kernel/linux.git/drivers/bluetooth/btintel_pcie.c, branch linux-7.0.y

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

Merge tag 'net-next-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

2026-02-12T03:31:52+00:00

Pull networking updates from Paolo Abeni: "Core & protocols: - A significant effort all around the stack to guide the compiler to make the right choice when inlining code, to avoid unneeded calls for small helper and stack canary overhead in the fast-path. This generates better and faster code with very small or no text size increases, as in many cases the call generated more code than the actual inlined helper. - Extend AccECN implementation so that is now functionally complete, also allow the user-space enabling it on a per network namespace basis. - Add support for memory providers with large (above 4K) rx buffer. Paired with hw-gro, larger rx buffer sizes reduce the number of buffers traversing the stack, dincreasing single stream CPU usage by up to ~30%. - Do not add HBH header to Big TCP GSO packets. This simplifies the RX path, the TX path and the NIC drivers, and is possible because user-space taps can now interpret correctly such packets without the HBH hint. - Allow IPv6 routes to be configured with a gateway address that is resolved out of a different interface than the one specified, aligning IPv6 to IPv4 behavior. - Multi-queue aware sch_cake. This makes it possible to scale the rate shaper of sch_cake across multiple CPUs, while still enforcing a single global rate on the interface. - Add support for the nbcon (new buffer console) infrastructure to netconsole, enabling lock-free, priority-based console operations that are safer in crash scenarios. - Improve the TCP ipv6 output path to cache the flow information, saving cpu cycles, reducing cache line misses and stack use. - Improve netfilter packet tracker to resolve clashes for most protocols, avoiding unneeded drops on rare occasions. - Add IP6IP6 tunneling acceleration to the flowtable infrastructure. - Reduce tcp socket size by one cache line. - Notify neighbour changes atomically, avoiding inconsistencies between the notification sequence and the actual states sequence. - Add vsock namespace support, allowing complete isolation of vsocks across different network namespaces. - Improve xsk generic performances with cache-alignment-oriented optimizations. - Support netconsole automatic target recovery, allowing netconsole to reestablish targets when underlying low-level interface comes back online. Driver API: - Support for switching the working mode (automatic vs manual) of a DPLL device via netlink. - Introduce PHY ports representation to expose multiple front-facing media ports over a single MAC. - Introduce "rx-polarity" and "tx-polarity" device tree properties, to generalize polarity inversion requirements for differential signaling. - Add helper to create, prepare and enable managed clocks. Device drivers: - Add Huawei hinic3 PF etherner driver. - Add DWMAC glue driver for Motorcomm YT6801 PCIe ethernet controller. - Add ethernet driver for MaxLinear MxL862xx switches - Remove parallel-port Ethernet driver. - Convert existing driver timestamp configuration reporting to hwtstamp_get and remove legacy ioctl(). - Convert existing drivers to .get_rx_ring_count(), simplifing the RX ring count retrieval. Also remove the legacy fallback path. - Ethernet high-speed NICs: - Broadcom (bnxt, bng): - bnxt: add FW interface update to support FEC stats histogram and NVRAM defragmentation - bng: add TSO and H/W GRO support - nVidia/Mellanox (mlx5): - improve latency of channel restart operations, reducing the used H/W resources - add TSO support for UDP over GRE over VLAN - add flow counters support for hardware