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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) We have to be careful to not try and place a checksum after the end
    of a rawv6 packet, fix from Dave Jones with help from Hannes
    Frederic Sowa.

 2) Missing memory barriers in tcp_tasklet_func() lead to crashes, from
    Eric Dumazet.

 3) Several bug fixes for the new XDP support in virtio_net, from Jason
    Wang.

 4) Increase headroom in RX skbs in be2net driver to accomodate
    encapsulations such as geneve. From Kalesh A P.

 5) Fix SKB frag unmapping on TX in mvpp2, from Thomas Petazzoni.

 6) Pre-pulling UDP headers created a regression in RECVORIGDSTADDR
    socket option support, from Willem de Bruijn.

 7) UID based routing added a potential OOPS in ip_do_redirect() when we
    see an SKB without a socket attached. We just need it for the
    network namespace which we can get from skb->dev instead. Fix from
    Lorenzo Colitti.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (30 commits)
  sctp: fix recovering from 0 win with small data chunks
  sctp: do not loose window information if in rwnd_over
  virtio-net: XDP support for small buffers
  virtio-net: remove big packet XDP codes
  virtio-net: forbid XDP when VIRTIO_NET_F_GUEST_UFO is support
  virtio-net: make rx buf size estimation works for XDP
  virtio-net: unbreak csumed packets for XDP_PASS
  virtio-net: correctly handle XDP_PASS for linearized packets
  virtio-net: fix page miscount during XDP linearizing
  virtio-net: correctly xmit linearized page on XDP_TX
  virtio-net: remove the warning before XDP linearizing
  mlxsw: spectrum_router: Correctly remove nexthop groups
  mlxsw: spectrum_router: Don't reflect dead neighs
  neigh: Send netevent after marking neigh as dead
  ipv6: handle -EFAULT from skb_copy_bits
  inet: fix IP(V6)_RECVORIGDSTADDR for udp sockets
  net/sched: cls_flower: Mandate mask when matching on flags
  net/sched: act_tunnel_key: Fix setting UDP dst port in metadata under IPv6
  stmmac: CSR clock configuration fix
  net: ipv4: Don't crash if passing a null sk to ip_do_redirect.
  ...
This commit is contained in:
Linus Torvalds 2016-12-23 11:23:25 -08:00
commit 50b17cfb19
25 changed files with 198 additions and 147 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/emulex/benet/be.h
View File

@ -65,7 +65,7 @@
/* Number of bytes of an RX frame that are copied to skb->data */
#define BE_HDR_LEN ((u16) 64)
/* allocate extra space to allow tunneling decapsulation without head reallocation */
#define BE_RX_SKB_ALLOC_SIZE (BE_HDR_LEN + 64)
#define BE_RX_SKB_ALLOC_SIZE 256
#define BE_MAX_JUMBO_FRAME_SIZE 9018
#define BE_MIN_MTU 256

