linux/drivers/net, branch v6.16

Merge tag 'net-6.16-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2025-07-24T15:44:42Z

Pull networking fixes from Paolo Abeni: "Including fixes from can and xfrm. The TI regression notified last week is actually on our net-next tree, it does not affect 6.16. We are investigating a virtio regression which is quite hard to reproduce - currently only our CI sporadically hits it. Hopefully it should not be critical, and I'm not sure that an additional week would be enough to solve it. Current release - fix to a fix: - sched: sch_qfq: avoid sleeping in atomic context in qfq_delete_class Previous releases - regressions: - xfrm: - set transport header to fix UDP GRO handling - delete x->tunnel as we delete x - eth: - mlx5: fix memory leak in cmd_exec() - i40e: when removing VF MAC filters, avoid losing PF-set MAC - gve: fix stuck TX queue for DQ queue format Previous releases - always broken: - can: fix NULL pointer deref of struct can_priv::do_set_mode - eth: - ice: fix a null pointer dereference in ice_copy_and_init_pkg() - ism: fix concurrency management in ism_cmd() - dpaa2: fix device reference count leak in MAC endpoint handling - icssg-prueth: fix buffer allocation for ICSSG Misc: - selftests: mptcp: increase code coverage" * tag 'net-6.16-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (34 commits) net: hns3: default enable tx bounce buffer when smmu enabled net: hns3: fixed vf get max channels bug net: hns3: disable interrupt when ptp init failed net: hns3: fix concurrent setting vlan filter issue s390/ism: fix concurrency management in ism_cmd() selftests: drv-net: wait for iperf client to stop sending MAINTAINERS: Add in6.h to MAINTAINERS selftests: netfilter: tone-down conntrack clash test can: netlink: can_changelink(): fix NULL pointer deref of struct can_priv::do_set_mode net/sched: sch_qfq: Avoid triggering might_sleep in atomic context in qfq_delete_class gve: Fix stuck TX queue for DQ queue format net: appletalk: Fix use-after-free in AARP proxy probe net: bcmasp: Restore programming of TX map vector register selftests: mptcp: connect: also cover checksum selftests: mptcp: connect: also cover alt modes e1000e: ignore uninitialized checksum word on tgp e1000e: disregard NVM checksum on tgp when valid checksum bit is not set ice: Fix a null pointer dereference in ice_copy_and_init_pkg() i40e: When removing VF MAC filters, only check PF-set MAC i40e: report VF tx_dropped with tx_errors instead of tx_discards ...

net: hns3: default enable tx bounce buffer when smmu enabled

2025-07-24T09:27:22Z

The SMMU engine on HIP09 chip has a hardware issue. SMMU pagetable prefetch features may prefetch and use a invalid PTE even the PTE is valid at that time. This will cause the device trigger fake pagefaults. The solution is to avoid prefetching by adding a SYNC command when smmu mapping a iova. But the performance of nic has a sharp drop. Then we do this workaround, always enable tx bounce buffer, avoid mapping/unmapping on TX path. This issue only affects HNS3, so we always enable tx bounce buffer when smmu enabled to improve performance. Fixes: 295ba232a8c3 ("net: hns3: add device version to replace pci revision") Signed-off-by: Jian Shen Signed-off-by: Jijie Shao Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250722125423.1270673-5-shaojijie@huawei.com Signed-off-by: Paolo Abeni

net: hns3: fixed vf get max channels bug

2025-07-24T09:27:21Z

Currently, the queried maximum of vf channels is the maximum of channels supported by each TC. However, the actual maximum of channels is the maximum of channels supported by the device. Fixes: 849e46077689 ("net: hns3: add ethtool_ops.get_channels support for VF") Signed-off-by: Jian Shen Signed-off-by: Hao Lan Signed-off-by: Jijie Shao Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250722125423.1270673-4-shaojijie@huawei.com Signed-off-by: Paolo Abeni

net: hns3: disable interrupt when ptp init failed

2025-07-24T09:27:21Z

When ptp init failed, we'd better disable the interrupt and clear the flag, to avoid early report interrupt at next probe. Fixes: 0bf5eb788512 ("net: hns3: add support for PTP") Signed-off-by: Yonglong Liu Signed-off-by: Jijie Shao Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250722125423.1270673-3-shaojijie@huawei.com Signed-off-by: Paolo Abeni

net: hns3: fix concurrent setting vlan filter issue

2025-07-24T09:27:21Z

The vport->req_vlan_fltr_en may be changed concurrently by function hclge_sync_vlan_fltr_state() called in periodic work task and function hclge_enable_vport_vlan_filter() called by user configuration. It may cause the user configuration inoperative. Fixes it by protect the vport->req_vlan_fltr by vport_lock. Fixes: 2ba306627f59 ("net: hns3: add support for modify VLAN filter state") Signed-off-by: Jian Shen Signed-off-by: Jijie Shao Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250722125423.1270673-2-shaojijie@huawei.com Signed-off-by: Paolo Abeni

