kernel/drivers/net/wireless/intel/iwlwifi/mvm, branch linux-6.2.y

wifi: iwlwifi: mvm: fix potential memory leak

2023-05-17T11:58:55Z

[ Upstream commit 457d7fb03e6c3d73fbb509bd85fc4b02d1ab405e ] If we do get multiple notifications from firmware, then we might have allocated 'notif', but don't free it. Fix that by checking for duplicates before allocation. Fixes: 4da46a06d443 ("wifi: iwlwifi: mvm: Add support for wowlan info notification") Signed-off-by: Johannes Berg Signed-off-by: Gregory Greenman Link: https://lore.kernel.org/r/20230418122405.116758321cc4.I8bdbcbb38c89ac637eaa20dda58fa9165b25893a@changeid Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

wifi: iwlwifi: mvm: check firmware response size

2023-05-11T14:11:17Z

[ Upstream commit 13513cec93ac9902d0b896976d8bab3758a9881c ] Check the firmware response size for responses to the memory read/write command in debugfs before using it. Fixes: 2b55f43f8e47 ("iwlwifi: mvm: Add mem debugfs entry") Signed-off-by: Johannes Berg Signed-off-by: Gregory Greenman Link: https://lore.kernel.org/r/20230417113648.0d56fcaf68ee.I70e9571f3ed7263929b04f8fabad23c9b999e4ea@changeid Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

wifi: iwlwifi: mvm: initialize seq variable

2023-05-11T14:11:15Z

[ Upstream commit 11e94d2bcd88dea5d9ce99555b6b172f5232d3e2 ] Clang static analysis reports this issue d3.c:567:22: warning: The left operand of '>' is a garbage value if (seq.tkip.iv32 > cur_rx_iv32) ~~~~~~~~~~~~~ ^ seq is never initialized. Call ieee80211_get_key_rx_seq() to initialize seq. Fixes: 0419e5e672d6 ("iwlwifi: mvm: d3: separate TKIP data from key iteration") Signed-off-by: Tom Rix Reviewed-by: Nick Desaulniers Signed-off-by: Gregory Greenman Link: https://lore.kernel.org/r/20230414130637.6dd372f84f93.If1f708c90e6424a935b4eba3917dfb7582e0dd0a@changeid Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

wifi: iwlwifi: mvm: don't drop unencrypted MCAST frames

2023-05-11T14:11:15Z

[ Upstream commit 8e5a26360cbe29b896b6758518280d41c3704d43 ] MCAST frames are filtered out by the driver if we are not authorized yet. Fix it to filter out only protected frames. Fixes: 147eb05f24e6 ("iwlwifi: mvm: always tell the firmware to accept MCAST frames in BSS") Signed-off-by: Ayala Beker Signed-off-by: Gregory Greenman Link: https://lore.kernel.org/r/20230413213309.9cedcc27db60.I8fb7057981392660da482dd215e85c15946d3f4b@changeid Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

wifi: iwlwifi: mvm: don't set CHECKSUM_COMPLETE for unsupported protocols

2023-05-11T14:11:14Z

[ Upstream commit 217f3c52f00d3419ecdd38a99a7eceecb11679b2 ] On Bz devices, CHECKSUM_COMPLETE was set for unsupported protocols which results in a warning. Fix it. Fixes: b6f5b647f694 ("iwlwifi: mvm: handle RX checksum on Bz devices") Signed-off-by: Avraham Stern Signed-off-by: Gregory Greenman Link: https://lore.kernel.org/r/20230413102635.a2a35286f0ca.I50daa9445a6465514c44f5096c32adef64beba5f@changeid Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

wifi: iwlwifi: mvm: fix A-MSDU checks

2023-05-11T14:11:14Z

[ Upstream commit d34d11aea2d5d71a66f2f90507c3f7202b964175 ] Since Gl A-step devices use the old checksum hardware, we shouldn't use the Bz code to check for A-MSDU combining ability; fix that. Fixes: ec18e7d4d20d ("wifi: iwlwifi: mvm: use old checksum for Bz A-step") Signed-off-by: Johannes Berg Signed-off-by: Gregory Greenman Link: https://lore.kernel.org/r/20230413102635.8c445b943fee.Ibf772102ca712f59e2ee0cdd4c344011fcf445aa@changeid Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

wifi: iwlwifi: mvm: protect TXQ list manipulation

2023-04-20T10:36:57Z

[ Upstream commit 923bf981eb6ecc027227716e30701bdcc1845fbf ] Some recent upstream debugging uncovered the fact that in iwlwifi, the TXQ list manipulation is racy. Introduce a new state bit for when the TXQ is completely ready and can be used without locking, and if that's not set yet acquire the lock to check everything correctly. Reviewed-by: Benjamin Berg Tested-by: Jose Ignacio Tornos Martinez Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

wifi: iwlwifi: mvm: fix mvmtxq->stopped handling

2023-04-20T10:36:57Z

[ Upstream commit b58e3d4311b54b6dd0e37165277965da0c9eb21d ] This could race if the queue is redirected while full, then the flushing internally would start it while it's not yet usable again. Fix it by using two state bits instead of just one. Reviewed-by: Benjamin Berg Tested-by: Jose Ignacio Tornos Martinez Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin

treewide: Convert del_timer() to timer_shutdown()