59
drivers/net/ethernet/marvell/mvpp2.c
View File

@ -770,6 +770,17 @@ struct mvpp2_rx_desc {
u32 reserved8;
};
struct mvpp2_txq_pcpu_buf {
/* Transmitted SKB */
struct sk_buff *skb;
/* Physical address of transmitted buffer */
dma_addr_t phys;
/* Size transmitted */
size_t size;
};
/* Per-CPU Tx queue control */
struct mvpp2_txq_pcpu {
int cpu;
@ -785,11 +796,8 @@ struct mvpp2_txq_pcpu {
/* Number of Tx DMA descriptors reserved for each CPU */
int reserved_num;
/* Array of transmitted skb */
struct sk_buff **tx_skb;
/* Array of transmitted buffers' physical addresses */
dma_addr_t *tx_buffs;
/* Infos about transmitted buffers */
struct mvpp2_txq_pcpu_buf *buffs;
/* Index of last TX DMA descriptor that was inserted */
int txq_put_index;
@ -979,10 +987,11 @@ static void mvpp2_txq_inc_put(struct mvpp2_txq_pcpu *txq_pcpu,
struct sk_buff *skb,
struct mvpp2_tx_desc *tx_desc)
{
txq_pcpu->tx_skb[txq_pcpu->txq_put_index] = skb;
if (skb)
txq_pcpu->tx_buffs[txq_pcpu->txq_put_index] =
tx_desc->buf_phys_addr;
struct mvpp2_txq_pcpu_buf *tx_buf =
txq_pcpu->buffs + txq_pcpu->txq_put_index;
tx_buf->skb = skb;
tx_buf->size = tx_desc->data_size;
tx_buf->phys = tx_desc->buf_phys_addr;
txq_pcpu->txq_put_index++;
if (txq_pcpu->txq_put_index == txq_pcpu->size)
txq_pcpu->txq_put_index = 0;
@ -4401,17 +4410,16 @@ static void mvpp2_txq_bufs_free(struct mvpp2_port *port,
int i;
for (i = 0; i < num; i++) {
dma_addr_t buf_phys_addr =
txq_pcpu->tx_buffs[txq_pcpu->txq_get_index];
struct sk_buff *skb = txq_pcpu->tx_skb[txq_pcpu->txq_get_index];
struct mvpp2_txq_pcpu_buf *tx_buf =
txq_pcpu->buffs + txq_pcpu->txq_get_index;
mvpp2_txq_inc_get(txq_pcpu);
dma_unmap_single(port->dev->dev.parent, buf_phys_addr,
skb_headlen(skb), DMA_TO_DEVICE);
if (!skb)
dma_unmap_single(port->dev->dev.parent, tx_buf->phys,
tx_buf->size, DMA_TO_DEVICE);
if (!tx_buf->skb)
continue;
dev_kfree_skb_any(skb);
dev_kfree_skb_any(tx_buf->skb);
}
}
@ -4651,15 +4659,10 @@ static int mvpp2_txq_init(struct mvpp2_port *port,
for_each_present_cpu(cpu) {
txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
txq_pcpu->size = txq->size;
txq_pcpu->tx_skb = kmalloc(txq_pcpu->size *
sizeof(*txq_pcpu->tx_skb),
GFP_KERNEL);
if (!txq_pcpu->tx_skb)
goto error;
txq_pcpu->tx_buffs = kmalloc(txq_pcpu->size *
sizeof(dma_addr_t), GFP_KERNEL);
if (!txq_pcpu->tx_buffs)
txq_pcpu->buffs = kmalloc(txq_pcpu->size *
sizeof(struct mvpp2_txq_pcpu_buf),
GFP_KERNEL);
if (!txq_pcpu->buffs)
goto error;
txq_pcpu->count = 0;
@ -4673,8 +4676,7 @@ static int mvpp2_txq_init(struct mvpp2_port *port,
error:
for_each_present_cpu(cpu) {
txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
kfree(txq_pcpu->tx_skb);
kfree(txq_pcpu->tx_buffs);
kfree(txq_pcpu->buffs);
}
dma_free_coherent(port->dev->dev.parent,
@ -4693,8 +4695,7 @@ static void mvpp2_txq_deinit(struct mvpp2_port *port,
for_each_present_cpu(cpu) {
txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
kfree(txq_pcpu->tx_skb);
kfree(txq_pcpu->tx_buffs);
kfree(txq_pcpu->buffs);
}
if (txq->descs)

13
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
View File

@ -942,7 +942,7 @@ static void mlxsw_sp_router_neigh_update_hw(struct work_struct *work)
char rauht_pl[MLXSW_REG_RAUHT_LEN];
struct net_device *dev;
bool entry_connected;
u8 nud_state;
u8 nud_state, dead;
bool updating;
bool removing;
bool adding;
@ -953,10 +953,11 @@ static void mlxsw_sp_router_neigh_update_hw(struct work_struct *work)
dip = ntohl(*((__be32 *) n->primary_key));
memcpy(neigh_entry->ha, n->ha, sizeof(neigh_entry->ha));
nud_state = n->nud_state;
dead = n->dead;
dev = n->dev;
read_unlock_bh(&n->lock);
entry_connected = nud_state & NUD_VALID;
entry_connected = nud_state & NUD_VALID && !dead;
adding = (!neigh_entry->offloaded) && entry_connected;
updating = neigh_entry->offloaded && entry_connected;
removing = neigh_entry->offloaded && !entry_connected;
@ -1351,7 +1352,7 @@ static int mlxsw_sp_nexthop_init(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_neigh_entry *neigh_entry;
struct net_device *dev = fib_nh->nh_dev;
struct neighbour *n;
u8 nud_state;
u8 nud_state, dead;
/* Take a reference of neigh here ensuring that neigh would
* not be detructed before the nexthop entry is finished.
@ -1383,8 +1384,9 @@ static int mlxsw_sp_nexthop_init(struct mlxsw_sp *mlxsw_sp,
list_add_tail(&nh->neigh_list_node, &neigh_entry->nexthop_list);
read_lock_bh(&n->lock);
nud_state = n->nud_state;
dead = n->dead;
read_unlock_bh(&n->lock);
__mlxsw_sp_nexthop_neigh_update(nh, !(nud_state & NUD_VALID));
__mlxsw_sp_nexthop_neigh_update(nh, !(nud_state & NUD_VALID && !dead));
return 0;
}
@ -1394,6 +1396,7 @@ static void mlxsw_sp_nexthop_fini(struct mlxsw_sp *mlxsw_sp,
{
struct mlxsw_sp_neigh_entry *neigh_entry = nh->neigh_entry;
__mlxsw_sp_nexthop_neigh_update(nh, true);
list_del(&nh->neigh_list_node);
/* If that is the last nexthop connected to that neigh, remove from
@ -1452,6 +1455,8 @@ mlxsw_sp_nexthop_group_destroy(struct mlxsw_sp *mlxsw_sp,
nh = &nh_grp->nexthops[i];
mlxsw_sp_nexthop_fini(mlxsw_sp, nh);
}
mlxsw_sp_nexthop_group_refresh(mlxsw_sp, nh_grp);
WARN_ON_ONCE(nh_grp->adj_index_valid);
kfree(nh_grp);
}

