From e222ade63f038378eec6266c0587db0b98cfc779 Mon Sep 17 00:00:00 2001 From: Lucas Tanure Date: Tue, 12 Aug 2014 06:30:23 +0000 Subject: i40e: Fix missing uapi/linux/dcbnl.h include in i40e_fcoe.c Fix missing include in Intel i40e driver. Without this include linux next tree won't compile. Signed-off-by: Lucas Tanure Tested-by: Jim Young Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_fcoe.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/intel/i40e/i40e_fcoe.c b/drivers/net/ethernet/intel/i40e/i40e_fcoe.c index 6938fc1ad877..5d01db1d789b 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_fcoe.c +++ b/drivers/net/ethernet/intel/i40e/i40e_fcoe.c @@ -33,6 +33,7 @@ #include #include #include +#include #include "i40e.h" #include "i40e_fcoe.h" -- cgit From 952d9639dba84e2a979cf4dd8edab3542b477ba3 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Wed, 30 Jul 2014 09:02:53 +0000 Subject: i40e: fix sparse non static symbol warning Fixes the following sparse warnings: drivers/net/ethernet/intel/i40e/i40e_nvm.c:254:13: warning: symbol 'i40e_write_nvm_aq' was not declared. Should it be static? Signed-off-by: Wei Yongjun Tested-By: Jim Young Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_nvm.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c index 97bda3dffd49..25c4f9a3011f 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c +++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c @@ -251,9 +251,9 @@ i40e_status i40e_read_nvm_buffer(struct i40e_hw *hw, u16 offset, * * Writes a 16 bit words buffer to the Shadow RAM using the admin command. **/ -i40e_status i40e_write_nvm_aq(struct i40e_hw *hw, u8 module_pointer, - u32 offset, u16 words, void *data, - bool last_command) +static i40e_status i40e_write_nvm_aq(struct i40e_hw *hw, u8 module_pointer, + u32 offset, u16 words, void *data, + bool last_command) { i40e_status ret_code = I40E_ERR_NVM; -- cgit From f57e4fbdcc8f65b94d59ce5566c781c46a298c28 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Wed, 30 Jul 2014 03:11:09 +0000 Subject: i40e: use correct structure type name in sizeof Correct typo in the name of the type given to sizeof. Because it is the size of a pointer that is wanted, the typo has no impact on compilation or execution. This problem was found using Coccinelle (http://coccinelle.lip6.fr/). The semantic patch used can be found in message 0 of this patch series. Signed-off-by: Julia Lawall Tested-By: Jim Young Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 51bc03072ed3..2ac8f45d7c19 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -6293,7 +6293,7 @@ static int i40e_vsi_alloc_arrays(struct i40e_vsi *vsi, bool alloc_qvectors) if (alloc_qvectors) { /* allocate memory for q_vector pointers */ - size = sizeof(struct i40e_q_vectors *) * vsi->num_q_vectors; + size = sizeof(struct i40e_q_vector *) * vsi->num_q_vectors; vsi->q_vectors = kzalloc(size, GFP_KERNEL); if (!vsi->q_vectors) { ret = -ENOMEM; -- cgit From 35a7d8045931d384c3d02f28287e0eb42d6038f4 Mon Sep 17 00:00:00 2001 From: Rickard Strandqvist Date: Tue, 29 Jul 2014 09:26:25 +0000 Subject: i40e: Cleaning up missing null-terminate in conjunction with strncpy Replacing strncpy with strlcpy to avoid strings that lacks null terminate. Signed-off-by: Rickard Strandqvist Tested-By: Jim Young Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_main.