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2020-12-23ibmvnic: continue fatal error reset after passive initLijun Pan1-2/+1
Commit f9c6cea0b385 ("ibmvnic: Skip fatal error reset after passive init") says "If the passive CRQ initialization occurs before the FATAL reset task is processed, the FATAL error reset task would try to access a CRQ message queue that was freed, causing an oops. The problem may be most likely to occur during DLPAR add vNIC with a non-default MTU, because the DLPAR process will automatically issue a change MTU request. Fix this by not processing fatal error reset if CRQ is passively initialized after client-driven CRQ initialization fails." The original commit skips a specific reset condition, but that does not fix the problem it claims to fix, and misses a reset condition. The effective fix is commit 0e435befaea4 ("ibmvnic: fix NULL pointer dereference in ibmvic_reset_crq") and commit a0faaa27c716 ("ibmvnic: fix NULL pointer dereference in reset_sub_crq_queues"). With above two fixes, there are no more crashes seen as described even without the original commit, so I would like to revert the original commit. Fixes: f9c6cea0b385 ("ibmvnic: Skip fatal error reset after passive init") Signed-off-by: Lijun Pan <ljp@linux.ibm.com> Link: https://lore.kernel.org/r/20201223204904.12677-1-ljp@linux.ibm.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-23net: ethernet: Fix memleak in ethoc_probeDinghao Liu1-1/+2
When mdiobus_register() fails, priv->mdio allocated by mdiobus_alloc() has not been freed, which leads to memleak. Fixes: e7f4dc3536a4 ("mdio: Move allocation of interrupts into core") Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20201223110615.31389-1-dinghao.liu@zju.edu.cn Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-23net/ncsi: Use real net-device for response handlerJohn Wang1-1/+1
When aggregating ncsi interfaces and dedicated interfaces to bond interfaces, the ncsi response handler will use the wrong net device to find ncsi_dev, so that the ncsi interface will not work properly. Here, we use the original net device to fix it. Fixes: 138635cc27c9 ("net/ncsi: NCSI response packet handler") Signed-off-by: John Wang <wangzhiqiang.bj@bytedance.com> Link: https://lore.kernel.org/r/20201223055523.2069-1-wangzhiqiang.bj@bytedance.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-23net: dcb: Validate netlink message in DCB handlerPetr Machata1-0/+2
DCB uses the same handler function for both RTM_GETDCB and RTM_SETDCB messages. dcb_doit() bounces RTM_SETDCB mesasges if the user does not have the CAP_NET_ADMIN capability. However, the operation to be performed is not decided from the DCB message type, but from the DCB command. Thus DCB_CMD_*_GET commands are used for reading DCB objects, the corresponding SET and DEL commands are used for manipulation. The assumption is that set-like commands will be sent via an RTM_SETDCB message, and get-like ones via RTM_GETDCB. However, this assumption is not enforced. It is therefore possible to manipulate DCB objects without CAP_NET_ADMIN capability by sending the corresponding command in an RTM_GETDCB message. That is a bug. Fix it by validating the type of the request message against the type used for the response. Fixes: 2f90b8657ec9 ("ixgbe: this patch adds support for DCB to the kernel and ixgbe driver") Signed-off-by: Petr Machata <me@pmachata.org> Link: https://lore.kernel.org/r/a2a9b88418f3a58ef211b718f2970128ef9e3793.1608673640.git.me@pmachata.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-23net: ipa: use state to determine event ring command successAlex Elder1-12/+22
This patch implements the same basic fix for event rings as the previous one does for channels. The result of issuing an event ring control command should be that the event ring changes state. If enabled, a completion interrupt signals that the event ring state has changed. This interrupt is enabled by gsi_evt_ring_command() and disabled again after the command has completed (or we time out). There is a window of time during which the command could complete successfully without interrupting. This would cause the event ring to transition to the desired new state. So whether a event ring command ends via completion interrupt or timeout, we can consider the command successful if the event ring has entered the desired state (and a failure if it has not, regardless of the cause). Fixes: b4175f8731f78 ("net: ipa: only enable GSI event control IRQs when needed") Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-23net: ipa: use state to determine channel command successAlex Elder1-21/+22
