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2026-07-24wifi: rtw89: add multicolor LED support for RTL8852CU valve boardJohnson Tsai
Add multicolor LED support for the RTL8852CU valve board to reflect wireless connection status (by default, green LED is ON when associated and OFF when disconnected). Extend the rtw89 LED subsystem with a multicolor path via led_classdev_mc, for board-level variants with more than one LED GPIO channel. Add a new RTW89_LEDS_MC Kconfig option and support multicolor LEDs through led_classdev_mc, with per-channel caching to minimize redundant register writes. The RTL8852CU valve board is wired up as the first user, driving a multicolor WRGB LED over four GPIO channels (8, 18, 16, and 17) that map to LED_COLOR_ID_WHITE/RED/GREEN/BLUE. Usage: - Auto-triggered (default): Green LED ON when connected, OFF when disconnected - Manual override (e.g., set red; channel order: WHITE RED GREEN BLUE): echo "0 1 0 0" > /sys/class/leds/rtw89-phyX-multicolor/multi_intensity echo 1 > /sys/class/leds/rtw89-phyX-multicolor/brightness Signed-off-by: Johnson Tsai <wenjie.tsai@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20260717061910.54466-3-pkshih@realtek.com
2026-07-24wifi: rtw89: add LED support to reflect the wireless association statusJohnson Tsai
Add a new RTW89_LEDS Kconfig option, along with LED structures to describe flexible GPIO mappings for chip common LED definition. Core LED lifecycle and registration logic default to the mac80211 association trigger, and chips are wired up as the first user with a single-GPIO monochrome LED. Usage: - Auto-triggered (default): ON when connected, OFF when disconnected - Manual override: echo <1|0> > /sys/class/leds/rtw89-phyX/brightness Signed-off-by: Johnson Tsai <wenjie.tsai@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20260717061910.54466-2-pkshih@realtek.com
2026-07-24wifi: rtw89: pci: enable 36-bit DMA on spacemit K3Anirudh Srinivasan
The Spacemit K3 Pico ITX Board has a RTL8852BE pcie card behind a PCIe root port, but the SoC doesn't have any 32 bit DMA addreseses which the rtw89 seems to use by default. Enable 36 bit DMA ability that the driver has when this particular root port is detected so that the driver can probe on this SoC. Tested-by: Aurelien Jarno <aurelien@aurel32.net> Acked-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Anirudh Srinivasan <asrinivasan@oss.tenstorrent.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Link: https://patch.msgid.link/20260716-rtw89-spacemit-k3-v2-2-392b577ebf75@oss.tenstorrent.com
2026-07-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-7.2-rc5). Conflicts: drivers/net/amt.c 3656a79f94c47 ("amt: re-read skb header pointers after every pull") 586c4dcf28eb6 ("amt: no longer rely on RTNL in amt_fill_info()") https://lore.kernel.org/amIaJr3aOQNS_Fvl@sirena.org.uk Adjacent changes: drivers/net/geneve.c 8efb8f8bbb35 ("geneve: require CAP_NET_ADMIN in the device netns for changelink") 0ba269933f73 ("geneve: convert config to RCU-protected pointer") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23net: dsa: microchip: Fix log typo in error pathNiklas Söderlund
All other log messages in the driver prefix hex values with 0x, add it in the one missing message. While at it also add the missing opening parenthesis in the same log message. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20260722174853.2316333-1-niklas.soderlund+renesas@ragnatech.se Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23Merge branch 'mlx5-next' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux Tariq Toukan says: ==================== mlx5-next updates 2026-07-22 * 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux: net/mlx5: Add PSP related fields to the mlx5_ifc net/mlx5: Drop redundant esw_cap, reuse e_switch_cap ==================== Link: https://patch.msgid.link/20260722071030.1693021-1-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23wifi: iwlwifi: bump core version for BZ/SC/DRMiri Korenblit
Start supporting Core 107 FW on these devices. Link: https://patch.msgid.link/20260723142324.ed92b1d7f927.I6dd10d2f9a04a36751aea9e238fecfa62fe280a6@changeid Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2026-07-23wifi: iwlwifi: regulatory: add LARI v15 DSM support bitmapPagadala Yesu Anjaneyulu
Firmware API v15 extends LARI config with the DSM function-0 support bitmap, and host must provide this information for regulatory handling. Without this, FW cannot use BIOS-reported DSM capability bits. Add oem_supported_dsm_bitmap to the host LARI config command definition and wire it into regulatory command construction. Populate it from DSM query data and keep backward compatibility by using the pre-v15 command size for command version 14. Behavior change: When DSM function-0 data is available, host includes it in the LARI config command sent to FW; older command versions remain compatible. Signed-off-by: Pagadala Yesu Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com> Link: https://patch.msgid.link/20260723142324.c576a8c7560b.I5cc1277d0ef31409f6a3364342a3f35cd9318ceb@changeid Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
2026-07-23bnge/bng_re: fix ring ID widthsVikas Gupta
Firmware requires more than 16 bits to address TX ring IDs for its internal QP management. Widen the associated HSI ring ID fields to 32 bits. The values firmware assigns remain within 24 bits, bounded by the hardware doorbell XID field. The fw_ring_id field belongs to bnge_ring_struct, a common struct shared by all ring types, so widening it to u32 applies uniformly across TX, RX, CP, and NQ rings but firmware assigns values within 16-bit range for all ring types except TX, which requires the wider field. Note that, Thor Ultra hardware has not yet been deployed and no firmware has been released to field, so backward compatibility is not a concern. Fixes: 42d1c54d6248 ("bnge/bng_re: Add a new HSI") Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com> Reviewed-by: Siva Reddy Kallam <siva.kallam@broadcom.com> Reviewed-by: Dharmender Garg <dharmender.garg@broadcom.com> Reviewed-by: Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com> Link: https://patch.msgid.link/20260721063731.2622500-1-vikas.gupta@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23Merge tag 'ovpn-net-20260720' of https://github.com/OpenVPN/ovpn-net-nextJakub Kicinski
