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2016-08-15hv_netvsc: fix bonding devices check in netvsc_netdev_event()Vitaly Kuznetsov
Bonding driver sets IFF_BONDING on both master (the bonding device) and slave (the real NIC) devices and in netvsc_netdev_event() we want to skip master devices only. Currently, there is an uncertainty when a slave interface is removed: if bonding module comes first in netdev_chain it clears IFF_BONDING flag on the netdev and netvsc_netdev_event() correctly handles NETDEV_UNREGISTER event, but in case netvsc comes first on the chain it sees the device with IFF_BONDING still attached and skips it. As we still hold vf_netdev pointer to the device we crash on the next inject. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Acked-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15hv_netvsc: protect module refcount by checking net_device_ctx->vf_netdevVitaly Kuznetsov
We're not guaranteed to see NETDEV_REGISTER/NETDEV_UNREGISTER notifications only once per VF but we increase/decrease module refcount unconditionally. Check vf_netdev to make sure we don't take/release it twice. We presume that only one VF per netvsc device may exist. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Acked-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15hv_netvsc: reset vf_inject on VF removalVitaly Kuznetsov
We reset vf_inject on VF going down (netvsc_vf_down()) but we don't on VF removal (netvsc_unregister_vf()) so vf_inject stays 'true' while vf_netdev is already NULL and we're trying to inject packets into NULL net device in netvsc_recv_callback() causing kernel to crash. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Acked-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15hv_netvsc: avoid deadlocks between rtnl lock and vf_use_cnt waitVitaly Kuznetsov
Here is a deadlock scenario: - netvsc_vf_up() schedules netvsc_notify_peers() work and quits. - netvsc_vf_down() runs before netvsc_notify_peers() gets executed. As it is being executed from netdev notifier chain we hold rtnl lock when we get here. - we enter while (atomic_read(&net_device_ctx->vf_use_cnt) != 0) loop and wait till netvsc_notify_peers() drops vf_use_cnt. - netvsc_notify_peers() starts on some other CPU but netdev_notify_peers() will hang on rtnl_lock(). - deadlock! Instead of introducing additional synchronization I suggest we drop gwrk.dwrk completely and call NETDEV_NOTIFY_PEERS directly. As we're acting under rtnl lock this is legitimate. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Acked-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15hv_netvsc: don't lose VF informationVitaly Kuznetsov
struct netvsc_device is not suitable for storing VF information as this structure is being destroyed on MTU change / set channel operation (see rndis_filter_device_remove()). Move all VF related stuff to struct net_device_context which is persistent. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Acked-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15net: hns: mdio->irq is an array, so no need to check if it is nullColin Ian King
The null check on mdio->irq is redundant since mdio->irq is an array of PHY_MAX_ADDR ints and hence can never be null. Remove the redundant check. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15qed*: Add and modify some printsYuval Mintz
This patch touches various prints in the driver - it reduces the verbosity of some prints [which were previously logged by default] while adding several new debug prints and modifying others. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15qed*: Trivial modificationsYuval Mintz
Change qed* code in trivial manner; This isn't necessarily semantic-only, but the end result is the same, i.e., no change should occur from user perspective. Changes include: - Using temporary variables to better fit 80-character restrictions. - Removal of unused variables & code with no effect. [plus some additional minor modifications]. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15qed*: Semantic changesYuval Mintz
Make semantic-only adjustments to qed* drivers, such as: - Changes in code indentation. - Usage of BIT() macro. - re-naming of variables. - Re-ordering of variable declerations. - Removal of (== 0) and (!= 0) in conditions. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15fjes: Delete owner assignmentMarkus Elfring
The field "owner" is set by core. Thus delete an extra initialisation. Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-15pptp: Refactor the struct and macros of PPTP codesGao Feng
1. Use struct gre_base_hdr directly in pptp_gre_header instead of duplicated members; 2. Use existing macros like GRE_KEY, GRE_SEQ, and so on instead of duplicated macros defined by PPTP; 3. Add new macros like GRE_IS_ACK/SEQ and so on instead of PPTP_GRE_IS_A/S and so on; Signed-off-by: Gao Feng <fgao@ikuai8.com> Reviewed-by: Philip Prindeville <philipp@redfish-solutions.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-14mlxsw: spectrum_router: Fix use after freeVincent
In mlxsw_sp_router_fib4_add_info_destroy(), the fib_entry pointer is used after it has been freed by mlxsw_sp_fib_entry_destroy(). Use a temporary variable to fix this. Fixes: 61c503f976b5449e ("mlxsw: spectrum_router: Implement fib4 add/del switchdev obj ops") Signed-off-by: Vincent Stehlé <vincent.stehle@laposte.net> Cc: Jiri Pirko <jiri@mellanox.com> Acked-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-14net: dsa: b53: remove .owner and .bus fields for driverWei Yongjun