The result of issuing a channel control command should be that the channel changes state. If enabled, a completion interrupt signals that the channel state has changed. This interrupt is enabled by gsi_channel_command() and disabled again after the command has completed (or we time out). There is a window of time--after the completion interrupt is disabled but before the channel state is read--during which the command could complete successfully without interrupting. This would cause the channel to transition to the desired new state. So whether a channel command ends via completion interrupt or timeout, we can consider the command successful if the channel has entered the desired state (and a failure if it has not, regardless of the cause). Fixes: d6c9e3f506ae8 ("net: ipa: only enable generic command completion IRQ when needed"); Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-23net: ipa: clear pending interrupts before enablingAlex Elder1-0/+12
We enable the completion interrupt for channel or event ring commands only when we issue them. The interrupt is disabled after the interrupt has fired, or after we have timed out waiting for it. If we time out, the command could complete after the interrupt has been disabled, causing a state change in the channel or event ring. The interrupt associated with that state change would be delivered the next time the completion interrupt is enabled. To avoid previous command completions interfering with new commands, clear all pending completion interrupts before re-enabling them for a new command. Fixes: b4175f8731f78 ("net: ipa: only enable GSI event control IRQs when needed") Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-23stmmac: intel: Add PCI IDs for TGL-H platformNoor Azura Ahmad Tarmizi1-0/+4
Add TGL-H PCI info and PCI IDs for the new TSN Controller to the list of supported devices. Signed-off-by: Noor Azura Ahmad Tarmizi <noor.azura.ahmad.tarmizi@intel.com> Signed-off-by: Voon Weifeng <weifeng.voon@intel.com> Signed-off-by: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com> Link: https://lore.kernel.org/r/20201222160337.30870-1-muhammad.husaini.zulkifli@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-23net: ipa: fix interconnect enable bugAlex Elder1-2/+2
When the core clock rate and interconnect bandwidth specifications were moved into configuration data, a copy/paste bug was introduced, causing the memory interconnect bandwidth to be set three times rather than enabling the three different interconnects. Fix this bug. Fixes: 91d02f9551501 ("net: ipa: use config data for clocking") Signed-off-by: Alex Elder <elder@linaro.org> Reviewed-by: Georgi Djakov <georgi.djakov@linaro.org> Link: https://lore.kernel.org/r/20201222151613.5730-1-elder@linaro.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-23virtio_net: Fix recursive call to cpus_read_lock()Jeff Dike1-5/+7
virtnet_set_channels can recursively call cpus_read_lock if CONFIG_XPS and CONFIG_HOTPLUG are enabled. The path is: virtnet_set_channels - calls get_online_cpus(), which is a trivial wrapper around cpus_read_lock() netif_set_real_num_tx_queues netif_reset_xps_queues_gt netif_reset_xps_queues - calls cpus_read_lock() This call chain and potential deadlock happens when the number of TX queues is reduced. This commit the removes netif_set_real_num_[tr]x_queues calls from inside the get/put_online_cpus section, as they don't require that it be held. Fixes: 47be24796c13 ("virtio-net: fix the set affinity bug when CPU IDs are not consecutive") Signed-off-by: Jeff Dike <jdike@akamai.com> Acked-by: Jason Wang <jasowang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Link: https://lore.kernel.org/r/20201223025421.671-1-jdike@akamai.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-22qede: fix offload for IPIP tunnel packetsManish Chopra1-0/+5
