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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Browse source 
Pull networking fixes from David Miller:

 1) Fix hotplug deadlock in hv_netvsc, from Stephen Hemminger.

 2) Fix double-free in rmnet driver, from Dan Carpenter.

 3) INET connection socket layer can double put request sockets, fix
    from Eric Dumazet.

 4) Don't match collect metadata-mode tunnels if the device is down,
    from Haishuang Yan.

 5) Do not perform TSO6/GSO on ipv6 packets with extensions headers in
    be2net driver, from Suresh Reddy.

 6) Fix scaling error in gen_estimator, from Eric Dumazet.

 7) Fix 64-bit statistics deadlock in systemport driver, from Florian
    Fainelli.

 8) Fix use-after-free in sctp_sock_dump, from Xin Long.

 9) Reject invalid BPF_END instructions in verifier, from Edward Cree.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (43 commits)
  mlxsw: spectrum_router: Only handle IPv4 and IPv6 events
  Documentation: link in networking docs
  tcp: fix data delivery rate
  bpf/verifier: reject BPF_ALU64|BPF_END
  sctp: do not mark sk dumped when inet_sctp_diag_fill returns err
  sctp: fix an use-after-free issue in sctp_sock_dump
  netvsc: increase default receive buffer size
  tcp: update skb->skb_mstamp more carefully
  net: ipv4: fix l3slave check for index returned in IP_PKTINFO
  net: smsc911x: Quieten netif during suspend
  net: systemport: Fix 64-bit stats deadlock
  net: vrf: avoid gcc-4.6 warning
  qed: remove unnecessary call to memset
  tg3: clean up redundant initialization of tnapi
  tls: make tls_sw_free_resources static
  sctp: potential read out of bounds in sctp_ulpevent_type_enabled()
  MAINTAINERS: review Renesas DT bindings as well
  net_sched: gen_estimator: fix scaling error in bytes/packets samples
  nfp: wait for the NSP resource to appear on boot
  nfp: wait for board state before talking to the NSP
  ...
This commit is contained in:
Linus Torvalds 2017-09-16 11:28:59 -07:00
commit 48bddb143b
48 changed files with 467 additions and 234 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
Documentation/networking/filter.txt
View file

@ -45,7 +45,7 @@ in many more places. There's xt_bpf for netfilter, cls_bpf in the kernel
qdisc layer, SECCOMP-BPF (SECure COMPuting [1]), and lots of other places
such as team driver, PTP code, etc where BPF is being used.
[1] Documentation/prctl/seccomp_filter.txt
[1] Documentation/userspace-api/seccomp_filter.rst
Original BPF paper:

2
MAINTAINERS
View file

@ -11435,6 +11435,8 @@ RENESAS ETHERNET DRIVERS
R: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
L: netdev@vger.kernel.org
L: linux-renesas-soc@vger.kernel.org
F: Documentation/devicetree/bindings/net/renesas,*.txt
F: Documentation/devicetree/bindings/net/sh_eth.txt
F: drivers/net/ethernet/renesas/
F: include/linux/sh_eth.h

17
drivers/net/bonding/bond_main.c
View file

@ -4289,7 +4289,7 @@ static int bond_check_params(struct bond_params *params)
int bond_mode = BOND_MODE_ROUNDROBIN;
int xmit_hashtype = BOND_XMIT_POLICY_LAYER2;
int lacp_fast = 0;
int tlb_dynamic_lb = 0;
int tlb_dynamic_lb;
/* Convert string parameters. */
if (mode) {
@ -4601,16 +4601,13 @@ static int bond_check_params(struct bond_params *params)
}
ad_user_port_key = valptr->value;
if ((bond_mode == BOND_MODE_TLB) || (bond_mode == BOND_MODE_ALB)) {
bond_opt_initstr(&newval, "default");
valptr = bond_opt_parse(bond_opt_get(BOND_OPT_TLB_DYNAMIC_LB),
&newval);
if (!valptr) {
pr_err("Error: No tlb_dynamic_lb default value");
return -EINVAL;
}
tlb_dynamic_lb = valptr->value;
bond_opt_initstr(&newval, "default");
valptr = bond_opt_parse(bond_opt_get(BOND_OPT_TLB_DYNAMIC_LB), &newval);
if (!valptr) {
pr_err("Error: No tlb_dynamic_lb default value");
return -EINVAL;
}
tlb_dynamic_lb = valptr->value;
if (lp_interval == 0) {
pr_warn("Warning: ip_interval must be between 1 and %d, so it was reset to %d\n",

3
drivers/net/bonding/bond_options.c
View file

@ -754,6 +754,9 @@ static int bond_option_mode_set(struct bonding *bond,
bond->params.miimon);
}
if (newval->value == BOND_MODE_ALB)
bond->params.tlb_dynamic_lb = 1;
/* don't cache arp_validate between modes */
bond->params.arp_validate = BOND_ARP_VALIDATE_NONE;
bond->params.mode = newval->value;

3
drivers/net/ethernet/broadcom/bcmsysport.c
View file

@ -1735,11 +1735,8 @@ static void bcm_sysport_get_stats64(struct net_device *dev,
stats->tx_packets += tx_packets;
}
/* lockless update tx_bytes and tx_packets */
u64_stats_update_begin(&priv->syncp);
stats64->tx_bytes = stats->tx_bytes;
stats64->tx_packets = stats->tx_packets;
u64_stats_update_end(&priv->syncp);
do {
start = u64_stats_fetch_begin_irq(&priv->syncp);

4
drivers/net/ethernet/broadcom/tg3.c
View file

@ -11536,11 +11536,11 @@ static int tg3_start(struct tg3 *tp, bool reset_phy, bool test_irq,
tg3_napi_enable(tp);
for (i = 0; i < tp->irq_cnt; i++) {
struct tg3_napi *tnapi = &tp->napi[i];
err = tg3_request_irq(tp, i);
if (err) {
for (i--; i >= 0; i--) {
tnapi = &tp->napi[i];
struct tg3_napi *tnapi = &tp->napi[i];
free_irq(tnapi->irq_vec, tnapi);
}
goto out_napi_fini;

8
drivers/net/ethernet/emulex/benet/be.h
View file

@ -930,6 +930,14 @@ static inline bool is_ipv4_pkt(struct sk_buff *skb)
return skb->protocol == htons(ETH_P_IP) && ip_hdr(skb)->version == 4;
}
static inline bool is_ipv6_ext_hdr(struct sk_buff *skb)
{
if (ip_hdr(skb)->version == 6)
return ipv6_ext_hdr(ipv6_hdr(skb)->nexthdr);
else
return false;
}
#define be_error_recovering(adapter) \
(adapter->flags & BE_FLAGS_TRY_RECOVERY)

14
drivers/net/ethernet/emulex/benet/be_main.c
View file

@ -5089,6 +5089,20 @@ static netdev_features_t be_features_check(struct sk_buff *skb,
struct be_adapter *adapter = netdev_priv(dev);
u8 l4_hdr = 0;
if (skb_is_gso(skb)) {
/* IPv6 TSO requests with extension hdrs are a problem
* to Lancer and BE3 HW. Disable TSO6 feature.
*/
if (!skyhawk_chip(adapter) && is_ipv6_ext_hdr(skb))
features &= ~NETIF_F_TSO6;
/* Lancer cannot handle the packet with MSS less than 256.
* Disable the GSO support in such cases
*/
if (lancer_chip(adapter) && skb_shinfo(skb)->gso_size < 256)
features &= ~NETIF_F_GSO_MASK;
}
/* The code below restricts offload features for some tunneled and
* Q-in-Q packets.
* Offload features for normal (non tunnel) packets are unchanged.

