Remove some pointless conditionals before kfree_skb().
Signed-off-by: NWei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove some pointless conditionals before kfree_skb().
Signed-off-by: NWei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove some pointless conditionals before kfree_skb().
Signed-off-by: NWei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove some pointless conditionals before kfree_skb().
Signed-off-by: NWei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

There is really no need for function just doing simple kfree()
Signed-off-by: NPaulius Zaleckas <paulius.zaleckas@teltonika.lt>
Cc: Denis Joseph Barrow <D.Barow@option.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

No need to reclaim the same USB interface beeing probed.
Releasing interface does nothing also.

This is already in for a long time in off-kernel hso driver
and no regresions were noticed for this change.
Signed-off-by: NPaulius Zaleckas <paulius.zaleckas@teltonika.lt>
Cc: Denis Joseph Barrow <D.Barow@option.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Local variable dev = ppp->dev
Signed-off-by: NPaulius Zaleckas <paulius.zaleckas@teltonika.lt>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove the ColdFire CPU specific setup from here. The ColdFire
CPU platform code now sets up all this.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

m68knommu: add FEC platform support to ColdFire CPU's setup code

Move the per-CPU FEC driver setup code into the actual platform
setup code for each ColdFire CPU varient.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Trivial cleanup, list_del(); list_add_tail() is equivalent
to list_move_tail(). Semantic patch for coccinelle can be
found at www.cccmz.de/~snakebyte/list_move_tail.spatch
Signed-off-by: NEric Sesterhenn <snakebyte@gmx.de>
Acked-by: NKarsten Keil <kkeil@novell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Get rid of some noise that is for debug only.
Signed-off-by: NRon Mercer <ron.mercer@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This organizes a few calls into a function table to enable adding new
devices.
Signed-off-by: NRon Mercer <ron.mercer@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This is not a logical change but rather a move of the inbound firmware event
handler into it's own function as it will later be called by the outbound
path.
The addition of the mutex is to create exclusive access to the mailbox
commands between inbound and outbound handling.
Signed-off-by: NRon Mercer <ron.mercer@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add function for performing the reset rather than in-line. This function
may later be called by a core dump process.
Signed-off-by: NRon Mercer <ron.mercer@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NRon Mercer <ron.mercer@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove some pointless conditionals before kfree_skb().
Signed-off-by: NWei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

Remove some pointless conditionals before kfree_skb().
Signed-off-by: NWei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

The following commit introduce a regression:

	commit 7d0db0a3
	Author: Marcel Holtmann <marcel@holtmann.org>
	Date:   Mon Jul 14 20:13:51 2008 +0200

		[Bluetooth] Use a more unique bus name for connections

I get panic as following (by netconsole):