IPIP tunnels packets are unknown to device, hence these packets are incorrectly parsed and caused the packet corruption, so disable offlods for such packets at run time. Signed-off-by: Manish Chopra <manishc@marvell.com> Signed-off-by: Sudarsana Kalluru <skalluru@marvell.com> Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Link: https://lore.kernel.org/r/20201221145530.7771-1-manishc@marvell.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-22docs: netdev-FAQ: fix question headers formattingBaruch Siach1-67/+59
Join adjacent questions to a single question line. This fixes the formatting of questions that were not part of the heading. Also, drop Q: and A: prefixes. We don't need them now that questions and answers are visually separated. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Link: https://lore.kernel.org/r/f76078ba5547744f2ec178984c32fbc7dcd29a2b.1608454187.git.baruch@tkos.co.il Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-22net: ethernet: mvneta: Fix error handling in mvneta_probeDinghao Liu1-1/+1
When mvneta_port_power_up() fails, we should execute cleanup functions after label err_netdev to avoid memleak. Fixes: 41c2b6b4f0f80 ("net: ethernet: mvneta: Add back interface mode validation") Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn> Link: https://lore.kernel.org/r/20201220082930.21623-1-dinghao.liu@zju.edu.cn Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-22ibmvnic: fix login buffer memory leakLijun Pan1-0/+3
Commit 34f0f4e3f488 ("ibmvnic: Fix login buffer memory leaks") frees login_rsp_buffer in release_resources() and send_login() because handle_login_rsp() does not free it. Commit f3ae59c0c015 ("ibmvnic: store RX and TX subCRQ handle array in ibmvnic_adapter struct") frees login_rsp_buffer in handle_login_rsp(). It seems unnecessary to free it in release_resources() and send_login(). There are chances that handle_login_rsp returns earlier without freeing buffers. Double-checking the buffer is harmless since release_login_buffer and release_login_rsp_buffer will do nothing if buffer is already freed. Fixes: f3ae59c0c015 ("ibmvnic: store RX and TX subCRQ handle array in ibmvnic_adapter struct") Fixes: 34f0f4e3f488 ("ibmvnic: Fix login buffer memory leaks") Signed-off-by: Lijun Pan <ljp@linux.ibm.com> Link: https://lore.kernel.org/r/20201219213919.21045-1-ljp@linux.ibm.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-22MAINTAINERS: remove names from mailing list maintainersJakub Kicinski1-12/+12
When searching for inactive maintainers it's useful to filter out mailing list addresses. Such "maintainers" will obviously never feature in a "From:" line of an email or a review tag. Since "L:" entries only provide the address of a mailing list without a fancy name extend this pattern to "M:" entries. Alternatively we could reserve M: entries for humans only and move the fake "maintainers" to L:. While I'd personally prefer to reserve M: for humans only, I'm not 100% that's a great choice either, given most L: entries are in fact open mailing lists with public archives. Link: https://lore.kernel.org/r/20201219185538.750076-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-22net: stmmac: dwmac-meson8b: ignore the second clock inputMartin Blumenstingl1-1/+1
The dwmac glue registers on Amlogic Meson8b and newer SoCs has two clock inputs: - Meson8b and Meson8m2: MPLL2 and MPLL2 (the same parent is wired to both inputs) - GXBB, GXL, GXM, AXG, G12A, G12B, SM1: FCLK_DIV2 and MPLL2 All known vendor kernels and u-boots are using the first input only. We let the common clock framework automatically choose the "right" parent. For some boards this causes a problem though, specificially with G12A and newer SoCs. The clock input is used for generating the 125MHz RGMII TX clock. For the two input clocks this means on G12A: - FCLK_DIV2: 999999985Hz / 8 = 124999998.125Hz - MPLL2: 499999993Hz / 4 = 124999998.25Hz In theory MPLL2 is the "better" clock input because it's gets us 0.125Hz closer to the requested frequency than FCLK_DIV2. In reality however there is a resource conflict because MPLL2 is needed to generate some of the audio clocks. dwmac-meson8b probes first and sets up the clock tree with MPLL2. This works fine until the audio driver comes and "steals" the MPLL2 clocks and configures it with it's own rate (294909637Hz). The common clock framework happily