38
drivers/net/ethernet/mellanox/mlxsw/spectrum.c
View file

@ -575,15 +575,14 @@ static void mlxsw_sp_span_entry_destroy(struct mlxsw_sp *mlxsw_sp,
}
static struct mlxsw_sp_span_entry *
mlxsw_sp_span_entry_find(struct mlxsw_sp_port *port)
mlxsw_sp_span_entry_find(struct mlxsw_sp *mlxsw_sp, u8 local_port)
{
struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
int i;
for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i];
if (curr->used && curr->local_port == port->local_port)
if (curr->used && curr->local_port == local_port)
return curr;
}
return NULL;
@ -594,7 +593,8 @@ static struct mlxsw_sp_span_entry
{
struct mlxsw_sp_span_entry *span_entry;
span_entry = mlxsw_sp_span_entry_find(port);
span_entry = mlxsw_sp_span_entry_find(port->mlxsw_sp,
port->local_port);
if (span_entry) {
/* Already exists, just take a reference */
span_entry->ref_count++;
@ -783,12 +783,13 @@ static int mlxsw_sp_span_mirror_add(struct mlxsw_sp_port *from,
}
static void mlxsw_sp_span_mirror_remove(struct mlxsw_sp_port *from,
struct mlxsw_sp_port *to,
u8 destination_port,
enum mlxsw_sp_span_type type)
{
struct mlxsw_sp_span_entry *span_entry;
span_entry = mlxsw_sp_span_entry_find(to);
span_entry = mlxsw_sp_span_entry_find(from->mlxsw_sp,
destination_port);
if (!span_entry) {
netdev_err(from->dev, "no span entry found\n");
return;
@ -1563,14 +1564,12 @@ static void
mlxsw_sp_port_del_cls_matchall_mirror(struct mlxsw_sp_port *mlxsw_sp_port,
struct mlxsw_sp_port_mall_mirror_tc_entry *mirror)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
enum mlxsw_sp_span_type span_type;
struct mlxsw_sp_port *to_port;
to_port = mlxsw_sp->ports[mirror->to_local_port];
span_type = mirror->ingress ?
MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS;
mlxsw_sp_span_mirror_remove(mlxsw_sp_port, to_port, span_type);
mlxsw_sp_span_mirror_remove(mlxsw_sp_port, mirror->to_local_port,
span_type);
}
static int
@ -2545,7 +2544,9 @@ static int mlxsw_sp_flash_device(struct net_device *dev,
return err;
}
#define MLXSW_SP_QSFP_I2C_ADDR 0x50
#define MLXSW_SP_I2C_ADDR_LOW 0x50
#define MLXSW_SP_I2C_ADDR_HIGH 0x51
#define MLXSW_SP_EEPROM_PAGE_LENGTH 256
static int mlxsw_sp_query_module_eeprom(struct mlxsw_sp_port *mlxsw_sp_port,
u16 offset, u16 size, void *data,
@ -2554,12 +2555,25 @@ static int mlxsw_sp_query_module_eeprom(struct mlxsw_sp_port *mlxsw_sp_port,
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
char eeprom_tmp[MLXSW_SP_REG_MCIA_EEPROM_SIZE];
char mcia_pl[MLXSW_REG_MCIA_LEN];
u16 i2c_addr;
int status;
int err;
size = min_t(u16, size, MLXSW_SP_REG_MCIA_EEPROM_SIZE);
if (offset < MLXSW_SP_EEPROM_PAGE_LENGTH &&
offset + size > MLXSW_SP_EEPROM_PAGE_LENGTH)
/* Cross pages read, read until offset 256 in low page */
size = MLXSW_SP_EEPROM_PAGE_LENGTH - offset;
i2c_addr = MLXSW_SP_I2C_ADDR_LOW;
if (offset >= MLXSW_SP_EEPROM_PAGE_LENGTH) {
i2c_addr = MLXSW_SP_I2C_ADDR_HIGH;
offset -= MLXSW_SP_EEPROM_PAGE_LENGTH;
}
mlxsw_reg_mcia_pack(mcia_pl, mlxsw_sp_port->mapping.module,
0, 0, offset, size, MLXSW_SP_QSFP_I2C_ADDR);
0, 0, offset, size, i2c_addr);
err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcia), mcia_pl);
if (err)

3
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
View file

@ -4868,7 +4868,8 @@ static int mlxsw_sp_router_fib_event(struct notifier_block *nb,
struct fib_notifier_info *info = ptr;
struct mlxsw_sp_router *router;
if (!net_eq(info->net, &init_net))
if (!net_eq(info->net, &init_net) ||
(info->family != AF_INET && info->family != AF_INET6))
return NOTIFY_DONE;
fib_work = kzalloc(sizeof(*fib_work), GFP_ATOMIC);

13
drivers/net/ethernet/netronome/nfp/flower/offload.c
View file

@ -44,6 +44,16 @@
#include "../nfp_net.h"
#include "../nfp_port.h"
#define NFP_FLOWER_WHITELIST_DISSECTOR \
(BIT(FLOW_DISSECTOR_KEY_CONTROL) | \
BIT(FLOW_DISSECTOR_KEY_BASIC) | \
BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) | \
BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) | \
BIT(FLOW_DISSECTOR_KEY_PORTS) | \
BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) | \
BIT(FLOW_DISSECTOR_KEY_VLAN) | \
BIT(FLOW_DISSECTOR_KEY_IP))
static int
nfp_flower_xmit_flow(struct net_device *netdev,
struct nfp_fl_payload *nfp_flow, u8 mtype)
@ -112,6 +122,9 @@ nfp_flower_calculate_key_layers(struct nfp_fl_key_ls *ret_key_ls,
u8 key_layer;
int key_size;
if (flow->dissector->used_keys & ~NFP_FLOWER_WHITELIST_DISSECTOR)
return -EOPNOTSUPP;
if (dissector_uses_key(flow->dissector,
FLOW_DISSECTOR_KEY_ENC_CONTROL)) {
struct flow_dissector_key_control *mask_enc_ctl =

47
drivers/net/ethernet/netronome/nfp/nfp_main.c
View file

@ -74,6 +74,45 @@ static const struct pci_device_id nfp_pci_device_ids[] = {
};
MODULE_DEVICE_TABLE(pci, nfp_pci_device_ids);
static bool nfp_board_ready(struct nfp_pf *pf)
{
const char *cp;
long state;
int err;
cp = nfp_hwinfo_lookup(pf->hwinfo, "board.state");
if (!cp)
return false;
err = kstrtol(cp, 0, &state);
if (err < 0)
return false;
return state == 15;
}
static int nfp_pf_board_state_wait(struct nfp_pf *pf)
{
const unsigned long wait_until = jiffies + 10 * HZ;
while (!nfp_board_ready(pf)) {
if (time_is_before_eq_jiffies(wait_until)) {
nfp_err(pf->cpp, "NFP board initialization timeout\n");
return -EINVAL;
}
nfp_info(pf->cpp, "waiting for board initialization\n");
if (msleep_interruptible(500))
return -ERESTARTSYS;
/* Refresh cached information */
kfree(pf->hwinfo);
pf->hwinfo = nfp_hwinfo_read(pf->cpp);
}
return 0;
}
static int nfp_pcie_sriov_read_nfd_limit(struct nfp_pf *pf)
{
int err;
@ -312,6 +351,10 @@ static int nfp_nsp_init(struct pci_dev *pdev, struct nfp_pf *pf)
struct nfp_nsp *nsp;
int err;
err = nfp_resource_wait(pf->cpp, NFP_RESOURCE_NSP, 30);
if (err)
return err;
nsp = nfp_nsp_open(pf->cpp);
if (IS_ERR(nsp)) {
err = PTR_ERR(nsp);
@ -425,6 +468,10 @@ static int nfp_pci_probe(struct pci_dev *pdev,
nfp_hwinfo_lookup(pf->hwinfo, "assembly.revision"),
nfp_hwinfo_lookup(pf->hwinfo, "cpld.version"));
err = nfp_pf_board_state_wait(pf);
if (err)
goto err_hwinfo_free;
err = devlink_register(devlink, &pdev->dev);
if (err)
goto err_hwinfo_free;

