From 9cc63f8bcd560c760d0b12e15bba8f81c86237cf Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Fri, 14 Aug 2026 15:43:51 -0700 Subject: Merge branches 'expcb.2026.07.24a', 'misc.2026.07.30a', 'rcu-tasks.2026.07.30a', 'srcu.2026.08.11a' and 'torture.2026.08.14a' into HEAD Changes: Make expedited grace periods expedite normal RCU callbacks Miscellaneous fixes: * Improve diagnostic output with character task states. * Mark accesses to inform KCSAN of concurrency design. * Move from kmalloc() to kmalloc_obj(). * Documentation updates. * Improve handling of RCU deferred quiescent states. * Clean up unused function arguments and structure fields. * Reduce show_rcu_gp_kthreads() stack space. Tasks RCU updates: * Clean up after SRCU re-implementation of Tasks Trace RCU. * Mark accesses to inform KCSAN of concurrency design. * Add ->lazy_timer status to diagnostic output. * Remove an unnecessary memory barrier. * Fix a data race, courtesy of KCSAN. * Documentation updates. * Convert cond_resched_tasks_rcu_qs() from macro to static inline function. SRCU updates: * Add Rust helpers for SRCU. * Avoid losing queued work at cleanup_srcu_struct() time. Torture-test updates: * Preparation work for immediate RCU priority deboosting. * Test RCU readers from real interrupt handlers (as opposed to softirq). * Simplify code through use of cpumask_next_wrap(). * Improve diagnostic output with character task states. * Add rcutorture.nwriters parameter to allow lightweight stall testing, and rcutorture.stall_only to make doing so easier. * Test an RCU Tasks Trace grace period implying an RCU grace period. * Make RCU Tasks Trace torturing track reader batches. * Fix a data race, courtesy of KCSAN. * Plug a shuffle_tmp_mask memory leak on kthread spawn failure. --- net/bluetooth/Kconfig | 148 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 148 insertions(+) create mode 100644 net/bluetooth/Kconfig (limited to 'net/bluetooth/Kconfig') diff --git a/net/bluetooth/Kconfig b/net/bluetooth/Kconfig new file mode 100644 index 000000000..d250e94e9 --- /dev/null +++ b/net/bluetooth/Kconfig @@ -0,0 +1,148 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Bluetooth subsystem configuration +# + +menuconfig BT + tristate "Bluetooth subsystem support" + depends on !S390 + depends on RFKILL || !RFKILL + select CRC16 + select CRYPTO + select CRYPTO_LIB_AES + select CRYPTO_LIB_AES_CBC_MACS + select CRYPTO_ECDH + help + Bluetooth is low-cost, low-power, short-range wireless technology. + It was designed as a replacement for cables and other short-range + technologies like IrDA. Bluetooth operates in personal area range + that typically extends up to 10 meters. More information about + Bluetooth can be found at . + + Linux Bluetooth subsystem consist of several layers: + Bluetooth Core + HCI device and connection manager, scheduler + SCO audio links + L2CAP (Logical Link Control and Adaptation Protocol) + SMP (Security Manager Protocol) on LE (Low Energy) links + ISO isochronous links + HCI Device drivers (Interface to the hardware) + RFCOMM Module (RFCOMM Protocol) + BNEP Module (Bluetooth Network Encapsulation Protocol) + HIDP Module (Human Interface Device Protocol) + + Say Y here to compile Bluetooth support into the kernel or say M to + compile it as module (bluetooth). + + To use Linux Bluetooth subsystem, you will need several user-space + utilities like hciconfig and bluetoothd. These utilities and updates + to Bluetooth kernel modules are provided in the BlueZ packages. For + more information, see . + +config BT_BREDR + bool "Bluetooth Classic (BR/EDR) features" + depends on BT + default y + help + Bluetooth Classic includes support for Basic Rate (BR) + available with Bluetooth version 1.0b or later and support + for Enhanced Data Rate (EDR) available with Bluetooth + version 2.0 or later. + +source "net/bluetooth/rfcomm/Kconfig" + +source "net/bluetooth/bnep/Kconfig" + +source "net/bluetooth/hidp/Kconfig" + +config BT_LE + bool "Bluetooth Low Energy (LE) features" + depends on BT + default y + help + Bluetooth Low Energy includes support low-energy physical + layer available with Bluetooth version 4.0 or later. + +config BT_LE_L2CAP_ECRED + bool "Bluetooth L2CAP Enhanced Credit Flow Control" + depends on BT_LE + default y + help + Bluetooth Low Energy L2CAP Enhanced Credit Flow Control available with + Bluetooth version 5.2 or later. + + This can be overridden by passing bluetooth.enable_ecred=[1|0] + on the kernel commandline. + +config BT_6LOWPAN + tristate "Bluetooth 6LoWPAN support" + depends on BT_LE && 6LOWPAN + help + IPv6 compression over Bluetooth Low Energy. + +config BT_LEDS + bool "Enable LED triggers" + depends on BT + depends on LEDS_CLASS + select LEDS_TRIGGERS + help + This option selects a few LED triggers for different + Bluetooth events. + +config BT_MSFTEXT + bool "Enable Microsoft extensions" + depends on BT + help + This options enables support for the Microsoft defined HCI + vendor extensions. + +config BT_AOSPEXT + bool "Enable Android Open Source Project extensions" + depends on BT + help + This options enables support for the Android Open Source + Project defined HCI vendor extensions. + +config BT_DEBUGFS + bool "Export Bluetooth internals in debugfs" + depends on BT && DEBUG_FS + default y + help + Provide extensive information about internal Bluetooth states + in debugfs. + +config BT_SELFTEST + bool "Bluetooth self testing support" + depends on BT && DEBUG_KERNEL + help + Run self tests when initializing the Bluetooth subsystem. This + is a developer option and can cause significant delay when booting + the system. + + When the Bluetooth subsystem is built as module, then the test + cases are run first thing at module load time. When the Bluetooth + subsystem is compiled into the kernel image, then the test cases + are run late in the initcall hierarchy. + +config BT_SELFTEST_ECDH + bool "ECDH test cases" + depends on BT_LE && BT_SELFTEST + help + Run test cases for ECDH cryptographic functionality used by the + Bluetooth Low Energy Secure Connections feature. + +config BT_SELFTEST_SMP + bool "SMP test cases" + depends on BT_LE && BT_SELFTEST + help + Run test cases for SMP cryptographic functionality, including both + legacy SMP as well as the Secure Connections features. + +config BT_FEATURE_DEBUG + bool "Enable runtime option for debugging statements" + depends on BT && !DYNAMIC_DEBUG + help + This provides an option to enable/disable debugging statements + at runtime via the experimental features interface. + +source "drivers/bluetooth/Kconfig" -- cgit v1.3.1