Re: Resend: [PATCH] Bluetooth: Fix Endian Bug.

From: Marcel Holtmann
Date: Thu Mar 08 2012 - 12:53:24 EST


Hi Gustavo,

> > Fix network to host endian conversion for L2CAP chan id.
> >
> > Signed-off-by: Santosh Nayak <santoshprasadnayak@xxxxxxxxx>
> > ---
> > net/bluetooth/l2cap_sock.c | 5 +++--
> > 1 files changed, 3 insertions(+), 2 deletions(-)
> >
> > diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
> > index 401d942..86d5067 100644
> > --- a/net/bluetooth/l2cap_sock.c
> > +++ b/net/bluetooth/l2cap_sock.c
> > @@ -82,7 +82,7 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
> > }
> >
> > if (la.l2_cid)
> > - err = l2cap_add_scid(chan, la.l2_cid);
> > + err = l2cap_add_scid(chan, __le16_to_cpu(la.l2_cid));
>
> This is kind weird, la.l2_cid comes from the user, so it is already in host
> endian. No need for convertions here.

CID and PSM are provided in little endian by user space.

Regards

Marcel


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