Antonio Quartulli says: ==================== Included fixes: * ensure keepalive timestamps are computed using monotonic source * avoid UAF in unlock_ovpn() when iterating over release_list * fix memleak in selftest tool * ensure reference to peer is acquired before scheduling worker (which may drop the not-yet-taken ref) * fix refcount leak in case of concurrent TX and RX TCP error * fix potential refcount unbalance in case of sock release in P2P mode * tag 'ovpn-net-20260720' of https://github.com/OpenVPN/ovpn-net-next: ovpn: use monotonic clock for peer keepalive timeouts ovpn: fix use after free in unlock_ovpn() selftests/net: ovpn: fix getaddrinfo memory leak in ovpn_parse_remote() ovpn: hold peer before scheduling keepalive work ovpn: fix peer refcount leak in TCP error paths ovpn: avoid putting unrelated P2P peer on socket release ==================== Link: https://patch.msgid.link/20260720144131.3657121-1-antonio@openvpn.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23net: airoha: fix ETS channel derivation in airoha_tc_setup_qdisc_ets()Lorenzo Bianconi
Derive the hardware QoS channel from opt->parent instead of opt->handle in airoha_tc_setup_qdisc_ets(). The ETS qdisc handle is either user-specified or auto-allocated by qdisc_alloc_handle() and bears no relation to the HTB leaf classid that identifies the hardware channel. HTB derives the channel from TC_H_MIN(opt->classid), and ETS is always attached as a child of an HTB leaf, so its opt->parent matches that classid. Using opt->handle instead can cause two ETS qdiscs on different HTB leaves to collide on the same hardware channel, corrupting scheduler configuration and stats. Fixes: 20bf7d07c956 ("net: airoha: Add sched ETS offload support") Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20260720-airoha-ets-handle-fix-v2-1-6f7129ddc06f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23net: slip: serialize receive against buffer reallocationSungmin Kang
sl_realloc_bufs() replaces rbuff and updates buffsize while holding sl->lock. slip_receive_buf() reads those fields and writes through rbuff without holding the lock. An MTU change can therefore race with receive processing. An MTU shrink can expose the new smaller rbuff with the old larger bound, causing an out-of-bounds write. A receive callback which already loaded the old rbuff can instead continue writing after that buffer has been freed. Serialize receive processing with sl_realloc_bufs() by holding sl->lock while consuming each receive batch. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable@vger.kernel.org Signed-off-by: Sungmin Kang <726ksm@gmail.com> Link: https://patch.msgid.link/20260718073631.1674-1-726ksm@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23idpf: fix max_vport related crash on allocation error during initEmil Tantilov
Set adapter->max_vports only after successful allocation of vports, netdevs and vport_config buffers. This fixes possible crashes on reset or rmmod, following failed allocation on init [ 305.981402] idpf 0000:83:00.0: enabling device (0100 -> 0102) [ 305.994464] idpf 0000:83:00.0: Device HW Reset initiated [ 320.416872] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 320.416918] #PF: supervisor read access in kernel mode [ 320.416942] #PF: error_code(0x0000) - not-present page [ 320.416963] PGD 2099657067 P4D 0 [ 320.416983] Oops: Oops: 0000 [#1] SMP NOPTI ... [ 320.417093] RIP: 0010:idpf_remove+0x118/0x200 [idpf] [ 320.417130] Code: 8b bb 98 09 00 00 e8 17 0f 5b e5 48 8b bb e8 08 00 00 e8 0b 0f 5b e5 66 83 bb 28 06 00 00 00 48 8b bb 20 06 00 00 74 49 31 ed <48> 8b 04 ef 48 85 c0 74 2f 48 8b 78 20 e8 66 58 91 e5 48 8b 83 20 [ 320.417183] RSP: 0018:ff7322212903fdb8 EFLAGS: 00010246 [ 320.417205] RAX: 0000000000000000 RBX: ff4463de40300000 RCX: ff7322212903fd4c [ 320.417228] RDX: 0000000000000001 RSI: ffffffffa7f7d100 RDI: 0000000000000000 [ 320.417250] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 320.417272] R10: 0000000000000001 R11: ff4463de3a638f58 R12: ff4463be89ac7000 [ 320.417294] R13: ff4463be89ac7198 R14: ff4463be94fc7198 R15: ffffffffc0f10f20 [ 320.417317] FS: 00007f963c0e6740(0000) GS:ff4463fdd65d8000(0000) knlGS:0000000000000000 [ 320.417342] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 320.417362] CR2: 0000000000000000 CR3: 00000020ba674002 CR4: 0000000000773ef0 [ 320.417385] PKRU: 55555554 [ 320.417398] Call Trace: [ 320.417412] <TASK> [ 320.417429] pci_device_remove+0x42/0xb0 [ 320.417459] device_release_driver_internal+0x1a9/0x210 [ 320.417492] driver_detach+0x4b/0x90 [ 320.417516] bus_remove_driver+0x70/0x100 [ 320.417539] pci_unregister_driver+0x2e/0xb0 [ 320.417564] __do_sys_delete_module.constprop.0+0x190/0x2f0 [ 320.417592] ? kmem_cache_free+0x31e/0x550 [ 320.417619] ? lockdep_hardirqs_on_prepare+0xde/0x190 [ 320.417644] ? do_syscall_64+0x38/0x6b0 [ 320.417665] do_syscall_64+0xc8/0x6b0 [ 320.417683] ? clear_bhb_loop+0x30/0x80 [ 320.417706] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 320.417727] RIP: 0033:0x7f963bb30beb Fixes: 0fe45467a104 ("idpf: add create vport and netdev configuration") Reviewed-by: Madhu Chittim <madhu.chittim@intel.com> Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Samuel Salin <Samuel.salin@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://patch.msgid.link/20260717185340.3595286-13-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23ice: reject out-of-range ptype in ice_parser_profile_initAleksandr Loktionov
set_bit(rslt->ptype, prof->ptypes) operates on a DECLARE_BITMAP of ICE_FLOW_PTYPE_MAX (1024) bits. Nothing prevents a malicious VF from providing ptype >= 1024 through VIRTCHNL, resulting in a write past the end of the bitmap and a kernel page fault. Reproduced with a custom kernel module injecting a crafted VIRTCHNL_OP_ADD_RSS_CFG on E810-C QSFP (8086:1592), FW 4.91 0x800214af 1.3909.0, ICE COMMS DDP 1.3.53.0, kernel 7.1.0-rc1. crash_parser: ice_parser_profile_init @ ffffffffc0d61b60 crash_parser: setting ptype=0xffff (max valid=1023) crash_parser: calling ice_parser_profile_init -- expect OOB crash! BUG: kernel NULL pointer dereference, address: 0000000000000000 Oops: Oops: 0002 [#1] SMP NOPTI CPU: 56 UID: 0 PID: 165011 Comm: insmod Kdump: loaded Tainted: G S U OE 7.1.0-rc1 #1 Hardware name: Intel Corporation S2600BPB/S2600BPB RIP: 0010:ice_parser_profile_init+0x2d/0x1d0 [ice] Call Trace: <TASK> ? __pfx_ice_parser_profile_init+0x10/0x10 [ice] crash_init+0x127/0xff0 [crash_parser] do_one_initcall+0x45/0x310 do_init_module+0x64/0x270 init_module_from_file+0xcc/0xf0 idempotent_init_module+0x17b/0x280 __x64_sys_finit_module+0x6e/0xe0 Bail out early with -EINVAL when ptype is out of range. Fixes: e312b3a1e209 ("ice: add API for parser profile initialization") Cc: stable@vger.kernel.org Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Marcin Szycik <marcin.szycik@linux.intel.com> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://patch.msgid.link/20260717185340.3595286-12-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23ice: prevent tstamp ring allocation for non-PF VSI typesPaul Greenwalt
