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Date: Tue, 17 May 2011 11:13:16 -0300
From: "Gustavo F. Padovan" <padovan@...fusion.mobi>
To: David Miller <davem@...emloft.net>
Cc: linville@...driver.com, linux-wireless@...r.kernel.org,
netdev@...r.kernel.org
Subject: Re: pull request: wireless-next-2.6 2011-05-16-v2
* David Miller <davem@...emloft.net> [2011-05-16 23:08:35 -0400]:
> From: "John W. Linville" <linville@...driver.com>
> Date: Mon, 16 May 2011 20:08:09 -0400
>
> > I'm sorry, Dave! In my defense, I am on the verge of sickness and got
> > very little sleep last night... :-(
> >
> > I have corrected the problem and was sure to perform the correct build
> > test this time! :-)
>
> So these hunks made to net/bluetooth/l2cap_core.c:
>
> @@ -3745,11 +3758,14 @@ done:
> static inline int l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm, struct sk_buff *skb)
> {
> struct sock *sk;
> + struct l2cap_chan *chan;
>
> - sk = l2cap_get_sock_by_psm(0, psm, conn->src);
> - if (!sk)
> + chan = l2cap_global_chan_by_psm(0, psm, conn->src);
> + if (!chan)
> goto drop;
>
> + sk = chan->sk;
> +
> bh_lock_sock(sk);
>
> BT_DBG("sk %p, len %d", sk, skb->len);
> @@ -3745,11 +3758,14 @@ done:
> static inline int l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm, struct sk_buff *skb)
> {
> struct sock *sk;
> + struct l2cap_chan *chan;
>
> - sk = l2cap_get_sock_by_psm(0, psm, conn->src);
> - if (!sk)
> + chan = l2cap_global_chan_by_psm(0, psm, conn->src);
> + if (!chan)
> goto drop;
>
> + sk = chan->sk;
> +
> bh_lock_sock(sk);
>
> BT_DBG("sk %p, len %d", sk, skb->len);
>
> Doesn't generate the following warnings on your compiler?
>
> net/bluetooth/l2cap_core.c: In function ‘l2cap_recv_frame’:
> net/bluetooth/l2cap_core.c:3758:15: warning: ‘sk’ may be used uninitialized in this function
> net/bluetooth/l2cap_core.c:3758:15: note: ‘sk’ was declared here
> net/bluetooth/l2cap_core.c:3791:15: warning: ‘sk’ may be used uninitialized in this function
> net/bluetooth/l2cap_core.c:3791:15: note: ‘sk’ was declared here
>
I keep not seeing these warnings. I'll upgrade to gcc 4.6 and check this again.
padovan bluetooth-next-2.6 $ rm net/bluetooth/*.o net/bluetooth/*.ko
padovan bluetooth-next-2.6 $ make
CHK include/linux/version.h
CHK include/generated/utsrelease.h
UPD include/generated/utsrelease.h
CALL scripts/checksyscalls.sh
CHK include/generated/compile.h
UPD include/generated/compile.h
CC init/version.o
CC kernel/module.o
LD init/built-in.o
CC kernel/kexec.o
LD kernel/built-in.o
LD net/bluetooth/built-in.o
CC [M] net/bluetooth/af_bluetooth.o
CC [M] net/bluetooth/hci_core.o
CC [M] net/bluetooth/hci_conn.o
CC [M] net/bluetooth/hci_event.o
CC [M] net/bluetooth/mgmt.o
CC [M] net/bluetooth/hci_sock.o
CC [M] net/bluetooth/hci_sysfs.o
CC [M] net/bluetooth/lib.o
CC [M] net/bluetooth/l2cap_core.o
CC [M] net/bluetooth/l2cap_sock.o
CC [M] net/bluetooth/sco.o
LD [M] net/bluetooth/bluetooth.o
LD vmlinux.o
--
Gustavo F. Padovan
http://profusion.mobi
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