8
drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
View File

@ -864,6 +864,10 @@ static int rk_gmac_powerup(struct rk_priv_data *bsp_priv)
int ret;
struct device *dev = &bsp_priv->pdev->dev;
ret = gmac_clk_enable(bsp_priv, true);
if (ret)
return ret;
/*rmii or rgmii*/
if (bsp_priv->phy_iface == PHY_INTERFACE_MODE_RGMII) {
dev_info(dev, "init for RGMII\n");
@ -880,10 +884,6 @@ static int rk_gmac_powerup(struct rk_priv_data *bsp_priv)
if (ret)
return ret;
ret = gmac_clk_enable(bsp_priv, true);
if (ret)
return ret;
pm_runtime_enable(dev);
pm_runtime_get_sync(dev);

2
drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c
View File

@ -539,7 +539,7 @@ struct mac_device_info *dwmac1000_setup(void __iomem *ioaddr, int mcbins,
mac->mii.reg_shift = 6;
mac->mii.reg_mask = 0x000007C0;
mac->mii.clk_csr_shift = 2;
mac->mii.clk_csr_mask = 0xF;
mac->mii.clk_csr_mask = GENMASK(5, 2);
/* Get and dump the chip ID */
*synopsys_id = stmmac_get_synopsys_id(hwid);

2
drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c
View File

@ -197,7 +197,7 @@ struct mac_device_info *dwmac100_setup(void __iomem *ioaddr, int *synopsys_id)
mac->mii.reg_shift = 6;
mac->mii.reg_mask = 0x000007C0;
mac->mii.clk_csr_shift = 2;
mac->mii.clk_csr_mask = 0xF;
mac->mii.clk_csr_mask = GENMASK(5, 2);
/* Synopsys Id is not available on old chips */
*synopsys_id = 0;

8
drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c
View File

@ -81,8 +81,8 @@ static int stmmac_mdio_read(struct mii_bus *bus, int phyaddr, int phyreg)
value |= (phyaddr << priv->hw->mii.addr_shift)
& priv->hw->mii.addr_mask;
value |= (phyreg << priv->hw->mii.reg_shift) & priv->hw->mii.reg_mask;
value |= (priv->clk_csr & priv->hw->mii.clk_csr_mask)
<< priv->hw->mii.clk_csr_shift;
value |= (priv->clk_csr << priv->hw->mii.clk_csr_shift)
& priv->hw->mii.clk_csr_mask;
if (priv->plat->has_gmac4)
value |= MII_GMAC4_READ;
@ -122,8 +122,8 @@ static int stmmac_mdio_write(struct mii_bus *bus, int phyaddr, int phyreg,
& priv->hw->mii.addr_mask;
value |= (phyreg << priv->hw->mii.reg_shift) & priv->hw->mii.reg_mask;
value |= ((priv->clk_csr & priv->hw->mii.clk_csr_mask)
<< priv->hw->mii.clk_csr_shift);
value |= (priv->clk_csr << priv->hw->mii.clk_csr_shift)
& priv->hw->mii.clk_csr_mask;
if (priv->plat->has_gmac4)
value |= MII_GMAC4_WRITE;