changes the MPLL2 rate but does not reconfigure our RGMII TX clock tree, which then ends up at 73727409Hz, which is more than 40% off the requested 125MHz. Don't use the second clock input for now to force the common clock framework to always select the first parent. This mimics the behavior from the vendor driver and fixes the clock resource conflict with the audio driver on G12A boards. Once the common clock framework can handle this situation this change can be reverted again. Fixes: 566e8251625304 ("net: stmmac: add a glue driver for the Amlogic Meson 8b / GXBB DWMAC") Reported-by: Thomas Graichen <thomas.graichen@gmail.com> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Tested-by: thomas graichen <thomas.graichen@gmail.com> Link: https://lore.kernel.org/r/20201219135036.3216017-1-martin.blumenstingl@googlemail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-21net: mvpp2: Fix GoP port 3 Networking Complex Control configurationsStefan Chulski1-1/+1
During GoP port 2 Networking Complex Control mode of operation configurations, also GoP port 3 mode of operation was wrongly set. Patch removes these configurations. Fixes: f84bf386f395 ("net: mvpp2: initialize the GoP") Acked-by: Marcin Wojtas <mw@semihalf.com> Signed-off-by: Stefan Chulski <stefanc@marvell.com> Link: https://lore.kernel.org/r/1608462149-1702-1-git-send-email-stefanc@marvell.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-21ppp: Fix PPPIOCUNBRIDGECHAN request numberGuillaume Nault1-1/+1
PPPIOCGL2TPSTATS already uses 54. This shouldn't be a problem in practice, but let's keep the logical decreasing assignment scheme. Fixes: 4cf476ced45d ("ppp: add PPPIOCBRIDGECHAN and PPPIOCUNBRIDGECHAN ioctls") Signed-off-by: Guillaume Nault <gnault@redhat.com> Link: https://lore.kernel.org/r/e3a4c355e3820331d8e1fffef8522739aae58b57.1608380117.git.gnault@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-21atm: idt77252: call pci_disable_device() on error pathDan Carpenter1-1/+1
This error path needs to disable the pci device before returning. Fixes: ede58ef28e10 ("atm: remove deprecated use of pci api") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/X93dmC4NX0vbTpGp@mwanda Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-21ionic: account for vlan tag len in rx buffer lenShannon Nelson1-1/+1
Let the FW know we have enough receive buffer space for the vlan tag if it isn't stripped. Fixes: 0f3154e6bcb3 ("ionic: Add Tx and Rx handling") Signed-off-by: Shannon Nelson <snelson@pensando.io> Link: https://lore.kernel.org/r/20201218215001.64696-1-snelson@pensando.io Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-21ethernet: ucc_geth: fix use-after-free in ucc_geth_remove()Rasmus Villemoes1-1/+1
ugeth is the netdiv_priv() part of the netdevice. Accessing the memory pointed to by ugeth (such as done by ucc_geth_memclean() and the two of_node_puts) after free_netdev() is thus use-after-free. Fixes: 80a9fad8e89a ("ucc_geth: fix module removal") Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-21ethernet: ucc_geth: fix definition and size of ucc_geth_tx_global_pramRasmus Villemoes1-1/+8
Table 8-53 in the QUICC Engine Reference manual shows definitions of fields up to a size of 192 bytes, not just 128. But in table 8-111, one does find the text Base Address of the Global Transmitter Parameter RAM Page. [...] The user needs to allocate 128 bytes for this page. The address must be aligned to the page size. I've checked both rev. 7 (11/2015) and rev. 9 (05/2018) of the manual; they both have this inconsistency (and the table numbers are the same). Adding a bit of debug printing, on my board the struct ucc_geth_tx_global_pram is allocated at offset 0x880, while the (opaque) ucc_geth_thread_data_tx gets allocated immediately afterwards, at 0x900. So whatever the engine writes into the thread data overlaps with the tail of the global tx pram (and devmem says that something does get written during a simple ping). I haven't observed any failure that could be attributed to this, but it seems to be the kind of thing that would be extremely hard to debug. So extend the struct definition so that we do allocate 192 bytes. Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-21ethernet: ucc_geth: set dev->max_mtu to 1518Rasmus Villemoes1-0/+1