The pf->txtime_txqs bitmap tracks which Tx queues have ETF (Earliest TxTime First) offload enabled. This bitmap is indexed by queue number and is set by ice_offload_txtime(), which only operates on PF VSI queues. However, ice_is_txtime_ena() does not check the VSI type before consulting the bitmap. When ETF offload is enabled on PF Tx queue 0, bit 0 is set in pf->txtime_txqs. During a subsequent PCI reset rebuild, the CTRL VSI's Tx queue 0 is reconfigured and ice_is_txtime_ena() is called for that ring. Since it only checks pf->txtime_txqs by queue index without distinguishing VSI type, it finds bit 0 set and returns true, matching the PF VSI's ETF queue, not the CTRL VSI's. This causes ice_vsi_cfg_txq() to spuriously allocate a tstamp_ring for the CTRL VSI ring. Since CTRL VSI rings have no associated netdev, ice_clean_tx_ring() takes an early return at the !netdev check before reaching ice_free_tx_tstamp_ring(), leaking the allocation. Each PCI reset leaks one 64-byte tstamp_ring. Fix this by restricting ice_is_txtime_ena() to return true only for PF VSI rings, since txtime_txqs is only meaningful for PF VSI queues. Fixes: ccde82e90946 ("ice: add E830 Earliest TxTime First Offload support") Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://patch.msgid.link/20260717185340.3595286-11-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23ice: fix PTP Call Trace during PTP releasePaul Greenwalt
If a PF reset occurs when the PTP state is ICE_PTP_UNINIT, then ice_ptp_rebuild() will update the state to ICE_PTP_ERROR. This will result in the following PTP release call trace during driver unload: kernel BUG at lib/list_debug.c:52! ice_ptp_release+0x332/0x3c0 [ice] ice_deinit_features.part.0+0x10e/0x120 [ice] ice_remove+0x100/0x220 [ice] This was observed when passing PF1 through to a VM. ice_ptp_init() fails because ctrl_pf is NULL and sets the state to ICE_PTP_UNINIT. Fix by detecting the ICE_PTP_UNINIT state in ice_ptp_rebuild() and returning without error, preventing the invalid state transition to ICE_PTP_ERROR. The only valid path to ICE_PTP_ERROR is from ICE_PTP_RESETTING after a failed rebuild. Fixes: 8293e4cb2ff5 ("ice: introduce PTP state machine") Cc: stable@vger.kernel.org Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com> Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://patch.msgid.link/20260717185340.3595286-10-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23ice: use READ_ONCE() to access cached PHC timeSergey Temerkhanov
ptp.cached_phc_time is a 64-bit value updated by a periodic work item on one CPU and read locklessly on another. On 32-bit or non-atomic architectures this can result in a torn read. Use READ_ONCE() to enforce a single atomic load. Fixes: 77a781155a65 ("ice: enable receive hardware timestamping") Cc: stable@vger.kernel.org Signed-off-by: Sergey Temerkhanov <sergey.temerkhanov@intel.com> Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://patch.msgid.link/20260717185340.3595286-9-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23ice: fix LAG recipe to profile associationMarcin Szycik
ice_init_lag() associates recipes to profiles, assuming that Link Aggregation-related profiles will always have profile ID lower than 70 (ICE_PROFID_IPV6_GTPU_IPV6_TCP_INNER). This value seems arbitrary and might not always be valid for some versions of DDP package, i.e. LAG profiles may have profile ID greater than 70. This would lead to misconfigured switch and LAG not working properly. Fix it by checking up to maximum profile ID. Fixes: 1e0f9881ef79 ("ice: Flesh out implementation of support for SRIOV on bonded interface") Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Reviewed-by: Dave Ertman <david.m.ertman@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://patch.msgid.link/20260717185340.3595286-7-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23ice: pass the return value of skb_checksum_help()Michal Swiatkowski
skb_checksum_help() can fail. Pass its return value back to the caller. Commonize this software path in goto. Instead of just returning error try calculating software checksum first. There is a check for TSO in checksum_sw_fb. Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://patch.msgid.link/20260717185340.3595286-4-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23ice: allow creating VFs when !CONFIG_ICE_SWITCHDEVVincent Chen
Currently ice_eswitch_attach_vf() is called unconditionally in ice_start_vfs(), which causes VF creation to fail when CONFIG_ICE_SWITCHDEV is not defined. Fix this by adding switchdev mode checks at the call sites before calling ice_eswitch_attach_vf(), consistent with how ice_eswitch_attach_sf() is already handled in ice_devlink_port_new(). This is similar to commit aacca7a83b97 ("ice: allow creating VFs for !CONFIG_NET_SWITCHDEV") which fixed the same issue for the previous ice_eswitch_configure() API. Fixes: 415db8399d06 ("ice: make representor code generic") Signed-off-by: Vincent Chen <vincent.chen@sifive.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Rafal Romanowski <rafal.romanowski@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Link: https://patch.msgid.link/20260717185340.3595286-2-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23octeontx2-pf: tc: fix egress ratelimitingHariprasad Kelam
The egress rate calculation computes an incorrect mantissa and exponent, causing up to ~50% deviation from the configured rate at lower speeds. Rework the computation to follow the hardware rate formula: rate = 2 * (1 + mantissa/256) * 2^exp / (1 << div_exp) Keep div_exp = 0 and derive exp and mantissa from half of the requested rate. Rates below 2 Mbps are floored to the smallest encodable step (exp = 0, mantissa = 0). Fixes: e638a83f167e ("octeontx2-pf: TC_MATCHALL egress ratelimiting offload") Signed-off-by: Hariprasad Kelam <hkelam@marvell.com> Signed-off-by: Nitin Shetty J <nshettyj@marvell.com> Link: https://patch.msgid.link/20260717084349.2227796-1-nshettyj@marvell.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23net/mlx5e: Reject unsupported CB Shaper TSA in ETS validationAlexei Lazar
Credit Based (CB) TSA is not supported by the mlx5 driver, so reject any configurations that specify it. Fixes: 08fb1dacdd76 ("net/mlx5e: Support DCBNL IEEE ETS") Signed-off-by: Alexei Lazar <alazar@nvidia.com> Reviewed-by: Carolina Jubran <cjubran@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Link: https://patch.msgid.link/20260717075125.1244877-3-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23net/mlx5e: Report zero bandwidth for non-ETS traffic classesAlexei Lazar