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 2ac8f45d7c19..871474f6fe62 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -4415,13 +4415,13 @@ static void i40e_print_link_message(struct i40e_vsi *vsi, bool isup) switch (vsi->back->hw.phy.link_info.link_speed) { case I40E_LINK_SPEED_40GB: - strncpy(speed, "40 Gbps", SPEED_SIZE); + strlcpy(speed, "40 Gbps", SPEED_SIZE); break; case I40E_LINK_SPEED_10GB: - strncpy(speed, "10 Gbps", SPEED_SIZE); + strlcpy(speed, "10 Gbps", SPEED_SIZE); break; case I40E_LINK_SPEED_1GB: - strncpy(speed, "1000 Mbps", SPEED_SIZE); + strlcpy(speed, "1000 Mbps", SPEED_SIZE); break; default: break; @@ -4429,16 +4429,16 @@ static void i40e_print_link_message(struct i40e_vsi *vsi, bool isup) switch (vsi->back->hw.fc.current_mode) { case I40E_FC_FULL: - strncpy(fc, "RX/TX", FC_SIZE); + strlcpy(fc, "RX/TX", FC_SIZE); break; case I40E_FC_TX_PAUSE: - strncpy(fc, "TX", FC_SIZE); + strlcpy(fc, "TX", FC_SIZE); break; case I40E_FC_RX_PAUSE: - strncpy(fc, "RX", FC_SIZE); + strlcpy(fc, "RX", FC_SIZE); break; default: - strncpy(fc, "None", FC_SIZE); + strlcpy(fc, "None", FC_SIZE); break; } @@ -5839,7 +5839,7 @@ static void i40e_send_version(struct i40e_pf *pf) dv.minor_version = DRV_VERSION_MINOR; dv.build_version = DRV_VERSION_BUILD; dv.subbuild_version = 0; - strncpy(dv.driver_string, DRV_VERSION, sizeof(dv.driver_string)); + strlcpy(dv.driver_string, DRV_VERSION, sizeof(dv.driver_string)); i40e_aq_send_driver_version(&pf->hw, &dv, NULL); } -- cgit From da8ed50b8b1f2f5a146ebd068ccbb1e721ee28db Mon Sep 17 00:00:00 2001 From: Jean Sacren Date: Tue, 5 Aug 2014 08:01:03 +0000 Subject: e1000e: fix trivial kernel doc typos The macro E1000_success is meant to be E1000_SUCCESS. As the return statement in the function is good as is, let's simply correct the comment for this trivial matter. Additionally E1000_ERR_HOST_INTERFACE_COMMAND is supposed to be -E1000_ERR_HOST_INTERFACE_COMMAND. Signed-off-by: Jean Sacren Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/e1000e/manage.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/intel/e1000e/manage.c b/drivers/net/ethernet/intel/e1000e/manage.c index 58856032298d..e156664d5ba1 100644 --- a/drivers/net/ethernet/intel/e1000e/manage.c +++ b/drivers/net/ethernet/intel/e1000e/manage.c @@ -47,7 +47,7 @@ static u8 e1000_calculate_checksum(u8 *buffer, u32 length) * e1000_mng_enable_host_if - Checks host interface is enabled * @hw: pointer to the HW structure * - * Returns E1000_success upon success, else E1000_ERR_HOST_INTERFACE_COMMAND + * Returns 0 upon success, else -E1000_ERR_HOST_INTERFACE_COMMAND * * This function checks whether the HOST IF is enabled for command operation * and also checks whether the previous command is completed. It busy waits -- cgit From 5e815d84180edcc6bf8e3d9c7d3b2ee0cf79b6ba Mon Sep 17 00:00:00 2001 From: Jean Sacren Date: Tue, 5 Aug 2014 08:01:31 +0000 Subject: e1000e: delete excessive space character in debug message There is an excessive space character between the word and the period in the debug message. So delete it. Signed-off-by: Jean Sacren Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/e1000e/manage.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/intel/e1000e/manage.c b/drivers/net/ethernet/intel/e1000e/manage.c index e156664d5ba1..06edfca1a35e 100644 --- a/drivers/net/ethernet/intel/e1000e/manage.c +++ b/drivers/net/ethernet/intel/e1000e/manage.c @@ -78,7 +78,7 @@ static s32 e1000_mng_enable_host_if(struct e1000_hw *hw) } if (i == E1000_MNG_DHCP_COMMAND_TIMEOUT) { - e_dbg("Previous command timeout failed .\n"); + e_dbg("Previous command timeout failed.