23
drivers/net/ethernet/netronome/nfp/nfp_net_main.c
View file

@ -64,23 +64,6 @@
#define NFP_PF_CSR_SLICE_SIZE (32 * 1024)
static int nfp_is_ready(struct nfp_pf *pf)
{
const char *cp;
long state;
int err;
cp = nfp_hwinfo_lookup(pf->hwinfo, "board.state");
if (!cp)
return 0;
err = kstrtol(cp, 0, &state);
if (err < 0)
return 0;
return state == 15;
}
/**
* nfp_net_get_mac_addr() - Get the MAC address.
* @pf: NFP PF handle
@ -725,12 +708,6 @@ int nfp_net_pci_probe(struct nfp_pf *pf)
INIT_WORK(&pf->port_refresh_work, nfp_net_refresh_vnics);
/* Verify that the board has completed initialization */
if (!nfp_is_ready(pf)) {
nfp_err(pf->cpp, "NFP is not ready for NIC operation.\n");
return -EINVAL;
}
if (!pf->rtbl) {
nfp_err(pf->cpp, "No %s, giving up.\n",
pf->fw_loaded ? "symbol table" : "firmware found");

2
drivers/net/ethernet/netronome/nfp/nfpcore/nfp.h
View file

@ -97,6 +97,8 @@ nfp_resource_acquire(struct nfp_cpp *cpp, const char *name);
void nfp_resource_release(struct nfp_resource *res);
int nfp_resource_wait(struct nfp_cpp *cpp, const char *name, unsigned int secs);
u32 nfp_resource_cpp_id(struct nfp_resource *res);
const char *nfp_resource_name(struct nfp_resource *res);

45
drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c
View file

@ -249,6 +249,51 @@ void nfp_resource_release(struct nfp_resource *res)
kfree(res);
}
/**
* nfp_resource_wait() - Wait for resource to appear
* @cpp: NFP CPP handle
* @name: Name of the resource
* @secs: Number of seconds to wait
*
* Wait for resource to appear in the resource table, grab and release
* its lock. The wait is jiffies-based, don't expect fine granularity.
*
* Return: 0 on success, errno otherwise.
*/
int nfp_resource_wait(struct nfp_cpp *cpp, const char *name, unsigned int secs)
{
unsigned long warn_at = jiffies + NFP_MUTEX_WAIT_FIRST_WARN * HZ;
unsigned long err_at = jiffies + secs * HZ;
struct nfp_resource *res;
while (true) {
res = nfp_resource_acquire(cpp, name);
if (!IS_ERR(res)) {
nfp_resource_release(res);
return 0;
}
if (PTR_ERR(res) != -ENOENT) {
nfp_err(cpp, "error waiting for resource %s: %ld\n",
name, PTR_ERR(res));
return PTR_ERR(res);
}
if (time_is_before_eq_jiffies(err_at)) {
nfp_err(cpp, "timeout waiting for resource %s\n", name);
return -ETIMEDOUT;
}
if (time_is_before_eq_jiffies(warn_at)) {
warn_at = jiffies + NFP_MUTEX_WAIT_NEXT_WARN * HZ;
nfp_info(cpp, "waiting for NFP resource %s\n", name);
}
if (msleep_interruptible(10)) {
nfp_err(cpp, "wait for resource %s interrupted\n",
name);
return -ERESTARTSYS;
}
}
}
/**
* nfp_resource_cpp_id() - Return the cpp_id of a resource handle
* @res: NFP Resource handle

1
drivers/net/ethernet/nuvoton/w90p910_ether.c
View file

@ -11,6 +11,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/mii.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>

1
drivers/net/ethernet/qlogic/qed/qed_dcbx.c
View file

@ -1244,7 +1244,6 @@ int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
if (!dcbx_info)
return -ENOMEM;
memset(dcbx_info, 0, sizeof(*dcbx_info));
rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
if (rc) {
kfree(dcbx_info);

10
drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c
View file

@ -84,6 +84,10 @@ struct sk_buff *rmnet_map_deaggregate(struct sk_buff *skb)
if (((int)skb->len - (int)packet_len) < 0)
return NULL;
/* Some hardware can send us empty frames. Catch them */
if (ntohs(maph->pkt_len) == 0)
return NULL;
skbn = alloc_skb(packet_len + RMNET_MAP_DEAGGR_SPACING, GFP_ATOMIC);
if (!skbn)
return NULL;
@ -94,11 +98,5 @@ struct sk_buff *rmnet_map_deaggregate(struct sk_buff *skb)
memcpy(skbn->data, skb->data, packet_len);
skb_pull(skb, packet_len);
/* Some hardware can send us empty frames. Catch them */
if (ntohs(maph->pkt_len) == 0) {
kfree_skb(skb);
return NULL;
}
return skbn;
}

15
drivers/net/ethernet/smsc/smsc911x.c
View file

@ -2595,6 +2595,11 @@ static int smsc911x_suspend(struct device *dev)
struct net_device *ndev = dev_get_drvdata(dev);
struct smsc911x_data *pdata = netdev_priv(ndev);
if (netif_running(ndev)) {
netif_stop_queue(ndev);
netif_device_detach(ndev);
}
/* enable wake on LAN, energy detection and the external PME
* signal. */
smsc911x_reg_write(pdata, PMT_CTRL,
@ -2628,7 +2633,15 @@ static int smsc911x_resume(struct device *dev)
while (!(smsc911x_reg_read(pdata, PMT_CTRL) & PMT_CTRL_READY_) && --to)
udelay(1000);
return (to == 0) ? -EIO : 0;
if (to == 0)
return -EIO;
if (netif_running(ndev)) {
netif_device_attach(ndev);
netif_start_queue(ndev);
}
return 0;
}
static const struct dev_pm_ops smsc911x_pm_ops = {

3
drivers/net/hyperv/hyperv_net.h
View file

@ -204,6 +204,8 @@ int netvsc_recv_callback(struct net_device *net,
const struct ndis_pkt_8021q_info *vlan);
void netvsc_channel_cb(void *context);
int netvsc_poll(struct napi_struct *napi, int budget);
void rndis_set_subchannel(struct work_struct *w);
bool rndis_filter_opened(const struct netvsc_device *nvdev);
int rndis_filter_open(struct netvsc_device *nvdev);
int rndis_filter_close(struct netvsc_device *nvdev);
@ -782,6 +784,7 @@ struct netvsc_device {
u32 num_chn;
atomic_t open_chn;
struct work_struct subchan_work;
wait_queue_head_t subchan_open;
struct rndis_device *extension;