12
drivers/net/fddi/skfp/hwmtm.c
View File

@ -1483,7 +1483,7 @@ void mac_drv_clear_rx_queue(struct s_smc *smc)
r = queue->rx_curr_get ;
while (queue->rx_used) {
DRV_BUF_FLUSH(r,DDI_DMA_SYNC_FORCPU) ;
DB_RX("switch OWN bit of RxD 0x%x ",r,0,5) ;
DB_RX("switch OWN bit of RxD 0x%p ",r,0,5) ;
r->rxd_rbctrl &= ~cpu_to_le32(BMU_OWN) ;
frag_count = 1 ;
DRV_BUF_FLUSH(r,DDI_DMA_SYNC_FORDEV) ;
@ -1645,7 +1645,7 @@ void hwm_tx_frag(struct s_smc *smc, char far *virt, u_long phys, int len,
DB_TX("hwm_tx_frag: len = %d, frame_status = %x ",len,frame_status,2) ;
if (frame_status & LAN_TX) {
/* '*t' is already defined */
DB_TX("LAN_TX: TxD = %x, virt = %x ",t,virt,3) ;
DB_TX("LAN_TX: TxD = %p, virt = %p ",t,virt,3) ;
t->txd_virt = virt ;
t->txd_txdscr = cpu_to_le32(smc->os.hwm.tx_descr) ;
t->txd_tbadr = cpu_to_le32(phys) ;
@ -1819,7 +1819,7 @@ void smt_send_mbuf(struct s_smc *smc, SMbuf *mb, int fc)
__le32 tbctrl;
NDD_TRACE("THSB",mb,fc,0) ;
DB_TX("smt_send_mbuf: mb = 0x%x, fc = 0x%x",mb,fc,4) ;
DB_TX("smt_send_mbuf: mb = 0x%p, fc = 0x%x",mb,fc,4) ;
mb->sm_off-- ; /* set to fc */
mb->sm_len++ ; /* + fc */
@ -1960,7 +1960,7 @@ static void mac_drv_clear_txd(struct s_smc *smc)
do {
DRV_BUF_FLUSH(t1,DDI_DMA_SYNC_FORCPU) ;
DB_TX("check OWN/EOF bit of TxD 0x%x",t1,0,5) ;
DB_TX("check OWN/EOF bit of TxD 0x%p",t1,0,5) ;
tbctrl = le32_to_cpu(CR_READ(t1->txd_tbctrl));
if (tbctrl & BMU_OWN || !queue->tx_used){
@ -1988,7 +1988,7 @@ static void mac_drv_clear_txd(struct s_smc *smc)
}
else {
#ifndef PASS_1ST_TXD_2_TX_COMP
DB_TX("mac_drv_tx_comp for TxD 0x%x",t2,0,4) ;
DB_TX("mac_drv_tx_comp for TxD 0x%p",t2,0,4) ;
mac_drv_tx_complete(smc,t2) ;
#else
DB_TX("mac_drv_tx_comp for TxD 0x%x",
@ -2052,7 +2052,7 @@ void mac_drv_clear_tx_queue(struct s_smc *smc)
tx_used = queue->tx_used ;
while (tx_used) {
DRV_BUF_FLUSH(t,DDI_DMA_SYNC_FORCPU) ;
DB_TX("switch OWN bit of TxD 0x%x ",t,0,5) ;
DB_TX("switch OWN bit of TxD 0x%p ",t,0,5) ;
t->txd_tbctrl &= ~cpu_to_le32(BMU_OWN) ;
DRV_BUF_FLUSH(t,DDI_DMA_SYNC_FORDEV) ;
t = t->txd_next ;

2
drivers/net/fddi/skfp/pmf.c
View File

@ -284,7 +284,7 @@ void smt_pmf_received_pack(struct s_smc *smc, SMbuf *mb, int local)
SMbuf *reply ;
sm = smtod(mb,struct smt_header *) ;
DB_SMT("SMT: processing PMF frame at %x len %d\n",sm,mb->sm_len) ;
DB_SMT("SMT: processing PMF frame at %p len %d\n",sm,mb->sm_len) ;
#ifdef DEBUG
dump_smt(smc,sm,"PMF Received") ;
#endif

2
drivers/net/fddi/skfp/smt.c
View File

@ -504,7 +504,7 @@ void smt_received_pack(struct s_smc *smc, SMbuf *mb, int fs)
#endif
smt_swap_para(sm,(int) mb->sm_len,1) ;
DB_SMT("SMT : received packet [%s] at 0x%x\n",
DB_SMT("SMT : received packet [%s] at 0x%p\n",
smt_type_name[m_fc(mb) & 0xf],sm) ;
DB_SMT("SMT : version %d, class %s\n",sm->smt_version,
smt_class_name[(sm->smt_class>LAST_CLASS)?0 : sm->smt_class]) ;