The IEEE 802.1Qaz standard defines that bandwidth allocation percentages only apply to Enhanced Transmission Selection (ETS) traffic classes. For STRICT and VENDOR transmission selection algorithms, bandwidth percentage values are not applicable. Currently for non-ETS 100 bandwidth is being reported for all traffic classes in the get operation due to hardware limitation, regardless of their TSA type. Fix this by reporting 0 for non-ETS traffic classes. Fixes: 820c2c5e773d ("net/mlx5e: Read ETS settings directly from firmware") Signed-off-by: Alexei Lazar <alazar@nvidia.com> Reviewed-by: Carolina Jubran <cjubran@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com> Link: https://patch.msgid.link/20260717075125.1244877-2-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23net: pcs: xpcs: fix SGMII state readingCoia Prant
Commit 2a22b7ae2fa3 ("net: pcs: xpcs: adapt Wangxun NICs for SGMII mode") added a path in xpcs_get_state_c37_sgmii() that reads speed/duplex from BMCR after AN completes. However, BMCR does not reflect the negotiated result on the hardware where this has been tested: - On RK3568 (MAC side SGMII), BMCR returns a fixed hardware reset value - Wangxun engineer Jiawen Wu confirmed that on their side, "BMCR looks like it only wants to be return as 0" [0] The correct information is available in CL37_ANSGM_STS, which contains the actual link status and negotiated speed/duplex. This bug was previously masked by phylink core, which overrides the PCS link state with the PHY state when a PHY is present: /* If we have a phy, the "up" state is the union of both the * PHY and the MAC */ if (phy) link_state.link &= pl->phy_state.link; Thus, when the link is down, the PHY's link_down state is applied on top of whatever the PCS reports, hiding the broken PCS state reading path. Modify xpcs_get_state_c37_sgmii() to: 1. Read link state from CL37_ANSGM_STS 2. If link is up, report speed/duplex from CL37_ANSGM_STS 3. Remove the broken BMCR reading path entirely Also properly set state->an_complete to reflect the AN completion status, and clear CL37_ANCMPLT_INTR when link is down to avoid stale state. [0] https://lore.kernel.org/all/000c01dd1593$2ac0b0f0$804212d0$@trustnetic.com/ Fixes: 2a22b7ae2fa3 ("net: pcs: xpcs: adapt Wangxun NICs for SGMII mode") Cc: stable@vger.kernel.org Tested-by: Jiawen Wu <jiawenwu@trustnetic.com> Signed-off-by: Coia Prant <coiaprant@gmail.com> Tested-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Link: https://patch.msgid.link/20260717074324.3250043-2-coiaprant@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23net/mlx5: E-Switch, fix zero num_dest in prio_tag egress vlan ruleYael Chemla
esw_egress_acl_vlan_create() hardcodes num_dest=0 in its mlx5_add_flow_rules() call. When invoked from the non-bond path fwd_dest is NULL and num_dest=0 is correct. When invoked from esw_acl_egress_ofld_rules_create() during a bond event, fwd_dest is non-NULL and flow_act.action carries MLX5_FLOW_CONTEXT_ACTION_FWD_DEST, but _mlx5_add_flow_rules() rejects a non-NULL dest pointer paired with dest_num<=0 and returns -EINVAL. The error propagates as "configure slave vport egress fwd, err(-22)". The passive vport's egress ACL table ends up with its flow groups allocated but no FTEs, so prio-tagged packets are not popped and bond failover is broken on prio_tag_required devices. Fix by passing fwd_dest ? 1 : 0 as num_dest to match the actual number of destinations supplied. Fixes: bf773dc0e6d5 ("net/mlx5: E-Switch, Introduce APIs to enable egress acl forward-to-vport rule") Signed-off-by: Yael Chemla <ychemla@nvidia.com> Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/20260717073306.1242399-1-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23net/mlx5: Fix MCIA register buffer overflow on 32 dword readsGal Pressman
The MCIA register can return up to 32 dwords (128 bytes) when the device advertises the mcia_32dwords capability, but struct mlx5_ifc_mcia_reg_bits only defines dword_0..11, leaving room for just 12 dwords (48 bytes) of data. mlx5_query_mcia() clamps the read size to mlx5_mcia_max_bytes() and then memcpy()s that many bytes out of the register, potentially reading past the end of the 'out' buffer. On kernels built with FORTIFY_SOURCE this is caught as a buffer overflow while reading the module EEPROM via ethtool: detected buffer overflow in memcpy kernel BUG at lib/string_helpers.c:1048! RIP: 0010:fortify_panic+0x13/0x20 Call Trace: mlx5_query_mcia.isra.0+0x200/0x210 [mlx5_core] mlx5_query_module_eeprom_by_page+0x4a/0xa0 [mlx5_core] mlx5e_get_module_eeprom_by_page+0xbb/0x120 [mlx5_core] eeprom_prepare_data+0xf3/0x170 ethnl_default_doit+0xf1/0x3b0 Extend the mcia_reg layout to 32 dwords. Fixes: 271907ee2f29 ("net/mlx5: Query the maximum MCIA register read size from firmware") Signed-off-by: Gal Pressman <gal@nvidia.com> Reviewed-by: Alex Lazar <alazar@nvidia.com> Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Link: https://patch.msgid.link/20260717072338.1240582-1-tariqt@nvidia.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23geneve: require CAP_NET_ADMIN in the device netns for changelinkDoruk Tan Ozturk
A tunnel changelink() operates on at most two netns, dev_net(dev) and the sticky underlay netns geneve->net. They differ once the device is created in or moved to a netns other than the one the request runs in. The rtnl changelink path checks CAP_NET_ADMIN only against dev_net(dev), so a caller privileged there but not in geneve->net can rewrite a geneve device whose underlay lives in geneve->net. geneve_changelink() applies the new configuration against geneve->net: geneve_link_config() and the geneve_quiesce()/geneve_unquiesce() pair reopen the underlay sockets in that netns (geneve_sock_add() uses geneve->net), so the same reasoning as the tunnel changelink series applies here. Gate geneve_changelink() with rtnl_dev_link_net_capable(), at the top of the op before any attribute is parsed, matching ipgre_changelink() and the rest of the "require CAP_NET_ADMIN in the device netns for changelink" series. Found by 0sec automated security-research tooling (https://0sec.ai). Fixes: 5b861f6baa3a ("geneve: add rtnl changelink support") Cc: stable@vger.kernel.org Signed-off-by: Doruk Tan Ozturk <doruk@0sec.ai> Reviewed-by: Fernando Fernandez Mancera <fmancera@suse.de> Link: https://patch.msgid.link/20260716203500.70573-3-doruk@0sec.ai Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23vxlan: require CAP_NET_ADMIN in the device netns for changelinkDoruk Tan Ozturk
