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2019-10-01net: mscc: ocelot: add missing of_node_put after calling of_get_child_by_nameWen Yang
of_node_put needs to be called when the device node which is got from of_get_child_by_name finished using. In both cases of success and failure, we need to release 'ports', so clean up the code using goto. fixes: a556c76adc05 ("net: mscc: Add initial Ocelot switch support") Signed-off-by: Wen Yang <wenyang@linux.alibaba.com> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Microchip Linux Driver Support <UNGLinuxDriver@microchip.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-01netfilter: drop bridge nf reset from nf_resetFlorian Westphal
commit 174e23810cd31 ("sk_buff: drop all skb extensions on free and skb scrubbing") made napi recycle always drop skb extensions. The additional skb_ext_del() that is performed via nf_reset on napi skb recycle is not needed anymore. Most nf_reset() calls in the stack are there so queued skb won't block 'rmmod nf_conntrack' indefinitely. This removes the skb_ext_del from nf_reset, and renames it to a more fitting nf_reset_ct(). In a few selected places, add a call to skb_ext_reset to make sure that no active extensions remain. I am submitting this for "net", because we're still early in the release cycle. The patch applies to net-next too, but I think the rename causes needless divergence between those trees. Suggested-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2019-10-01ionic: select CONFIG_NET_DEVLINKArnd Bergmann
When no other driver selects the devlink library code, ionic produces a link failure: drivers/net/ethernet/pensando/ionic/ionic_devlink.o: In function `ionic_devlink_alloc': ionic_devlink.c:(.text+0xd): undefined reference to `devlink_alloc' drivers/net/ethernet/pensando/ionic/ionic_devlink.o: In function `ionic_devlink_register': ionic_devlink.c:(.text+0x71): undefined reference to `devlink_register' Add the same 'select' statement that the other drivers use here. Fixes: fbfb8031533c ("ionic: Add hardware init and device commands") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-10-01net: socionext: netsec: always grab descriptor lockLorenzo Bianconi
Always acquire tx descriptor spinlock even if a xdp program is not loaded on the netsec device since ndo_xdp_xmit can run concurrently with netsec_netdev_start_xmit and netsec_clean_tx_dring. This can happen loading a xdp program on a different device (e.g virtio-net) and xdp_do_redirect_map/xdp_do_redirect_slow can redirect to netsec even if we do not have a xdp program on it. Fixes: ba2b232108d3 ("net: netsec: add XDP support") Tested-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-30net: dsa: sja1105: Prevent leaking memoryNavid Emamdoost
In sja1105_static_config_upload, in two cases memory is leaked: when static_config_buf_prepare_for_upload fails and when sja1105_inhibit_tx fails. In both cases config_buf should be released. Fixes: 8aa9ebccae87 ("net: dsa: Introduce driver for NXP SJA1105 5-port L2 switch") Fixes: 1a4c69406cc1 ("net: dsa: sja1105: Prevent PHY jabbering during switch reset") Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-30net: dsa: sja1105: Ensure PTP time for rxtstamp reconstruction is not in the ↵Vladimir Oltean
past Sometimes the PTP synchronization on the switch 'jumps': ptp4l[11241.155]: rms 8 max 16 freq -21732 +/- 11 delay 742 +/- 0 ptp4l[11243.157]: rms 7 max 17 freq -21731 +/- 10 delay 744 +/- 0 ptp4l[11245.160]: rms 33592410 max 134217731 freq +192422 +/- 8530253 delay 743 +/- 0 ptp4l[11247.163]: rms 811631 max 964131 freq +10326 +/- 557785 delay 743 +/- 0 ptp4l[11249.166]: rms 261936 max 533876 freq -304323 +/- 126371 delay 744 +/- 0 ptp4l[11251.169]: rms 48700 max 57740 freq -20218 +/- 30532 delay 744 +/- 0 ptp4l[11253.171]: rms 14570 max 30163 freq -5568 +/- 7563 delay 742 +/- 0 ptp4l[11255.174]: rms 2914 max 3440 freq -22001 +/- 1667 delay 744 +/- 1 ptp4l[11257.177]: rms 811 max 1710 freq -22653 +/- 451 delay 744 +/- 1 ptp4l[11259.180]: rms 177 max 218 freq -21695 +/- 89 delay 741 +/- 0 ptp4l[11261.182]: rms 45 max 92 freq -21677 +/- 32 delay 742 +/- 0 ptp4l[11263.186]: rms 14 max 32 freq -21733 +/- 11 delay 742 +/- 0 ptp4l[11265.188]: rms 9 max 14 freq -21725 +/- 12 delay 742 +/- 0 ptp4l[11267.191]: rms 9 max 16 freq -21727 +/- 13 delay 742 +/- 0 ptp4l[11269.194]: rms 6 max 15 freq -21726 +/- 9 delay 743 +/- 0 ptp4l[11271.197]: rms 8 max 15 freq -21728 +/- 11 delay 743 +/- 0 ptp4l[11273.200]: rms 6 max 12 freq -21727 +/- 8 delay 743 +/- 0 ptp4l[11275.202]: rms 9 max 17 freq -21720 +/- 11 delay 742 +/- 0 ptp4l[11277.205]: rms 9 max 18 freq -21725 +/- 12 delay 742 +/- 0 Background: the switch only offers partial RX timestamps (24 bits) and it is up to the driver to read the PTP clock to fill those timestamps up to 64 bits. But the PTP clock readout needs to happen quickly enough (in 0.135 seconds, in fact), otherwise the PTP clock will wrap around 24 bits, condition which cannot be detected. Looking at the 'max 134217731' value on output line 3, one can see that in hex it is 0x8000003. Because the PTP clock resolution is 8 ns, that means 0x1000000 in ticks, which is exactly 2^24. So indeed this is a PTP clock wraparound, but the reason might be surprising. What is going on is that sja1105_tstamp_reconstruct(priv, now, ts) expects a "now" time that is later than the "ts" was snapshotted at. This, of course, is obvious: we read the PTP time _after_ the partial RX timestamp was received. However, the workqueue is processing frames from a skb queue and reuses the same PTP time, read once at the beginning. Normally the skb queue only contains one frame and all goes well. But when the skb queue contains two frames, the second frame that gets dequeued might have been partially timestamped by the RX MAC _after_ we had read our PTP time initially. The code was originally like that due to concerns that SPI access for PTP time readout is a slow process, and we are time-constrained anyway (aka: premature optimization). But some timing analysis reveals that the time spent until the RX timestamp is completely reconstructed is 1 order of magnitude lower than the 0.135 s deadline even under worst-case conditions. So we can afford to read the PTP time for each frame in the RX timestamping queue, which of course ensures that the full PTP time is in the partial timestamp's future. Fixes: f3097be21bf1 ("net: dsa: sja1105: Add a state machine for RX timestamping") Signed-off-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-30Merge tag 'ieee802154-for-davem-2019-09-28' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan Stefan Schmidt says: ==================== pull-request: ieee802154 for net 2019-09-28 An update from ieee802154 for your *net* tree. Three driver fixes. Navid Emamdoost fixed a memory leak on an error path in the ca8210 driver, Johan Hovold fixed a use-after-free found by syzbot in the atusb driver and Christophe JAILLET makes sure __skb_put_data is used instead of memcpy in the mcr20a driver I switched from branches to tags here to be pulled from. So far not annotated and not signed. Once I fixed my scripts it should contain this messages as annotations. If you want it signed as well just tell me. If there are any problems let me know. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-30net: dsa: qca8k: Use up to 7 ports for all operationsMichal Vokáč
The QCA8K family supports up to 7 ports. So use the existing QCA8K_NUM_PORTS define to allocate the switch structure and limit all operations with the switch ports. This was not an issue until commit 0394a63acfe2 ("net: dsa: enable and disable all ports") disabled all unused ports. Since the unused ports 7-11 are outside of the correct register range on this switch some registers were rewritten with invalid content. Fixes: 6b93fb46480a ("net-next: dsa: add new driver for qca8xxx family") Fixes: a0c02161ecfc ("net: dsa: variable number of ports") Fixes: 0394a63acfe2 ("net: dsa: enable and disable all ports") Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-28Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds
Pull networking fixes from David Miller: 1) Sanity check URB networking device parameters to avoid divide by zero, from Oliver Neukum. 2) Disable global multicast filter in NCSI, otherwise LLDP and IPV6 don't work properly. Longer term this needs a better fix tho. From Vijay Khemka. 3) Small fixes to selftests (use ping when ping6 is not present, etc.) from David Ahern. 4) Bring back rt_uses_gateway member of struct rtable, it's semantics were not well understood and trying to remove it broke things. From David Ahern. 5) Move usbnet snaity checking, ignore endpoints with invalid wMaxPacketSize. From Bjørn Mork. 6) Missing Kconfig deps for sja1105 driver, from Mao Wenan. 7) Various small fixes to the mlx5 DR steering code, from Alaa Hleihel, Alex Vesker, and Yevgeny Kliteynik 8) Missing CAP_NET_RAW checks in various places, from Ori Nimron. 