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2016-04-19arcnet: com90xx: add __init attributeJulia Lawall1-1/+1
Add __init attribute on a function that is only called from other __init functions and that is not inlined, at least with gcc version 4.8.4 on an x86 machine with allyesconfig. Currently, the function is put in the .text.unlikely segment. Declaring it as __init will cause it to be put in the .init.text and to disappear after initialization. The result of objdump -x on the function before the change is as follows: 0000000000000000 l F .text.unlikely 00000000000000bf check_mirror And after the change it is as follows: 0000000000000000 l F .init.text 00000000000000ba check_mirror Done with the help of Coccinelle. The semantic patch checks for local static non-init functions that are called from an __init function and are not called from any other function. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Michael Grzeschik <mgr@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-19net/ipv6/addrconf: fix sysctl table indentationKonstantin Khlebnikov1-309/+307
Separated from previous patch for readability. Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-19net/ipv6/addrconf: simplify sysctl registrationKonstantin Khlebnikov2-27/+19
Struct ctl_table_header holds pointer to sysctl table which could be used for freeing it after unregistration. IPv4 sysctls already use that. Remove redundant NULL assignment: ndev allocated using kzalloc. This also saves some bytes: sysctl table could be shorter than DEVCONF_MAX+1 if some options are disable in config. Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-19net: Add helpers for 64-bit aligning netlink attributes.David S. Miller2-19/+42
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com> Suggested-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-19net: Align IFLA_STATS64 attributes properly on architectures that need it.David S. Miller2-0/+20
Since the nlattr header is 4 bytes in size, it can cause the netlink attribute payload to not be 8-byte aligned. This is particularly troublesome for IFLA_STATS64 which contains 64-bit statistic values. Solve this by creating a dummy IFLA_PAD attribute which has a payload which is zero bytes in size. When HAVE_EFFICIENT_UNALIGNED_ACCESS is false, we insert an IFLA_PAD attribute into the netlink response when necessary such that the IFLA_STATS64 payload will be properly aligned. With help and suggestions from Eric Dumazet. Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-19net: w5100: don't build spi driver without w5100Arnd Bergmann1-1/+1
The w5100-spi driver front-end only makes sense when the w5100 core driver is enabled, not for a configuration that only has w5300: drivers/net/built-in.o: In function `w5100_spi_remove': drivers/net/ethernet/wiznet/w5100-spi.c:277: undefined reference to `w5100_remove' drivers/net/built-in.o: In function `w5100_spi_probe': drivers/net/ethernet/wiznet/w5100-spi.c:272: undefined reference to `w5100_probe' drivers/net/built-in.o: In function `w5200_spi_init': drivers/net/ethernet/wiznet/w5100-spi.c:125: undefined reference to `w5100_ops_priv' drivers/net/built-in.o: In function `w5200_spi_readbulk': drivers/net/ethernet/wiznet/w5100-spi.c:125: undefined reference to `w5100_ops_priv' drivers/net/built-in.o: In function `w5200_spi_writebulk': drivers/net/ethernet/wiznet/w5100-spi.c:125: undefined reference to `w5100_ops_priv' drivers/net/built-in.o:(.data+0x3ed1c): undefined reference to `w5100_pm_ops' This adds an appropriate Kconfig dependency. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 630cf09751fe ("net: w5100: support SPI interface mode") Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-18bpf: avoid warning for wrong pointer castArnd Bergmann1-2/+2
Two new functions in bpf contain a cast from a 'u64' to a pointer. This works on 64-bit architectures but causes a warning on all 32-bit architectures: kernel/trace/bpf_trace.c: In function 'bpf_perf_event_output_tp': kernel/trace/bpf_trace.c:350:13: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] u64 ctx = *(long *)r1; This changes the cast to first convert the u64 argument into a uintptr_t, which is guaranteed to be the same size as a pointer. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 9940d67c93b5 ("bpf: support bpf_get_stackid() and bpf_perf_event_output() in tracepoint programs") Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-18of_mdio: make of_mdiobus_register_{device|phy}() *void*Sergei Shtylyov1-13/+8
The results of of_mdiobus_register_{device|phy}() are never checked, so we can make both these functions *void*... Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-18enic: set netdev->vlan_featuresGovindarajulu Varadarajan1-0/+1