[ 2709.344034] usb 5-1: new full speed USB device using uhci_hcd and address 4
[ 2709.505776] usb 5-1: configuration #1 chosen from 1 choice
[ 2709.569207] Bluetooth: Generic Bluetooth USB driver ver 0.4
[ 2709.570169] usbcore: registered new interface driver btusb
[ 2845.742781] BUG: unable to handle kernel paging request at 6b6b6c2f
[ 2845.742958] IP: [<c015515c>] __lock_acquire+0x6c/0xa80
[ 2845.743087] *pde = 00000000
[ 2845.743206] Oops: 0002 [#1] SMP
[ 2845.743377] last sysfs file: /sys/class/bluetooth/hci0/hci0:6/type
[ 2845.743742] Modules linked in: btusb netconsole snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss rfcomm l2cap bluetooth vfat fuse snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm pl2303 snd_timer psmouse usbserial snd 3c59x e100 serio_raw soundcore i2c_i801 intel_agp mii agpgart snd_page_alloc rtc_cmos rtc_core thermal processor rtc_lib button thermal_sys sg evdev
[ 2845.743742]
[ 2845.743742] Pid: 0, comm: swapper Not tainted (2.6.29-rc5-smp #54) Dell DM051
[ 2845.743742] EIP: 0060:[<c015515c>] EFLAGS: 00010002 CPU: 0
[ 2845.743742] EIP is at __lock_acquire+0x6c/0xa80
[ 2845.743742] EAX: 00000046 EBX: 00000046 ECX: 6b6b6b6b EDX: 00000002
[ 2845.743742] ESI: 6b6b6b6b EDI: 00000000 EBP: c064fd14 ESP: c064fcc8
[ 2845.743742]  DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[ 2845.743742] Process swapper (pid: 0, ti=c064e000 task=c05d1400 task.ti=c064e000)
[ 2845.743742] Stack:
[ 2845.743742]  c05d1400 00000002 c05d1400 00000001 00000002 00000000 f65388dc c05d1400
[ 2845.743742]  6b6b6b6b 00000292 c064fd0c c0153732 00000000 00000000 00000001 f700fa50
[ 2845.743742]  00000046 00000000 00000000 c064fd40 c0155be6 00000000 00000002 00000001
[ 2845.743742] Call Trace:
[ 2845.743742]  [<c0153732>] ? trace_hardirqs_on_caller+0x72/0x1c0
[ 2845.743742]  [<c0155be6>] ? lock_acquire+0x76/0xa0
[ 2845.743742]  [<c03e1aad>] ? skb_dequeue+0x1d/0x70
[ 2845.743742]  [<c046c885>] ? _spin_lock_irqsave+0x45/0x80
[ 2845.743742]  [<c03e1aad>] ? skb_dequeue+0x1d/0x70
[ 2845.743742]  [<c03e1aad>] ? skb_dequeue+0x1d/0x70
[ 2845.743742]  [<c03e1f94>] ? skb_queue_purge+0x14/0x20
[ 2845.743742]  [<f8171f5a>] ? hci_conn_del+0x10a/0x1c0 [bluetooth]
[ 2845.743742]  [<f81399c9>] ? l2cap_disconn_ind+0x59/0xb0 [l2cap]
[ 2845.743742]  [<f81795ce>] ? hci_conn_del_sysfs+0x8e/0xd0 [bluetooth]
[ 2845.743742]  [<f8175758>] ? hci_event_packet+0x5f8/0x31c0 [bluetooth]
[ 2845.743742]  [<c03dfe19>] ? sock_def_readable+0x59/0x80
[ 2845.743742]  [<c046c14d>] ? _read_unlock+0x1d/0x20
[ 2845.743742]  [<f8178aa9>] ? hci_send_to_sock+0xe9/0x1d0 [bluetooth]
[ 2845.743742]  [<c015388b>] ? trace_hardirqs_on+0xb/0x10
[ 2845.743742]  [<f816fa6a>] ? hci_rx_task+0x2ba/0x490 [bluetooth]
[ 2845.743742]  [<c0133661>] ? tasklet_action+0x31/0xc0
[ 2845.743742]  [<c013367c>] ? tasklet_action+0x4c/0xc0
[ 2845.743742]  [<c0132eb7>] ? __do_softirq+0xa7/0x170
[ 2845.743742]  [<c0116dec>] ? ack_apic_level+0x5c/0x1c0
[ 2845.743742]  [<c0132fd7>] ? do_softirq+0x57/0x60
[ 2845.743742]  [<c01333dc>] ? irq_exit+0x7c/0x90
[ 2845.743742]  [<c01055bb>] ? do_IRQ+0x4b/0x90
[ 2845.743742]  [<c01333d5>] ? irq_exit+0x75/0x90
[ 2845.743742]  [<c010392c>] ? common_interrupt+0x2c/0x34
[ 2845.743742]  [<c010a14f>] ? mwait_idle+0x4f/0x70
[ 2845.743742]  [<c0101c05>] ? cpu_idle+0x65/0xb0
[ 2845.743742]  [<c045731e>] ? rest_init+0x4e/0x60
[ 2845.743742] Code: 0f 84 69 02 00 00 83 ff 07 0f 87 1e 06 00 00 85 ff 0f 85 08 05 00 00 8b 4d cc 8b 49 04 85 c9 89 4d d4 0f 84 f7 04 00 00 8b 75 d4 <f0> ff 86 c4 00 00 00 89 f0 e8 56 a9 ff ff 85 c0 0f 85 6e 03 00
[ 2845.743742] EIP: [<c015515c>] __lock_acquire+0x6c/0xa80 SS:ESP 0068:c064fcc8
[ 2845.743742] ---[ end trace 4c985b38f022279f ]---