3
drivers/net/hyperv/netvsc.c
View file

@ -81,6 +81,7 @@ static struct netvsc_device *alloc_net_device(void)
init_completion(&net_device->channel_init_wait);
init_waitqueue_head(&net_device->subchan_open);
INIT_WORK(&net_device->subchan_work, rndis_set_subchannel);
return net_device;
}
@ -557,6 +558,8 @@ void netvsc_device_remove(struct hv_device *device)
= rtnl_dereference(net_device_ctx->nvdev);
int i;
cancel_work_sync(&net_device->subchan_work);
netvsc_disconnect_vsp(device);
RCU_INIT_POINTER(net_device_ctx->nvdev, NULL);

13
drivers/net/hyperv/netvsc_drv.c
View file

@ -49,7 +49,7 @@
#define NETVSC_MIN_TX_SECTIONS 10
#define NETVSC_DEFAULT_TX 192 /* ~1M */
#define NETVSC_MIN_RX_SECTIONS 10 /* ~64K */
#define NETVSC_DEFAULT_RX 2048 /* ~4M */
#define NETVSC_DEFAULT_RX 10485 /* Max ~16M */
#define LINKCHANGE_INT (2 * HZ)
#define VF_TAKEOVER_INT (HZ / 10)
@ -853,10 +853,7 @@ static int netvsc_set_channels(struct net_device *net,
rndis_filter_device_remove(dev, nvdev);
nvdev = rndis_filter_device_add(dev, &device_info);
if (!IS_ERR(nvdev)) {
netif_set_real_num_tx_queues(net, nvdev->num_chn);
netif_set_real_num_rx_queues(net, nvdev->num_chn);
} else {
if (IS_ERR(nvdev)) {
ret = PTR_ERR(nvdev);
device_info.num_chn = orig;
nvdev = rndis_filter_device_add(dev, &device_info);
@ -1954,9 +1951,6 @@ static int netvsc_probe(struct hv_device *dev,
NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
net->vlan_features = net->features;
netif_set_real_num_tx_queues(net, nvdev->num_chn);
netif_set_real_num_rx_queues(net, nvdev->num_chn);
netdev_lockdep_set_classes(net);
/* MTU range: 68 - 1500 or 65521 */
@ -2012,9 +2006,10 @@ static int netvsc_remove(struct hv_device *dev)
if (vf_netdev)
netvsc_unregister_vf(vf_netdev);
unregister_netdevice(net);
rndis_filter_device_remove(dev,
rtnl_dereference(ndev_ctx->nvdev));
unregister_netdevice(net);
rtnl_unlock();
hv_set_drvdata(dev, NULL);

126
drivers/net/hyperv/rndis_filter.c
View file

@ -1039,8 +1039,6 @@ static void netvsc_sc_open(struct vmbus_channel *new_sc)
/* Set the channel before opening.*/
nvchan->channel = new_sc;
netif_napi_add(ndev, &nvchan->napi,
netvsc_poll, NAPI_POLL_WEIGHT);
ret = vmbus_open(new_sc, nvscdev->ring_size * PAGE_SIZE,
nvscdev->ring_size * PAGE_SIZE, NULL, 0,
@ -1048,10 +1046,86 @@ static void netvsc_sc_open(struct vmbus_channel *new_sc)
if (ret == 0)
napi_enable(&nvchan->napi);
else
netif_napi_del(&nvchan->napi);
netdev_notice(ndev, "sub channel open failed: %d\n", ret);
atomic_inc(&nvscdev->open_chn);
wake_up(&nvscdev->subchan_open);
if (atomic_inc_return(&nvscdev->open_chn) == nvscdev->num_chn)
wake_up(&nvscdev->subchan_open);
}
/* Open sub-channels after completing the handling of the device probe.
* This breaks overlap of processing the host message for the
* new primary channel with the initialization of sub-channels.
*/
void rndis_set_subchannel(struct work_struct *w)
{
struct netvsc_device *nvdev
= container_of(w, struct netvsc_device, subchan_work);
struct nvsp_message *init_packet = &nvdev->channel_init_pkt;
struct net_device_context *ndev_ctx;
struct rndis_device *rdev;
struct net_device *ndev;
struct hv_device *hv_dev;
int i, ret;
if (!rtnl_trylock()) {
schedule_work(w);
return;
}
rdev = nvdev->extension;
if (!rdev)
goto unlock; /* device was removed */
ndev = rdev->ndev;
ndev_ctx = netdev_priv(ndev);
hv_dev = ndev_ctx->device_ctx;
memset(init_packet, 0, sizeof(struct nvsp_message));
init_packet->hdr.msg_type = NVSP_MSG5_TYPE_SUBCHANNEL;
init_packet->msg.v5_msg.subchn_req.op = NVSP_SUBCHANNEL_ALLOCATE;
init_packet->msg.v5_msg.subchn_req.num_subchannels =
nvdev->num_chn - 1;
ret = vmbus_sendpacket(hv_dev->channel, init_packet,
sizeof(struct nvsp_message),
(unsigned long)init_packet,
VM_PKT_DATA_INBAND,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
if (ret) {
netdev_err(ndev, "sub channel allocate send failed: %d\n", ret);
goto failed;
}
wait_for_completion(&nvdev->channel_init_wait);
if (init_packet->msg.v5_msg.subchn_comp.status != NVSP_STAT_SUCCESS) {
netdev_err(ndev, "sub channel request failed\n");
goto failed;
}
nvdev->num_chn = 1 +
init_packet->msg.v5_msg.subchn_comp.num_subchannels;
/* wait for all sub channels to open */
wait_event(nvdev->subchan_open,
atomic_read(&nvdev->open_chn) == nvdev->num_chn);
/* ignore failues from setting rss parameters, still have channels */
rndis_filter_set_rss_param(rdev, netvsc_hash_key);
netif_set_real_num_tx_queues(ndev, nvdev->num_chn);
netif_set_real_num_rx_queues(ndev, nvdev->num_chn);
rtnl_unlock();
return;
failed:
/* fallback to only primary channel */
for (i = 1; i < nvdev->num_chn; i++)
netif_napi_del(&nvdev->chan_table[i].napi);
nvdev->max_chn = 1;
nvdev->num_chn = 1;
unlock:
rtnl_unlock();
}
struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
@ -1063,7 +1137,6 @@ struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
struct rndis_device *rndis_device;
struct ndis_offload hwcaps;
struct ndis_offload_params offloads;
struct nvsp_message *init_packet;
struct ndis_recv_scale_cap rsscap;
u32 rsscap_size = sizeof(struct ndis_recv_scale_cap);
unsigned int gso_max_size = GSO_MAX_SIZE;
@ -1215,9 +1288,7 @@ struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
net_device->num_chn);
atomic_set(&net_device->open_chn, 1);
if (net_device->num_chn == 1)
return net_device;
vmbus_set_sc_create_callback(dev->channel, netvsc_sc_open);
for (i = 1; i < net_device->num_chn; i++) {
ret = netvsc_alloc_recv_comp_ring(net_device, i);
@ -1228,38 +1299,15 @@ struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
}
}
vmbus_set_sc_create_callback(dev->channel, netvsc_sc_open);
for (i = 1; i < net_device->num_chn; i++)
netif_napi_add(net, &net_device->chan_table[i].napi,
netvsc_poll, NAPI_POLL_WEIGHT);
init_packet = &net_device->channel_init_pkt;
memset(init_packet, 0, sizeof(struct nvsp_message));
init_packet->hdr.msg_type = NVSP_MSG5_TYPE_SUBCHANNEL;
init_packet->msg.v5_msg.subchn_req.op = NVSP_SUBCHANNEL_ALLOCATE;
init_packet->msg.v5_msg.subchn_req.num_subchannels =
net_device->num_chn - 1;
ret = vmbus_sendpacket(dev->channel, init_packet,
sizeof(struct nvsp_message),
(unsigned long)init_packet,
VM_PKT_DATA_INBAND,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
if (ret)
goto out;
if (net_device->num_chn > 1)
schedule_work(&net_device->subchan_work);
wait_for_completion(&net_device->channel_init_wait);
if (init_packet->msg.v5_msg.subchn_comp.status != NVSP_STAT_SUCCESS) {
ret = -ENODEV;
goto out;
}
net_device->num_chn = 1 +
init_packet->msg.v5_msg.subchn_comp.num_subchannels;
/* wait for all sub channels to open */
wait_event(net_device->subchan_open,
atomic_read(&net_device->open_chn) == net_device->num_chn);
/* ignore failues from setting rss parameters, still have channels */
rndis_filter_set_rss_param(rndis_device, netvsc_hash_key);
out:
/* if unavailable, just proceed with one queue */
if (ret) {
net_device->max_chn = 1;
net_device->num_chn = 1;
@ -1280,10 +1328,10 @@ void rndis_filter_device_remove(struct hv_device *dev,
/* Halt and release the rndis device */
rndis_filter_halt_device(rndis_dev);
kfree(rndis_dev);
net_dev->extension = NULL;
netvsc_device_remove(dev);
kfree(rndis_dev);
}
int rndis_filter_open(struct netvsc_device *nvdev)