\n"); return -E1000_ERR_HOST_INTERFACE_COMMAND; } -- cgit From 10545937e866ccdbb7ab583031dbdcc6b14e4eb4 Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Tue, 12 Aug 2014 10:35:19 +0200 Subject: myri10ge: check for DMA mapping errors On IOMMU systems DMA mapping can fail, we need to check for that possibility. Signed-off-by: Stanislaw Gruszka Signed-off-by: David S. Miller --- drivers/net/ethernet/myricom/myri10ge/myri10ge.c | 88 ++++++++++++++++-------- 1 file changed, 58 insertions(+), 30 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c index 69c26f04d8ce..679db026f4be 100644 --- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c +++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c @@ -873,6 +873,10 @@ static int myri10ge_dma_test(struct myri10ge_priv *mgp, int test_type) return -ENOMEM; dmatest_bus = pci_map_page(mgp->pdev, dmatest_page, 0, PAGE_SIZE, DMA_BIDIRECTIONAL); + if (unlikely(pci_dma_mapping_error(mgp->pdev, dmatest_bus))) { + __free_page(dmatest_page); + return -ENOMEM; + } /* Run a small DMA test. * The magic multipliers to the length tell the firmware @@ -1294,6 +1298,7 @@ myri10ge_alloc_rx_pages(struct myri10ge_priv *mgp, struct myri10ge_rx_buf *rx, int bytes, int watchdog) { struct page *page; + dma_addr_t bus; int idx; #if MYRI10GE_ALLOC_SIZE > 4096 int end_offset; @@ -1318,11 +1323,21 @@ myri10ge_alloc_rx_pages(struct myri10ge_priv *mgp, struct myri10ge_rx_buf *rx, rx->watchdog_needed = 1; return; } + + bus = pci_map_page(mgp->pdev, page, 0, + MYRI10GE_ALLOC_SIZE, + PCI_DMA_FROMDEVICE); + if (unlikely(pci_dma_mapping_error(mgp->pdev, bus))) { + __free_pages(page, MYRI10GE_ALLOC_ORDER); + if (rx->fill_cnt - rx->cnt < 16) + rx->watchdog_needed = 1; + return; + } + rx->page = page; rx->page_offset = 0; - rx->bus = pci_map_page(mgp->pdev, page, 0, - MYRI10GE_ALLOC_SIZE, - PCI_DMA_FROMDEVICE); + rx->bus = bus; + } rx->info[idx].page = rx->page; rx->info[idx].page_offset = rx->page_offset; @@ -2764,6 +2779,35 @@ myri10ge_submit_req(struct myri10ge_tx_buf *tx, struct mcp_kreq_ether_send *src, mb(); } +static void myri10ge_unmap_tx_dma(struct myri10ge_priv *mgp, + struct myri10ge_tx_buf *tx, int idx) +{ + unsigned int len; + int last_idx; + + /* Free any DMA resources we've alloced and clear out the skb slot */ + last_idx = (idx + 1) & tx->mask; + idx = tx->req & tx->mask; + do { + len = dma_unmap_len(&tx->info[idx], len); + if (len) { + if (tx->info[idx].skb != NULL) + pci_unmap_single(mgp->pdev, + dma_unmap_addr(&tx->info[idx], + bus), len, + PCI_DMA_TODEVICE); + else + pci_unmap_page(mgp->pdev, + dma_unmap_addr(&tx->info[idx], + bus), len, + PCI_DMA_TODEVICE); + dma_unmap_len_set(&tx->info[idx], len, 0); + tx->info[idx].skb = NULL; + } + idx = (idx + 1) & tx->mask; + } while (idx != last_idx); +} + /* * Transmit a packet. We need to split the packet so that a single * segment does not cross myri10ge->tx_boundary, so this makes segment @@ -2787,7 +2831,7 @@ static netdev_tx_t myri10ge_xmit(struct sk_buff *skb, u32 low; __be32 high_swapped; unsigned int len; - int idx, last_idx, avail, frag_cnt, frag_idx, count, mss, max_segments; + int idx, avail, frag_cnt, frag_idx, count, mss, max_segments; u16 pseudo_hdr_offset, cksum_offset, queue; int cum_len, seglen, boundary, rdma_count; u8 flags, odd_flag; @@ -2884,9 +2928,12 @@ again: /* map the skb for DMA */ len = skb_headlen(skb); + bus = pci_map_single(mgp->pdev, skb->data, len, PCI_DMA_TODEVICE); + if (unlikely(pci_dma_mapping_error(mgp->pdev, bus))) + goto