Merge tag 'linux-can-fixes-for-6.16-20250722' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

2025-07-23T01:39:51Z

Marc Kleine-Budde says: ==================== pull-request: can 2025-07-22 The patch is by me and fixes a potential NULL pointer deref in the CAN device driver infrastructure. It can be triggered from user space. * tag 'linux-can-fixes-for-6.16-20250722' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can: can: netlink: can_changelink(): fix NULL pointer deref of struct can_priv::do_set_mode ==================== Link: https://patch.msgid.link/20250722110059.3664104-1-mkl@pengutronix.de Signed-off-by: Jakub Kicinski

Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue

2025-07-23T01:24:10Z

Tony Nguyen says: ==================== Intel Wired LAN Driver Updates 2025-07-21 (i40e, ice, e1000e) For i40e: Dennis Chen adjusts reporting of VF Tx dropped to a more appropriate field. Jamie Bainbridge fixes a check which can cause a PF set VF MAC address to be lost. For ice: Haoxiang Li adds an error check in DDP load to prevent NULL pointer dereference. For e1000e: Jacek Kowalski adds workarounds for issues surrounding Tiger Lake platforms with uninitialized NVMs. * '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue: e1000e: ignore uninitialized checksum word on tgp e1000e: disregard NVM checksum on tgp when valid checksum bit is not set ice: Fix a null pointer dereference in ice_copy_and_init_pkg() i40e: When removing VF MAC filters, only check PF-set MAC i40e: report VF tx_dropped with tx_errors instead of tx_discards ==================== Link: https://patch.msgid.link/20250721173733.2248057-1-anthony.l.nguyen@intel.com Signed-off-by: Jakub Kicinski

can: netlink: can_changelink(): fix NULL pointer deref of struct can_priv::do_set_mode

2025-07-22T10:55:13Z

Andrei Lalaev reported a NULL pointer deref when a CAN device is restarted from Bus Off and the driver does not implement the struct can_priv::do_set_mode callback. There are 2 code path that call struct can_priv::do_set_mode: - directly by a manual restart from the user space, via can_changelink() - delayed automatic restart after bus off (deactivated by default) To prevent the NULL pointer deference, refuse a manual restart or configure the automatic restart delay in can_changelink() and report the error via extack to user space. As an additional safety measure let can_restart() return an error if can_priv::do_set_mode is not set instead of dereferencing it unchecked. Reported-by: Andrei Lalaev Closes: https://lore.kernel.org/all/20250714175520.307467-1-andrey.lalaev@gmail.com Fixes: 39549eef3587 ("can: CAN Network device driver and Netlink interface") Link: https://patch.msgid.link/20250718-fix-nullptr-deref-do_set_mode-v1-1-0b520097bb96@pengutronix.de Signed-off-by: Marc Kleine-Budde

gve: Fix stuck TX queue for DQ queue format

2025-07-22T00:14:12Z

gve_tx_timeout was calculating missed completions in a way that is only relevant in the GQ queue format. Additionally, it was attempting to disable device interrupts, which is not needed in either GQ or DQ queue formats. As a result, TX timeouts with the DQ queue format likely would have triggered early resets without kicking the queue at all. This patch drops the check for pending work altogether and always kicks the queue after validating the queue has not seen a TX timeout too recently. Cc: stable@vger.kernel.org Fixes: 87a7f321bb6a ("gve: Recover from queue stall due to missed IRQ") Co-developed-by: Tim Hostetler Signed-off-by: Tim Hostetler Signed-off-by: Praveen Kaligineedi Signed-off-by: Harshitha Ramamurthy Link: https://patch.msgid.link/20250717192024.1820931-1-hramamurthy@google.com Signed-off-by: Jakub Kicinski

net: bcmasp: Restore programming of TX map vector register

2025-07-21T23:41:36Z

On ASP versions v2.x we need to program the TX map vector register to properly exercise end-to-end flow control, otherwise the TX engine can either lock-up, or cause the hardware calculated checksum to be wrong/corrupted when multiple back to back packets are being submitted for transmission. This register defaults to 0, which means no flow control being applied. Fixes: e9f31435ee7d ("net: bcmasp: Add support for asp-v3.0") Signed-off-by: Florian Fainelli Link: https://patch.msgid.link/20250718212242.3447751-1-florian.fainelli@broadcom.com Signed-off-by: Jakub Kicinski