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

Conflicts:
	drivers/net/ethernet/emulex/benet/be_main.c
	drivers/net/ethernet/intel/igb/igb_main.c
	drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c
	include/net/scm.h
	net/batman-adv/routing.c
	net/ipv4/tcp_input.c

The e{uid,gid} --> {uid,gid} credentials fix conflicted with the
cleanup in net-next to now pass cred structs around.

The be2net driver had a bug fix in 'net' that overlapped with the VLAN
interface changes by Patrick McHardy in net-next.

An IGB conflict existed because in 'net' the build_skb() support was
reverted, and in 'net-next' there was a comment style fix within that
code.

Several batman-adv conflicts were resolved by making sure that all
calls to batadv_is_my_mac() are changed to have a new bat_priv first
argument.

Eric Dumazet's TS ECR fix in TCP in 'net' conflicted with the F-RTO
rewrite in 'net-next', mostly overlapping changes.

Thanks to Stephen Rothwell and Antonio Quartulli for help with several
of these merge resolutions.

Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 35 insertions, 125 deletions

diff --git a/drivers/net/ethernet/intel/e100.c b/drivers/net/ethernet/intel/e100.c
index ec800b093e7..d2bea3f07c7 100644
--- a/drivers/net/ethernet/intel/e100.c
+++ b/drivers/net/ethernet/intel/e100.c
@@ -870,7 +870,7 @@ err_unlock:
 }
 
 static int e100_exec_cb(struct nic *nic, struct sk_buff *skb,
-	void (*cb_prepare)(struct nic *, struct cb *, struct sk_buff *))
+	int (*cb_prepare)(struct nic *, struct cb *, struct sk_buff *))
 {
 	struct cb *cb;
 	unsigned long flags;
@@ -888,10 +888,13 @@ static int e100_exec_cb(struct nic *nic, struct sk_buff *skb,
 	nic->cbs_avail--;
 	cb->skb = skb;
 
+	err = cb_prepare(nic, cb, skb);
+	if (err)
+		goto err_unlock;
+
 	if (unlikely(!nic->cbs_avail))
 		err = -ENOSPC;
 
-	cb_prepare(nic, cb, skb);
 
 	/* Order is important otherwise we'll be in a race with h/w:
 	 * set S-bit in current first, then clear S-bit in previous. */
@@ -1091,7 +1094,7 @@ static void e100_get_defaults(struct nic *nic)
 	nic->mii.mdio_write = mdio_write;
 }
 
-static void e100_configure(struct nic *nic, struct cb *cb, struct sk_buff *skb)
+static int e100_configure(struct nic *nic, struct cb *cb, struct sk_buff *skb)
 {
 	struct config *config = &cb->u.config;
 	u8 *c = (u8 *)config;
@@ -1181,6 +1184,7 @@ static void e100_configure(struct nic *nic, struct cb *cb, struct sk_buff *skb)
 	netif_printk(nic, hw, KERN_DEBUG, nic->netdev,
 		     "[16-23]=%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
 		     c[16], c[17], c[18], c[19], c[20], c[21], c[22], c[23]);
+	return 0;
 }
 
 /*************************************************************************
@@ -1331,7 +1335,7 @@ static const struct firmware *e100_request_firmware(struct nic *nic)
 	return fw;
 }
 
-static void e100_setup_ucode(struct nic *nic, struct cb *cb,
+static int e100_setup_ucode(struct nic *nic, struct cb *cb,
 			     struct sk_buff *skb)
 {
 	const struct firmware *fw = (void *)skb;
@@ -1358,6 +1362,7 @@ static void e100_setup_ucode(struct nic *nic, struct cb *cb,
 	cb->u.ucode[min_size] |= cpu_to_le32((BUNDLESMALL) ? 0xFFFF : 0xFF80);
 
 	cb->command = cpu_to_le16(cb_ucode | cb_el);
+	return 0;
 }
 
 static inline int e100_load_ucode_wait(struct nic *nic)
@@ -1400,18 +1405,20 @@ static inline int e100_load_ucode_wait(struct nic *nic)
 	return err;
 }
 