174
drivers/net/virtio_net.c
View File

@ -333,9 +333,9 @@ static struct sk_buff *page_to_skb(struct virtnet_info *vi,
static void virtnet_xdp_xmit(struct virtnet_info *vi,
struct receive_queue *rq,
struct send_queue *sq,
struct xdp_buff *xdp)
struct xdp_buff *xdp,
void *data)
{
struct page *page = virt_to_head_page(xdp->data);
struct virtio_net_hdr_mrg_rxbuf *hdr;
unsigned int num_sg, len;
void *xdp_sent;
@ -343,32 +343,46 @@ static void virtnet_xdp_xmit(struct virtnet_info *vi,
/* Free up any pending old buffers before queueing new ones. */
while ((xdp_sent = virtqueue_get_buf(sq->vq, &len)) != NULL) {
struct page *sent_page = virt_to_head_page(xdp_sent);
if (vi->mergeable_rx_bufs) {
struct page *sent_page = virt_to_head_page(xdp_sent);
if (vi->mergeable_rx_bufs)
put_page(sent_page);
else
give_pages(rq, sent_page);
} else { /* small buffer */
struct sk_buff *skb = xdp_sent;
kfree_skb(skb);
}
}
/* Zero header and leave csum up to XDP layers */
hdr = xdp->data;
memset(hdr, 0, vi->hdr_len);
if (vi->mergeable_rx_bufs) {
/* Zero header and leave csum up to XDP layers */
hdr = xdp->data;
memset(hdr, 0, vi->hdr_len);
num_sg = 1;
sg_init_one(sq->sg, xdp->data, xdp->data_end - xdp->data);
num_sg = 1;
sg_init_one(sq->sg, xdp->data, xdp->data_end - xdp->data);
} else { /* small buffer */
struct sk_buff *skb = data;
/* Zero header and leave csum up to XDP layers */
hdr = skb_vnet_hdr(skb);
memset(hdr, 0, vi->hdr_len);
num_sg = 2;
sg_init_table(sq->sg, 2);
sg_set_buf(sq->sg, hdr, vi->hdr_len);
skb_to_sgvec(skb, sq->sg + 1, 0, skb->len);
}
err = virtqueue_add_outbuf(sq->vq, sq->sg, num_sg,
xdp->data, GFP_ATOMIC);
data, GFP_ATOMIC);
if (unlikely(err)) {
if (vi->mergeable_rx_bufs)
if (vi->mergeable_rx_bufs) {
struct page *page = virt_to_head_page(xdp->data);
put_page(page);
else
give_pages(rq, page);
} else /* small buffer */
kfree_skb(data);
return; // On error abort to avoid unnecessary kick
} else if (!vi->mergeable_rx_bufs) {
/* If not mergeable bufs must be big packets so cleanup pages */
give_pages(rq, (struct page *)page->private);
page->private = 0;
}
virtqueue_kick(sq->vq);
@ -377,23 +391,26 @@ static void virtnet_xdp_xmit(struct virtnet_info *vi,
static u32 do_xdp_prog(struct virtnet_info *vi,
struct receive_queue *rq,
struct bpf_prog *xdp_prog,
struct page *page, int offset, int len)
void *data, int len)
{
int hdr_padded_len;
struct xdp_buff xdp;
void *buf;
unsigned int qp;
u32 act;
u8 *buf;
buf = page_address(page) + offset;
if (vi->mergeable_rx_bufs)
if (vi->mergeable_rx_bufs) {
hdr_padded_len = sizeof(struct virtio_net_hdr_mrg_rxbuf);
else
hdr_padded_len = sizeof(struct padded_vnet_hdr);
xdp.data = data + hdr_padded_len;
xdp.data_end = xdp.data + (len - vi->hdr_len);
buf = data;
} else { /* small buffers */
struct sk_buff *skb = data;
xdp.data = buf + hdr_padded_len;
xdp.data_end = xdp.data + (len - vi->hdr_len);
xdp.data = skb->data;
xdp.data_end = xdp.data + len;
buf = skb->data;
}
act = bpf_prog_run_xdp(xdp_prog, &xdp);
switch (act) {
@ -403,8 +420,8 @@ static u32 do_xdp_prog(struct virtnet_info *vi,
qp = vi->curr_queue_pairs -
vi->xdp_queue_pairs +
smp_processor_id();
xdp.data = buf + (vi->mergeable_rx_bufs ? 0 : 4);
virtnet_xdp_xmit(vi, rq, &vi->sq[qp], &xdp);
xdp.data = buf;
virtnet_xdp_xmit(vi, rq, &vi->sq[qp], &xdp, data);
return XDP_TX;
default:
bpf_warn_invalid_xdp_action(act);
@ -414,26 +431,17 @@ static u32 do_xdp_prog(struct virtnet_info *vi,
}
}
static struct sk_buff *receive_small(struct virtnet_info *vi, void *buf, unsigned int len)
static struct sk_buff *receive_small(struct net_device *dev,
struct virtnet_info *vi,
struct receive_queue *rq,
void *buf, unsigned int len)
{
struct sk_buff * skb = buf;
struct bpf_prog *xdp_prog;
len -= vi->hdr_len;
skb_trim(skb, len);
return skb;
}
static struct sk_buff *receive_big(struct net_device *dev,
struct virtnet_info *vi,
struct receive_queue *rq,
void *buf,
unsigned int len)
{
struct bpf_prog *xdp_prog;
struct page *page = buf;
struct sk_buff *skb;
rcu_read_lock();
xdp_prog = rcu_dereference(rq->xdp_prog);
if (xdp_prog) {
@ -442,7 +450,7 @@ static struct sk_buff *receive_big(struct net_device *dev,
if (unlikely(hdr->hdr.gso_type || hdr->hdr.flags))
goto err_xdp;
act = do_xdp_prog(vi, rq, xdp_prog, page, 0, len);
act = do_xdp_prog(vi, rq, xdp_prog, skb, len);