[ 2845.743742] Kernel panic - not syncing: Fatal exception in interrupt
[ 2845.743742] ------------[ cut here ]------------
[ 2845.743742] WARNING: at kernel/smp.c:329 smp_call_function_many+0x151/0x200()
[ 2845.743742] Hardware name: Dell DM051
[ 2845.743742] Modules linked in: btusb netconsole snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss rfcomm l2cap bluetooth vfat fuse snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm pl2303 snd_timer psmouse usbserial snd 3c59x e100 serio_raw soundcore i2c_i801 intel_agp mii agpgart snd_page_alloc rtc_cmos rtc_core thermal processor rtc_lib button thermal_sys sg evdev
[ 2845.743742] Pid: 0, comm: swapper Tainted: G      D    2.6.29-rc5-smp #54
[ 2845.743742] Call Trace:
[ 2845.743742]  [<c012e076>] warn_slowpath+0x86/0xa0
[ 2845.743742]  [<c015041b>] ? trace_hardirqs_off+0xb/0x10
[ 2845.743742]  [<c0146384>] ? up+0x14/0x40
[ 2845.743742]  [<c012e661>] ? release_console_sem+0x31/0x1e0
[ 2845.743742]  [<c046c8ab>] ? _spin_lock_irqsave+0x6b/0x80
[ 2845.743742]  [<c015041b>] ? trace_hardirqs_off+0xb/0x10
[ 2845.743742]  [<c046c900>] ? _read_lock_irqsave+0x40/0x80
[ 2845.743742]  [<c012e7f2>] ? release_console_sem+0x1c2/0x1e0
[ 2845.743742]  [<c0146384>] ? up+0x14/0x40
[ 2845.743742]  [<c015041b>] ? trace_hardirqs_off+0xb/0x10
[ 2845.743742]  [<c046a3d7>] ? __mutex_unlock_slowpath+0x97/0x160
[ 2845.743742]  [<c046a563>] ? mutex_trylock+0xb3/0x180
[ 2845.743742]  [<c046a4a8>] ? mutex_unlock+0x8/0x10
[ 2845.743742]  [<c015b991>] smp_call_function_many+0x151/0x200
[ 2845.743742]  [<c010a1a0>] ? stop_this_cpu+0x0/0x40
[ 2845.743742]  [<c015ba61>] smp_call_function+0x21/0x30
[ 2845.743742]  [<c01137ae>] native_smp_send_stop+0x1e/0x50
[ 2845.743742]  [<c012e0f5>] panic+0x55/0x110
[ 2845.743742]  [<c01065a8>] oops_end+0xb8/0xc0
[ 2845.743742]  [<c010668f>] die+0x4f/0x70
[ 2845.743742]  [<c011a8c9>] do_page_fault+0x269/0x610
[ 2845.743742]  [<c011a660>] ? do_page_fault+0x0/0x610
[ 2845.743742]  [<c046cbaf>] error_code+0x77/0x7c
[ 2845.743742]  [<c015515c>] ? __lock_acquire+0x6c/0xa80
[ 2845.743742]  [<c0153732>] ? trace_hardirqs_on_caller+0x72/0x1c0
[ 2845.743742]  [<c0155be6>] lock_acquire+0x76/0xa0
[ 2845.743742]  [<c03e1aad>] ? skb_dequeue+0x1d/0x70
[ 2845.743742]  [<c046c885>] _spin_lock_irqsave+0x45/0x80
[ 2845.743742]  [<c03e1aad>] ? skb_dequeue+0x1d/0x70
[ 2845.743742]  [<c03e1aad>] skb_dequeue+0x1d/0x70
[ 2845.743742]  [<c03e1f94>] skb_queue_purge+0x14/0x20
[ 2845.743742]  [<f8171f5a>] hci_conn_del+0x10a/0x1c0 [bluetooth]
[ 2845.743742]  [<f81399c9>] ? l2cap_disconn_ind+0x59/0xb0 [l2cap]
[ 2845.743742]  [<f81795ce>] ? hci_conn_del_sysfs+0x8e/0xd0 [bluetooth]
[ 2845.743742]  [<f8175758>] hci_event_packet+0x5f8/0x31c0 [bluetooth]
[ 2845.743742]  [<c03dfe19>] ? sock_def_readable+0x59/0x80
[ 2845.743742]  [<c046c14d>] ? _read_unlock+0x1d/0x20
[ 2845.743742]  [<f8178aa9>] ? hci_send_to_sock+0xe9/0x1d0 [bluetooth]
[ 2845.743742]  [<c015388b>] ? trace_hardirqs_on+0xb/0x10
[ 2845.743742]  [<f816fa6a>] hci_rx_task+0x2ba/0x490 [bluetooth]
[ 2845.743742]  [<c0133661>] ? tasklet_action+0x31/0xc0
[ 2845.743742]  [<c013367c>] tasklet_action+0x4c/0xc0
[ 2845.743742]  [<c0132eb7>] __do_softirq+0xa7/0x170
[ 2845.743742]  [<c0116dec>] ? ack_apic_level+0x5c/0x1c0
[ 2845.743742]  [<c0132fd7>] do_softirq+0x57/0x60
[ 2845.743742]  [<c01333dc>] irq_exit+0x7c/0x90
[ 2845.743742]  [<c01055bb>] do_IRQ+0x4b/0x90
[ 2845.743742]  [<c01333d5>] ? irq_exit+0x75/0x90
[ 2845.743742]  [<c010392c>] common_interrupt+0x2c/0x34
[ 2845.743742]  [<c010a14f>] ? mwait_idle+0x4f/0x70
[ 2845.743742]  [<c0101c05>] cpu_idle+0x65/0xb0
[ 2845.743742]  [<c045731e>] rest_init+0x4e/0x60
[ 2845.743742] ---[ end trace 4c985b38f02227a0 ]---