steering (HWS) rules - use a static memory area to store headers for H/W GRO, leading to 12% RX tput improvement - Intel (100G, ice, idpf): - ice: reorganizes layout of Tx and Rx rings for cacheline locality and utilizes __cacheline_group* macros on the new layouts - ice: introduces Synchronous Ethernet (SyncE) support - Meta (fbnic): - adds debugfs for firmware mailbox and tx/rx rings vectors - Ethernet virtual: - geneve: introduce GRO/GSO support for double UDP encapsulation - Ethernet NICs consumer, and embedded: - Synopsys (stmmac): - some code refactoring and cleanups - RealTek (r8169): - add support for RTL8127ATF (10G Fiber SFP) - add dash and LTR support - Airoha: - AN8811HB 2.5 Gbps phy support - Freescale (fec): - add XDP zero-copy support - Thunderbolt: - add get link setting support to allow bonding - Renesas: - add support for RZ/G3L GBETH SoC - Ethernet switches: - Maxlinear: - support R(G)MII slow rate configuration - add support for Intel GSW150 - Motorcomm (yt921x): - add DCB/QoS support - TI: - icssm-prueth: support bridging (STP/RSTP) via the switchdev framework - Ethernet PHYs: - Realtek: - enable SGMII and 2500Base-X in-band auto-negotiation - simplify and reunify C22/C45 drivers - Micrel: convert bindings to DT schema - CAN: - move skb headroom content into skb extensions, making CAN metadata access more robust - CAN drivers: - rcar_canfd: - add support for FD-only mode - add support for the RZ/T2H SoC - sja1000: cleanup the CAN state handling - WiFi: - implement EPPKE/802.1X over auth frames support - split up drop reasons better, removing generic RX_DROP - additional FTM capabilities: 6 GHz support, supported number of spatial streams and supported number of LTF repetitions - better mac80211 iterators to enumerate resources - initial UHR (Wi-Fi 8) support for cfg80211/mac80211 - WiFi drivers: - Qualcomm/Atheros: - ath11k: support for Channel Frequency Response measurement - ath12k: a significant driver refactor to support multi-wiphy devices and and pave the way for future device support in the same driver (rather than splitting to ath13k) - ath12k: support for the QCC2072 chipset - Intel: - iwlwifi: partial Neighbor Awareness Networking (NAN) support - iwlwifi: initial support for U-NII-9 and IEEE 802.11bn - RealTek (rtw89): - preparations for RTL8922DE support - Bluetooth: - implement setsockopt(BT_PHY) to set the connection packet type/PHY - set link_policy on incoming ACL connections - Bluetooth drivers: - btusb: add support for MediaTek7920, Realtek RTL8761BU and 8851BE - btqca: add WCN6855 firmware priority selection feature" * tag 'net-next-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1254 commits) bnge/bng_re: Add a new HSI net: macb: Fix tx/rx malfunction after phy link down and up af_unix: Fix memleak of newsk in unix_stream_connect(). net: ti: icssg-prueth: Add optional dependency on HSR net: dsa: add basic initial driver for MxL862xx switches net: mdio: add unlocked mdiodev C45 bus accessors net: dsa: add tag format for MxL862xx switches dt-bindings: net: dsa: add MaxLinear MxL862xx selftests: drivers: net: hw: Modify toeplitz.c to poll for packets octeontx2-pf: Unregister devlink on probe failure net: renesas: rswitch: fix forwarding offload statemachine ionic: Rate limit unknown xcvr type messages tcp: inet6_csk_xmit() optimization tcp: populate inet->cork.fl.u.ip6 in tcp_v6_syn_recv_sock() tcp: populate inet->cork.fl.u.ip6 in tcp_v6_connect() ipv6: inet6_csk_xmit() and inet6_csk_update_pmtu() use inet->cork.fl.u.ip6 ipv6: use inet->cork.fl.u.ip6 and np->final in ip6_datagram_dst_update() ipv6: use np->final in inet6_sk_rebuild_header() ipv6: add daddr/final storage in struct ipv6_pinfo net: stmmac: qcom-ethqos: fix qcom_ethqos_serdes_powerup() ...