A tunnel changelink() operates on at most two netns, dev_net(dev) and the sticky underlay netns vxlan->net. They differ once the device is created in or moved to a netns other than the one the request runs in. The rtnl changelink path checks CAP_NET_ADMIN only against dev_net(dev), so a caller privileged there but not in vxlan->net can rewrite a vxlan device whose underlay lives in vxlan->net. vxlan_changelink() validates and applies the new configuration against vxlan->net (vxlan_config_validate(vxlan->net, ...)) and can reopen the underlay socket in that netns, so the same reasoning as the tunnel changelink series applies here. Gate vxlan_changelink() with rtnl_dev_link_net_capable(), at the top of the op before any attribute is parsed, matching ipgre_changelink() and the rest of the "require CAP_NET_ADMIN in the device netns for changelink" series. Found by 0sec automated security-research tooling (https://0sec.ai). Fixes: 8bcdc4f3a20b ("vxlan: add changelink support") Cc: stable@vger.kernel.org Signed-off-by: Doruk Tan Ozturk <doruk@0sec.ai> Reviewed-by: Fernando Fernandez Mancera <fmancera@suse.de> Link: https://patch.msgid.link/20260716203500.70573-2-doruk@0sec.ai Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23hinic: remove unused ethtool RSS user configuration buffersChenguang Zhao
rss_indir_user and rss_hkey_user are allocated and filled in __set_rss_rxfh() when the user configures RSS via ethtool, but nothing ever reads them. hinic_get_rxfh() fetches the state from the device, and the hardware is programmed from the original indir/key arguments. These buffers only leaked on driver unload. Drop the unused allocations, memcpys, and struct fields. Fixes: 4fdc51bb4e92 ("hinic: add support for rss parameters with ethtool") Signed-off-by: Chenguang Zhao <zhaochenguang@kylinos.cn> Reviewed-by: Joe Damato <joe@dama.to> Link: https://patch.msgid.link/20260722025353.328179-1-chenguang.zhao@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23pppoe: reload header pointer after dev_hard_header()Asim Viladi Oglu Manizada
pppoe_sendmsg() saves a pointer to the PPPoE header before calling dev_hard_header(). Device header callbacks are allowed to reallocate the skb head, invalidating pointers into it. This can happen when a send is blocked in copy_from_user() while the first non-Ethernet port is added to an empty team device. The team's delegated GRE header callback then expands the skb head. PPPoE subsequently writes six bytes through the stale pointer into the freed head. Reload the PPPoE header through the skb's network-header offset after device header creation. pskb_expand_head() updates that offset when it relocates the head. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable@vger.kernel.org Signed-off-by: Asim Viladi Oglu Manizada <manizada@pm.me> Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Reviewed-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20260722093814.3017176-1-manizada@pm.me Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23ppp: annotate data races in ppp_genericEric Dumazet
Several fields in struct ppp can be read or updated concurrently from multiple CPUs without synchronization, causing data races: 1. ppp->mru is read concurrently in ppp_receive_nonmp_frame() while being updated via PPPIOCSMRU ioctl. Protect ppp->mru updates in PPPIOCSMRU with ppp_recv_lock(ppp). 2. PPPIOCGFLAGS reads ppp->flags, ppp->xstate, and ppp->rstate unlocked. Wrap the read in ppp_lock(ppp) to get a consistent snapshot. 3. ppp->debug is updated via PPPIOCSDEBUG and read concurrently on fast paths. Annotate reads with READ_ONCE() and writes with WRITE_ONCE(). 4. ppp->last_xmit and ppp->last_recv are updated on TX/RX data paths and read via PPPIOCGIDLE32 / PPPIOCGIDLE64 ioctls. Annotate with WRITE_ONCE() / READ_ONCE() and use max() to handle jiffies subtraction. 5. ppp->npmode[] is updated via PPPIOCSNPMODE and read on TX/RX paths. Annotate with WRITE_ONCE() / READ_ONCE(). Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Qingfang Deng <qingfang.deng@linux.dev> Link: https://patch.msgid.link/20260722101605.2868548-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23amt: fix use-after-free in AMT delayed worksShihuang Liu
When an AMT device is removed, pending delayed works can still access the freed amt_dev structure, which may result in kernel crashes or memory corruption. amt_dev_stop() cancels req_wq and discovery_wq with cancel_delayed_work_sync(), but these works can be scheduled again from event_wq after the cancellation. This allows delayed works to access the freed amt_dev structure after the netdev has been released. The following is a simple race scenario: CPU0 CPU1 amt_dev_stop() cancel_delayed_work_sync() amt_event_work() mod_delayed_work(req_wq) free netdev req_wq accesses freed amt_dev Use disable_delayed_work_sync() in amt_dev_stop() to prevent req_wq and discovery_wq from being queued again and wait for running work items to complete. The delayed works are disabled after initialization in amt_newlink() and enabled only when the device is successfully opened. This keeps the delayed work lifecycle synchronized with the lifetime of the AMT device. Fixes: cbc21dc1cfe9 ("amt: add data plane of amt interface") Cc: stable@vger.kernel.org Signed-off-by: Shihuang Liu <shlomojune6@gmail.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Taehee Yoo <ap420073@gmail.com> Link: https://patch.msgid.link/20260722113919.7723-1-shlomojune6@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-23mctp: serial: handle zero-length frames to prevent rx buffer overflowDoruk Tan Ozturk
The MCTP serial receive state machine reads a frame length byte in mctp_serial_push_header() case 2 and validates it upper-bound-only: if (c > MCTP_SERIAL_FRAME_MTU) { dev->rxstate = STATE_ERR; } else { dev->rxlen = c; dev->rxpos = 0; dev->rxstate = STATE_DATA; ... } A length of zero passes this check, so rxlen is set to 0 and the state machine advances to STATE_DATA. In mctp_serial_push() STATE_DATA, the incoming byte is stored and rxpos incremented before the terminator is tested: dev->rxbuf[dev->rxpos] = c; dev->rxpos++; dev->rxstate = STATE_DATA; if (dev->rxpos == dev->rxlen) { dev->rxpos = 0; dev->rxstate = STATE_TRAILER; } With rxlen == 0 the "rxpos == rxlen" terminator can never fire (rxpos is already 1 on the first data byte), so subsequent bytes are written past the end of the fixed 74-byte rxbuf, which is the last member of the netdev private area. Every following data byte is an attacker-controlled 1-byte out-of-bounds heap write, and the overflow continues until a frame (0x7e) or escape byte resets the parser -- effectively unbounded. Reaching this requires CAP_NET_ADMIN to attach the N_MCTP line discipline and bring the resulting mctpserialN netdev up, after which the bytes arrive via the tty receive path. Route a zero-length frame straight to STATE_TRAILER instead of STATE_DATA. The trailer/framing bytes are still consumed, and the frame resolves to a zero-length skb that the MCTP core rejects; the parser never enters STATE_DATA with rxlen == 0, so the out-of-bounds write can no longer occur. KASAN, on a frame of 0x7e 0x01 0x00 followed by data bytes (before this change): UBSAN: array-index-out-of-bounds in drivers/net/mctp/mctp-serial.c:370 index 74 is out of range for type 'u8 [74]' BUG: KASAN: slab-out-of-bounds in mctp_serial_tty_receive_buf Write of size 1 at addr ... by task kworker/u16:0 mctp_serial_tty_receive_buf tty_ldisc_receive_buf flush_to_ldisc Allocated by task 152: alloc_netdev_mqs mctp_serial_open v2: route zero-length frames to STATE_TRAILER instead of STATE_ERR so the trailer/framing bytes are still consumed (Jeremy Kerr). Found by 0sec automated security-research tooling (https://0sec.ai). Fixes: a0c2ccd9b5ad ("mctp: Add MCTP-over-serial transport binding") Cc: stable@vger.kernel.org Suggested-by: Jeremy Kerr <jk@codeconstruct.com.au> Assisted-by: 0sec:multi-model Signed-off-by: Doruk Tan Ozturk <doruk@0sec.ai> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20260715082021.46315-1-doruk@0sec.ai Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-07-23octeontx2-vf: set TC flower flag on MCAM entry allocationSuman Ghosh
When MCAM entries are allocated for a VF netdev via the devlink mcam_count parameter, only OTX2_FLAG_NTUPLE_SUPPORT was set. That enabled ethtool ntuple filters but not tc flower offload. Also set OTX2_FLAG_TC_FLOWER_SUPPORT when entries are successfully allocated. Fixes: 2da489432747 ("octeontx2-pf: devlink params support to set mcam entry count") Signed-off-by: Suman Ghosh <sumang@marvell.com> Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20260715052007.2099851-1-rkannoth@marvell.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-07-23octeontx2-af: return VWQE timer delay in NIX HW infoShijith Thotton
Update the NIX_GET_HW_INFO mailbox message to return the VWQE timer delay, which is used for vector packet wait time calculation. Repurpose the existing rsvs16 reserved field in struct nix_hw_info to vwqe_delay and populate it by reading the NIX_AF_VWQE_TIMER register (applicable for non-OTX2 silicon). Signed-off-by: Shijith Thotton <sthotton@marvell.com> Signed-off-by: Nitin Shetty J <nshettyj@marvell.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20260715073112.622662-1-nshettyj@marvell.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-07-23net: stmmac: enable the MAC on link up for all supported speedsvadik likholetov
stmmac_mac_link_down() clears the MAC's transmit and receive enable bits. stmmac_mac_link_up() is expected to set them again through stmmac_mac_set(..., true), but it first switches on the negotiated speed and returns early for a speed the switch does not list. The MAC is then left gated off. The speed selection is split into three switches, keyed on the interface. The generic branch -- taken for everything that is neither USXGMII nor XLGMII, so including PHY_INTERFACE_MODE_10GBASER -- lists only SPEED_2500, SPEED_1000, SPEED_100 and SPEED_10. MGBE on Tegra234 runs 10GBASE-R into an Aquantia AQR113C. That PHY does rate matching, so phylink_link_up() replaces the media speed with the MAC-side interface speed before calling into the MAC: case RATE_MATCH_PAUSE: speed = phylink_interface_max_speed(link_state.interface); duplex = DUPLEX_FULL; The driver is therefore called as stmmac_mac_link_up(interface=10GBASER, speed=10000, duplex=1) which falls through to "default: return;". The interface stops passing traffic after the first link flap. The failure is easy to misread. The link still comes up, because the PHY is polled over MDIO and needs no MAC, so the interface reports carrier 1 at the media speed. The DMA is untouched, so its start bits stay set and descriptors are still consumed. Only the MAC itself is gated off: the receiver counts nothing (mmc_rx_framecount_gb stops advancing, RE is 0) and nothing reaches the wire (TE is 0). The interface survives boot only because stmmac_hw_setup(), called from ndo_open, enables the MAC unconditionally -- so the problem appears only once the cable has been unplugged and plugged back in, and "ip link set dev <ethX> down && ip link set dev <ethX> up" appears to fix it. The interface is not what the speed bits depend on: with the single exception of 2.5G, which is selected through the XGMII block on USXGMII and through the regular speed bits otherwise, each speed maps to one field of struct mac_link. The per-interface switches are speed validation, and phylink already validates the speed against priv->hw->link.caps. So collapse the three switches into one keyed on the speed alone, keeping the interface test only for the 2.5G case. This covers 10G on 10GBASE-R, and equally 5G, and 1G/100/10 on USXGMII, all of which hit "default: return;" today. A core that does not support a speed leaves the corresponding mac_link field at 0, and phylink will not offer it that speed in the first place. For dwxgmac2 at 10G, link.xgmii.speed10000 is XGMAC_CONFIG_SS_10000, which is 0 and is the correct speed selection for a 10GBASE-R MAC: ctrl then equals old_ctrl, the register write is skipped, and execution reaches stmmac_mac_set(..., true). Log an error in the default case, since a speed with no entry here leaves the MAC disabled and the symptom does not point at the cause. Fixes: d8ca113724e7 ("net: stmmac: tegra: Add MGBE support") Suggested-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by: vadik likholetov <vadikas@gmail.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Link: https://patch.msgid.link/20260713074911.30090-1-vadikas@gmail.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-07-23net: stmmac: reset residual action in L3L4 filters on deleteNazim Amirul
When deleting an L3/L4 flower filter entry, the action field is not reset. If a filter was previously configured with a drop action, that action may persist and affect subsequent filter configurations unintentionally. Clear the action field when the filter entry is deleted. Fixes: 425eabddaf0f ("net: stmmac: Implement L3/L4 Filters using TC Flower") Signed-off-by: Rohan G Thomas <rohan.g.thomas@altera.com> Signed-off-by: Nazim Amirul <muhammad.nazim.amirul.nazle.asmade@altera.com> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Link: https://patch.msgid.link/20260714023716.29865-5-muhammad.nazim.amirul.nazle.asmade@altera.com Reviewed-by: Jakub Raczynski <j.raczynski@samsung.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-07-23net: stmmac: fix l3l4 filter rejecting unsupported offload requestsNazim Amirul
