AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/net/bluetooth
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Sebastian Andrzej Siewior e6da0edc24 Bluetooth: Acquire sk_lock.slock without disabling interrupts 
There was a lockdep which led to commit
   fad003b6c8 ("Bluetooth: Fix inconsistent lock state with RFCOMM")

Lockdep noticed that `sk->sk_lock.slock' was acquired without disabling
the softirq while the lock was also used in softirq context.
Unfortunately the solution back then was to disable interrupts before
acquiring the lock which however made lockdep happy.
It would have been enough to simply disable the softirq. Disabling
interrupts before acquiring a spinlock_t is not allowed on PREEMPT_RT
because these locks are converted to 'sleeping' spinlocks.

Use spin_lock_bh() in order to acquire the `sk_lock.slock'.

Reported-by: Luis Claudio R. Goncalves <lclaudio@uudg.org>
Reported-by: kbuild test robot <lkp@intel.com> [missing unlock]
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2020-05-29 13:48:46 +02:00
..
bnep Bluetooth: Replace zero-length array with flexible-array member 2020-02-28 08:30:02 +01:00
cmtp treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
hidp Bluetooth: optimize barrier usage for Rmw atomics 2020-01-29 19:50:44 +01:00
rfcomm Bluetooth: Acquire sk_lock.slock without disabling interrupts 2020-05-29 13:48:46 +02:00
6lowpan.c net: partially revert dynamic lockdep key changes 2020-05-04 12:05:56 -07:00
a2mp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
a2mp.h Bluetooth: Replace zero-length array with flexible-array member 2020-02-28 08:30:02 +01:00
af_bluetooth.c net: use helpers to change sk_ack_backlog 2019-11-06 16:14:48 -08:00
amp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
amp.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
ecdh_helper.c Bluetooth: let the crypto subsystem generate the ecc privkey 2017-10-06 20:35:47 +02:00
ecdh_helper.h Bluetooth: let the crypto subsystem generate the ecc privkey 2017-10-06 20:35:47 +02:00
hci_conn.c Bluetooth: Fix assuming EIR flags can result in SSP authentication 2020-05-20 16:33:43 +02:00
hci_core.c Bluetooth: Add hook for driver to prevent wake from suspend 2020-05-13 09:12:04 +02:00
hci_debugfs.c Bluetooth: debugfs option to unset MITM flag 2020-04-07 18:32:21 +02:00
hci_debugfs.h Bluetooth: Provide option to enable/disable debugfs information 2015-02-15 18:54:13 +02:00
hci_event.c Bluetooth: Consolidate encryption handling in hci_encrypt_cfm 2020-05-20 16:30:33 +02:00
hci_request.c Bluetooth: Rename BT_SUSPEND_COMPLETE 2020-05-13 09:12:04 +02:00
hci_request.h Bluetooth: Handle PM_SUSPEND_PREPARE and PM_POST_SUSPEND 2020-03-11 18:00:48 +01:00
hci_sock.c Bluetooth: Introduce HCI_MGMT_HDEV_OPTIONAL option 2020-05-11 12:13:38 +02:00
hci_sysfs.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00
Kconfig Bluetooth: Introduce debug feature when dynamic debug is disabled 2020-05-11 12:16:27 +02:00
l2cap_core.c Bluetooth: L2CAP: Fix errors during L2CAP_CREDIT_BASED_CONNECTION_REQ (0x17) 2020-05-11 12:13:38 +02:00
l2cap_sock.c Bluetooth: L2CAP: add support for waiting disconnection resp 2020-05-13 10:03:51 +02:00
leds.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
leds.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
lib.c Bluetooth: Introduce debug feature when dynamic debug is disabled 2020-05-11 12:16:27 +02:00
Makefile Bluetooth: Add framework for Microsoft vendor extension 2020-04-05 14:53:05 +03:00
mgmt_util.c networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
mgmt_util.h Bluetooth: Add generic mgmt helper API 2015-03-17 18:03:08 +01:00
mgmt.c Bluetooth: Introduce debug feature when dynamic debug is disabled 2020-05-11 12:16:27 +02:00
msft.c Bluetooth: Add framework for Microsoft vendor extension 2020-04-05 14:53:05 +03:00
msft.h Bluetooth: Add framework for Microsoft vendor extension 2020-04-05 14:53:05 +03:00
sco.c Bluetooth: Fix crash when using new BT_PHY option 2020-02-18 22:02:15 +01:00
selftest.c Bluetooth: Fix compiler warning with selftest duration calculation 2017-10-06 21:49:13 +03:00
selftest.h Bluetooth: Add support for self testing framework 2014-12-30 08:53:55 +02:00
smp.c Bluetooth: Fix for GAP/SEC/SEM/BI-10-C 2020-05-18 09:58:53 +02:00
smp.h Bluetooth: SMP: fix crash in unpairing 2018-09-26 12:39:32 +03:00