-static void e100_setup_iaaddr(struct nic *nic, struct cb *cb,
+static int e100_setup_iaaddr(struct nic *nic, struct cb *cb,
 	struct sk_buff *skb)
 {
 	cb->command = cpu_to_le16(cb_iaaddr);
 	memcpy(cb->u.iaaddr, nic->netdev->dev_addr, ETH_ALEN);
+	return 0;
 }
 
-static void e100_dump(struct nic *nic, struct cb *cb, struct sk_buff *skb)
+static int e100_dump(struct nic *nic, struct cb *cb, struct sk_buff *skb)
 {
 	cb->command = cpu_to_le16(cb_dump);
 	cb->u.dump_buffer_addr = cpu_to_le32(nic->dma_addr +
 		offsetof(struct mem, dump_buf));
+	return 0;
 }
 
 static int e100_phy_check_without_mii(struct nic *nic)
@@ -1581,7 +1588,7 @@ static int e100_hw_init(struct nic *nic)
 	return 0;
 }
 
-static void e100_multi(struct nic *nic, struct cb *cb, struct sk_buff *skb)
+static int e100_multi(struct nic *nic, struct cb *cb, struct sk_buff *skb)
 {
 	struct net_device *netdev = nic->netdev;
 	struct netdev_hw_addr *ha;
@@ -1596,6 +1603,7 @@ static void e100_multi(struct nic *nic, struct cb *cb, struct sk_buff *skb)
 		memcpy(&cb->u.multi.addr[i++ * ETH_ALEN], &ha->addr,
 			ETH_ALEN);
 	}
+	return 0;
 }
 
 static void e100_set_multicast_list(struct net_device *netdev)
@@ -1756,11 +1764,18 @@ static void e100_watchdog(unsigned long data)
 		  round_jiffies(jiffies + E100_WATCHDOG_PERIOD));
 }
 
-static void e100_xmit_prepare(struct nic *nic, struct cb *cb,
+static int e100_xmit_prepare(struct nic *nic, struct cb *cb,
 	struct sk_buff *skb)
 {
+	dma_addr_t dma_addr;
 	cb->command = nic->tx_command;
 
+	dma_addr = pci_map_single(nic->pdev,
+				  skb->data, skb->len, PCI_DMA_TODEVICE);
+	/* If we can't map the skb, have the upper layer try later */
+	if (pci_dma_mapping_error(nic->pdev, dma_addr))
+		return -ENOMEM;
+
 	/*
 	 * Use the last 4 bytes of the SKB payload packet as the CRC, used for
 	 * testing, ie sending frames with bad CRC.
@@ -1777,11 +1792,10 @@ static void e100_xmit_prepare(struct nic *nic, struct cb *cb,
 	cb->u.tcb.tcb_byte_count = 0;
 	cb->u.tcb.threshold = nic->tx_threshold;
 	cb->u.tcb.tbd_count = 1;
-	cb->u.tcb.tbd.buf_addr = cpu_to_le32(pci_map_single(nic->pdev,
-		skb->data, skb->len, PCI_DMA_TODEVICE));
-	/* check for mapping failure? */
+	cb->u.tcb.tbd.buf_addr = cpu_to_le32(dma_addr);
 	cb->u.tcb.tbd.size = cpu_to_le16(skb->len);
 	skb_tx_timestamp(skb);
+	return 0;
 }
 
 static netdev_tx_t e100_xmit_frame(struct sk_buff *skb,
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index c92115e71eb..9d6c075e232 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -293,18 +293,10 @@ struct igb_q_vector {
 enum e1000_ring_flags_t {
 	IGB_RING_FLAG_RX_SCTP_CSUM,
 	IGB_RING_FLAG_RX_LB_VLAN_BSWAP,
-	IGB_RING_FLAG_RX_BUILD_SKB_ENABLED,
 	IGB_RING_FLAG_TX_CTX_IDX,
 	IGB_RING_FLAG_TX_DETECT_HANG
 };
 