The basic flow parser in tc_add_basic_flow() does not validate match keys before proceeding. Unsupported offload configurations such as partial protocol masks, non-IPv4 network proto, or non-TCP/UDP transport proto are silently accepted instead of returning -EOPNOTSUPP. Add validation to return -EOPNOTSUPP early for: - No network or transport proto present in the key - Partial protocol mask (only full mask supported) - Network proto is not IPv4 - Transport proto is not TCP or UDP Each rejection includes an extack message so the user knows which part of the match is unsupported. Also propagate -EOPNOTSUPP from tc_add_basic_flow() in tc_add_flow() by returning it directly rather than using break. The break was silently discarding the error for FLOW_CLS_REPLACE operations where entry->in_use is already true, causing tc_add_flow() to return 0 (success) for unsupported replace requests. Fixes: 425eabddaf0f ("net: stmmac: Implement L3/L4 Filters using TC Flower") Signed-off-by: Rohan G Thomas <rohan.g.thomas@altera.com> Signed-off-by: Nazim Amirul <muhammad.nazim.amirul.nazle.asmade@altera.com> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Link: https://patch.msgid.link/20260714023716.29865-4-muhammad.nazim.amirul.nazle.asmade@altera.com Reviewed-by: Jakub Raczynski <j.raczynski@samsung.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-07-23net: stmmac: xgmac: fix l4 filter port overwrite on register updateNazim Amirul
The XGMAC_L4_ADDR register holds both source and destination port match values. The current implementation overwrites the entire register when configuring either port, so setting one silently erases the other. Fix this by reading the register first, then masking and updating only the relevant field before writing back. Fixes: 425eabddaf0f ("net: stmmac: Implement L3/L4 Filters using TC Flower") Signed-off-by: Rohan G Thomas <rohan.g.thomas@altera.com> Signed-off-by: Nazim Amirul <muhammad.nazim.amirul.nazle.asmade@altera.com> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Link: https://patch.msgid.link/20260714023716.29865-3-muhammad.nazim.amirul.nazle.asmade@altera.com Reviewed-by: Jakub Raczynski <j.raczynski@samsung.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-07-22net: sxgbe: fix null pointer dereference in probe error pathChenguang Zhao
The platform drvdata is not set until all IRQs have been mapped, so the local net_device pointer is NULL when IRQ mapping fails. Remove the device allocated by sxgbe_drv_probe() through priv instead. Cc: stable+noautosel@kernel.org # untested fix to unlikely driver error path Signed-off-by: Chenguang Zhao <zhaochenguang@kylinos.cn> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20260717091423.1557737-1-chenguang.zhao@linux.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-22net: phy: motorcomm: Enable optional clock for YT8531Yanan He
Some boards feed the YT8531 PHY from an SoC-provided external reference clock described by the common ethernet-phy "clocks" property. Enable the optional PHY clock during probe so boards can model this clock as a PHY input instead of keeping the clock alive from the MAC driver. This is needed on the Alientek DLRV1126, where the PHY reference clock is provided by CLK_GMAC_ETHERNET_OUT. Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Yanan He <grumpycat921013@gmail.com> Link: https://patch.msgid.link/20260714-motorcomm-yt8531-clk-v3-1-10dc303ef1a5@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-22net: mdio: Kconfig: Group mdio multiplexers in a submenuMaxime Chevallier
Move all MDIO muxes under the "MDIO controller drivers" submenu. This doesn't change any dependency for KConfig options and is purely cosmetic. Suggested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20260715082226.51481-3-maxime.chevallier@bootlin.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-22net: mdio: Kconfig: Group mdio controller drivers in a submenuMaxime Chevallier
Currently, all inidivual drivers for MDIO bus controllers are directly listed under Device drivers -> Network device support. Let's group them altogether in a submenu, while keeping the dependency on PHYLIB. No intended functional change besides the menuconfig ordering. Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20260715082226.51481-2-maxime.chevallier@bootlin.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-22net: dsa: mt7530: add EN7528 supportAhmed Naseef
The EcoNet EN7528 SoC integrates an MT7530 switch (the chip revision register reads 0x7530), memory-mapped in the SoC register space and reached through the same MMIO glue used for the built-in switches of the MediaTek MT7988 and Airoha EN7581/AN7583 SoCs. Its reset sequence and its PHY indirect access registers are the same as on those switches, so add an ID_EN7528 variant bound with the "econet,en7528-switch" compatible, reusing mt7988_setup() and the indirect PHY accessors. The switch core, however, is an MT7530 and not an MT7531 derivative: the CPU port to trap frames to is set through the MT7530-style CPU_EN / CPU_PORT fields of the MFC register rather than the MT7531 CFC register, so add it to the MT7530 handling in mt753x_conduit_state_change(). For the same reason the MT7530 mirror and force-mode register layouts already apply to it as the default of the MT753X_*() macros. The four user ports (1-4) are connected to integrated Gigabit PHYs at MDIO addresses 9-12 of the switch internal MDIO bus. The CPU port (port 6) is connected to the SoC Ethernet MAC at a fixed 1000 Mbps full duplex link, so the port capabilities cannot be shared with the MT7988 and EN7581 switches, whose CPU ports run at 10 Gbps. The LAN GPHYs advertise EEE by default, but negotiating EEE with some link partners results in an unstable link with dropped frames. Leave the LPI capabilities empty for the EN7528 so that phylink disables EEE on these PHYs and refuses to enable it from userspace. Signed-off-by: Ahmed Naseef <naseefkm@gmail.com> Link: https://patch.msgid.link/8c7dfabd860ab0a6dd771c2bac7b7599eb369a4f.1783770059.git.naseefkm@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-22vmxnet3: fix BUG_ON in vmxnet3_get_hdr_len() for Geneve packetsHarshaka Narayana
