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authorIsmael Ferreras Morezuelas <swyterzone@gmail.com>2022-03-07 21:04:44 +0100
committerMarcel Holtmann <marcel@holtmann.org>2022-03-18 17:12:07 +0100
commit0eaecfb2e4814d51ab172df3823e35d7c488b6d2 (patch)
tree5f1d0837ff46d79089e2cb14db94c1ce7c788635 /include/net
parentBluetooth: btmtkuart: fix the conflict between mtk and msft vendor event (diff)
downloadlinux-0eaecfb2e4814d51ab172df3823e35d7c488b6d2.tar.xz
linux-0eaecfb2e4814d51ab172df3823e35d7c488b6d2.zip
Bluetooth: hci_sync: Add a new quirk to skip HCI_FLT_CLEAR_ALL
Some controllers have problems with being sent a command to clear all filtering. While the HCI code does not unconditionally send a clear-all anymore at BR/EDR setup (after the state machine refactor), there might be more ways of hitting these codepaths in the future as the kernel develops. Cc: stable@vger.kernel.org Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Ismael Ferreras Morezuelas <swyterzone@gmail.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/bluetooth/hci.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 35c073d44ec5..5cb095b09a94 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -255,6 +255,16 @@ enum {
* during the hdev->setup vendor callback.
*/
HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER,
+
+ /* When this quirk is set, HCI_OP_SET_EVENT_FLT requests with
+ * HCI_FLT_CLEAR_ALL are ignored and event filtering is
+ * completely avoided. A subset of the CSR controller
+ * clones struggle with this and instantly lock up.
+ *
+ * Note that devices using this must (separately) disable
+ * runtime suspend, because event filtering takes place there.
+ */
+ HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL,
};
/* HCI device flags */