9) Fix crash when removing sch_cbs entry while offloading is enabled, from Vinicius Costa Gomes. 10) Signedness bug fixes, generally in looking at the result given by of_get_phy_mode() and friends. From Dan Crapenter. 11) Disable preemption around BPF_PROG_RUN() calls, from Eric Dumazet. 12) Don't create VRF ipv6 rules if ipv6 is disabled, from David Ahern. 13) Fix quantization code in tcp_bbr, from Kevin Yang. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (127 commits) net: tap: clean up an indentation issue nfp: abm: fix memory leak in nfp_abm_u32_knode_replace tcp: better handle TCP_USER_TIMEOUT in SYN_SENT state sk_buff: drop all skb extensions on free and skb scrubbing tcp_bbr: fix quantization code to not raise cwnd if not probing bandwidth mlxsw: spectrum_flower: Fail in case user specifies multiple mirror actions Documentation: Clarify trap's description mlxsw: spectrum: Clear VLAN filters during port initialization net: ena: clean up indentation issue NFC: st95hf: clean up indentation issue net: phy: micrel: add Asym Pause workaround for KSZ9021 net: socionext: ave: Avoid using netdev_err() before calling register_netdev() ptp: correctly disable flags on old ioctls lib: dimlib: fix help text typos net: dsa: microchip: Always set regmap stride to 1 nfp: flower: fix memory leak in nfp_flower_spawn_vnic_reprs nfp: flower: prevent memory leak in nfp_flower_spawn_phy_reprs net/sched: Set default of CONFIG_NET_TC_SKB_EXT to N vrf: Do not attempt to create IPv6 mcast rule if IPv6 is disabled net: sched: sch_sfb: don't call qdisc_put() while holding tree lock ...
2019-09-27ieee802154: ca8210: prevent memory leakNavid Emamdoost
In ca8210_probe the allocated pdata needs to be assigned to spi_device->dev.platform_data before calling ca8210_get_platform_data. Othrwise when ca8210_get_platform_data fails pdata cannot be released. Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> Link: https://lore.kernel.org/r/20190917224713.26371-1-navid.emamdoost@gmail.com Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
2019-09-27net: tap: clean up an indentation issueColin Ian King
There is a statement that is indented too deeply, remove the extraneous tab. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27nfp: abm: fix memory leak in nfp_abm_u32_knode_replaceNavid Emamdoost
In nfp_abm_u32_knode_replace if the allocation for match fails it should go to the error handling instead of returning. Updated other gotos to have correct errno returned, too. Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27mlxsw: spectrum_flower: Fail in case user specifies multiple mirror actionsDanielle Ratson
The ASIC can only mirror a packet to one port, but when user is trying to set more than one mirror action, it doesn't fail. Add a check if more than one mirror action was specified per rule and if so, fail for not being supported. Fixes: d0d13c1858a11 ("mlxsw: spectrum_acl: Add support for mirror action") Signed-off-by: Danielle Ratson <danieller@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27mlxsw: spectrum: Clear VLAN filters during port initializationIdo Schimmel
When a port is created, its VLAN filters are not cleared by the firmware. This causes tagged packets to be later dropped by the ingress STP filters, which default to DISCARD state. The above did not matter much until commit b5ce611fd96e ("mlxsw: spectrum: Add devlink-trap support") where we exposed the drop reason to users. Without this patch, the drop reason users will see is not consistent. If a port is enslaved to a VLAN-aware bridge and a packet with an invalid VLAN tries to ingress the bridge, it will be dropped due to ingress STP filter. If the VLAN is later enabled and then disabled, the packet will be dropped by the ingress VLAN filter despite the above being a seemingly NOP operation. Fix this by clearing all the VLAN filters during port initialization. Adjust the test accordingly. Fixes: b5ce611fd96e ("mlxsw: spectrum: Add devlink-trap support") Reported-by: Alex Kushnarov <alexanderk@mellanox.com> Tested-by: Alex Kushnarov <alexanderk@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27net: ena: clean up indentation issueColin Ian King
There memset is indented incorrectly, remove the extraneous tabs. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27net: phy: micrel: add Asym Pause workaround for KSZ9021Hans Andersson