drop; + idx = tx->req & tx->mask; tx->info[idx].skb = skb; - bus = pci_map_single(mgp->pdev, skb->data, len, PCI_DMA_TODEVICE); dma_unmap_addr_set(&tx->info[idx], bus, bus); dma_unmap_len_set(&tx->info[idx], len, len); @@ -2985,12 +3032,16 @@ again: break; /* map next fragment for DMA */ - idx = (count + tx->req) & tx->mask; frag = &skb_shinfo(skb)->frags[frag_idx]; frag_idx++; len = skb_frag_size(frag); bus = skb_frag_dma_map(&mgp->pdev->dev, frag, 0, len, DMA_TO_DEVICE); + if (unlikely(pci_dma_mapping_error(mgp->pdev, bus))) { + myri10ge_unmap_tx_dma(mgp, tx, idx); + goto drop; + } + idx = (count + tx->req) & tx->mask; dma_unmap_addr_set(&tx->info[idx], bus, bus); dma_unmap_len_set(&tx->info[idx], len, len); } @@ -3021,31 +3072,8 @@ again: return NETDEV_TX_OK; abort_linearize: - /* Free any DMA resources we've alloced and clear out the skb - * slot so as to not trip up assertions, and to avoid a - * double-free if linearizing fails */ + myri10ge_unmap_tx_dma(mgp, tx, idx); - last_idx = (idx + 1) & tx->mask; - idx = tx->req & tx->mask; - tx->info[idx].skb = NULL; - do { - len = dma_unmap_len(&tx->info[idx], len); - if (len) { - if (tx->info[idx].skb != NULL) - pci_unmap_single(mgp->pdev, - dma_unmap_addr(&tx->info[idx], - bus), len, - PCI_DMA_TODEVICE); - else - pci_unmap_page(mgp->pdev, - dma_unmap_addr(&tx->info[idx], - bus), len, - PCI_DMA_TODEVICE); - dma_unmap_len_set(&tx->info[idx], len, 0); - tx->info[idx].skb = NULL; - } - idx = (idx + 1) & tx->mask; - } while (idx != last_idx); if (skb_is_gso(skb)) { netdev_err(mgp->dev, "TSO but wanted to linearize?!?!?\n"); goto drop; -- cgit From 1f6394e382f137f07136182c591ca8a7eeba6a06 Mon Sep 17 00:00:00 2001 From: Sowmini Varadhan Date: Tue, 12 Aug 2014 10:27:24 -0400 Subject: sunvnet: Do not ask for an ACK for every dring transmit No need to ask for an ack with every vnet_start_xmit()- the single ACK with DRING_STOPPED is sufficient for the protocol, and we free the sk_buff in vnet_start_xmit itself, so we dont need an ACK back. Signed-off-by: Sowmini Varadhan Acked-by: Raghuram Kothakota Signed-off-by: David S. Miller --- drivers/net/ethernet/sun/sunvnet.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/sun/sunvnet.c b/drivers/net/ethernet/sun/sunvnet.c index d813bfb1a847..238434dcfe02 100644 --- a/drivers/net/ethernet/sun/sunvnet.c +++ b/drivers/net/ethernet/sun/sunvnet.c @@ -691,7 +691,15 @@ static int vnet_start_xmit(struct sk_buff *skb, struct net_device *dev) memset(tx_buf+VNET_PACKET_SKIP+skb->len, 0, len - skb->len); } - d->hdr.ack = VIO_ACK_ENABLE; + /* We don't rely on the ACKs to free the skb in vnet_start_xmit(), + * thus it is safe to not set VIO_ACK_ENABLE for each transmission: + * the protocol itself does not require it as long as the peer + * sends a VIO_SUBTYPE_ACK for VIO_DRING_STOPPED. + * + * An ACK for every packet in the ring is expensive as the + * sending of LDC messages is slow and affects performance. + */ + d->hdr.ack = VIO_ACK_DISABLE; d->size = len; d->ncookies = port->tx_bufs[dr->prod].ncookies; for (i = 0; i < d->ncookies; i++) -- cgit From adddc32d6fde82156c779997f928865100542e55 Mon Sep 17 00:00:00 2001 From: Sowmini Varadhan Date: Tue, 12 Aug 2014 10:33:10 -0400 Subject: sunvnet: Do not spin in an infinite loop when vio_ldc_send() returns EAGAIN ldc_rx -> vnet_rx -> .. -> vnet_walk_rx->vnet_send_ack should not spin into an infinite loop waiting EAGAIN to lift. The sender could have sent us a burst, and gone to lunch without doing any more ldc_read()'s. That should not cause the receiver to loop infinitely till soft-lockup kicks in. Similarly __vnet_tx_trigger should only loop on EAGAIN a finite number of times. The caller (vnet_start_xmit()) already has code to reset the dring state and bail on errors from __vnet_tx_trigger Signed-off-by: Sowmini Varadhan Acked-by: Raghuram Kothakota Signed-off-by: David S. Miller --- drivers/net/ethernet/sun/sunvnet.