kernel/linux.git/drivers/bluetooth/btintel.c, branch v7.1-rc5

Bluetooth: btintel: Add support for Scorpious Peak2F support

2026-04-10T14:28:44+00:00

Add support for Intel Bluetooth Scorpious Peak2F core. Signed-off-by: Kiran K Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel: Add DSBR support for ScP2 onwards

2026-04-10T14:28:05+00:00

Add DSBR support for Scorpious Peak2 cores onwards. Refer commit eb9e749c0182 ("Bluetooth: btintel: Allow configuring drive strength of BRI") for details about DSBR. Signed-off-by: Kiran K Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel: Add support for Scorpious Peak2 support

2026-04-10T14:27:46+00:00

Add support for Intel Bluetooth Scorpious Peak2 core. Signed-off-by: Kiran K Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel: Replace CNVi id with hardware variant

2026-04-10T14:27:27+00:00

Use hardware variant instead of CNVi to send dsbr command. Signed-off-by: Kiran K Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel: Add support for hybrid signature for ScP2 onwards

2026-04-10T14:27:08+00:00

If FW image has hybrid signature (ECDSA and LMS) then send CSS header, ECDSA public key, ECDSA signature, LMS public key, LMS signature and command buffer to device. Signed-off-by: Kiran K Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel: serialize btintel_hw_error() with hci_req_sync_lock

2026-03-25T19:31:48+00:00

btintel_hw_error() issues two __hci_cmd_sync() calls (HCI_OP_RESET and Intel exception-info retrieval) without holding hci_req_sync_lock(). This lets it race against hci_dev_do_close() -> btintel_shutdown_combined(), which also runs __hci_cmd_sync() under the same lock. When both paths manipulate hdev->req_status/req_rsp concurrently, the close path may free the response skb first, and the still-running hw_error path hits a slab-use-after-free in kfree_skb(). Wrap the whole recovery sequence in hci_req_sync_lock/unlock so it is serialized with every other synchronous HCI command issuer. Below is the data race report and the kasan report: BUG: data-race in __hci_cmd_sync_sk / btintel_shutdown_combined read of hdev->req_rsp at net/bluetooth/hci_sync.c:199 by task kworker/u17:1/83: __hci_cmd_sync_sk+0x12f2/0x1c30 net/bluetooth/hci_sync.c:200 __hci_cmd_sync+0x55/0x80 net/bluetooth/hci_sync.c:223 btintel_hw_error+0x114/0x670 drivers/bluetooth/btintel.c:254 hci_error_reset+0x348/0xa30 net/bluetooth/hci_core.c:1030 write/free by task ioctl/22580: btintel_shutdown_combined+0xd0/0x360 drivers/bluetooth/btintel.c:3648 hci_dev_close_sync+0x9ae/0x2c10 net/bluetooth/hci_sync.c:5246 hci_dev_do_close+0x232/0x460 net/bluetooth/hci_core.c:526 BUG: KASAN: slab-use-after-free in sk_skb_reason_drop+0x43/0x380 net/core/skbuff.c:1202 Read of size 4 at addr ffff888144a738dc by task kworker/u17:1/83: __hci_cmd_sync_sk+0x12f2/0x1c30 net/bluetooth/hci_sync.c:200 __hci_cmd_sync+0x55/0x80 net/bluetooth/hci_sync.c:223 btintel_hw_error+0x186/0x670 drivers/bluetooth/btintel.c:260 Fixes: 973bb97e5aee ("Bluetooth: btintel: Add generic function for handling hardware errors") Signed-off-by: Cen Zhang Signed-off-by: Luiz Augusto von Dentz

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

Bluetooth: btintel: Add support for BlazarIW core

2025-09-27T15:36:59+00:00

Add support for the BlazarIW Bluetooth core used in the Wildcat Lake platform. HCI traces: < HCI Command: Intel Read Version (0x3f|0x0005) plen 1 Requested Type: All Supported Types(0xff) > HCI Event: Command Complete (0x0e) plen 122 Intel Read Version (0x3f|0x0005) ncmd 1 Status: Success (0x00) ..... CNVi BT(18): 0x00223700 - BlazarIW(0x22) ..... ..... Signed-off-by: Vijay Satija Signed-off-by: Kiran K Signed-off-by: Luiz Augusto von Dentz

Bluetooth: btintel: Define a macro for Intel Reset vendor command

2025-07-23T14:31:03+00:00

Use macro for Intel Reset command (0xfc01) instead of hard coded value. Signed-off-by: Kiran K Signed-off-by: Luiz Augusto von Dentz