vmxnet3_get_hdr_len() assumes gdesc->rcd.v4/v6/tcp always describe the outer header, but for a Geneve-encapsulated packet the device can set them based on the inner header instead, signalled by the VMXNET3_RCD_HDR_INNER_SHIFT bit in the completion descriptor. Since the function never skips the outer encapsulation, this mismatch triggers: - BUG_ON(hdr.ipv4->protocol != IPPROTO_TCP), because the outer protocol is UDP (Geneve), not TCP. - BUG_ON(hdr.eth->h_proto != ...), when the tunnel's outer and inner IP versions differ (e.g. outer IPv6/inner IPv4 or vice versa). Check VMXNET3_RCD_HDR_INNER_SHIFT up front and bail out, since the function cannot locate the inner header it would need to parse. Also convert the remaining BUG_ON()s in this function to return 0 defensively. Fixes: 45dac1d6ea04 ("vmxnet3: Changes for vmxnet3 adapter version 2 (fwd)") Signed-off-by: Harshaka Narayana <harshaka.narayana@broadcom.com> Reviewed-by: Ronak Doshi <ronak.doshi@broadcom.com> Reviewed-by: Sankararaman Jayaraman <sankararaman.jayaraman@broadcom.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20260713140915.3381715-1-harshaka.narayana@broadcom.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-22vxlan: mdb: Fix source list corruption on a failed replaceJames Raphael Tiovalen
When replacing the source list of an MDB remote entry, all existing sources are first marked for deletion and vxlan_mdb_remote_srcs_add() is then called to add the new source list. Sources present in the new list have their deletion mark cleared, and any sources left marked afterwards are removed. If vxlan_mdb_remote_srcs_add() fails partway through, its error path deletes all entries on the remote's source list. That rollback is only correct for its other caller, vxlan_mdb_remote_add(), where the remote was just allocated and the list contains solely entries added during the call. On the replace path the list also holds pre-existing sources, so a failed replace tears them down together with their (S, G) forwarding entries instead of leaving the entry unchanged. This is reachable from an existing (*, G) remote. An EXCLUDE filter that loses sources starts forwarding traffic that should be blocked, while an INCLUDE filter that loses sources drops traffic that should be forwarded. Mark entries created during the current pass with a new VXLAN_SGRP_F_NEW flag. On failure, delete only those entries and clear the deletion mark on the pre-existing ones, so a failed replace leaves the source list untouched. Retain the flag until the whole operation succeeds and then clear it. Also stop vxlan_mdb_remote_src_add() from deleting a pre-existing entry it only looked up when adding that entry's forwarding entry fails. Fixes: a3a48de5eade ("vxlan: mdb: Add MDB control path support") Cc: stable@vger.kernel.org Signed-off-by: James Raphael Tiovalen <jamestiotio@gmail.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Antoine Tenart <atenart@kernel.org> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Link: https://patch.msgid.link/20260720160428.249356-1-jamestiotio@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-22net: stmmac: dwmac4: mask interrupts when stopping DMA in suspendLuis Lang
Since commit 1b9707e6f1a9 ("net: stmmac: enable RPS and RBU interrupts"), suspending causes an interrupt storm from the RPS interrupt. Fix this by adding a deinit_chan() op to stmmac_dma_ops, which masks all default dma channel interrupts. This is called from stmmac_stop_all_dma(), so interrupts don't trigger while suspending. Fixes: 1b9707e6f1a9 ("net: stmmac: enable RPS and RBU interrupts") Suggested-by: Andrew Lunn <andrew@lunn.ch> Suggested-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by: Luis Lang <luis.la@mail.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Link: https://patch.msgid.link/20260720111534.163416-1-luis.la@mail.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-22net: dpaa: fix mode settingMichael Walle
Before converting to the phylink interface, the init function would have set a non-reserved I/F mode in the maccfg2 register. After converting to phylink, 0 is written as mode, which is a reserved value (although it's the hardware default). Without a valid mode, a SGMII link is never established between the MAC and the PHY and thus .link_up() is never called which could set the correct mode according to the actual speed. Fix it by setting the maximum speed of the phy_interface_t in use in .mac_config() - just like the driver did before the phylink conversion. Fixes: 5d93cfcf7360 ("net: dpaa: Convert to phylink") Suggested-by: Sean Anderson <sean.anderson@linux.dev> Signed-off-by: Michael Walle <mwalle@kernel.org> Reviewed-by: Sean Anderson <sean.anderson@linux.dev> Reviewed-by: Sean Anderson <sean.anderson@linux.dev> Link: https://patch.msgid.link/20260717132401.2653252-1-mwalle@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-22geneve: fix geneve_config leak on register_netdevice() failureEric Dumazet
When geneve_configure() allocates a new geneve_config structure via geneve_config_alloc() and assigns it to geneve->cfg before calling register_netdevice(), if register_netdevice() fails early (for example, in dev_get_valid_name() due to an invalid or duplicate interface name), register_netdevice() exits without calling dev->priv_destructor. The caller (e.g. rtnl_newlink()) subsequently calls free_netdev(), which frees the net_device structure directly via kvfree() because reg_state is NETREG_UNINITIALIZED, bypassing dev->priv_destructor (geneve_free_dev()). As a result, the newly allocated geneve_config and its per-CPU dst_cache are leaked. Fix this by invoking geneve_free_dev(dev) directly on the error path of register_netdevice(). Since geneve_free_dev() sets geneve->cfg to NULL, this call is fully idempotent and safe even if register_netdevice() failed on a later error path that already ran dev->priv_destructor. Fixes: 0ba269933f73 ("geneve: convert config to RCU-protected pointer") Signed-off-by: Eric Dumazet <edumazet@google.com> Link: https://patch.msgid.link/20260721163950.1483019-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-22Merge tag 'ath-next-20260722' of ↵Johannes Berg
git://git.kernel.org/pub/scm/linux/kernel/git/ath/ath Jeff Johnson says: ================== ath.git patches for v7.3 (PR #1) There has been quite a bit of activity across the ath drivers. Significant changes in ath12k include: Align with new Qualcomm generic Peripheral Authentication Service (PAS). Ongoing infrastructure changes to support the QCC2072 platform. Ongoing infrastructure changes to support the IPQ5332 platform. Enhance datapath statistics. Tuning of datapath parameters. In addition, an assortment of cleanups and minor bug fixes across ath6kl, ath10k, ath11k, ath12k, and carl9170. ================== Signed-off-by: Johannes Berg <johannes.berg@intel.com>