switch (act) {
case XDP_PASS:
break;
@ -456,18 +464,33 @@ static struct sk_buff *receive_big(struct net_device *dev,
}
rcu_read_unlock();
skb = page_to_skb(vi, rq, page, 0, len, PAGE_SIZE);
return skb;
err_xdp:
rcu_read_unlock();
dev->stats.rx_dropped++;
kfree_skb(skb);
xdp_xmit:
return NULL;
}
static struct sk_buff *receive_big(struct net_device *dev,
struct virtnet_info *vi,
struct receive_queue *rq,
void *buf,
unsigned int len)
{
struct page *page = buf;
struct sk_buff *skb = page_to_skb(vi, rq, page, 0, len, PAGE_SIZE);
if (unlikely(!skb))
goto err;
return skb;
err_xdp:
rcu_read_unlock();
err:
dev->stats.rx_dropped++;
give_pages(rq, page);
xdp_xmit:
return NULL;
}
@ -483,7 +506,7 @@ xdp_xmit:
* anymore.
*/
static struct page *xdp_linearize_page(struct receive_queue *rq,
u16 num_buf,
u16 *num_buf,
struct page *p,
int offset,
unsigned int *len)
@ -497,7 +520,7 @@ static struct page *xdp_linearize_page(struct receive_queue *rq,
memcpy(page_address(page) + page_off, page_address(p) + offset, *len);
page_off += *len;
while (--num_buf) {
while (--*num_buf) {
unsigned int buflen;
unsigned long ctx;
void *buf;
@ -507,19 +530,22 @@ static struct page *xdp_linearize_page(struct receive_queue *rq,
if (unlikely(!ctx))
goto err_buf;
/* guard against a misconfigured or uncooperative backend that
* is sending packet larger than the MTU.
*/
if ((page_off + buflen) > PAGE_SIZE)
goto err_buf;
buf = mergeable_ctx_to_buf_address(ctx);
p = virt_to_head_page(buf);
off = buf - page_address(p);
/* guard against a misconfigured or uncooperative backend that
* is sending packet larger than the MTU.
*/
if ((page_off + buflen) > PAGE_SIZE) {
put_page(p);
goto err_buf;
}
memcpy(page_address(page) + page_off,
page_address(p) + off, buflen);
page_off += buflen;
put_page(p);
}
*len = page_off;
@ -552,16 +578,10 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
struct page *xdp_page;
u32 act;
/* No known backend devices should send packets with
* more than a single buffer when XDP conditions are
* met. However it is not strictly illegal so the case
* is handled as an exception and a warning is thrown.
*/
/* This happens when rx buffer size is underestimated */
if (unlikely(num_buf > 1)) {
bpf_warn_invalid_xdp_buffer();
/* linearize data for XDP */
xdp_page = xdp_linearize_page(rq, num_buf,
xdp_page = xdp_linearize_page(rq, &num_buf,
page, offset, &len);
if (!xdp_page)
goto err_xdp;
@ -575,16 +595,25 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
* the receive path after XDP is loaded. In practice I
* was not able to create this condition.
*/
if (unlikely(hdr->hdr.gso_type || hdr->hdr.flags))
if (unlikely(hdr->hdr.gso_type))
goto err_xdp;
act = do_xdp_prog(vi, rq, xdp_prog, page, offset, len);
act = do_xdp_prog(vi, rq, xdp_prog,
page_address(xdp_page) + offset, len);
switch (act) {
case XDP_PASS:
if (unlikely(xdp_page != page))
__free_pages(xdp_page, 0);
/* We can only create skb based on xdp_page. */
if (unlikely(xdp_page != page)) {
rcu_read_unlock();
put_page(page);
head_skb = page_to_skb(vi, rq, xdp_page,
0, len, PAGE_SIZE);
ewma_pkt_len_add(&rq->mrg_avg_pkt_len, len);
return head_skb;
}
break;
case XDP_TX:
ewma_pkt_len_add(&rq->mrg_avg_pkt_len, len);
if (unlikely(xdp_page != page))
goto err_xdp;
rcu_read_unlock();
@ -593,6 +622,7 @@ static struct sk_buff *receive_mergeable(struct net_device *dev,
default:
if (unlikely(xdp_page != page))
__free_pages(xdp_page, 0);
ewma_pkt_len_add(&rq->mrg_avg_pkt_len, len);
goto err_xdp;
}
}
@ -704,7 +734,7 @@ static void receive_buf(struct virtnet_info *vi, struct receive_queue *rq,
else if (vi->big_packets)
skb = receive_big(dev, vi, rq, buf, len);
else
skb = receive_small(vi, buf, len);
skb = receive_small(dev, vi, rq, buf, len);
if (unlikely(!skb))
return;
@ -1678,7 +1708,9 @@ static int virtnet_xdp_set(struct net_device *dev, struct bpf_prog *prog)
int i, err;
if (virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_TSO4) ||
virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_TSO6)) {
virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_TSO6) ||
virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_ECN) ||
virtio_has_feature(vi->vdev, VIRTIO_NET_F_GUEST_UFO)) {
netdev_warn(dev, "can't set XDP while host is implementing LRO, disable LRO first\n");
return -EOPNOTSUPP;
}