Driver sets vlan_feature to netdev->features as hardware supports all of them on vlan interface. Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-18hv_netvsc: Implement support for VF drivers on Hyper-VKY Srinivasan4-26/+335
Support VF drivers on Hyper-V. On Hyper-V, each VF instance presented to the guest has an associated synthetic interface that shares the MAC address with the VF instance. Typically these are bonded together to support live migration. By default, the host delivers all the incoming packets on the synthetic interface. Once the VF is up, we need to explicitly switch the data path on the host to divert traffic onto the VF interface. Even after switching the data path, broadcast and multicast packets are always delivered on the synthetic interface and these will have to be injected back onto the VF interface (if VF is up). This patch implements the necessary support in netvsc to support Linux VF drivers. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-18fec: move to new ethtool api {get|set}_link_ksettingsPhilippe Reynes1-8/+8
The ethtool api {get|set}_settings is deprecated. We move the fec driver to new api {get|set}_link_ksettings. Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Acked-by: Fugang Duan <fugang.duan@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-18phy: add generic function to support ksetting supportPhilippe Reynes2-0/+85
The old ethtool api (get_setting and set_setting) has generic phy functions phy_ethtool_sset and phy_ethtool_gset. To supprt the new ethtool api (get_link_ksettings and set_link_ksettings), we add generic phy function phy_ethtool_ksettings_get and phy_ethtool_ksettings_set. Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-18net: ethtool: export conversion function between u32 and link modePhilippe Reynes2-9/+19
The function convert_legacy_u32_to_link_mode and convert_link_mode_to_legacy_u32 may be used outside of ethtool.c. We rename them to ethtool_convert_... and export them, so we could use them in others drivers and modules. Signed-off-by: Philippe Reynes <tremyfr@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-18tun: don't require serialization lock on txPaolo Abeni1-1/+1
The current tun_net_xmit() implementation don't need any external lock since it relies on rcu protection for the tun data structure and on socket queue lock for skb queuing. This patch set the NETIF_F_LLTX feature bit in the tun device, so that on xmit, in absence of qdisc, no serialization lock is acquired by the caller. The user space can remove the default tun qdisc with: tc qdisc replace dev <tun device name> root noqueue Signed-off-by: Paolo Abeni <pabeni@redhat.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Acked-by: Eric Dumazet <edumazet@google.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-18udp: fix if statement in SIOCINQ ioctlDan Carpenter1-6/+0
We deleted a line of code and accidentally made the "return put_user()" part of the if statement when it's supposed to be unconditional. Fixes: 9f9a45beaa96 ('udp: do not expect udp headers on ioctl SIOCINQ') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Eric Dumazet <edumazet@google.com> Acked-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-18rtnetlink: rtnl_fill_stats: avoid an unnecssary stats copyRoopa Prabhu1-15/+8
This patch passes netlink attr data ptr directly to dev_get_stats thus elimiating a stats copy. Suggested-by: David Miller <davem@davemloft.net> Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-17net: dsa: mv88e6xxx: remove switch ID from psVivien Didelot2-33/+0
ps->id is not needed anymore, so remove it as well as the related defined values. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-17net: dsa: mv88e6xxx: add number of db to infoVivien Didelot6-18/+19
Add the number of databases to the info structure. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-17net: dsa: mv88e6xxx: add number of ports to infoVivien Didelot6-56/+38
Drop the ps->num_ports variable in favor of a new member of the info structure. This removes the need to assign it at setup time. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-17net: dsa: mv88e6xxx: add family to infoVivien Didelot6-63/+38
Add an mv88e6xxx_family enum to the info structure for better family indentification. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-17net: dsa: mv88e6xxx: add switch infoVivien Didelot6-32/+93
Add a new switch info structure which is meant to store switch models static information, such as product number, name, number of ports, number of databases, etc. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-17net: dsa: mv88e6xxx: read switch ID in probeVivien Didelot1-27/+30
Read the switch ID only once, at probe time, to avoid multiple read accesses and MII bus checking. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-17net: dsa: mv88e6xxx: drop revision probingVivien Didelot5-42/+1