[ 2845.743742] ------------[ cut here ]------------
[ 2845.743742] WARNING: at kernel/smp.c:226 smp_call_function_single+0x8e/0x110()
[ 2845.743742] Hardware name: Dell DM051
[ 2845.743742] Modules linked in: btusb netconsole snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss rfcomm l2cap bluetooth vfat fuse snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm pl2303 snd_timer psmouse usbserial snd 3c59x e100 serio_raw soundcore i2c_i801 intel_agp mii agpgart snd_page_alloc rtc_cmos rtc_core thermal processor rtc_lib button thermal_sys sg evdev
[ 2845.743742] Pid: 0, comm: swapper Tainted: G      D W  2.6.29-rc5-smp #54
[ 2845.743742] Call Trace:
[ 2845.743742]  [<c012e076>] warn_slowpath+0x86/0xa0
[ 2845.743742]  [<c012e000>] ? warn_slowpath+0x10/0xa0
[ 2845.743742]  [<c015041b>] ? trace_hardirqs_off+0xb/0x10
[ 2845.743742]  [<c0146384>] ? up+0x14/0x40
[ 2845.743742]  [<c012e661>] ? release_console_sem+0x31/0x1e0
[ 2845.743742]  [<c046c8ab>] ? _spin_lock_irqsave+0x6b/0x80
[ 2845.743742]  [<c015041b>] ? trace_hardirqs_off+0xb/0x10
[ 2845.743742]  [<c046c900>] ? _read_lock_irqsave+0x40/0x80
[ 2845.743742]  [<c012e7f2>] ? release_console_sem+0x1c2/0x1e0
[ 2845.743742]  [<c0146384>] ? up+0x14/0x40
[ 2845.743742]  [<c015b7be>] smp_call_function_single+0x8e/0x110
[ 2845.743742]  [<c010a1a0>] ? stop_this_cpu+0x0/0x40
[ 2845.743742]  [<c026d23f>] ? cpumask_next_and+0x1f/0x40
[ 2845.743742]  [<c015b95a>] smp_call_function_many+0x11a/0x200
[ 2845.743742]  [<c010a1a0>] ? stop_this_cpu+0x0/0x40
[ 2845.743742]  [<c015ba61>] smp_call_function+0x21/0x30
[ 2845.743742]  [<c01137ae>] native_smp_send_stop+0x1e/0x50
[ 2845.743742]  [<c012e0f5>] panic+0x55/0x110
[ 2845.743742]  [<c01065a8>] oops_end+0xb8/0xc0
[ 2845.743742]  [<c010668f>] die+0x4f/0x70
[ 2845.743742]  [<c011a8c9>] do_page_fault+0x269/0x610
[ 2845.743742]  [<c011a660>] ? do_page_fault+0x0/0x610
[ 2845.743742]  [<c046cbaf>] error_code+0x77/0x7c
[ 2845.743742]  [<c015515c>] ? __lock_acquire+0x6c/0xa80
[ 2845.743742]  [<c0153732>] ? trace_hardirqs_on_caller+0x72/0x1c0
[ 2845.743742]  [<c0155be6>] lock_acquire+0x76/0xa0
[ 2845.743742]  [<c03e1aad>] ? skb_dequeue+0x1d/0x70
[ 2845.743742]  [<c046c885>] _spin_lock_irqsave+0x45/0x80
[ 2845.743742]  [<c03e1aad>] ? skb_dequeue+0x1d/0x70
[ 2845.743742]  [<c03e1aad>] skb_dequeue+0x1d/0x70
[ 2845.743742]  [<c03e1f94>] skb_queue_purge+0x14/0x20
[ 2845.743742]  [<f8171f5a>] hci_conn_del+0x10a/0x1c0 [bluetooth]
[ 2845.743742]  [<f81399c9>] ? l2cap_disconn_ind+0x59/0xb0 [l2cap]
[ 2845.743742]  [<f81795ce>] ? hci_conn_del_sysfs+0x8e/0xd0 [bluetooth]
[ 2845.743742]  [<f8175758>] hci_event_packet+0x5f8/0x31c0 [bluetooth]
[ 2845.743742]  [<c03dfe19>] ? sock_def_readable+0x59/0x80
[ 2845.743742]  [<c046c14d>] ? _read_unlock+0x1d/0x20
[ 2845.743742]  [<f8178aa9>] ? hci_send_to_sock+0xe9/0x1d0 [bluetooth]
[ 2845.743742]  [<c015388b>] ? trace_hardirqs_on+0xb/0x10
[ 2845.743742]  [<f816fa6a>] hci_rx_task+0x2ba/0x490 [bluetooth]
[ 2845.743742]  [<c0133661>] ? tasklet_action+0x31/0xc0
[ 2845.743742]  [<c013367c>] tasklet_action+0x4c/0xc0
[ 2845.743742]  [<c0132eb7>] __do_softirq+0xa7/0x170
[ 2845.743742]  [<c0116dec>] ? ack_apic_level+0x5c/0x1c0
[ 2845.743742]  [<c0132fd7>] do_softirq+0x57/0x60
[ 2845.743742]  [<c01333dc>] irq_exit+0x7c/0x90
[ 2845.743742]  [<c01055bb>] do_IRQ+0x4b/0x90
[ 2845.743742]  [<c01333d5>] ? irq_exit+0x75/0x90
[ 2845.743742]  [<c010392c>] common_interrupt+0x2c/0x34
[ 2845.743742]  [<c010a14f>] ? mwait_idle+0x4f/0x70
[ 2845.743742]  [<c0101c05>] cpu_idle+0x65/0xb0
[ 2845.743742]  [<c045731e>] rest_init+0x4e/0x60
[ 2845.743742] ---[ end trace 4c985b38f02227a1 ]---
[ 2845.743742] Rebooting in 3 seconds..