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/sun/sunvnet.c b/drivers/net/ethernet/sun/sunvnet.c index 238434dcfe02..a5871791e452 100644 --- a/drivers/net/ethernet/sun/sunvnet.c +++ b/drivers/net/ethernet/sun/sunvnet.c @@ -32,6 +32,11 @@ MODULE_DESCRIPTION("Sun LDOM virtual network driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_MODULE_VERSION); +/* Heuristic for the number of times to exponentially backoff and + * retry sending an LDC trigger when EAGAIN is encountered + */ +#define VNET_MAX_RETRIES 10 + /* Ordered from largest major to lowest */ static struct vio_version vnet_versions[] = { { .major = 1, .minor = 0 }, @@ -260,6 +265,7 @@ static int vnet_send_ack(struct vnet_port *port, struct vio_dring_state *dr, .state = vio_dring_state, }; int err, delay; + int retries = 0; hdr.seq = dr->snd_nxt; delay = 1; @@ -272,6 +278,13 @@ static int vnet_send_ack(struct vnet_port *port, struct vio_dring_state *dr, udelay(delay); if ((delay <<= 1) > 128) delay = 128; + if (retries++ > VNET_MAX_RETRIES) { + pr_info("ECONNRESET %x:%x:%x:%x:%x:%x\n", + port->raddr[0], port->raddr[1], + port->raddr[2], port->raddr[3], + port->raddr[4], port->raddr[5]); + err = -ECONNRESET; + } } while (err == -EAGAIN); return err; @@ -593,6 +606,7 @@ static int __vnet_tx_trigger(struct vnet_port *port) .end_idx = (u32) -1, }; int err, delay; + int retries = 0; hdr.seq = dr->snd_nxt; delay = 1; @@ -605,6 +619,8 @@ static int __vnet_tx_trigger(struct vnet_port *port) udelay(delay); if ((delay <<= 1) > 128) delay = 128; + if (retries++ > VNET_MAX_RETRIES) + break; } while (err == -EAGAIN); return err; -- cgit From 1d311ad2f9fe5d75cf228372174170d0f435e3ef Mon Sep 17 00:00:00 2001 From: Sowmini Varadhan Date: Wed, 13 Aug 2014 10:29:41 -0400 Subject: sunvnet: Schedule maybe_tx_wakeup() as a tasklet from ldc_rx path At the tail of vnet_event(), if we hit the maybe_tx_wakeup() condition, we try to take the netif_tx_lock() in the recv-interrupt-context and can deadlock with dev_watchdog(). vnet_event() should schedule maybe_tx_wakeup() as a tasklet to avoid this deadlock Signed-off-by: Sowmini Varadhan Signed-off-by: David S. Miller --- drivers/net/ethernet/sun/sunvnet.c | 12 ++++++++++-- drivers/net/ethernet/sun/sunvnet.h | 4 ++++ 2 files changed, 14 insertions(+), 2 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/sun/sunvnet.c b/drivers/net/ethernet/sun/sunvnet.c index a5871791e452..23c89ab5a6ad 100644 --- a/drivers/net/ethernet/sun/sunvnet.c +++ b/drivers/net/ethernet/sun/sunvnet.c @@ -488,8 +488,9 @@ static int handle_mcast(struct vnet_port *port, void *msgbuf) return 0; } -static void maybe_tx_wakeup(struct vnet *vp) +static void maybe_tx_wakeup(unsigned long param) { + struct vnet *vp = (struct vnet *)param; struct net_device *dev = vp->dev; netif_tx_lock(dev); @@ -586,8 +587,13 @@ static void vnet_event(void *arg, int event) break; } spin_unlock(&vio->lock); + /* Kick off a tasklet to wake the queue. We cannot call + * maybe_tx_wakeup directly here because we could deadlock on + * netif_tx_lock() with