2
drivers/net/wireless/ath/ath10k/wmi.c
View File

@ -8271,7 +8271,7 @@ void ath10k_wmi_free_host_mem(struct ath10k *ar)
dma_unmap_single(ar->dev,
ar->wmi.mem_chunks[i].paddr,
ar->wmi.mem_chunks[i].len,
DMA_TO_DEVICE);
DMA_BIDIRECTIONAL);
kfree(ar->wmi.mem_chunks[i].vaddr);
}

2
drivers/net/wireless/ath/ath9k/xmit.c
View File

@ -2713,7 +2713,7 @@ void ath_tx_edma_tasklet(struct ath_softc *sc)
fifo_list = &txq->txq_fifo[txq->txq_tailidx];
if (list_empty(fifo_list)) {
ath_txq_unlock(sc, txq);
return;
break;
}
bf = list_first_entry(fifo_list, struct ath_buf, list);

7
drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
View File

@ -6868,7 +6868,7 @@ struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
err = brcmf_p2p_attach(cfg, p2pdev_forced);
if (err) {
brcmf_err("P2P initilisation failed (%d)\n", err);
brcmf_err("P2P initialisation failed (%d)\n", err);
goto wiphy_unreg_out;
}
err = brcmf_btcoex_attach(cfg);
@ -6893,7 +6893,7 @@ struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
err = brcmf_fweh_activate_events(ifp);
if (err) {
brcmf_err("FWEH activation failed (%d)\n", err);
goto wiphy_unreg_out;
goto detach;
}
/* Fill in some of the advertised nl80211 supported features */
@ -6908,6 +6908,9 @@ struct brcmf_cfg80211_info *brcmf_cfg80211_attach(struct brcmf_pub *drvr,
return cfg;
detach:
brcmf_btcoex_detach(cfg);
brcmf_p2p_detach(&cfg->p2p);
wiphy_unreg_out:
wiphy_unregister(cfg->wiphy);
priv_out:

1
drivers/net/wireless/broadcom/brcm80211/brcmfmac/pno.c
View File

@ -137,6 +137,7 @@ static int brcmf_pno_add_ssid(struct brcmf_if *ifp, struct cfg80211_ssid *ssid,
pfn.wpa_auth = cpu_to_le32(BRCMF_PNO_WPA_AUTH_ANY);
pfn.wsec = cpu_to_le32(0);
pfn.infra = cpu_to_le32(1);
pfn.flags = 0;
if (active)
pfn.flags = cpu_to_le32(1 << BRCMF_PNO_HIDDEN_BIT);
pfn.ssid.SSID_len = cpu_to_le32(ssid->ssid_len);

3
drivers/net/wireless/realtek/rtlwifi/core.c
View File

@ -1829,7 +1829,8 @@ bool rtl_cmd_send_packet(struct ieee80211_hw *hw, struct sk_buff *skb)
spin_lock_irqsave(&rtlpriv->locks.irq_th_lock, flags);
pskb = __skb_dequeue(&ring->queue);
dev_kfree_skb_irq(pskb);
if (pskb)
dev_kfree_skb_irq(pskb);
/*this is wrong, fill_tx_cmddesc needs update*/
pdesc = &ring->desc[0];

1
net/core/neighbour.c
View File

@ -100,6 +100,7 @@ static void neigh_cleanup_and_release(struct neighbour *neigh)
neigh->parms->neigh_cleanup(neigh);
__neigh_notify(neigh, RTM_DELNEIGH, 0);
call_netevent_notifiers(NETEVENT_NEIGH_UPDATE, neigh);
neigh_release(neigh);
}

2
net/ipv4/ip_sockglue.c
View File

@ -148,7 +148,7 @@ static void ip_cmsg_recv_dstaddr(struct msghdr *msg, struct sk_buff *skb)
const struct iphdr *iph = ip_hdr(skb);
__be16 *ports = (__be16 *)skb_transport_header(skb);
if (skb_transport_offset(skb) + 4 > skb->len)
if (skb_transport_offset(skb) + 4 > (int)skb->len)
return;
/* All current transport protocols have the port numbers in the

3
net/ipv4/route.c
View File

@ -798,6 +798,7 @@ static void ip_do_redirect(struct dst_entry *dst, struct sock *sk, struct sk_buf
struct rtable *rt;
struct flowi4 fl4;
const struct iphdr *iph = (const struct iphdr *) skb->data;
struct net *net = dev_net(skb->dev);
int oif = skb->dev->ifindex;
u8 tos = RT_TOS(iph->tos);
u8 prot = iph->protocol;
@ -805,7 +806,7 @@ static void ip_do_redirect(struct dst_entry *dst, struct sock *sk, struct sk_buf
rt = (struct rtable *) dst;
__build_flow_key(sock_net(sk), &fl4, sk, iph, oif, tos, prot, mark, 0);
__build_flow_key(net, &fl4, sk, iph, oif, tos, prot, mark, 0);
__ip_do_redirect(rt, skb, &fl4, true);
}

