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| author | Vasily Khoruzhick <anarsoul@gmail.com> | 2023-03-07 23:17:30 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-05-24 17:32:39 +0100 |
| commit | c97ab504419b41e8bcc2ade6b9b02a32ab626296 (patch) | |
| tree | ad36f820fe6b38e235a448952b29831572086c4e /net | |
| parent | d9a68e9e89ce86f2df8c1a6132386aaddcc7698c (diff) | |
| download | linux-c97ab504419b41e8bcc2ade6b9b02a32ab626296.tar.gz linux-c97ab504419b41e8bcc2ade6b9b02a32ab626296.tar.bz2 linux-c97ab504419b41e8bcc2ade6b9b02a32ab626296.zip | |
Bluetooth: Add new quirk for broken local ext features page 2
[ Upstream commit 8194f1ef5a815aea815a91daf2c721eab2674f1f ]
Some adapters (e.g. RTL8723CS) advertise that they have more than
2 pages for local ext features, but they don't support any features
declared in these pages. RTL8723CS reports max_page = 2 and declares
support for sync train and secure connection, but it responds with
either garbage or with error in status on corresponding commands.
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Bastian Germann <bage@debian.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bluetooth/hci_event.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 42a3a19b111e..21416ccc30ab 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -881,8 +881,13 @@ static u8 hci_cc_read_local_ext_features(struct hci_dev *hdev, void *data, if (rp->status) return rp->status; - if (hdev->max_page < rp->max_page) - hdev->max_page = rp->max_page; + if (hdev->max_page < rp->max_page) { + if (test_bit(HCI_QUIRK_BROKEN_LOCAL_EXT_FEATURES_PAGE_2, + &hdev->quirks)) + bt_dev_warn(hdev, "broken local ext features page 2"); + else + hdev->max_page = rp->max_page; + } if (rp->page < HCI_MAX_PAGES) memcpy(hdev->features[rp->page], rp->features, 8); |