11
drivers/net/usb/smsc95xx.c
View file

@ -526,7 +526,7 @@ static void smsc95xx_set_multicast(struct net_device *netdev)
static int smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex,
u16 lcladv, u16 rmtadv)
{
u32 flow, afc_cfg = 0;
u32 flow = 0, afc_cfg;
int ret = smsc95xx_read_reg(dev, AFC_CFG, &afc_cfg);
if (ret < 0)
@ -537,20 +537,19 @@ static int smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex,
if (cap & FLOW_CTRL_RX)
flow = 0xFFFF0002;
else
flow = 0;
if (cap & FLOW_CTRL_TX)
if (cap & FLOW_CTRL_TX) {
afc_cfg |= 0xF;
else
flow |= 0xFFFF0000;
} else {
afc_cfg &= ~0xF;
}
netif_dbg(dev, link, dev->net, "rx pause %s, tx pause %s\n",
cap & FLOW_CTRL_RX ? "enabled" : "disabled",
cap & FLOW_CTRL_TX ? "enabled" : "disabled");
} else {
netif_dbg(dev, link, dev->net, "half duplex\n");
flow = 0;
afc_cfg |= 0xF;
}

6
drivers/net/vrf.c
View file

@ -957,12 +957,12 @@ static void vrf_ip6_input_dst(struct sk_buff *skb, struct net_device *vrf_dev,
{
const struct ipv6hdr *iph = ipv6_hdr(skb);
struct flowi6 fl6 = {
.flowi6_iif = ifindex,
.flowi6_mark = skb->mark,
.flowi6_proto = iph->nexthdr,
.daddr = iph->daddr,
.saddr = iph->saddr,
.flowlabel = ip6_flowinfo(iph),
.flowi6_mark = skb->mark,
.flowi6_proto = iph->nexthdr,
.flowi6_iif = ifindex,
};
struct net *net = dev_net(vrf_dev);
struct rt6_info *rt6;

2
include/linux/syscalls.h
View file

@ -200,6 +200,8 @@ static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
#define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
#define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
#define SYSCALL_DEFINE_MAXARGS 6
#define SYSCALL_DEFINEx(x, sname, ...) \
SYSCALL_METADATA(sname, x, __VA_ARGS__) \
__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)

2
include/net/act_api.h
View file

@ -34,7 +34,6 @@ struct tc_action {
struct gnet_stats_queue tcfa_qstats;
struct net_rate_estimator __rcu *tcfa_rate_est;
spinlock_t tcfa_lock;
struct rcu_head tcfa_rcu;
struct gnet_stats_basic_cpu __percpu *cpu_bstats;
struct gnet_stats_queue __percpu *cpu_qstats;
struct tc_cookie *act_cookie;
@ -50,7 +49,6 @@ struct tc_action {
#define tcf_qstats common.tcfa_qstats
#define tcf_rate_est common.tcfa_rate_est
#define tcf_lock common.tcfa_lock
#define tcf_rcu common.tcfa_rcu
/* Update lastuse only if needed, to avoid dirtying a cache line.
* We use a temp variable to avoid fetching jiffies twice.

3
include/net/sctp/sctp.h
View file

@ -127,7 +127,8 @@ int sctp_transport_lookup_process(int (*cb)(struct sctp_transport *, void *),
const union sctp_addr *laddr,
const union sctp_addr *paddr, void *p);
int sctp_for_each_transport(int (*cb)(struct sctp_transport *, void *),
struct net *net, int pos, void *p);
int (*cb_done)(struct sctp_transport *, void *),
struct net *net, int *pos, void *p);
int sctp_for_each_endpoint(int (*cb)(struct sctp_endpoint *, void *), void *p);
int sctp_get_sctp_info(struct sock *sk, struct sctp_association *asoc,
struct sctp_info *info);

6
include/net/sctp/ulpevent.h
View file

@ -153,8 +153,12 @@ __u16 sctp_ulpevent_get_notification_type(const struct sctp_ulpevent *event);
static inline int sctp_ulpevent_type_enabled(__u16 sn_type,
struct sctp_event_subscribe *mask)
{
int offset = sn_type - SCTP_SN_TYPE_BASE;
char *amask = (char *) mask;
return amask[sn_type - SCTP_SN_TYPE_BASE];
if (offset >= sizeof(struct sctp_event_subscribe))
return 0;
return amask[offset];
}
/* Given an event subscription, is this event enabled? */

4
include/trace/events/xdp.h
View file

@ -138,11 +138,11 @@ DEFINE_EVENT_PRINT(xdp_redirect_template, xdp_redirect_map_err,
#define _trace_xdp_redirect_map(dev, xdp, fwd, map, idx) \
trace_xdp_redirect_map(dev, xdp, fwd ? fwd->ifindex : 0, \
0, map, idx);
0, map, idx)
#define _trace_xdp_redirect_map_err(dev, xdp, fwd, map, idx, err) \
trace_xdp_redirect_map_err(dev, xdp, fwd ? fwd->ifindex : 0, \
err, map, idx);
err, map, idx)
#endif /* _TRACE_XDP_H */

3
kernel/bpf/verifier.c
View file

@ -2292,7 +2292,8 @@ static int check_alu_op(struct bpf_verifier_env *env, struct bpf_insn *insn)
}
} else {
if (insn->src_reg != BPF_REG_0 || insn->off != 0 ||
(insn->imm != 16 && insn->imm != 32 && insn->imm != 64)) {
(insn->imm != 16 && insn->imm != 32 && insn->imm != 64) ||
BPF_CLASS(insn->code) == BPF_ALU64) {
verbose("BPF_END uses reserved fields\n");
return -EINVAL;
}

2
kernel/trace/trace_syscalls.c
View file

@ -565,7 +565,7 @@ static int perf_call_bpf_enter(struct bpf_prog *prog, struct pt_regs *regs,
struct syscall_tp_t {
unsigned long long regs;
unsigned long syscall_nr;
unsigned long args[sys_data->nb_args];
unsigned long args[SYSCALL_DEFINE_MAXARGS];
} param;
int i;