-#define ring_uses_build_skb(ring) \
-	test_bit(IGB_RING_FLAG_RX_BUILD_SKB_ENABLED, &(ring)->flags)
-#define set_ring_build_skb_enabled(ring) \
-	set_bit(IGB_RING_FLAG_RX_BUILD_SKB_ENABLED, &(ring)->flags)
-#define clear_ring_build_skb_enabled(ring) \
-	clear_bit(IGB_RING_FLAG_RX_BUILD_SKB_ENABLED, &(ring)->flags)
-
 #define IGB_TXD_DCMD (E1000_ADVTXD_DCMD_EOP | E1000_ADVTXD_DCMD_RS)
 
 #define IGB_RX_DESC(R, i)	\
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 9bf08b977da..dcaa35481dd 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -3387,20 +3387,6 @@ void igb_configure_rx_ring(struct igb_adapter *adapter,
 	wr32(E1000_RXDCTL(reg_idx), rxdctl);
 }
 
-static void igb_set_rx_buffer_len(struct igb_adapter *adapter,
-				  struct igb_ring *rx_ring)
-{
-#define IGB_MAX_BUILD_SKB_SIZE \
-	(SKB_WITH_OVERHEAD(IGB_RX_BUFSZ) - \
-	 (NET_SKB_PAD + NET_IP_ALIGN + IGB_TS_HDR_LEN))
-
-	/* set build_skb flag */
-	if (adapter->max_frame_size <= IGB_MAX_BUILD_SKB_SIZE)
-		set_ring_build_skb_enabled(rx_ring);
-	else
-		clear_ring_build_skb_enabled(rx_ring);
-}
-
 /**
  *  igb_configure_rx - Configure receive Unit after Reset
  *  @adapter: board private structure
@@ -3421,11 +3407,8 @@ static void igb_configure_rx(struct igb_adapter *adapter)
 	/* Setup the HW Rx Head and Tail Descriptor Pointers and
 	 * the Base and Length of the Rx Descriptor Ring
 	 */
-	for (i = 0; i < adapter->num_rx_queues; i++) {
-		struct igb_ring *rx_ring = adapter->rx_ring[i];
-		igb_set_rx_buffer_len(adapter, rx_ring);
-		igb_configure_rx_ring(adapter, rx_ring);
-	}
+	for (i = 0; i < adapter->num_rx_queues; i++)
+		igb_configure_rx_ring(adapter, adapter->rx_ring[i]);
 }
 
 /**
@@ -6238,78 +6221,6 @@ static bool igb_add_rx_frag(struct igb_ring *rx_ring,
 	return igb_can_reuse_rx_page(rx_buffer, page, truesize);
 }
 
