[PATCH v4 0/2] Bluetooth: Improve retrying of connection attempts

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Since commit 4c67bc74f016 ("[Bluetooth] Support concurrent connect
requests"), the kernel supports trying to connect again in case the
bluetooth card is busy and fails to connect.

The logic that should handle this became a bit spotty over time, and also
cards these days appear to fail with more errors than just "Command

This series refactores the handling of concurrent connection requests
by serializing all "Create Connection" commands for ACL connections
similar to how we do it for LE connections.


v1: https://lore.kernel.org/linux-bluetooth/20240102185933.64179-1-verdre@xxxxxxx/
v2: https://lore.kernel.org/linux-bluetooth/20240108183938.468426-1-verdre@xxxxxxx/
v3: https://lore.kernel.org/linux-bluetooth/20240108224614.56900-1-verdre@xxxxxxx/
  - Removed first two commits since they are already applied
  - Removed a BT_DBG() message in the acl_create_connection() function
    while moving to hci_sync because it seemed out of place in hci_sync
  - Added a mention of the test failure in mgmt-tester to commit message

Jonas Dreßler (2):
  Bluetooth: hci_conn: Only do ACL connections sequentially
  Bluetooth: Remove pending ACL connection attempts

 include/net/bluetooth/hci.h      |  1 +
 include/net/bluetooth/hci_core.h |  1 -
 include/net/bluetooth/hci_sync.h |  3 ++
 net/bluetooth/hci_conn.c         | 83 +++-----------------------------
 net/bluetooth/hci_event.c        | 21 ++------
 net/bluetooth/hci_sync.c         | 70 +++++++++++++++++++++++++++
 6 files changed, 86 insertions(+), 93 deletions(-)


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