All the buffers and registers are already set up appropriately for an MTU slightly above 1500, so we just need to expose this to the networking stack. AFAICT, there's no need to implement .ndo_change_mtu when the receive buffers are always set up to support the max_mtu. This fixes several warnings during boot on our mpc8309-board with an embedded mv88e6250 switch: mv88e6085 mdio@e0102120:10: nonfatal error -34 setting MTU 1500 on port 0 ... mv88e6085 mdio@e0102120:10: nonfatal error -34 setting MTU 1500 on port 4 ucc_geth e0102000.ethernet eth1: error -22 setting MTU to 1504 to include DSA overhead The last line explains what the DSA stack tries to do: achieving an MTU of 1500 on-the-wire requires that the master netdevice connected to the CPU port supports an MTU of 1500+the tagging overhead. Fixes: bfcb813203e6 ("net: dsa: configure the MTU for switch ports") Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-21net: systemport: set dev->max_mtu to UMAC_MAX_MTU_SIZEFlorian Fainelli1-0/+1
The driver is already allocating receive buffers of 2KiB and the Ethernet MAC is configured to accept frames up to UMAC_MAX_MTU_SIZE. Fixes: bfcb813203e6 ("net: dsa: configure the MTU for switch ports") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Link: https://lore.kernel.org/r/20201218173843.141046-1-f.fainelli@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-21MAINTAINERS: switch to different email addressArend van Spriel1-1/+1
Switching to private mail account as work email is polluted with a legal disclaimer. Just making it extra clear by changing the email address in the MAINTAINERS file as well. Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com> Signed-off-by: Arend van Spriel <aspriel@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20201220141807.17278-1-aspriel@gmail.com
2020-12-20mt76: mt7915: fix MESH ifdef blockRandy Dunlap1-2/+2
Fix a build error when CONFIG_MAC80211_MESH is not enabled: ../drivers/net/wireless/mediatek/mt76/mt7915/init.c:47:2: error: expected expression before '}' token }, { ^ Fixes: af901eb4ab80 ("mt76: mt7915: get rid of dbdc debugfs knob") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Shayne Chen <shayne.chen@mediatek.com> Cc: Ryder Lee <ryder.lee@mediatek.com> Cc: Lorenzo Bianconi <lorenzo@kernel.org> Cc: Felix Fietkau <nbd@nbd.name> Cc: linux-wireless@vger.kernel.org Cc: Kalle Valo <kvalo@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20201218173202.23159-1-rdunlap@infradead.org
2020-12-20mt76: mt76s: fix NULL pointer dereference in mt76s_process_tx_queueLorenzo Bianconi1-1/+5
Fix a possible NULL pointer dereference in mt76s_process_tx_queue that can occur if status thread runs before allocating tx queues Fixes: 6a618acb7e62 ("mt76: sdio: convert {status/net}_work to mt76_worker") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/b49c1b4edacd87b2241a9fd0431dd4864c8963f6.1607418933.git.lorenzo@kernel.org
2020-12-20mt76: sdio: remove wake logic in mt76s_process_tx_queueLorenzo Bianconi1-12/+3
Similar to mmio/usb code path, remove wake logic in mt76s_process_tx_queue routine. Starting from commit 90d494c99a99 ("mt76: improve tx queue stop/wake"), the wake queue logic on the sdio status path is no longer necessary since the hw queues are no longer stopped on the mt76 tx path. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/d2d7d9d437f4dec2ef1df0ed070b9cf299f021ad.1607164041.git.lorenzo@kernel.org
2020-12-20mt76: usb: remove wake logic in mt76u_status_workerLorenzo Bianconi1-7/+0
Similar to mmio code path, remove wake logic in mt76u_status_worker handler. Starting from commit 90d494c99a99 ("mt76: improve tx queue stop/wake")', the wake queue logic on the usb status path is no longer necessary since the hw queues are no longer stopped on the mt76 tx path. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/00009bf0cfdc9565e4432cad3ed51888c667c25d.1607164041.git.lorenzo@kernel.org
2020-12-19net: mvpp2: prs: fix PPPoE with ipv6 packet parseStefan Chulski1-2/+3
Current PPPoE+IPv6 entry is jumping to 'next-hdr' field and not to 'DIP' field as done for IPv4. Fixes: 3f518509dedc ("ethernet: Add new driver for Marvell Armada 375 network unit") Reported-by: Liron Himi <lironh@marvell.com> Signed-off-by: Stefan Chulski <stefanc@marvell.com> Link: https://lore.kernel.org/r/1608230266-22111-1-git-send-email-stefanc@marvell.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-19net: mvpp2: Add TCAM entry to drop flow control pause framesStefan Chulski2-1/+34
