diff options
| -rw-r--r-- | net/bluetooth/Kconfig | 13 | ||||
| -rw-r--r-- | net/bluetooth/Makefile | 2 | ||||
| -rw-r--r-- | net/bluetooth/af_bluetooth.c | 6 | ||||
| -rw-r--r-- | net/bluetooth/selftest.c | 62 | ||||
| -rw-r--r-- | net/bluetooth/selftest.h | 45 |
5 files changed, 128 insertions, 0 deletions
diff --git a/net/bluetooth/Kconfig b/net/bluetooth/Kconfig index 29bcafc41adf..3296841531c9 100644 --- a/net/bluetooth/Kconfig +++ b/net/bluetooth/Kconfig @@ -64,4 +64,17 @@ config BT_6LOWPAN help IPv6 compression over Bluetooth Low Energy. +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. + source "drivers/bluetooth/Kconfig" diff --git a/net/bluetooth/Makefile b/net/bluetooth/Makefile index 364cff1ad4b1..8e96e3072266 100644 --- a/net/bluetooth/Makefile +++ b/net/bluetooth/Makefile @@ -15,4 +15,6 @@ bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o mgmt.o \ hci_sock.o hci_sysfs.o l2cap_core.o l2cap_sock.o smp.o sco.o lib.o \ a2mp.o amp.o ecc.o hci_request.o hci_debugfs.o +bluetooth-$(CONFIG_BT_SELFTEST) += selftest.o + subdir-ccflags-y += -D__CHECK_ENDIAN__ diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c index 012e3b03589d..ce22e0cfa923 100644 --- a/net/bluetooth/af_bluetooth.c +++ b/net/bluetooth/af_bluetooth.c @@ -31,6 +31,8 @@ #include <net/bluetooth/bluetooth.h> #include <linux/proc_fs.h> +#include "selftest.h" + #define VERSION "2.20" /* Bluetooth sockets */ @@ -716,6 +718,10 @@ static int __init bt_init(void) BT_INFO("Core ver %s", VERSION); + err = bt_selftest(); + if (err < 0) + return err; + bt_debugfs = debugfs_create_dir("bluetooth", NULL); err = bt_sysfs_init(); diff --git a/net/bluetooth/selftest.c b/net/bluetooth/selftest.c new file mode 100644 index 000000000000..00cac4a5e229 --- /dev/null +++ b/net/bluetooth/selftest.c @@ -0,0 +1,62 @@ +/* + BlueZ - Bluetooth protocol stack for Linux + + Copyright (C) 2014 Intel Corporation + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 2 as + published by the Free Software Foundation; + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. + IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY + CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + + ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, + COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS + SOFTWARE IS DISCLAIMED. +*/ + +#include <net/bluetooth/bluetooth.h> + +#include "selftest.h" + +static int __init run_selftest(void) +{ + BT_INFO("Starting self testing"); + + BT_INFO("Finished self testing"); + + return 0; +} + +#if IS_MODULE(CONFIG_BT) + +/* This is run when CONFIG_BT_SELFTEST=y and CONFIG_BT=m and is just a + * wrapper to allow running this at module init. + * + * If CONFIG_BT_SELFTEST=n, then this code is not compiled at all. + */ +int __init bt_selftest(void) +{ + return run_selftest(); +} + +#else + +/* This is run when CONFIG_BT_SELFTEST=y and CONFIG_BT=y and is run + * via late_initcall() as last item in the initialization sequence. + * + * If CONFIG_BT_SELFTEST=n, then this code is not compiled at all. + */ +static int __init bt_selftest_init(void) +{ + return run_selftest(); +} +late_initcall(bt_selftest_init); + +#endif diff --git a/net/bluetooth/selftest.h b/net/bluetooth/selftest.h new file mode 100644 index 000000000000..2aa0a346a913 --- /dev/null +++ b/net/bluetooth/selftest.h @@ -0,0 +1,45 @@ +/* + BlueZ - Bluetooth protocol stack for Linux + Copyright (C) 2014 Intel Corporation + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License version 2 as + published by the Free Software Foundation; + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. + IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY + CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + + ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, + COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS + SOFTWARE IS DISCLAIMED. +*/ + +#if IS_ENABLED(CONFIG_BT_SELFTEST) && IS_MODULE(CONFIG_BT) + +/* When CONFIG_BT_SELFTEST=y and the CONFIG_BT=m, then the self testing + * is run at module loading time. + */ +int bt_selftest(void); + +#else + +/* When CONFIG_BT_SELFTEST=y and CONFIG_BT=y, then the self testing + * is run via late_initcall() to make sure that subsys_initcall() of + * the Bluetooth subsystem and device_initcall() of the Crypto subsystem + * do not clash. + * + * When CONFIG_BT_SELFTEST=n, then this turns into an empty call that + * has no impact. + */ +static inline int bt_selftest(void) +{ + return 0; +} + +#endif |