dev_watchdog() + */ if (unlikely(tx_wakeup && err != -ECONNRESET)) - maybe_tx_wakeup(port->vp); + tasklet_schedule(&port->vp->vnet_tx_wakeup); + local_irq_restore(flags); } @@ -1070,6 +1076,7 @@ static struct vnet *vnet_new(const u64 *local_mac) vp = netdev_priv(dev); spin_lock_init(&vp->lock); + tasklet_init(&vp->vnet_tx_wakeup, maybe_tx_wakeup, (unsigned long)vp); vp->dev = dev; INIT_LIST_HEAD(&vp->port_list); @@ -1129,6 +1136,7 @@ static void vnet_cleanup(void) vp = list_first_entry(&vnet_list, struct vnet, list); list_del(&vp->list); dev = vp->dev; + tasklet_kill(&vp->vnet_tx_wakeup); /* vio_unregister_driver() should have cleaned up port_list */ BUG_ON(!list_empty(&vp->port_list)); unregister_netdev(dev); diff --git a/drivers/net/ethernet/sun/sunvnet.h b/drivers/net/ethernet/sun/sunvnet.h index d347a5bf24b0..de5c2c64996f 100644 --- a/drivers/net/ethernet/sun/sunvnet.h +++ b/drivers/net/ethernet/sun/sunvnet.h @@ -1,6 +1,8 @@ #ifndef _SUNVNET_H #define _SUNVNET_H +#include + #define DESC_NCOOKIES(entry_size) \ ((entry_size) - sizeof(struct vio_net_desc)) @@ -78,6 +80,8 @@ struct vnet { struct list_head list; u64 local_mac; + + struct tasklet_struct vnet_tx_wakeup; }; #endif /* _SUNVNET_H */ -- cgit From 7b31b4deda7679120379c005df8d3d647161eff7 Mon Sep 17 00:00:00 2001 From: Govindarajulu Varadarajan <_govind@gmx.com> Date: Wed, 13 Aug 2014 13:04:56 +0530 Subject: tg3: fix return value in tg3_get_stats64 When tp->hw_stats is 0, tg3_get_stats64 should display previously recorded stats. So it returns &tp->net_stats_prev. But the caller, dev_get_stats, ignores the return value. Fix this by assigning tp->net_stats_prev to stats and returning stats. Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Acked-by: Prashant Sreedharan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/tg3.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c index a3dd5dc64f4c..4296b3d26f02 100644 --- a/drivers/net/ethernet/broadcom/tg3.c +++ b/drivers/net/ethernet/broadcom/tg3.c @@ -14093,8 +14093,9 @@ static struct rtnl_link_stats64 *tg3_get_stats64(struct net_device *dev, spin_lock_bh(&tp->lock); if (!tp->hw_stats) { + *stats = tp->net_stats_prev; spin_unlock_bh(&tp->lock); - return &tp->net_stats_prev; + return stats; } tg3_get_nstats(tp, stats); -- cgit From fdd42e4400fcb5fe837a20a8d837ef094d5a26fb Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Wed, 13 Aug 2014 13:54:22 +0200 Subject: net: xilinx: Remove .owner field for driver There is no need to init .owner field. Based on the patch from Peter Griffin "mmc: remove .owner field for drivers using module_platform_driver" This patch removes the superflous .owner field for drivers which use the module_platform_driver API, as this is overriden in platform_driver_register anyway." Signed-off-by: Michal Simek Signed-off-by: David S. Miller --- drivers/net/ethernet/xilinx/ll_temac_main.c | 1 - drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 1 - drivers/net/ethernet/xilinx/xilinx_emaclite.c | 1 - 3 files changed, 3 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c index 36f4459520c3..fda5891835d4 100644 --- a/drivers/net/ethernet/xilinx/ll_temac_main.c +++ b/drivers/net/ethernet/xilinx/ll_temac_main.c @@ -1170,7 +1170,6 @@ static struct platform_driver temac_of_driver = { .probe = temac_of_probe, .remove = temac_of_remove, .driver = { - .owner = THIS_MODULE, .name = "xilinx_temac", .of_match_table = temac_of_match, }, diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c index 