There is no point in having a special case for the revision when probing a switch model. The code gets cluttered with unnecessary defines, and leads to errors when code such as mv88e6131_setup compares PORT_SWITCH_ID_6131_B2 to ps->id which masks the revision. Drop every revision definition, and lookup only the product number. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-17net: dsa: mv88e6xxx: drop double ds assignmentVivien Didelot4-8/+0
Every driver assigns ps->ds even though it gets assigned in the shared mv88e6xxx_setup_common function. Kill redundancy. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-17net: dsa: constify probed nameVivien Didelot10-37/+39
Change the dsa_switch_driver.probe function to return a const char *. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16nfp: add async reconfiguration mechanismJakub Kicinski2-27/+157
Some callers of nfp_net_reconfig() are in atomic context so we used to busy wait for commands to complete. In worst case scenario that means locking up a core for up to 5 seconds when a command times out. Lets add a timer-based mechanism of asynchronously checking whether reconfiguration completed successfully for atomic callers to use. Non-atomic callers can now just sleep. The approach taken is quite simple because (1) synchronous reconfigurations always happen under RTNL (or before device is registered); (2) we can coalesce pending reconfigs. There is no need for request queues, timer which eventually takes a look at reconfiguration result to report errors is good enough. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16nfp: remove buggy RX buffer length validationJakub Kicinski1-12/+14
Meaning of data_len and meta_len RX WB descriptor fields is slightly confusing. Add a comment with a diagram clarifying the layout. Also remove the buffer length validation: (a) it's imprecise for static rx-offsets; (b) if firmware is buggy enough to DMA past the end of the buffer WARN_ON_ONCE() doesn't seem like a strong enough response. skb_put() will do the checking for us anyway. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16nfp: remove unused suspicious mask definesJakub Kicinski1-4/+0
NFP_NET_RXR_MASK sounds like a mask which could be used on NFP_NET_CFG_RXRS_ENABLE register but its value is quite strange. In fact there are no users of this define so let's just remove it. Same for TX rings. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16nfp: correct names of constants in commentsJakub Kicinski1-3/+3
Documentation in comments lacks CFG in some names. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16nfp: remove unnecessary staticJakub Kicinski1-1/+1
There is no reason for those local variables to be static. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16nfp: check the right pointer for errorsJakub Kicinski1-1/+1
Correct checking error condition on wrong pointer - copy/paste mistake most likely. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16openvswitch: Convert to using IFF_NO_QUEUEPhil Sutter1-2/+1
Cc: Pravin Shelar <pshelar@nicira.com> Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16staging: rtl8188eu: Convert to using IFF_NO_QUEUEPhil Sutter1-1/+1
Cc: Jakub Sitnicki <jsitnicki@gmail.com> Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16fjes: Update fjes driver version : 1.1Taku Izumi1-1/+1
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16fjes: Introduce spinlock for rx_statusTaku Izumi3-9/+72
This patch introduces spinlock of rx_status for proper excusive control. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16fjes: Enhance changing MTU related workTaku Izumi3-11/+58
This patch enhances the fjes_change_mtu() method by introducing new flag named FJES_RX_MTU_CHANGING_DONE in rx_status. At the same time, default MTU value is changed into 65510 bytes. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16fjes: fix bitwise check bug in fjes_raise_intr_rxdata_taskTaku Izumi1-1/+2
In fjes_raise_intr_rxdata_task(), there's a bug of bitwise check because of missing "& FJES_RX_POLL_WORK". This patch fixes this bug. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16fjes: fix incorrect statistics information in fjes_xmit_frame()Taku Izumi1-7/+7
There are bugs of acounting statistics in fjes_xmit_frame(). Accounting self stats is wrong. accounting stats of other EPs to be transmitted is right. This patch fixes this bug. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16fjes: optimize timeout valueTaku Izumi1-3/+3
This patch optimizes the following timeout value. - FJES_DEVICE_RESET_TIMEOUT - FJES_COMMAND_REQ_TIMEOUT - FJES_COMMAND_REQ_BUFF_TIMEOUT Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16stmmac: socfpga: remove extra call to socfpga_dwmac_setupDinh Nguyen1-6/+0