The Micrel KSZ9031 PHY may fail to establish a link when the Asymmetric Pause capability is set. This issue is described in a Silicon Errata (DS80000691D or DS80000692D), which advises to always disable the capability. Micrel KSZ9021 has no errata, but has the same issue with Asymmetric Pause. This patch apply the same workaround as the one for KSZ9031. Fixes: 3aed3e2a143c ("net: phy: micrel: add Asym Pause workaround") Signed-off-by: Hans Andersson <hans.andersson@cellavision.se> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27net: socionext: ave: Avoid using netdev_err() before calling register_netdev()Kunihiko Hayashi
Until calling register_netdev(), ndev->dev_name isn't specified, and netdev_err() displays "(unnamed net_device)". ave 65000000.ethernet (unnamed net_device) (uninitialized): invalid phy-mode setting ave: probe of 65000000.ethernet failed with error -22 This replaces netdev_err() with dev_err() before calling register_netdev(). Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27net: dsa: microchip: Always set regmap stride to 1Marek Vasut
The regmap stride is set to 1 for regmap describing 8bit registers already. However, for 16/32/64bit registers, the stride is 2/4/8 respectively. This is not correct, as the switch protocol supports unaligned register reads and writes and the KSZ87xx even uses such unaligned register accesses to read e.g. MIB counter. This patch fixes MIB counter access on KSZ87xx. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Andrew Lunn <andrew@lunn.ch> Cc: David S. Miller <davem@davemloft.net> Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: George McCollister <george.mccollister@gmail.com> Cc: Tristram Ha <Tristram.Ha@microchip.com> Cc: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Cc: Woojung Huh <woojung.huh@microchip.com> Fixes: 46558d601cb6 ("net: dsa: microchip: Initial SPI regmap support") Fixes: 255b59ad0db2 ("net: dsa: microchip: Factor out regmap config generation into common header") Reviewed-by: George McCollister <george.mccollister@gmail.com> Tested-by: George McCollister <george.mccollister@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27nfp: flower: fix memory leak in nfp_flower_spawn_vnic_reprsNavid Emamdoost
In nfp_flower_spawn_vnic_reprs in the loop if initialization or the allocations fail memory is leaked. Appropriate releases are added. Fixes: b94524529741 ("nfp: flower: add per repr private data for LAG offload") Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27nfp: flower: prevent memory leak in nfp_flower_spawn_phy_reprsNavid Emamdoost
In nfp_flower_spawn_phy_reprs, in the for loop over eth_tbl if any of intermediate allocations or initializations fail memory is leaked. requiered releases are added. Fixes: b94524529741 ("nfp: flower: add per repr private data for LAG offload") Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27vrf: Do not attempt to create IPv6 mcast rule if IPv6 is disabledDavid Ahern
A user reported that vrf create fails when IPv6 is disabled at boot using 'ipv6.disable=1': https://bugzilla.kernel.org/show_bug.cgi?id=204903 The failure is adding fib rules at create time. Add RTNL_FAMILY_IP6MR to the check in vrf_fib_rule if ipv6_mod_enabled is disabled. Fixes: e4a38c0c4b27 ("ipv6: add vrf table handling code for ipv6 mcast") Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Patrick Ruddy <pruddy@vyatta.att-mail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27net: dsa: qca8k: Fix port enable for CPU portAndrew Lunn
The CPU port does not have a PHY connected to it. So calling phy_support_asym_pause() results in an Opps. As with other DSA drivers, add a guard that the port is a user port. Reported-by: Michal Vokáč <michal.vokac@ysoft.com> Fixes: 0394a63acfe2 ("net: dsa: enable and disable all ports") Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Michal Vokáč <michal.vokac@ysoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27net: ethernet: stmmac: Fix signedness bug in ipq806x_gmac_of_parse()Dan Carpenter
The "gmac->phy_mode" variable is an enum and in this context GCC will treat it as an unsigned int so the error handling will never be triggered. Fixes: b1c17215d718 ("stmmac: add ipq806x glue layer") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27net: nixge: Fix a signedness bug in nixge_probe()Dan Carpenter
The "priv->phy_mode" is an enum and in this context GCC will treat it as an unsigned int so it can never be less than zero. Fixes: 492caffa8a1a ("net: ethernet: nixge: Add support for National Instruments XGE netdev") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27net: axienet: fix a signedness bug in probeDan Carpenter