Bluetooth: btintel_pcie: Use IRQF_ONESHOT and default primary handler

2026-02-01T16:37:14+00:00

There is no added value in btintel_pcie_msix_isr() compared to irq_default_primary_handler(). Using a threaded interrupt without a dedicated primary handler mandates the IRQF_ONESHOT flag to mask the interrupt source while the threaded handler is active. Otherwise the interrupt can fire again before the threaded handler had a chance to run. Use the default primary interrupt handler by specifying NULL and set IRQF_ONESHOT so the interrupt source is masked until the secondary handler is done. Fixes: c2b636b3f788d ("Bluetooth: btintel_pcie: Add support for PCIe transport") Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20260128095540.863589-7-bigeasy@linutronix.de

Bluetooth: btintel_pcie: Remove unnecessary check before kfree_skb()

2026-01-29T18:33:38+00:00

The kfree_skb() function internally checks if the skb is NULL, so an explicit check before calling it is redundant and can be removed. Signed-off-by: Chen Ni Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel_pcie: Introduce HCI Driver protocol

2025-12-01T21:04:51+00:00

This patch adds the infrastructure that allow the user space program to talk to intel pcie driver directly for fetching basic driver details. The changes introduced are referred form commit 04425292a62c15 ("Bluetooth: Introduce HCI Driver protocol") Signed-off-by: Chethan T N Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel_pcie: Suspend/Resume: Controller doorbell interrupt handling

2025-12-01T21:00:07+00:00

Due to a hardware bug during suspend/resume, the controller may miss a doorbell interrupt. To address this, a retry mechanism has been added to inform the controller before reporting a failure. Test case: - run suspend and resume cycles. Signed-off-by: Ravindra Signed-off-by: Kiran K Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel_pcie: Support for S4 (Hibernate)

2025-12-01T21:00:07+00:00

During S4 (hibernate), the Bluetooth device loses power. Upon resume, the driver performs the following actions: 1. Unregisters hdev 2. Calls function level reset 3. Registers hdev Test case: - run command sudo rtcwake -m disk -s 60 Signed-off-by: Ravindra Signed-off-by: Kiran K Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel_pcie: Fix event packet loss issue

2025-10-24T14:31:06+00:00

In the current btintel_pcie driver implementation, when an interrupt is received, the driver checks for the alive cause before the TX/RX cause. Handling the alive cause involves resetting the TX/RX queue indices. This flow works correctly when the causes are mutually exclusive. However, if both cause bits are set simultaneously, the alive cause resets the queue indices, resulting in an event packet drop and a command timeout. To fix this issue, the driver is modified to handle all other causes before checking for the alive cause. Test case: Issue is seen with stress reboot scenario - 50x run [20.337589] Bluetooth: hci0: Device revision is 0 [20.346750] Bluetooth: hci0: Secure boot is enabled [20.346752] Bluetooth: hci0: OTP lock is disabled [20.346752] Bluetooth: hci0: API lock is enabled [20.346752] Bluetooth: hci0: Debug lock is disabled [20.346753] Bluetooth: hci0: Minimum firmware build 1 week 10 2014 [20.346754] Bluetooth: hci0: Bootloader timestamp 2023.43 buildtype 1 build 11631 [20.359070] Bluetooth: hci0: Found device firmware: intel/ibt-00a0-00a1-iml.sfi [20.371499] Bluetooth: hci0: Boot Address: 0xb02ff800 [20.385769] Bluetooth: hci0: Firmware Version: 166-34.25 [20.538257] Bluetooth: hci0: Waiting for firmware download to complete [20.554424] Bluetooth: hci0: Firmware loaded in 178651 usecs [21.081588] Bluetooth: hci0: Timeout (500 ms) on tx completion [21.096541] Bluetooth: hci0: Failed to send frame (-62) [21.110240] Bluetooth: hci0: sending frame failed (-62) [21.138551] Bluetooth: hci0: Failed to send Intel Reset command [21.170153] Bluetooth: hci0: Intel Soft Reset failed (-62) Signed-off-by: Kiran K Signed-off-by: Sai Teja Aluvala Reviewed-by: Paul Menzel Fixes: c2b636b3f788 ("Bluetooth: btintel_pcie: Add support for PCIe transport") Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel_pcie: Refactor Device Coredump

2025-09-27T15:37:00+00:00

As device coredumps are not HCI traces, maintain the device coredump at the driver level and eliminate the dependency on hdev_devcd*() Signed-off-by: Kiran K Fixes: 07e6bddb54b4 ("Bluetooth: btintel_pcie: Add support for device coredump") Signed-off-by: Luiz Augusto von Dentz