1..6dd8e384de96 100644
--- a/samples/bpf/tracex4_kern.c
+++ b/samples/bpf/tracex4_kern.c
@@ -40,7 +40,7 @@ int bpf_prog2(struct pt_regs *ctx)
long ip = 0;
/* get ip address of kmem_cache_alloc_node() caller */
- bpf_probe_read(&ip, sizeof(ip), (void *)(PT_REGS_FP(ctx) + sizeof(ip)));
+ BPF_KRETPROBE_READ_RET_IP(ip, ctx);
struct pair v = {
.val = bpf_ktime_get_ns(),