Remove .owner and .bus fields since module_spi_driver() is used which set them automatically. Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-14net: macb: add missing free_netdev() on error in macb_probe()Wei Yongjun
Add the missing free_netdev() before return from function macb_probe() in the platform_get_irq() error handling case. Fixes: c69618b3e4f2 ("net/macb: fix probe sequence to setup clocks earlier") Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-14qed: Fix possible memory leak in qed_dcbnl_get_ieee_pfc()Wei Yongjun
'dcbx_info is malloced in qed_dcbnl_get_ieee_pfc() and should be freed before leaving from the error handling cases, otherwise it will cause memory leak. Fixes: a1d8d8a51e83 ("qed: Add dcbnl support.") Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-14cxgb4/cxgb4vf: Add set VF mac address supportHariprasad Shenai
Add ndo_set_vf_mac support which allows to set the MAC address for cxgb4vf interfaces from the host Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-14cxgb4: Add control net_device for configuring PCIe VFHariprasad Shenai
Issue: For instance, the current APIs assume a 1-to-1 mapping of Network Ports, Physical Functions and the SR-IOV Virtual Functions of those Physical Functions. This is not the case with our cards where any Virtual Function can be hooked up to any Port -- or any number of Ports the current Linux APIs also assume only 1 Network Interface/Port can be accessed per Virtual Function. Another issue is that these APIs assume that the Administrative Driver is attached to the Physical Function Associated with a Virtual Function. This is not the case with our card where all administration is performed by a Driver which is not attached to any of the Physical Functions which have SR-IOV PCI Capabilities. Another consequence of these assumptions is the inability to utilize all of the cards SR-IOV resources. For instance, our cards have SR-IOV Capabilities on Physical Functions 0..3 and the administrative Driver attaches to Physical Function 4. Each of the Physical Functions 0..3 can support up to 16 Virtual Functions. With the current Linux APIs, a 2-Port card would only be able to use the Virtual Functions on Physical Function 0..1 and not allow the Virtual Functions on Physical Functions 2..3 to be used since there are no Ports 2..3 on a 2-Port card. Fix: Since the control node is always the netdevice for all VF ACL commands. Created a dummy netdevice for each Physical Function from 0 to 3 through which one could control their VFs. The device won't be associated with any port, since it doesn't need to transmit/receive. Its purely used for VF management purpose only. The device will be registered only when VF for a particular PF is configured using PCI sysfs interface and unregistered while pci_disable_sriov() for the PF is called. Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-14{net,IB}/mlx5: MKey/PSV commands via mlx5 ifcSaeed Mahameed
Remove old representation of manually created MKey/PSV commands layout, and use mlx5_ifc canonical structures and defines. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-14{net,IB}/mlx5: CQ commands via mlx5 ifcSaeed Mahameed
Remove old representation of manually created CQ commands layout, and use mlx5_ifc canonical structures and defines. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-14net/mlx5: EQ commands via mlx5 ifcSaeed Mahameed
Remove old representation of manually created EQ commands layout, and use mlx5_ifc canonical structures and defines. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-14net/mlx5: Pages management commands via mlx5 ifcSaeed Mahameed
Remove old representation of manually created Pages management commands layout, and use mlx5_ifc canonical structures and defines. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-14net/mlx5: MCG commands via mlx5 ifcSaeed Mahameed
Remove old representation of manually created MCG commands layout and use mlx5_ifc canonical structures and defines. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-14net/mlx5: PD and UAR commands via mlx5 ifcSaeed Mahameed
Remove old representation of manually created PD/UAR commands layouts and use mlx5_ifc canonical structures and defines. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-14net/mlx5: Access register and MAD IFC commands via mlx5 ifcSaeed Mahameed
Remove old representation of manually created ACCESS_REG/MAD_IFC commands layout and use mlx5_ifc canonical structures and defines. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-14net/mlx5: Init/Teardown hca commands via mlx5 ifcSaeed Mahameed
Remove old representation of manually created Init/Teardown hca commands layout and use mlx5_ifc canonical structures and defines. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2016-08-13net: phy: initialize rc to zero to avoid returning garbage valueColin Ian King
In the case where phydev->interrupts is not PHY_INTERRUPT_ENABLED function vsc85xx_ack_interrupt is returning an uninitialized garbage value. Fix this by initializing rc to zero. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: remove type_check from dev_get_nest_level()Sabrina Dubroca
