Messages in this thread Patch in this message | | | From | "Ben Dooks (Codethink)" <> | Subject | [PATCH] RFC: Bluetooth: missed cpu_to_le16 conversion in hci_init4_req | Date | Wed, 16 Oct 2019 12:39:43 +0100 |
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It looks like in hci_init4_req() the request is being initialised from cpu-endian data but the packet is specified to be little-endian. This causes an warning from sparse due to __le16 to u16 conversion.
Fix this by using cpu_to_le16() on the two fields in the packet.
net/bluetooth/hci_core.c:845:27: warning: incorrect type in assignment (different base types) net/bluetooth/hci_core.c:845:27: expected restricted __le16 [usertype] tx_len net/bluetooth/hci_core.c:845:27: got unsigned short [usertype] le_max_tx_len net/bluetooth/hci_core.c:846:28: warning: incorrect type in assignment (different base types) net/bluetooth/hci_core.c:846:28: expected restricted __le16 [usertype] tx_time net/bluetooth/hci_core.c:846:28: got unsigned short [usertype] le_max_tx_time
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> --- Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Johan Hedberg <johan.hedberg@gmail.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: linux-bluetooth@vger.kernel.org Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- net/bluetooth/hci_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 04bc79359a17..b2559d4bed81 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -842,8 +842,8 @@ static int hci_init4_req(struct hci_request *req, unsigned long opt) if (hdev->le_features[0] & HCI_LE_DATA_LEN_EXT) { struct hci_cp_le_write_def_data_len cp; - cp.tx_len = hdev->le_max_tx_len; - cp.tx_time = hdev->le_max_tx_time; + cp.tx_len = cpu_to_le16(hdev->le_max_tx_len); + cp.tx_time = cpu_to_le16(hdev->le_max_tx_time); hci_req_add(req, HCI_OP_LE_WRITE_DEF_DATA_LEN, sizeof(cp), &cp); } -- 2.23.0
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