My logitec bluetooth mouse trying connect to pc, but
pc side reject the connection again and again. then panic happens.

The reason is due to hci_conn_del_sysfs now called in hci_event_packet,
the del work is done in a workqueue, so it's possible done before
skb_queue_purge called.

I move the hci_conn_del_sysfs after skb_queue_purge just as that before
marcel's commit.

Remove the hci_conn_del_sysfs in hci_conn_hash_flush as well due to
hci_conn_del will deal with the work.
Signed-off-by: NDave Young <hidave.darkstar@gmail.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

Userspace pairing code can be simplified if it doesn't have to fall
back to using L2CAP_LM in the case of L2CAP raw sockets. This patch
allows the BT_SECURITY socket option to be used for these sockets.
Signed-off-by: NJohan Hedberg <johan.hedberg@nokia.com>
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

The CID value of L2CAP sockets need to be set to zero. All userspace
applications do this via memset() on the sockaddr_l2 structure. The
RFCOMM implementation uses in-kernel L2CAP sockets and so it has to
make sure that l2_cid is set to zero.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

In the future the L2CAP layer will have full support for fixed channels
and right now it already can export the channel assignment, but for the
functions bind() and connect() the usage of only CID 0 is allowed. This
allows an easy detection if the kernel supports fixed channels or not,
because otherwise it would impossible for application to tell.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

When BT_DEFER_SETUP is enabled on a RFCOMM socket, then switch its
current state from BT_OPEN to BT_CONNECT2. This gives the Bluetooth
core a unified way to handle L2CAP and RFCOMM sockets. The BT_CONNECT2
state is designated for incoming connections.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

When BT_DEFER_SETUP has been enabled on a Bluetooth socket it keeps
signaling POLLIN all the time. This is a wrong behavior. The POLLIN
should only be signaled if the client socket is in BT_CONNECT2 state
and the parent has been BT_DEFER_SETUP enabled.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>

The authentication requirement got only updated when the security level
increased. This is a wrong behavior. The authentication requirement is
read by the Bluetooth daemon to make proper decisions when handling the
IO capabilities exchange. So set the value that is currently expected by
the higher layers like L2CAP and RFCOMM.
Signed-off-by: NMarcel Holtmann <marcel@holtmann.org>