-static struct sk_buff *igb_build_rx_buffer(struct igb_ring *rx_ring,
-					   union e1000_adv_rx_desc *rx_desc)
-{
-	struct igb_rx_buffer *rx_buffer;
-	struct sk_buff *skb;
-	struct page *page;
-	void *page_addr;
-	unsigned int size = le16_to_cpu(rx_desc->wb.upper.length);
-#if (PAGE_SIZE < 8192)
-	unsigned int truesize = IGB_RX_BUFSZ;
-#else
-	unsigned int truesize = SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) +
-				SKB_DATA_ALIGN(NET_SKB_PAD +
-					       NET_IP_ALIGN +
-					       size);
-#endif
-
-	/* If we spanned a buffer we have a huge mess so test for it */
-	BUG_ON(unlikely(!igb_test_staterr(rx_desc, E1000_RXD_STAT_EOP)));
-
-	rx_buffer = &rx_ring->rx_buffer_info[rx_ring->next_to_clean];
-	page = rx_buffer->page;
-	prefetchw(page);
-
-	page_addr = page_address(page) + rx_buffer->page_offset;
-
-	/* prefetch first cache line of first page */
-	prefetch(page_addr + NET_SKB_PAD + NET_IP_ALIGN);
-#if L1_CACHE_BYTES < 128
-	prefetch(page_addr + L1_CACHE_BYTES + NET_SKB_PAD + NET_IP_ALIGN);
-#endif
-
-	/* build an skb to around the page buffer */
-	skb = build_skb(page_addr, truesize);
-	if (unlikely(!skb)) {
-		rx_ring->rx_stats.alloc_failed++;
-		return NULL;
-	}
-
-	/* we are reusing so sync this buffer for CPU use */
-	dma_sync_single_range_for_cpu(rx_ring->dev,
-				      rx_buffer->dma,
-				      rx_buffer->page_offset,
-				      IGB_RX_BUFSZ,
-				      DMA_FROM_DEVICE);
-
-	/* update pointers within the skb to store the data */
-	skb_reserve(skb, NET_IP_ALIGN + NET_SKB_PAD);
-	__skb_put(skb, size);
-
-	/* pull timestamp out of packet data */
-	if (igb_test_staterr(rx_desc, E1000_RXDADV_STAT_TSIP)) {
-		igb_ptp_rx_pktstamp(rx_ring->q_vector, skb->data, skb);
-		__skb_pull(skb, IGB_TS_HDR_LEN);
-	}
-
-	if (igb_can_reuse_rx_page(rx_buffer, page, truesize)) {
-		/* hand second half of page back to the ring */
-		igb_reuse_rx_page(rx_ring, rx_buffer);
-	} else {
-		/* we are not reusing the buffer so unmap it */
-		dma_unmap_page(rx_ring->dev, rx_buffer->dma,
-			       PAGE_SIZE, DMA_FROM_DEVICE);
-	}
-
-	/* clear contents of buffer_info */
-	rx_buffer->dma = 0;
-	rx_buffer->page = NULL;
-
-	return skb;
-}
-
 static struct sk_buff *igb_fetch_rx_buffer(struct igb_ring *rx_ring,
 					   union e1000_adv_rx_desc *rx_desc,
 					   struct sk_buff *skb)
@@ -6719,10 +6630,7 @@ static bool igb_clean_rx_irq(struct igb_q_vector *q_vector, const int budget)
 		rmb();
 
 		/* retrieve a buffer from the ring */
-		if (ring_uses_build_skb(rx_ring))
-			skb = igb_build_rx_buffer(rx_ring, rx_desc);
-		else
-			skb = igb_fetch_rx_buffer(rx_ring, rx_desc, skb);
+		skb = igb_fetch_rx_buffer(rx_ring, rx_desc, skb);
 
 		/* exit if we failed to retrieve a buffer */
 		if (!skb)
@@ -6808,14 +6716,6 @@ static bool igb_alloc_mapped_page(struct igb_ring *rx_ring,
 	return true;
 }
 
-static inline unsigned int igb_rx_offset(struct igb_ring *rx_ring)
-{
-	if (ring_uses_build_skb(rx_ring))
-		return NET_SKB_PAD + NET_IP_ALIGN;
-	else
-		return 0;
-}
-
 /**
  *  igb_alloc_rx_buffers - Replace used receive buffers; packet split
  *  @adapter: address of board private structure
@@ -6841,9 +6741,7 @@ void igb_alloc_rx_buffers(struct igb_ring *rx_ring, u16 cleaned_count)
 		/* Refresh the desc even if buffer_addrs didn't change
 		 * because each write-back erases this info.
 		 */
-		rx_desc->read.pkt_addr = cpu_to_le64(bi->dma +
-						     bi->page_offset +
-						     igb_rx_offset(rx_ring));
+		rx_desc->read.pkt_addr = cpu_to_le64(bi->dma + bi->page_offset);
 
 		rx_desc++;
 		bi++;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index 2d4bdcc4fdb..1e7d587c4e5 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -1052,6 +1052,12 @@ int ixgbe_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos)
 	if ((vf >= adapter->num_vfs) || (vlan > 4095) || (qos > 7))
 		return -EINVAL;
 	if (vlan || qos) {
+		if (adapter->vfinfo[vf].pf_vlan)
+			err = ixgbe_set_vf_vlan(adapter, false,
+						adapter->vfinfo[vf].pf_vlan,
+						vf);
+		if (err)
+			goto out;
 		err = ixgbe_set_vf_vlan(adapter, true, vlan, vf);
 		if (err)
 			goto out;