38
net/core/filter.c
View file

@ -2506,21 +2506,19 @@ static int xdp_do_redirect_map(struct net_device *dev, struct xdp_buff *xdp,
struct redirect_info *ri = this_cpu_ptr(&redirect_info);
const struct bpf_prog *map_owner = ri->map_owner;
struct bpf_map *map = ri->map;
struct net_device *fwd = NULL;
u32 index = ri->ifindex;
struct net_device *fwd;
int err;
ri->ifindex = 0;
ri->map = NULL;
ri->map_owner = NULL;
/* This is really only caused by a deliberately crappy
* BPF program, normally we would never hit that case,
* so no need to inform someone via tracepoints either,
* just bail out.
*/
if (unlikely(map_owner != xdp_prog))
return -EINVAL;
if (unlikely(map_owner != xdp_prog)) {
err = -EFAULT;
map = NULL;
goto err;
}
fwd = __dev_map_lookup_elem(map, index);
if (!fwd) {
@ -2576,13 +2574,27 @@ int xdp_do_generic_redirect(struct net_device *dev, struct sk_buff *skb,
struct bpf_prog *xdp_prog)
{
struct redirect_info *ri = this_cpu_ptr(&redirect_info);
const struct bpf_prog *map_owner = ri->map_owner;
struct bpf_map *map = ri->map;
struct net_device *fwd = NULL;
u32 index = ri->ifindex;
struct net_device *fwd;
unsigned int len;
int err = 0;
fwd = dev_get_by_index_rcu(dev_net(dev), index);
ri->ifindex = 0;
ri->map = NULL;
ri->map_owner = NULL;
if (map) {
if (unlikely(map_owner != xdp_prog)) {
err = -EFAULT;
map = NULL;
goto err;
}
fwd = __dev_map_lookup_elem(map, index);
} else {
fwd = dev_get_by_index_rcu(dev_net(dev), index);
}
if (unlikely(!fwd)) {
err = -EINVAL;
goto err;
@ -2600,10 +2612,12 @@ int xdp_do_generic_redirect(struct net_device *dev, struct sk_buff *skb,
}
skb->dev = fwd;
_trace_xdp_redirect(dev, xdp_prog, index);
map ? _trace_xdp_redirect_map(dev, xdp_prog, fwd, map, index)
: _trace_xdp_redirect(dev, xdp_prog, index);
return 0;
err:
_trace_xdp_redirect_err(dev, xdp_prog, index, err);
map ? _trace_xdp_redirect_map_err(dev, xdp_prog, fwd, map, index, err)
: _trace_xdp_redirect_err(dev, xdp_prog, index, err);
return err;
}
EXPORT_SYMBOL_GPL(xdp_do_generic_redirect);

4
net/core/gen_estimator.c
View file

@ -83,10 +83,10 @@ static void est_timer(unsigned long arg)
u64 rate, brate;
est_fetch_counters(est, &b);
brate = (b.bytes - est->last_bytes) << (8 - est->ewma_log);
brate = (b.bytes - est->last_bytes) << (10 - est->ewma_log - est->intvl_log);
brate -= (est->avbps >> est->ewma_log);
rate = (u64)(b.packets - est->last_packets) << (8 - est->ewma_log);
rate = (u64)(b.packets - est->last_packets) << (10 - est->ewma_log - est->intvl_log);
rate -= (est->avpps >> est->ewma_log);
write_seqcount_begin(&est->seq);

2
net/ipv4/inet_connection_sock.c
View file

@ -916,7 +916,6 @@ static void inet_child_forget(struct sock *sk, struct request_sock *req,
tcp_sk(child)->fastopen_rsk = NULL;
}
inet_csk_destroy_sock(child);
reqsk_put(req);
}
struct sock *inet_csk_reqsk_queue_add(struct sock *sk,
@ -987,6 +986,7 @@ void inet_csk_listen_stop(struct sock *sk)
sock_hold(child);
inet_child_forget(sk, req, child);
reqsk_put(req);
bh_unlock_sock(child);
local_bh_enable();
sock_put(child);

8
net/ipv4/ip_sockglue.c
View file

@ -1207,7 +1207,6 @@ static int do_ip_setsockopt(struct sock *sk, int level,
void ipv4_pktinfo_prepare(const struct sock *sk, struct sk_buff *skb)
{
struct in_pktinfo *pktinfo = PKTINFO_SKB_CB(skb);
bool l3slave = ipv4_l3mdev_skb(IPCB(skb)->flags);
bool prepare = (inet_sk(sk)->cmsg_flags & IP_CMSG_PKTINFO) ||
ipv6_sk_rxinfo(sk);
@ -1221,8 +1220,13 @@ void ipv4_pktinfo_prepare(const struct sock *sk, struct sk_buff *skb)
* (e.g., process binds socket to eth0 for Tx which is
* redirected to loopback in the rtable/dst).
*/
if (pktinfo->ipi_ifindex == LOOPBACK_IFINDEX || l3slave)
struct rtable *rt = skb_rtable(skb);
bool l3slave = ipv4_l3mdev_skb(IPCB(skb)->flags);
if (pktinfo->ipi_ifindex == LOOPBACK_IFINDEX)
pktinfo->ipi_ifindex = inet_iif(skb);
else if (l3slave && rt && rt->rt_iif)
pktinfo->ipi_ifindex = rt->rt_iif;
pktinfo->ipi_spec_dst.s_addr = fib_compute_spec_dst(skb);
} else {

2
net/ipv4/ip_tunnel.c
View file

@ -176,7 +176,7 @@ struct ip_tunnel *ip_tunnel_lookup(struct ip_tunnel_net *itn,
return cand;
t = rcu_dereference(itn->collect_md_tun);
if (t)
if (t && t->dev->flags & IFF_UP)
return t;
if (itn->fb_tunnel_dev && itn->fb_tunnel_dev->flags & IFF_UP)

24
net/ipv4/tcp_output.c
View file

@ -991,6 +991,7 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
struct tcp_skb_cb *tcb;
struct tcp_out_options opts;
unsigned int tcp_options_size, tcp_header_size;
struct sk_buff *oskb = NULL;
struct tcp_md5sig_key *md5;
struct tcphdr *th;
int err;
@ -998,12 +999,10 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
BUG_ON(!skb || !tcp_skb_pcount(skb));
tp = tcp_sk(sk);
skb->skb_mstamp = tp->tcp_mstamp;
if (clone_it) {
TCP_SKB_CB(skb)->tx.in_flight = TCP_SKB_CB(skb)->end_seq
- tp->snd_una;
tcp_rate_skb_sent(sk, skb);
oskb = skb;
if (unlikely(skb_cloned(skb)))
skb = pskb_copy(skb, gfp_mask);
else
@ -1011,6 +1010,7 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
if (unlikely(!skb))
return -ENOBUFS;
}
skb->skb_mstamp = tp->tcp_mstamp;
inet = inet_sk(sk);
tcb = TCP_SKB_CB(skb);
@ -1122,12 +1122,15 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
err = icsk->icsk_af_ops->queue_xmit(sk, skb, &inet->cork.fl);
if (likely(err <= 0))
return err;
tcp_enter_cwr(sk);
return net_xmit_eval(err);
if (unlikely(err > 0)) {
tcp_enter_cwr(sk);
err = net_xmit_eval(err);
}
if (!err && oskb) {
oskb->skb_mstamp = tp->tcp_mstamp;
tcp_rate_skb_sent(sk, oskb);
}
return err;
}
/* This routine just queues the buffer for sending.
@ -2869,10 +2872,11 @@ int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb, int segs)
skb_headroom(skb) >= 0xFFFF)) {
struct sk_buff *nskb;
skb->skb_mstamp = tp->tcp_mstamp;
nskb = __pskb_copy(skb, MAX_TCP_HEADER, GFP_ATOMIC);
err = nskb ? tcp_transmit_skb(sk, nskb, 0, GFP_ATOMIC) :
-ENOBUFS;
if (!err)
skb->skb_mstamp = tp->tcp_mstamp;
} else {
err = tcp_transmit_skb(sk, skb, 1, GFP_ATOMIC);
}