2022-12-25T21:38:09Z

Due to several bugs caused by timers being re-armed after they are shutdown and just before they are freed, a new state of timers was added called "shutdown". After a timer is set to this state, then it can no longer be re-armed. The following script was run to find all the trivial locations where del_timer() or del_timer_sync() is called in the same function that the object holding the timer is freed. It also ignores any locations where the timer->function is modified between the del_timer*() and the free(), as that is not considered a "trivial" case. This was created by using a coccinelle script and the following commands: $ cat timer.cocci @@ expression ptr, slab; identifier timer, rfield; @@ ( - del_timer(&ptr->timer); + timer_shutdown(&ptr->timer); | - del_timer_sync(&ptr->timer); + timer_shutdown_sync(&ptr->timer); ) ... when strict when != ptr->timer ( kfree_rcu(ptr, rfield); | kmem_cache_free(slab, ptr); | kfree(ptr); ) $ spatch timer.cocci . > /tmp/t.patch $ patch -p1 < /tmp/t.patch Link: https://lore.kernel.org/lkml/20221123201306.823305113@linutronix.de/ Signed-off-by: Steven Rostedt (Google) Acked-by: Pavel Machek [ LED ] Acked-by: Kalle Valo [ wireless ] Acked-by: Paolo Abeni [ networking ] Signed-off-by: Linus Torvalds