Issue: Flow control frame used to pause GoP(MAC) was delivered to the CPU and created a load on the CPU. Since XOFF/XON frames are used only by MAC, these frames should be dropped inside MAC. Fix: According to 802.3-2012 - IEEE Standard for Ethernet pause frame has unique destination MAC address 01-80-C2-00-00-01. Add TCAM parser entry to track and drop pause frames by destination MAC. Fixes: 3f518509dedc ("ethernet: Add new driver for Marvell Armada 375 network unit") Signed-off-by: Stefan Chulski <stefanc@marvell.com> Link: https://lore.kernel.org/r/1608229817-21951-1-git-send-email-stefanc@marvell.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-19net: mvpp2: disable force link UP during port init procedureStefan Chulski1-1/+13
Force link UP can be enabled by bootloader during tftpboot and breaks NFS support. Force link UP disabled during port init procedure. Fixes: f84bf386f395 ("net: mvpp2: initialize the GoP") Signed-off-by: Stefan Chulski <stefanc@marvell.com> Acked-by: Marcin Wojtas <mw@semihalf.com> Link: https://lore.kernel.org/r/1608216735-14501-1-git-send-email-stefanc@marvell.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-18net/sched: sch_taprio: ensure to reset/destroy all child qdiscsDavide Caratti1-3/+4
taprio_graft() can insert a NULL element in the array of child qdiscs. As a consquence, taprio_reset() might not reset child qdiscs completely, and taprio_destroy() might leak resources. Fix it by ensuring that loops that iterate over q->qdiscs[] don't end when they find the first NULL item. Fixes: 44d4775ca518 ("net/sched: sch_taprio: reset child qdiscs before freeing them") Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler") Suggested-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Davide Caratti <dcaratti@redhat.com> Link: https://lore.kernel.org/r/13edef6778fef03adc751582562fba4a13e06d6a.1608240532.git.dcaratti@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-18net: af_packet: fix procfs header for 64-bit pointersBaruch Siach1-1/+3
On 64-bit systems the packet procfs header field names following 'sk' are not aligned correctly: sk RefCnt Type Proto Iface R Rmem User Inode 00000000605d2c64 3 3 0003 7 1 450880 0 16643 00000000080e9b80 2 2 0000 0 0 0 0 17404 00000000b23b8a00 2 2 0000 0 0 0 0 17421 ... With this change field names are correctly aligned: sk RefCnt Type Proto Iface R Rmem User Inode 000000005c3b1d97 3 3 0003 7 1 21568 0 16178 000000007be55bb7 3 3 fbce 8 1 0 0 16250 00000000be62127d 3 3 fbcd 8 1 0 0 16254 ... Signed-off-by: Baruch Siach <baruch@tkos.co.il> Link: https://lore.kernel.org/r/54917251d8433735d9a24e935a6cb8eb88b4058a.1608103684.git.baruch@tkos.co.il Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-18ath11k: pci: disable ASPM L0sLs before downloading firmwareCarl Huang2-0/+38
Sometimes QCA6390 doesn't switch to amss state as device enters L1ss state, so disable L0sL1s during firmware downloading. Driver recovers the ASPM to default value in start callback or powerdown callback. Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1 Signed-off-by: Carl Huang <cjhuang@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/1608218530-15426-1-git-send-email-kvalo@codeaurora.org
2020-12-18ath11k: qmi: try to allocate a big block of DMA memory firstCarl Huang2-2/+23
Not all firmware versions support allocating DMA memory in smaller blocks so first try to allocate big block of DMA memory for QMI. If the allocation fails, let firmware request multiple blocks of DMA memory with smaller size. This also fixes an unnecessary error message seen during ath11k probe on QCA6390: ath11k_pci 0000:06:00.0: Respond mem req failed, result: 1, err: 0 ath11k_pci 0000:06:00.0: qmi failed to respond fw mem req:-22 Tested-on: QCA6390 hw2.0 PCI WLAN.HST.1.0.1-01740-QCAHSTSWPLZ_V2_TO_X86-1 Signed-off-by: Carl Huang <cjhuang@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/1608127593-15192-1-git-send-email-kvalo@codeaurora.org
2020-12-17iavf: fix double-release of rtnl_lockJakub Kicinski1-3/+1