2
net/ipv6/ip6_tunnel.c
View file

@ -171,7 +171,7 @@ ip6_tnl_lookup(struct net *net, const struct in6_addr *remote, const struct in6_
}
t = rcu_dereference(ip6n->collect_md_tun);
if (t)
if (t && t->dev->flags & IFF_UP)
return t;
t = rcu_dereference(ip6n->tnls_wc[0]);

4
net/ipv6/seg6_local.c
View file

@ -72,10 +72,6 @@ static struct ipv6_sr_hdr *get_srh(struct sk_buff *skb)
srh = (struct ipv6_sr_hdr *)(skb->data + srhoff);
/* make sure it's a Segment Routing header (Routing Type 4) */
if (srh->type != IPV6_SRCRT_TYPE_4)
return NULL;
len = (srh->hdrlen + 1) << 3;
if (!pskb_may_pull(skb, srhoff + len))

3
net/openvswitch/datapath.c
View file

@ -1112,7 +1112,8 @@ static int ovs_nla_init_match_and_action(struct net *net,
if (!a[OVS_FLOW_ATTR_KEY]) {
OVS_NLERR(log,
"Flow key attribute not present in set flow.");
return -EINVAL;
error = -EINVAL;
goto error;
}
*acts = get_flow_actions(net, a[OVS_FLOW_ATTR_ACTIONS], key,

23
net/sched/act_api.c
View file

@ -53,10 +53,13 @@ static void tcf_action_goto_chain_exec(const struct tc_action *a,
res->goto_tp = rcu_dereference_bh(chain->filter_chain);
}
static void free_tcf(struct rcu_head *head)
/* XXX: For standalone actions, we don't need a RCU grace period either, because
* actions are always connected to filters and filters are already destroyed in
* RCU callbacks, so after a RCU grace period actions are already disconnected
* from filters. Readers later can not find us.
*/
static void free_tcf(struct tc_action *p)
{
struct tc_action *p = container_of(head, struct tc_action, tcfa_rcu);
free_percpu(p->cpu_bstats);
free_percpu(p->cpu_qstats);
@ -76,11 +79,7 @@ static void tcf_idr_remove(struct tcf_idrinfo *idrinfo, struct tc_action *p)
idr_remove_ext(&idrinfo->action_idr, p->tcfa_index);
spin_unlock_bh(&idrinfo->lock);
gen_kill_estimator(&p->tcfa_rate_est);
/*
* gen_estimator est_timer() might access p->tcfa_lock
* or bstats, wait a RCU grace period before freeing p
*/
call_rcu(&p->tcfa_rcu, free_tcf);
free_tcf(p);
}
int __tcf_idr_release(struct tc_action *p, bool bind, bool strict)
@ -181,7 +180,7 @@ static int tcf_del_walker(struct tcf_idrinfo *idrinfo, struct sk_buff *skb,
idr_for_each_entry_ext(idr, p, id) {
ret = __tcf_idr_release(p, false, true);
if (ret == ACT_P_DELETED) {
module_put(p->ops->owner);
module_put(ops->owner);
n_i++;
} else if (ret < 0) {
goto nla_put_failure;
@ -259,7 +258,7 @@ void tcf_idr_cleanup(struct tc_action *a, struct nlattr *est)
{
if (est)
gen_kill_estimator(&a->tcfa_rate_est);
call_rcu(&a->tcfa_rcu, free_tcf);
free_tcf(a);
}
EXPORT_SYMBOL(tcf_idr_cleanup);
@ -515,13 +514,15 @@ EXPORT_SYMBOL(tcf_action_exec);
int tcf_action_destroy(struct list_head *actions, int bind)
{
const struct tc_action_ops *ops;
struct tc_action *a, *tmp;
int ret = 0;
list_for_each_entry_safe(a, tmp, actions, list) {
ops = a->ops;
ret = __tcf_idr_release(a, bind, true);
if (ret == ACT_P_DELETED)
module_put(a->ops->owner);
module_put(ops->owner);
else if (ret < 0)
return ret;
}

63
net/sched/cls_api.c
View file

@ -182,7 +182,7 @@ static struct tcf_chain *tcf_chain_create(struct tcf_block *block,
list_add_tail(&chain->list, &block->chain_list);
chain->block = block;
chain->index = chain_index;
chain->refcnt = 0;
chain->refcnt = 1;
return chain;
}
@ -194,21 +194,20 @@ static void tcf_chain_flush(struct tcf_chain *chain)
RCU_INIT_POINTER(*chain->p_filter_chain, NULL);
while ((tp = rtnl_dereference(chain->filter_chain)) != NULL) {
RCU_INIT_POINTER(chain->filter_chain, tp->next);
tcf_chain_put(chain);
tcf_proto_destroy(tp);
}
}
static void tcf_chain_destroy(struct tcf_chain *chain)
{
/* May be already removed from the list by the previous call. */
if (!list_empty(&chain->list))
list_del_init(&chain->list);
list_del(&chain->list);
kfree(chain);
}
/* There might still be a reference held when we got here from
* tcf_block_put. Wait for the user to drop reference before free.
*/
if (!chain->refcnt)
kfree(chain);
static void tcf_chain_hold(struct tcf_chain *chain)
{
++chain->refcnt;
}
struct tcf_chain *tcf_chain_get(struct tcf_block *block, u32 chain_index,
@ -217,24 +216,19 @@ struct tcf_chain *tcf_chain_get(struct tcf_block *block, u32 chain_index,
struct tcf_chain *chain;
list_for_each_entry(chain, &block->chain_list, list) {
if (chain->index == chain_index)
goto incref;
if (chain->index == chain_index) {
tcf_chain_hold(chain);
return chain;
}
}
chain = create ? tcf_chain_create(block, chain_index) : NULL;
incref:
if (chain)
chain->refcnt++;
return chain;
return create ? tcf_chain_create(block, chain_index) : NULL;
}
EXPORT_SYMBOL(tcf_chain_get);
void tcf_chain_put(struct tcf_chain *chain)
{
/* Destroy unused chain, with exception of chain 0, which is the
* default one and has to be always present.
*/
if (--chain->refcnt == 0 && !chain->filter_chain && chain->index != 0)
if (--chain->refcnt == 0)
tcf_chain_destroy(chain);
}
EXPORT_SYMBOL(tcf_chain_put);
@ -279,10 +273,31 @@ void tcf_block_put(struct tcf_block *block)
if (!block)
return;
list_for_each_entry_safe(chain, tmp, &block->chain_list, list) {
/* XXX: Standalone actions are not allowed to jump to any chain, and
* bound actions should be all removed after flushing. However,
* filters are destroyed in RCU callbacks, we have to hold the chains
* first, otherwise we would always race with RCU callbacks on this list
* without proper locking.
*/
/* Wait for existing RCU callbacks to cool down. */
rcu_barrier();
/* Hold a refcnt for all chains, except 0, in case they are gone. */
list_for_each_entry(chain, &block->chain_list, list)
if (chain->index)
tcf_chain_hold(chain);
/* No race on the list, because no chain could be destroyed. */
list_for_each_entry(chain, &block->chain_list, list)
tcf_chain_flush(chain);
tcf_chain_destroy(chain);
}
/* Wait for RCU callbacks to release the reference count. */
rcu_barrier();
/* At this point, all the chains should have refcnt == 1. */
list_for_each_entry_safe(chain, tmp, &block->chain_list, list)
tcf_chain_put(chain);
kfree(block);
}
EXPORT_SYMBOL(tcf_block_put);
@ -360,6 +375,7 @@ static void tcf_chain_tp_insert(struct tcf_chain *chain,
rcu_assign_pointer(*chain->p_filter_chain, tp);
RCU_INIT_POINTER(tp->next, tcf_chain_tp_prev(chain_info));
rcu_assign_pointer(*chain_info->pprev, tp);
tcf_chain_hold(chain);
}
static void tcf_chain_tp_remove(struct tcf_chain *chain,
@ -371,6 +387,7 @@ static void tcf_chain_tp_remove(struct tcf_chain *chain,
if (chain->p_filter_chain && tp == chain->filter_chain)
RCU_INIT_POINTER(*chain->p_filter_chain, next);
RCU_INIT_POINTER(*chain_info->pprev, next);
tcf_chain_put(chain);
}
static struct tcf_proto *tcf_chain_tp_find(struct tcf_chain *chain,