In the socfpga_dwmac_probe function, we have a call to socfpga_dwmac_setup, which is already called from socfpga_dwmac_init later in the probe function. Remove this extra call to socfpga_dwmac_setup. Also we should not be calling socfpga_dwmac_setup() directly without wrapping it around the proper reset assert/deasserts. That is because the socfpga_dwmac_setup() is setting up PHY modes in the system manager, and it is requires the EMAC's to be in reset during the PHY setup. Reported-by: Matthew Gerlach <mgerlach@opensource.altera.com> Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16dsa: mv88e6xxx: Kill the REG_READ and REG_WRITE macrosAndrew Lunn6-123/+224
These macros hide a ds variable and a return statement on error, which can lead to locking issues. Kill them off. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16netdev_features: Add NETIF_F_TSO_MANGLEID to NETIF_F_ALL_TSOAlexander Duyck1-1/+2
I realized that when I added NETIF_F_TSO_MANGLEID as a TSO type I forgot to add it to NETIF_F_ALL_TSO. This patch corrects that so the flag will be included correctly. The result should be minor as it was only used by a few drivers and in a few specific cases such as when NETIF_F_SG was not supported on a device so the TSO flags were cleared. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16ip6gre: Add support for GSOAlexander Duyck1-23/+33
This patch adds code borrowed from bits and pieces of other protocols to the IPv6 GRE path so that we can support GSO over IPv6 based GRE tunnels. By adding this support we are able to significantly improve the throughput for GRE tunnels as we are able to make use of GSO. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16GRE: Add support for GRO/GSO of IPv6 GRE trafficAlexander Duyck1-1/+13
Since GRE doesn't really care about L3 protocol we can support IPv4 and IPv6 using the same offloads. With that being the case we can add a call to register the offloads for IPv6 as a part of our GRE offload initialization. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16ip6gre: Add support for basic offloads offloads excluding GSOAlexander Duyck1-2/+21
This patch adds support for the basic offloads we support on most devices. Specifically with this patch set we can support checksum offload, basic scatter-gather, and highdma. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16ip6gretap: Fix MTU to allow for Ethernet headerAlexander Duyck1-0/+2
When we were creating an ip6gretap interface the MTU was about 6 bytes short of what was needed. It turns out we were not taking the Ethernet header into account and as a result we were eating into the 8 bytes reserved for the encap limit. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16ip_tunnel_core: iptunnel_handle_offloads returns int and doesn't free skbAlexander Duyck10-72/+47
This patch updates the IP tunnel core function iptunnel_handle_offloads so that we return an int and do not free the skb inside the function. This actually allows us to clean up several paths in several tunnels so that we can free the skb at one point in the path without having to have a secondary path if we are supporting tunnel offloads. In addition it should resolve some double-free issues I have found in the tunnels paths as I believe it is possible for us to end up triggering such an event in the case of fou or gue. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16net: w5100: support W5200Akinobu Mita4-48/+289
This adds support for W5200 chip. W5100 and W5200 have similar memory map although some of their offsets are different. The register access sequences between them are different but w5100 driver has abstraction layer for difference bus interface modes so it is easy to add W5200 support to w5100 and w5100-spi drivers. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Mike Sinkovsky <msink@permonline.ru> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16net: w5100: support SPI interface modeAkinobu Mita3-0/+151
This adds new w5100-spi driver which shares the bus interface independent code with existing w5100 driver. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Mike Sinkovsky <msink@permonline.ru> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-16net: w5100: enable to support sleepable register access interfaceAkinobu Mita2-38/+153
SPI transfer routines are callable only from contexts that can sleep. This adds ability to tell the core driver that the interface mode cannot access w5100 register on atomic contexts. In this case, workqueue and threaded irq are required. This also corrects timeout period waiting for command register to be automatically cleared because the latency of the register access with SPI transfer can be interfered by other contexts. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Mike Sinkovsky <msink@permonline.ru> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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