linux-kernel - Re: [PATCH] RFC: Bluetooth: missed cpu_to_le16 conversion in hci_init4

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Message-Id: <C87AB3FC-D613-4974-8FAF-99DAD156410C@holtmann.org>
Date:   Wed, 16 Oct 2019 20:41:57 +0200
From:   Marcel Holtmann <marcel@...tmann.org>
To:     "Ben Dooks (Codethink)" <ben.dooks@...ethink.co.uk>
Cc:     linux-kernel@...ts.codethink.co.uk,
        Johan Hedberg <johan.hedberg@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] RFC: Bluetooth: missed cpu_to_le16 conversion in
 hci_init4_req

Hi Ben,

> 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@...ethink.co.uk>
> ---
> Cc: Marcel Holtmann <marcel@...tmann.org>
> Cc: Johan Hedberg <johan.hedberg@...il.com>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: linux-bluetooth@...r.kernel.org
> Cc: netdev@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org
> ---
> net/bluetooth/hci_core.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)

patch has been applied to bluetooth-next tree.

Regards

Marcel