6.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx> [ Upstream commit 253f3399f4c09ce6f4e67350f839be0361b4d5ff ] This introduces HCI_QUIRK_BROKEN_LE_CODED which is used to indicate that LE Coded PHY shall not be used, it is then set for some Intel models that claim to support it but when used causes many problems. Cc: stable@xxxxxxxxxxxxxxx # 6.4.y+ Link: https://github.com/bluez/bluez/issues/577 Link: https://github.com/bluez/bluez/issues/582 Link: https://lore.kernel.org/linux-bluetooth/CABBYNZKco-v7wkjHHexxQbgwwSz-S=GZ=dZKbRE1qxT1h4fFbQ@xxxxxxxxxxxxxx/T/# Fixes: 288c90224eec ("Bluetooth: Enable all supported LE PHY by default") Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/bluetooth/btintel.c | 6 ++++++ include/net/bluetooth/hci.h | 10 ++++++++++ include/net/bluetooth/hci_core.h | 4 +++- net/bluetooth/hci_sync.c | 5 ++++- 4 files changed, 23 insertions(+), 2 deletions(-) diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c index d9349ba48281e..7ba60151a16a6 100644 --- a/drivers/bluetooth/btintel.c +++ b/drivers/bluetooth/btintel.c @@ -2658,6 +2658,9 @@ static int btintel_setup_combined(struct hci_dev *hdev) set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks); + /* These variants don't seem to support LE Coded PHY */ + set_bit(HCI_QUIRK_BROKEN_LE_CODED, &hdev->quirks); + /* Setup MSFT Extension support */ btintel_set_msft_opcode(hdev, ver.hw_variant); @@ -2729,6 +2732,9 @@ static int btintel_setup_combined(struct hci_dev *hdev) */ set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks); + /* These variants don't seem to support LE Coded PHY */ + set_bit(HCI_QUIRK_BROKEN_LE_CODED, &hdev->quirks); + /* Set Valid LE States quirk */ set_bit(HCI_QUIRK_VALID_LE_STATES, &hdev->quirks); diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index 9ae6f60c96bf2..3ff822ebb3a47 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -319,6 +319,16 @@ enum { * This quirk must be set before hci_register_dev is called. */ HCI_QUIRK_USE_MSFT_EXT_ADDRESS_FILTER, + + /* + * When this quirk is set, LE Coded PHY shall not be used. This is + * required for some Intel controllers which erroneously claim to + * support it but it causes problems with extended scanning. + * + * This quirk can be set before hci_register_dev is called or + * during the hdev->setup vendor callback. + */ + HCI_QUIRK_BROKEN_LE_CODED, }; /* HCI device flags */ diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index a4b3a95e531a4..3190ca493bd18 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -1772,7 +1772,9 @@ void hci_conn_del_sysfs(struct hci_conn *conn); #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \ ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M)) -#define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED)) +#define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED) && \ + !test_bit(HCI_QUIRK_BROKEN_LE_CODED, \ + &(dev)->quirks)) #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \ ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED)) diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c index 570909425618d..3177a38ef4d60 100644 --- a/net/bluetooth/hci_sync.c +++ b/net/bluetooth/hci_sync.c @@ -4684,7 +4684,10 @@ static const struct { "advertised, but not supported."), HCI_QUIRK_BROKEN(SET_RPA_TIMEOUT, "HCI LE Set Random Private Address Timeout command is " - "advertised, but not supported.") + "advertised, but not supported."), + HCI_QUIRK_BROKEN(LE_CODED, + "HCI LE Coded PHY feature bit is set, " + "but its usage is not supported.") }; /* This function handles hdev setup stage: -- 2.40.1