The "lp->phy_mode" is an enum but in this context GCC treats it as an unsigned int so the error handling is never triggered. Fixes: ee06b1728b95 ("net: axienet: add support for standard phy-mode binding") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27net: stmmac: dwmac-meson8b: Fix signedness bug in probeDan Carpenter
The "dwmac->phy_mode" is an enum and in this context GCC treats it as an unsigned int so the error handling is never triggered. Fixes: 566e82516253 ("net: stmmac: add a glue driver for the Amlogic Meson 8b / GXBB DWMAC") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27net: socionext: Fix a signedness bug in ave_probe()Dan Carpenter
The "phy_mode" variable is an enum and in this context GCC treats it as an unsigned int so the error handling is never triggered. Fixes: 4c270b55a5af ("net: ethernet: socionext: add AVE ethernet driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27enetc: Fix a signedness bug in enetc_of_get_phy()Dan Carpenter
The "priv->if_mode" is type phy_interface_t which is an enum. In this context GCC will treat the enum as an unsigned int so this error handling is never triggered. Fixes: d4fd0404c1c9 ("enetc: Introduce basic PF and VF ENETC ethernet drivers") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27net: netsec: Fix signedness bug in netsec_probe()Dan Carpenter
The "priv->phy_interface" variable is an enum and in this context GCC will treat it as an unsigned int so the error handling is never triggered. Fixes: 533dd11a12f6 ("net: socionext: Add Synquacer NetSec driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27net: broadcom/bcmsysport: Fix signedness in bcm_sysport_probe()Dan Carpenter
The "priv->phy_interface" variable is an enum and in this context GCC will treat it as unsigned so the error handling will never be triggered. Fixes: 80105befdb4b ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27net: hisilicon: Fix signedness bug in hix5hd2_dev_probe()Dan Carpenter
The "priv->phy_mode" variable is an enum and in this context GCC will treat it as unsigned to the error handling will never trigger. Fixes: 57c5bc9ad7d7 ("net: hisilicon: add hix5hd2 mac driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27cxgb4: Signedness bug in init_one()Dan Carpenter
The "chip" variable is an enum, and it's treated as unsigned int by GCC in this context so the error handling isn't triggered. Fixes: e8d452923ae6 ("cxgb4: clean up init_one") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-27net: aquantia: Fix aq_vec_isr_legacy() return valueDan Carpenter
The irqreturn_t type is an enum or an unsigned int in GCC. That creates to problems because it can't detect if the self->aq_hw_ops->hw_irq_read() call fails and at the end the function always returns IRQ_HANDLED. drivers/net/ethernet/aquantia/atlantic/aq_vec.c:316 aq_vec_isr_legacy() warn: unsigned 'err' is never less than zero. drivers/net/ethernet/aquantia/atlantic/aq_vec.c:329 aq_vec_isr_legacy() warn: always true condition '(err >= 0) => (0-u32max >= 0)' Fixes: 970a2e9864b0 ("net: ethernet: aquantia: Vector operations") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Igor Russkikh <igor.russkikh@aquantia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-26wimax/i2400m: remove unlikely() from WARN*() conditionDenis Efremov
"unlikely(WARN_ON(x))" is excessive. WARN_ON() already uses unlikely() internally. Link: http://lkml.kernel.org/r/20190829165025.15750-6-efremov@linux.com Signed-off-by: Denis Efremov <efremov@linux.com> Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-09-26Merge tag 'wireless-drivers-for-davem-2019-09-26' of ↵David S. Miller
https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers Kalle Valo says: ==================== wireless-drivers fixes for 5.4 First set of fixes for 5.4 sent during the merge window. Most are regressions fixes but the mt7615 problem has been since it was merged. iwlwifi * fix a build regression related CONFIG_THERMAL * avoid using GEO_TX_POWER_LIMIT command on certain firmware versions rtw88 * fixes for skb leaks zd1211rw * fix a compiler warning on 32 bit mt76 * fix the firmware paths for mt7615 to match with linux-firmware wil6210 * fix use of skb after free ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-26net: stmmac: Fix page pool sizeThierry Reding