This code does not jump to exit on an error in iavf_lan_add_device(), so the rtnl_unlock() from the normal path will follow. Fixes: b66c7bc1cd4d ("iavf: Refactor init state machine") Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Tony Nguyen <anthony.l.nguyen@intel.com> Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-12-17i40e: Fix Error I40E_AQ_RC_EINVAL when removing VFsSylwester Dziedziuch3-2/+15
When removing VFs for PF added to bridge there was an error I40E_AQ_RC_EINVAL. It was caused by not properly resetting and reinitializing PF when adding/removing VFs. Changed how reset is performed when adding/removing VFs to properly reinitialize PFs VSI. Fixes: fc60861e9b00 ("i40e: start up in VEPA mode by default") Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com> Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-12-17net/sched: sch_taprio: reset child qdiscs before freeing themDavide Caratti1-1/+16
syzkaller shows that packets can still be dequeued while taprio_destroy() is running. Let sch_taprio use the reset() function to cancel the advance timer and drop all skbs from the child qdiscs. Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler") Link: https://syzkaller.appspot.com/bug?id=f362872379bf8f0017fb667c1ab158f2d1e764ae Reported-by: syzbot+8971da381fb5a31f542d@syzkaller.appspotmail.com Signed-off-by: Davide Caratti <dcaratti@redhat.com> Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com> Link: https://lore.kernel.org/r/63b6d79b0e830ebb0283e020db4df3cdfdfb2b94.1608142843.git.dcaratti@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-17nfp: move indirect block cleanup to flower app stop callbackSimon Horman1-3/+3
The indirect block cleanup may cause control messages to be sent if offloaded flows are present. However, by the time the flower app cleanup callback is called txbufs are no longer available and attempts to send control messages result in a NULL-pointer dereference in nfp_ctrl_tx_one(). This problem may be resolved by moving the indirect block cleanup to the stop callback, where txbufs are still available. As suggested by Jakub Kicinski and Louis Peens. Fixes: a1db217861f3 ("net: flow_offload: fix flow_indr_dev_unregister path") Signed-off-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: Louis Peens <louis.peens@netronome.com> Link: https://lore.kernel.org/r/20201216145701.30005-1-simon.horman@netronome.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-17octeontx2-af: Fix undetected unmap PF error checkColin Ian King1-1/+2
Currently the check for an unmap PF error is always going to be false because intr_val is a 32 bit int and is being bit-mask checked against 1ULL << 32. Fix this by making intr_val a u64 to match the type at it is copied from, namely npa_event_context->npa_af_rvu_ge. Addresses-Coverity: ("Operands don't affect result") Fixes: f1168d1e207c ("octeontx2-af: Add devlink health reporters for NPA") Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: George Cherian <george.cherian@marvell.com> Link: https://lore.kernel.org/r/20201216123604.15369-1-colin.king@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-17net: nixge: fix spelling mistake in Kconfig: "Instuments" -> "Instruments"Colin Ian King1-1/+1
There is a spelling mistake in the Kconfig. Fix it. Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20201216120020.13149-1-colin.king@canonical.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-17qlcnic: Fix error code in probeDan Carpenter1-0/+1
Return -EINVAL if we can't find the correct device. Currently it returns success. Fixes: 13159183ec7a ("qlcnic: 83xx base driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/X9nHbMqEyI/xPfGd@mwanda Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-17netfilter: ipset: fix shift-out-of-bounds in htable_bits()Vasily Averin1-15/+5