2
net/sched/cls_rsvp.h
View file

@ -389,7 +389,7 @@ static unsigned int gen_handle(struct tcf_proto *tp, unsigned salt)
if ((data->hgenerator += 0x10000) == 0)
data->hgenerator = 0x10000;
h = data->hgenerator|salt;
if (rsvp_get(tp, h) == 0)
if (!rsvp_get(tp, h))
return h;
}
return 0;

33
net/sctp/sctp_diag.c
View file

@ -279,9 +279,11 @@ static int sctp_tsp_dump_one(struct sctp_transport *tsp, void *p)
return err;
}
static int sctp_sock_dump(struct sock *sk, void *p)
static int sctp_sock_dump(struct sctp_transport *tsp, void *p)
{
struct sctp_endpoint *ep = tsp->asoc->ep;
struct sctp_comm_param *commp = p;
struct sock *sk = ep->base.sk;
struct sk_buff *skb = commp->skb;
struct netlink_callback *cb = commp->cb;
const struct inet_diag_req_v2 *r = commp->r;
@ -289,9 +291,7 @@ static int sctp_sock_dump(struct sock *sk, void *p)
int err = 0;
lock_sock(sk);
if (!sctp_sk(sk)->ep)
goto release;
list_for_each_entry(assoc, &sctp_sk(sk)->ep->asocs, asocs) {
list_for_each_entry(assoc, &ep->asocs, asocs) {
if (cb->args[4] < cb->args[1])
goto next;
@ -309,7 +309,6 @@ static int sctp_sock_dump(struct sock *sk, void *p)
cb->nlh->nlmsg_seq,
NLM_F_MULTI, cb->nlh,
commp->net_admin) < 0) {
cb->args[3] = 1;
err = 1;
goto release;
}
@ -327,40 +326,30 @@ static int sctp_sock_dump(struct sock *sk, void *p)
cb->args[4]++;
}
cb->args[1] = 0;
cb->args[2]++;
cb->args[3] = 0;
cb->args[4] = 0;
release:
release_sock(sk);
sock_put(sk);
return err;
}
static int sctp_get_sock(struct sctp_transport *tsp, void *p)
static int sctp_sock_filter(struct sctp_transport *tsp, void *p)
{
struct sctp_endpoint *ep = tsp->asoc->ep;
struct sctp_comm_param *commp = p;
struct sock *sk = ep->base.sk;
struct netlink_callback *cb = commp->cb;
const struct inet_diag_req_v2 *r = commp->r;
struct sctp_association *assoc =
list_entry(ep->asocs.next, struct sctp_association, asocs);
/* find the ep only once through the transports by this condition */
if (tsp->asoc != assoc)
goto out;
return 0;
if (r->sdiag_family != AF_UNSPEC && sk->sk_family != r->sdiag_family)
goto out;
sock_hold(sk);
cb->args[5] = (long)sk;
return 0;
return 1;
out:
cb->args[2]++;
return 0;
}
static int sctp_ep_dump(struct sctp_endpoint *ep, void *p)
@ -503,12 +492,8 @@ static void sctp_diag_dump(struct sk_buff *skb, struct netlink_callback *cb,
if (!(idiag_states & ~(TCPF_LISTEN | TCPF_CLOSE)))
goto done;
next:
cb->args[5] = 0;
sctp_for_each_transport(sctp_get_sock, net, cb->args[2], &commp);
if (cb->args[5] && !sctp_sock_dump((struct sock *)cb->args[5], &commp))
goto next;
sctp_for_each_transport(sctp_sock_filter, sctp_sock_dump,
net, (int *)&cb->args[2], &commp);
done:
cb->args[1] = cb->args[4];

40
net/sctp/socket.c
View file

@ -4658,29 +4658,39 @@ int sctp_transport_lookup_process(int (*cb)(struct sctp_transport *, void *),
EXPORT_SYMBOL_GPL(sctp_transport_lookup_process);
int sctp_for_each_transport(int (*cb)(struct sctp_transport *, void *),
struct net *net, int pos, void *p) {
int (*cb_done)(struct sctp_transport *, void *),
struct net *net, int *pos, void *p) {
struct rhashtable_iter hti;
void *obj;
int err;
struct sctp_transport *tsp;
int ret;
err = sctp_transport_walk_start(&hti);
if (err)
return err;
again:
ret = sctp_transport_walk_start(&hti);
if (ret)
return ret;
obj = sctp_transport_get_idx(net, &hti, pos + 1);
for (; !IS_ERR_OR_NULL(obj); obj = sctp_transport_get_next(net, &hti)) {
struct sctp_transport *transport = obj;
if (!sctp_transport_hold(transport))
tsp = sctp_transport_get_idx(net, &hti, *pos + 1);
for (; !IS_ERR_OR_NULL(tsp); tsp = sctp_transport_get_next(net, &hti)) {
if (!sctp_transport_hold(tsp))
continue;
err = cb(transport, p);
sctp_transport_put(transport);
if (err)
ret = cb(tsp, p);
if (ret)
break;
(*pos)++;
sctp_transport_put(tsp);
}
sctp_transport_walk_stop(&hti);
return err;
if (ret) {
if (cb_done && !cb_done(tsp, p)) {
(*pos)++;
sctp_transport_put(tsp);
goto again;
}
sctp_transport_put(tsp);
}
return ret;
}
EXPORT_SYMBOL_GPL(sctp_for_each_transport);

2
net/tls/tls_sw.c
View file

@ -639,7 +639,7 @@ int tls_sw_sendpage(struct sock *sk, struct page *page,
return ret;
}
void tls_sw_free_resources(struct sock *sk)
static void tls_sw_free_resources(struct sock *sk)
{
struct tls_context *tls_ctx = tls_get_ctx(sk);
struct tls_sw_context *ctx = tls_sw_ctx(tls_ctx);

16
tools/testing/selftests/bpf/test_verifier.c
View file

@ -6629,6 +6629,22 @@ static struct bpf_test tests[] = {
.result = REJECT,
.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
},
{
"invalid 64-bit BPF_END",
.insns = {
BPF_MOV32_IMM(BPF_REG_0, 0),
{
.code = BPF_ALU64 | BPF_END | BPF_TO_LE,
.dst_reg = BPF_REG_0,
.src_reg = 0,
.off = 0,
.imm = 32,
},
BPF_EXIT_INSN(),
},
.errstr = "BPF_END uses reserved fields",
.result = REJECT,
},
};
static int probe_filter_length(const struct bpf_insn *fp)