The size of individual pages in the page pool in given by an order. The order is the binary logarithm of the number of pages that make up one of the pages in the pool. However, the driver currently passes the number of pages rather than the order, so it ends up wasting quite a bit of memory. Fix this by taking the binary logarithm and passing that in the order field. Fixes: 2af6106ae949 ("net: stmmac: Introducing support for Page Pool") Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-26macsec: drop skb sk before calling gro_cells_receiveXin Long
Fei Liu reported a crash when doing netperf on a topo of macsec dev over veth: [ 448.919128] refcount_t: underflow; use-after-free. [ 449.090460] Call trace: [ 449.092895] refcount_sub_and_test+0xb4/0xc0 [ 449.097155] tcp_wfree+0x2c/0x150 [ 449.100460] ip_rcv+0x1d4/0x3a8 [ 449.103591] __netif_receive_skb_core+0x554/0xae0 [ 449.108282] __netif_receive_skb+0x28/0x78 [ 449.112366] netif_receive_skb_internal+0x54/0x100 [ 449.117144] napi_gro_complete+0x70/0xc0 [ 449.121054] napi_gro_flush+0x6c/0x90 [ 449.124703] napi_complete_done+0x50/0x130 [ 449.128788] gro_cell_poll+0x8c/0xa8 [ 449.132351] net_rx_action+0x16c/0x3f8 [ 449.136088] __do_softirq+0x128/0x320 The issue was caused by skb's true_size changed without its sk's sk_wmem_alloc increased in tcp/skb_gro_receive(). Later when the skb is being freed and the skb's truesize is subtracted from its sk's sk_wmem_alloc in tcp_wfree(), underflow occurs. macsec is calling gro_cells_receive() to receive a packet, which actually requires skb->sk to be NULL. However when macsec dev is over veth, it's possible the skb->sk is still set if the skb was not unshared or expanded from the peer veth. ip_rcv() is calling skb_orphan() to drop the skb's sk for tproxy, but it is too late for macsec's calling gro_cells_receive(). So fix it by dropping the skb's sk earlier on rx path of macsec. Fixes: 5491e7c6b1a9 ("macsec: enable GRO and RPS on macsec devices") Reported-by: Xiumei Mu <xmu@redhat.com> Reported-by: Fei Liu <feliu@redhat.com> Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-26Merge tag 'mlx5-fixes-2019-09-24' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== Mellanox, mlx5 fixes 2019-09-24 This series introduces some fixes to mlx5 driver. For more information please see tag log below. Please pull and let me know if there is any problem. For -stable v4.20: ('net/mlx5e: Fix traffic duplication in ethtool steering') For -stable v4.19: ('net/mlx5: Add device ID of upcoming BlueField-2') For -stable v5.3: ('net/mlx5e: Fix matching on tunnel addresses type') ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-26drivers: net: Fix Kconfig indentationKrzysztof Kozlowski
Adjust indentation from spaces to tab (+optional two spaces) as in coding style with command like: $ sed -e 's/^ /\t/' -i */Kconfig Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Kalle Valo <kvalo@codeaurora.org> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-25net: macb: Remove dead codeShubhrajyoti Datta
macb_64b_desc is always called when HW_DMA_CAP_64B is defined. So the return NULL can never be reached. Remove the dead code. Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-25net: stmmac: selftests: Flow Control test can also run with ASYM PauseJose Abreu
The Flow Control selftest is also available with ASYM Pause. Lets add this check to the test and fix eventual false positive failures. Fixes: 091810dbded9 ("net: stmmac: Introduce selftests support") Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-25gianfar: Make reset_gfar staticYueHaibing
Fix sparse warning: drivers/net/ethernet/freescale/gianfar.c:2070:6: warning: symbol 'reset_gfar' was not declared. Should it be static? Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-25ppp: Fix memory leak in ppp_writeTakeshi Misawa
When ppp is closing, __ppp_xmit_process() failed to enqueue skb and skb allocated in ppp_write() is leaked. syzbot reported : BUG: memory leak unreferenced object 0xffff88812a17bc00 (size 224): comm "syz-executor673", pid 6952, jiffies 4294942888 (age 13.040s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000d110fff9>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] [<00000000d110fff9>] slab_post_alloc_hook mm/slab.h:522 [inline] [<00000000d110fff9>] slab_alloc_node mm/slab.c:3262 [inline] [<00000000d110fff9>] kmem_cache_alloc_node+0x163/0x2f0 mm/slab.c:3574 [<000000002d616113>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:197 [<000000000167fc45>] alloc_skb include/linux/skbuff.h:1055 [inline] [<000000000167fc45>] ppp_write+0x48/0x120 drivers/net/ppp/ppp_generic.c:502 [<000000009ab42c0b>] __vfs_write+0x43/0xa0 fs/read_write.c:494 [<00000000086b2e22>] vfs_write