30e8608ff050..c8fd94133ecd 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c @@ -1645,7 +1645,6 @@ static struct platform_driver axienet_of_driver = { .probe = axienet_of_probe, .remove = axienet_of_remove, .driver = { - .owner = THIS_MODULE, .name = "xilinx_axienet", .of_match_table = axienet_of_match, }, diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c index 782bb9373cd8..28dbbdc393eb 100644 --- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c +++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c @@ -1245,7 +1245,6 @@ MODULE_DEVICE_TABLE(of, xemaclite_of_match); static struct platform_driver xemaclite_of_driver = { .driver = { .name = DRIVER_NAME, - .owner = THIS_MODULE, .of_match_table = xemaclite_of_match, }, .probe = xemaclite_of_probe, -- cgit From 9b9ba821b6c47b6d1a711b8f6fff931277217bab Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Thu, 14 Aug 2014 13:59:42 +0200 Subject: net: xgene: Check negative return value of xgene_enet_get_ring_size() xgene_enet_get_ring_size() returns a negative value in case of an error, but its only caller in xgene_enet_create_desc_ring() currently uses the return value directly as u32. Instead, check for a negative value first and error out in case. Also move the call to xgene_enet_get_ring_size() before devm_kzalloc() so we don't need to free anything in the error path. This fixes the following issue reported by the Coverity Scanner: ** CID 1231336: Improper use of negative value (NEGATIVE_RETURNS) /drivers/net/ethernet/apm/xgene/xgene_enet_main.c: 596 in xgene_enet_create_desc_ring() Signed-off-by: Tobias Klauser Signed-off-by: David S. Miller --- drivers/net/ethernet/apm/xgene/xgene_enet_main.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c index af7c40ac1455..e1a8f4e19983 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c @@ -581,7 +581,11 @@ static struct xgene_enet_desc_ring *xgene_enet_create_desc_ring( struct xgene_enet_desc_ring *ring; struct xgene_enet_pdata *pdata = netdev_priv(ndev); struct device *dev = ndev_to_dev(ndev); - u32 size; + int size; + + size = xgene_enet_get_ring_size(dev, cfgsize); + if (size < 0) + return NULL; ring = devm_kzalloc(dev, sizeof(struct xgene_enet_desc_ring), GFP_KERNEL); @@ -593,7 +597,6 @@ static struct xgene_enet_desc_ring *xgene_enet_create_desc_ring( ring->cfgsize = cfgsize; ring->id = ring_id; - size = xgene_enet_get_ring_size(dev, cfgsize); ring->desc_addr = dma_zalloc_coherent(dev, size, &ring->dma, GFP_KERNEL); if (!ring->desc_addr) { -- cgit From 3b3e0ea8bc0f46e8291295003f70225e5a66acbc Mon Sep 17 00:00:00 2001 From: Andreas Ruprecht Date: Thu, 14 Aug 2014 14:26:23 +0200 Subject: net: ethernet: ibm: ehea: Remove duplicate object from Makefile In the Makefile, ehea_phyp.o is included twice in the list of object files compile into ehea.o. This change removes one instance. Signed-off-by: Andreas Ruprecht Signed-off-by: David S. Miller --- drivers/net/ethernet/ibm/ehea/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net/ethernet') diff --git a/drivers/net/ethernet/ibm/ehea/Makefile b/drivers/net/ethernet/ibm/ehea/Makefile index 775d9969b5c2..cd473e295242 100644 --- a/drivers/net/ethernet/ibm/ehea/Makefile +++ b/drivers/net/ethernet/ibm/ehea/Makefile @@ -1,6 +1,6 @@ # # Makefile for the eHEA ethernet device driver for IBM eServer System p # -ehea-y = ehea_main.o ehea_phyp.o ehea_qmr.o ehea_ethtool.o ehea_phyp.o +ehea-y = ehea_main.o ehea_phyp.o ehea_qmr.o ehea_ethtool.o obj-$(CONFIG_EHEA) += ehea.o -- cgit