1
net/ipv4/tcp_output.c
View File

@ -769,6 +769,7 @@ static void tcp_tasklet_func(unsigned long data)
list_del(&tp->tsq_node);
sk = (struct sock *)tp;
smp_mb__before_atomic();
clear_bit(TSQ_QUEUED, &sk->sk_tsq_flags);
if (!sk->sk_lock.owned &&

2
net/ipv6/datagram.c
View File

@ -701,7 +701,7 @@ void ip6_datagram_recv_specific_ctl(struct sock *sk, struct msghdr *msg,
struct sockaddr_in6 sin6;
__be16 *ports = (__be16 *) skb_transport_header(skb);
if (skb_transport_offset(skb) + 4 <= skb->len) {
if (skb_transport_offset(skb) + 4 <= (int)skb->len) {
/* All current transport protocols have the port numbers in the
* first four bytes of the transport header and this function is
* written with this assumption in mind.

6
net/ipv6/raw.c
View File

@ -591,7 +591,11 @@ static int rawv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6,
}
offset += skb_transport_offset(skb);
BUG_ON(skb_copy_bits(skb, offset, &csum, 2));
err = skb_copy_bits(skb, offset, &csum, 2);
if (err < 0) {
ip6_flush_pending_frames(sk);
goto out;
}
/* in case cksum was not initialized */
if (unlikely(csum))

4
net/sched/act_tunnel_key.c
View File

@ -134,8 +134,8 @@ static int tunnel_key_init(struct net *net, struct nlattr *nla,
saddr = nla_get_in6_addr(tb[TCA_TUNNEL_KEY_ENC_IPV6_SRC]);
daddr = nla_get_in6_addr(tb[TCA_TUNNEL_KEY_ENC_IPV6_DST]);
metadata = __ipv6_tun_set_dst(&saddr, &daddr, 0, 0, 0,
dst_port, TUNNEL_KEY,
metadata = __ipv6_tun_set_dst(&saddr, &daddr, 0, 0, dst_port,
0, TUNNEL_KEY,
key_id, 0);
}

23
net/sched/cls_flower.c
View File

@ -442,32 +442,32 @@ static void fl_set_key_flag(u32 flower_key, u32 flower_mask,
}
}
static void fl_set_key_flags(struct nlattr **tb,
u32 *flags_key, u32 *flags_mask)
static int fl_set_key_flags(struct nlattr **tb,
u32 *flags_key, u32 *flags_mask)
{
u32 key, mask;
if (!tb[TCA_FLOWER_KEY_FLAGS])
return;
/* mask is mandatory for flags */
if (!tb[TCA_FLOWER_KEY_FLAGS_MASK])
return -EINVAL;
key = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS]));
if (!tb[TCA_FLOWER_KEY_FLAGS_MASK])
mask = ~0;
else
mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK]));
mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK]));
*flags_key = 0;
*flags_mask = 0;
fl_set_key_flag(key, mask, flags_key, flags_mask,
TCA_FLOWER_KEY_FLAGS_IS_FRAGMENT, FLOW_DIS_IS_FRAGMENT);
return 0;
}
static int fl_set_key(struct net *net, struct nlattr **tb,
struct fl_flow_key *key, struct fl_flow_key *mask)
{
__be16 ethertype;
int ret = 0;
#ifdef CONFIG_NET_CLS_IND
if (tb[TCA_FLOWER_INDEV]) {
int err = tcf_change_indev(net, tb[TCA_FLOWER_INDEV]);
@ -614,9 +614,10 @@ static int fl_set_key(struct net *net, struct nlattr **tb,
&mask->enc_tp.dst, TCA_FLOWER_KEY_ENC_UDP_DST_PORT_MASK,
sizeof(key->enc_tp.dst));
fl_set_key_flags(tb, &key->control.flags, &mask->control.flags);
if (tb[TCA_FLOWER_KEY_FLAGS])
ret = fl_set_key_flags(tb, &key->control.flags, &mask->control.flags);
return 0;
return ret;
}
static bool fl_mask_eq(struct fl_flow_mask *mask1,

4
net/sctp/associola.c
View File

@ -1471,7 +1471,7 @@ void sctp_assoc_rwnd_increase(struct sctp_association *asoc, unsigned int len)
* threshold. The idea is to recover slowly, but up
* to the initial advertised window.
*/
if (asoc->rwnd_press && asoc->rwnd >= asoc->rwnd_press) {
if (asoc->rwnd_press) {
int change = min(asoc->pathmtu, asoc->rwnd_press);
asoc->rwnd += change;
asoc->rwnd_press -= change;
@ -1539,7 +1539,7 @@ void sctp_assoc_rwnd_decrease(struct sctp_association *asoc, unsigned int len)
asoc->rwnd = 0;
}
} else {
asoc->rwnd_over = len - asoc->rwnd;
asoc->rwnd_over += len - asoc->rwnd;
asoc->rwnd = 0;
}