The idea for type_check in dev_get_nest_level() was to count the number of nested devices of the same type (currently, only macvlan or vlan devices). This prevented the false positive lockdep warning on configurations such as: eth0 <--- macvlan0 <--- vlan0 <--- macvlan1 However, this doesn't prevent a warning on a configuration such as: eth0 <--- macvlan0 <--- vlan0 eth1 <--- vlan1 <--- macvlan1 In this case, all the locks end up with a nesting subclass of 1, so lockdep thinks that there is still a deadlock: - in the first case we have (macvlan_netdev_addr_lock_key, 1) and then take (vlan_netdev_xmit_lock_key, 1) - in the second case, we have (vlan_netdev_xmit_lock_key, 1) and then take (macvlan_netdev_addr_lock_key, 1) By removing the linktype check in dev_get_nest_level() and always incrementing the nesting depth, lockdep considers this configuration valid. Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13macsec: fix lockdep splats when nesting devicesSabrina Dubroca
Currently, trying to setup a vlan over a macsec device, or other combinations of devices, triggers a lockdep warning. Use netdev_lockdep_set_classes and ndo_get_lock_subclass, similar to what macvlan does. Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: bfin_mac: Fix a few spelling fixesLABBE Corentin
This patch respell some word badly spelled. - Invidate instead of Invalidate - proble instead of probe Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: ethernet: mediatek: add the missing of_node_put() after node is used donesean.wang@mediatek.com
This patch adds the missing of_node_put() after finishing the usage of of_parse_phandle() or of_node_get() used by fixed_phy. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: ethernet: mediatek: fixed that initializing u64_stats_sync is missingsean.wang@mediatek.com
To fix runtime warning with lockdep is enabled due that u64_stats_sync is not initialized well, so add it. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: wireless: realtek: rtlwifi: usb: don't print error when allocating urb ↵Wolfram Sang
fails kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: wireless: marvell: mwifiex: usb: don't print error when allocating urb ↵Wolfram Sang
fails kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: wireless: marvell: libertas_tf: if_usb: don't print error when ↵Wolfram Sang
allocating urb fails kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: wireless: intersil: orinoco: orinoco_usb: don't print error when ↵Wolfram Sang
allocating urb fails kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: wireless: broadcom: brcm80211: brcmfmac: usb: don't print error when ↵Wolfram Sang
allocating urb fails kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: wireless: ath: ar5523: ar5523: don't print error when allocating urb failsWolfram Sang
kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: wimax: i2400m: usb-notif: don't print error when allocating urb failsWolfram Sang
kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: usb: usbnet: don't print error when allocating urb failsWolfram Sang
kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: usb: lan78xx: don't print error when allocating urb failsWolfram Sang
kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Acked-by: Woojung Huh <woojung.huh@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: usb: hso: don't print error when allocating urb failsWolfram Sang
kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: can: usb: usb_8dev: don't print error when allocating urb failsWolfram Sang
kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: can: usb: peak_usb: pcan_usb_core: don't print error when allocating ↵Wolfram Sang
urb fails kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: can: usb: kvaser_usb: don't print error when allocating urb failsWolfram Sang
kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: can: usb: gs_usb: don't print error when allocating urb failsWolfram Sang
kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: can: usb: esd_usb2: don't print error when allocating urb failsWolfram Sang
kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: can: usb: ems_usb: don't print error when allocating urb failsWolfram Sang
kmalloc will print enough information in case of failure. Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: fix up a few missing hashtable.h conflict resolutionsJiri Kosina
There are a couple of leftover symbol conflicts caused by hashtable.h being included by netdevice.h; those were not caught as build failure (they're "only" a warning, but in fact real bugs). Fix those up. Fixes: e87a8f24c ("net: resolve symbol conflicts with generic hashtable.h") Reported-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: thunderx: Don't set RX_PACKET_DIS while initializingSunil Goutham
Setting BGXX_SPUX_MISC_CONTROL::RX_PACKET_DIS is not needed as packet reception is anyway disabled by BGXX_CMRX_CONFIG::DATA_PKT_RX_EN. Also setting RX_PACKET_DIS causes a bogus remote fault condition which delays link detection. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-13net: thunderx: Use netdev_rss_key_fill() helperSunil Goutham
Use standard API to generate a random RSS hash key on every boot. Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>