htable_bits() can call jhash_size(32) and trigger shift-out-of-bounds UBSAN: shift-out-of-bounds in net/netfilter/ipset/ip_set_hash_gen.h:151:6 shift exponent 32 is too large for 32-bit type 'unsigned int' CPU: 0 PID: 8498 Comm: syz-executor519 Not tainted 5.10.0-rc7-next-20201208-syzkaller #0 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:120 ubsan_epilogue+0xb/0x5a lib/ubsan.c:148 __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 lib/ubsan.c:395 htable_bits net/netfilter/ipset/ip_set_hash_gen.h:151 [inline] hash_mac_create.cold+0x58/0x9b net/netfilter/ipset/ip_set_hash_gen.h:1524 ip_set_create+0x610/0x1380 net/netfilter/ipset/ip_set_core.c:1115 nfnetlink_rcv_msg+0xecc/0x1180 net/netfilter/nfnetlink.c:252 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494 nfnetlink_rcv+0x1ac/0x420 net/netfilter/nfnetlink.c:600 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330 netlink_sendmsg+0x907/0xe40 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2345 ___sys_sendmsg+0xf3/0x170 net/socket.c:2399 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2432 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 This patch replaces htable_bits() by simple fls(hashsize - 1) call: it alone returns valid nbits both for round and non-round hashsizes. It is normal to set any nbits here because it is validated inside following htable_size() call which returns 0 for nbits>31. Fixes: 1feab10d7e6d("netfilter: ipset: Unified hash type generation") Reported-by: syzbot+d66bfadebca46cf61a2b@syzkaller.appspotmail.com Signed-off-by: Vasily Averin <vvs@virtuozzo.com> Acked-by: Jozsef Kadlecsik <kadlec@netfilter.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-12-17netfilter: ipset: fixes possible oops in mtype_resizeVasily Averin1-9/+13
currently mtype_resize() can cause oops t = ip_set_alloc(htable_size(htable_bits)); if (!t) { ret = -ENOMEM; goto out; } t->hregion = ip_set_alloc(ahash_sizeof_regions(htable_bits)); Increased htable_bits can force htable_size() to return 0. In own turn ip_set_alloc(0) returns not 0 but ZERO_SIZE_PTR, so follwoing access to t->hregion should trigger an OOPS. Signed-off-by: Vasily Averin <vvs@virtuozzo.com> Acked-by: Jozsef Kadlecsik <kadlec@netfilter.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-12-17netfilter: x_tables: Update remaining dereference to RCUSubash Abhinov Kasiviswanathan3-3/+3
This fixes the dereference to fetch the RCU pointer when holding the appropriate xtables lock. Reported-by: kernel test robot <lkp@intel.com> Fixes: cc00bcaa5899 ("netfilter: x_tables: Switch synchronization to RCU") Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org> Reviewed-by: Florian Westphal <fw@strlen.de> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2020-12-17mptcp: fix pending data accountingPaolo Abeni1-3/+2
When sendmsg() needs to wait for memory, the pending data is not updated. That causes a drift in forward memory allocation, leading to stall and/or warnings at socket close time. This change addresses the above issue moving the pending data counter update inside the sendmsg() main loop. Fixes: 6e628cd3a8f7 ("mptcp: use mptcp release_cb for delayed tasks") Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-17mptcp: push pending frames when subflow has free spacePaolo Abeni4-10/+13
When multiple subflows are active, we can receive a window update on subflow with no write space available. MPTCP will try to push frames on such subflow and will fail. Pending frames will be pushed only after receiving a window update on a subflow with some wspace available. Overall the above could lead to suboptimal aggregate bandwidth usage. Instead, we should try to push pending frames as soon as the subflow reaches both conditions mentioned above. We can finally enable self-tests with asymmetric links, as the above makes them finally pass. Fixes: 6f8a612a33e4 ("mptcp: keep track of advertised windows right edge") Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-17mptcp: properly annotate nested lockPaolo Abeni1-1/+1
MPTCP closes the subflows while holding the msk-level lock. While acquiring the subflow socket lock we need to use the correct nested annotation, or we can hit a lockdep splat at runtime. Reported-and-tested-by: Geliang Tang <geliangtang@gmail.com> Fixes: e16163b6e2b7 ("mptcp: refactor shutdown and close") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-12-17mptcp: fix security context on server socketPaolo Abeni1-0/+2
Currently MPTCP is not propagating the security context from the ingress request socket to newly created msk at clone time. Address the issue invoking the missing security helper. Fixes: cf7da0d66cc1 ("mptcp: Create SUBFLOW socket for incoming connections") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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