fs/read_write.c:558 [inline] [<00000000086b2e22>] vfs_write+0xee/0x210 fs/read_write.c:542 [<00000000a2b70ef9>] ksys_write+0x7c/0x130 fs/read_write.c:611 [<00000000ce5e0fdd>] __do_sys_write fs/read_write.c:623 [inline] [<00000000ce5e0fdd>] __se_sys_write fs/read_write.c:620 [inline] [<00000000ce5e0fdd>] __x64_sys_write+0x1e/0x30 fs/read_write.c:620 [<00000000d9d7b370>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:296 [<0000000006e6d506>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Fix this by freeing skb, if ppp is closing. Fixes: 6d066734e9f0 ("ppp: avoid loop in xmit recursion detection code") Reported-and-tested-by: syzbot+d9c8bf24e56416d7ce2c@syzkaller.appspotmail.com Signed-off-by: Takeshi Misawa <jeliantsurux@gmail.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Tested-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-25net/ibmvnic: prevent more than one thread from running in resetJuliet Kim
The current code allows more than one thread to run in reset. This can corrupt struct adapter data. Check adapter->resetting before performing a reset, if there is another reset running delay (100 msec) before trying again. Signed-off-by: Juliet Kim <julietk@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-25net/ibmvnic: unlock rtnl_lock in reset so linkwatch_event can runJuliet Kim
Commit a5681e20b541 ("net/ibmnvic: Fix deadlock problem in reset") made the change to hold the RTNL lock during a reset to avoid deadlock but linkwatch_event is fired during the reset and needs the RTNL lock. That keeps linkwatch_event process from proceeding until the reset is complete. The reset process cannot tolerate the linkwatch_event processing after reset completes, so release the RTNL lock during the process to allow a chance for linkwatch_event to run during reset. This does not guarantee that the linkwatch_event will be processed as soon as link state changes, but is an improvement over the current code where linkwatch_event processing is always delayed, which prevents transmissions on the device from being deactivated leading transmit watchdog timer to time-out. Release the RTNL lock before link state change and re-acquire after the link state change to allow linkwatch_event to grab the RTNL lock and run during the reset. Fixes: a5681e20b541 ("net/ibmnvic: Fix deadlock problem in reset") Signed-off-by: Juliet Kim <julietk@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-25ieee802154: mcr20a: simplify a bit 'mcr20a_handle_rx_read_buf_complete()'Christophe JAILLET
Use a 'skb_put_data()' variant instead of rewritting it. The __skb_put_data variant is safe here. It is obvious that the skb can not overflow. It has just been allocated a few lines above with the same 'len'. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Xue Liu <liuxuenetmail@gmail.com> Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
2019-09-25wil6210: use after free in wil_netif_rx_any()Dan Carpenter
The debug code dereferences "skb" to print "skb->len" so we have to print the message before we free "skb". Fixes: f99fe49ff372 ("wil6210: add wil_netif_rx() helper function") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-09-24skge: fix checksum byte orderStephen Hemminger
Running old skge driver on PowerPC causes checksum errors because hardware reported 1's complement checksum is in little-endian byte order. Reported-by: Benoit <benoit.sansoni@gmail.com> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-24arcnet: provide a buffer big enough to actually receive packetsUwe Kleine-König
struct archdr is only big enough to hold the header of various types of arcnet packets. So to provide enough space to hold the data read from hardware provide a buffer large enough to hold a packet with maximal size. The problem was noticed by the stack protector which makes the kernel oops. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-09-24iwlwifi: fw: don't send GEO_TX_POWER_LIMIT command to FW version 36Luca Coelho
The intention was to have the GEO_TX_POWER_LIMIT command in FW version 36 as well, but not all 8000 family got this feature enabled. The 8000 family is the only one using version 36, so skip this version entirely. If we try to send this command to the firmwares that do not support it, we get a BAD_COMMAND response from the firmware. This fixes https://bugzilla.kernel.org/show_bug.cgi?id=204151. Cc: stable@vger.kernel.org # 4.19+ Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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