Merge tag 'net-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

2022-12-13T23:47:48Z

Pull networking updates from Paolo Abeni: "Core: - Allow live renaming when an interface is up - Add retpoline wrappers for tc, improving considerably the performances of complex queue discipline configurations - Add inet drop monitor support - A few GRO performance improvements - Add infrastructure for atomic dev stats, addressing long standing data races - De-duplicate common code between OVS and conntrack offloading infrastructure - A bunch of UBSAN_BOUNDS/FORTIFY_SOURCE improvements - Netfilter: introduce packet parser for tunneled packets - Replace IPVS timer-based estimators with kthreads to scale up the workload with the number of available CPUs - Add the helper support for connection-tracking OVS offload BPF: - Support for user defined BPF objects: the use case is to allocate own objects, build own object hierarchies and use the building blocks to build own data structures flexibly, for example, linked lists in BPF - Make cgroup local storage available to non-cgroup attached BPF programs - Avoid unnecessary deadlock detection and failures wrt BPF task storage helpers - A relevant bunch of BPF verifier fixes and improvements - Veristat tool improvements to support custom filtering, sorting, and replay of results - Add LLVM disassembler as default library for dumping JITed code - Lots of new BPF documentation for various BPF maps - Add bpf_rcu_read_{,un}lock() support for sleepable programs - Add RCU grace period chaining to BPF to wait for the completion of access from both sleepable and non-sleepable BPF programs - Add support storing struct task_struct objects as kptrs in maps - Improve helper UAPI by explicitly defining BPF_FUNC_xxx integer values - Add libbpf *_opts API-variants for bpf_*_get_fd_by_id() functions Protocols: - TCP: implement Protective Load Balancing across switch links - TCP: allow dynamically disabling TCP-MD5 static key, reverting back to fast[er]-path - UDP: Introduce optional per-netns hash lookup table - IPv6: simplify and cleanup sockets disposal - Netlink: support different type policies for each generic netlink operation - MPTCP: add MSG_FASTOPEN and FastOpen listener side support - MPTCP: add netlink notification support for listener sockets events - SCTP: add VRF support, allowing sctp sockets binding to VRF devices - Add bridging MAC Authentication Bypass (MAB) support - Extensions for Ethernet VPN bridging implementation to better support multicast scenarios - More work for Wi-Fi 7 support, comprising conversion of all the existing drivers to internal TX queue usage - IPSec: introduce a new offload type (packet offload) allowing complete header processing and crypto offloading - IPSec: extended ack support for more descriptive XFRM error reporting - RXRPC: increase SACK table size and move processing into a per-local endpoint kernel thread, reducing considerably the required locking - IEEE 802154: synchronous send frame and extended filtering support, initial support for scanning available 15.4 networks - Tun: bump the link speed from 10Mbps to 10Gbps - Tun/VirtioNet: implement UDP segmentation offload support Driver API: - PHY/SFP: improve power level switching between standard level 1 and the higher power levels - New API for netdev <-> devlink_port linkage - PTP: convert existing drivers to new frequency adjustment implementation - DSA: add support for rx offloading - Autoload DSA tagging driver when dynamically changing protocol - Add new PCP and APPTRUST attributes to Data Center Bridging - Add configuration support for 800Gbps link speed - Add devlink port function attribute to enable/disable RoCE and migratable - Extend devlink-rate to support strict prioriry and weighted fair queuing - Add devlink support to directly reading from region memory - New device tree helper to fetch MAC address from nvmem - New big TCP helper to simplify temporary header stripping New hardware / drivers: - Ethernet: - Marvel Octeon CNF95N and CN10KB Ethernet Switches - Marvel Prestera AC5X Ethernet Switch - WangXun 10 Gigabit NIC - Motorcomm yt8521 Gigabit Ethernet - Microchip ksz9563 Gigabit Ethernet Switch - Microsoft Azure Network Adapter - Linux Automation 10Base-T1L adapter - PHY: - Aquantia AQR112 and AQR412 - Motorcomm YT8531S - PTP: - Orolia ART-CARD - WiFi: - MediaTek Wi-Fi 7 (802.11be) devices - RealTek rtw8821cu, rtw8822bu, rtw8822cu and rtw8723du USB devices - Bluetooth: - Broadcom BCM4377/4378/4387 Bluetooth chipsets - Realtek RTL8852BE and RTL8723DS - Cypress.CYW4373A0 WiFi + Bluetooth combo device Drivers: - CAN: - gs_usb: bus error reporting support - kvaser_usb: listen only and bus error reporting support - Ethernet NICs: - Intel (100G): - extend action skbedit to RX queue mapping - implement devlink-rate support - support direct read from memory - nVidia/Mellanox (mlx5): - SW steering improvements, increasing rules update rate - Support for enhanced events compression - extend H/W offload packet manipulation capabilities - implement IPSec packet offload mode - nVidia/Mellanox (mlx4): - better big TCP support - Netronome Ethernet NICs (nfp): - IPsec offload support - add support for multicast filter - Broadcom: - RSS and PTP support improvements - AMD/SolarFlare: - netlink extened ack improvements - add basic flower matches to offload, and related stats - Virtual NICs: - ibmvnic: introduce affinity hint support - small / embedded: - FreeScale fec: add initial XDP support - Marvel mv643xx_eth: support MII/GMII/RGMII modes for Kirkwood - TI am65-cpsw: add suspend/resume support - Mediatek MT7986: add RX wireless wthernet dispatch support - Realtek 8169: enable GRO software interrupt coalescing per default - Ethernet high-speed switches: - Microchip (sparx5): - add support for Sparx5 TC/flower H/W offload via VCAP - Mellanox mlxsw: - add 802.1X and MAC Authentication Bypass offload support - add ip6gre support - Embedded Ethernet switches: - Mediatek (mtk_eth_soc): - improve PCS implementation, add DSA untag support - enable flow offload support - Renesas: - add rswitch R-Car Gen4 gPTP support - Microchip (lan966x): - add full XDP support - add TC H/W offload via VCAP - enable PTP on bridge interfaces - Microchip (ksz8): - add MTU support for KSZ8 series - Qualcomm 802.11ax WiFi (ath11k): - support configuring channel dwell time during scan - MediaTek WiFi (mt76): - enable Wireless Ethernet Dispatch (WED) offload support - add ack signal support - enable coredump support - remain_on_channel support - Intel WiFi (iwlwifi): - enable Wi-Fi 7 Extremely High Throughput (EHT) PHY capabilities - 320 MHz channels support - RealTek WiFi (rtw89): - new dynamic header firmware format support - wake-over-WLAN support" * tag 'net-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2002 commits) ipvs: fix type warning in do_div() on 32 bit net: lan966x: Remove a useless test in lan966x_ptp_add_trap() net: ipa: add IPA v4.7 support dt-bindings: net: qcom,ipa: Add SM6350 compatible bnxt: Use generic HBH removal helper in tx path IPv6/GRO: generic helper to remove temporary HBH/jumbo header in driver selftests: forwarding: Add bridge MDB test selftests: forwarding: Rename bridge_mdb test bridge: mcast: Support replacement of MDB port group entries bridge: mcast: Allow user space to specify MDB entry routing protocol bridge: mcast: Allow user space to add (*, G) with a source list and filter mode bridge: mcast: Add support for (*, G) with a source list and filter mode bridge: mcast: Avoid arming group timer when (S, G) corresponds to a source bridge: mcast: Add a flag for user installed source entries bridge: mcast: Expose __br_multicast_del_group_src() bridge: mcast: Expose br_multicast_new_group_src() bridge: mcast: Add a centralized error path bridge: mcast: Place netlink policy before validation functions bridge: mcast: Split (*, G) and (S, G) addition into different functions bridge: mcast: Do not derive entry type from its filter mode ...