You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

Ivo van Doorn 5f46c4d053 rt2x00: Upgrade queue->lock to use irqsave ... The queue->lock could be grabbed from interrupt context, which could lead to lockdep panic like this: kernel: ====================================================== kernel: [ INFO: soft-safe -> soft-unsafe lock order detected ] kernel: 2.6.25-0.95.rc4.fc9 #1 kernel: ------------------------------------------------------ kernel: rt2500pci/1251 [HC0[0]:SC0[1]:HE1:SE0] is trying to acquire: kernel: (&queue->lock){--..}, at: [<ffffffff88213339>] rt2x00queue_get_entry+0x5a/0x81 [rt2x00lib] kernel: kernel: and this task is already holding: kernel: (_xmit_IEEE80211){-...}, at: [<ffffffff8122e9a3>] __qdisc_run+0x84/0x1a9 kernel: which would create a new lock dependency: kernel: (_xmit_IEEE80211){-...} -> (&queue->lock){--..} kernel: kernel: but this new dependency connects a soft-irq-safe lock: kernel: (_xmit_ETHER){-+..} kernel: ... which became soft-irq-safe at: kernel: [<ffffffffffffffff>] 0xffffffffffffffff kernel: kernel: to a soft-irq-unsafe lock: kernel: (&queue->lock){--..} kernel: ... which became soft-irq-unsafe at: kernel: ... [<ffffffff810545a2>] __lock_acquire+0x62d/0xd63 kernel: [<ffffffff81054d36>] lock_acquire+0x5e/0x78 kernel: [<ffffffff812a1497>] _spin_lock+0x26/0x53 kernel: [<ffffffff88212f98>] rt2x00queue_reset+0x16/0x40 [rt2x00lib] kernel: [<ffffffff88212fd4>] rt2x00queue_alloc_entries+0x12/0xab [rt2x00lib] kernel: [<ffffffff88213091>] rt2x00queue_initialize+0x24/0xf2 [rt2x00lib] kernel: [<ffffffff88212036>] rt2x00lib_start+0x3b/0xd4 [rt2x00lib] kernel: [<ffffffff88212609>] rt2x00mac_start+0x18/0x1a [rt2x00lib] kernel: [<ffffffff881b9a4b>] ieee80211_open+0x1f3/0x46d [mac80211] kernel: [<ffffffff8121d980>] dev_open+0x4d/0x8b kernel: [<ffffffff8121d41e>] dev_change_flags+0xaf/0x172 kernel: [<ffffffff81224fc2>] do_setlink+0x276/0x338 kernel: [<ffffffff81225198>] rtnl_setlink+0x114/0x116 kernel: [<ffffffff812262fc>] rtnetlink_rcv_msg+0x1d8/0x1f9 kernel: [<ffffffff8123649a>] netlink_rcv_skb+0x3e/0xac kernel: [<ffffffff8122611a>] rtnetlink_rcv+0x29/0x33 kernel: [<ffffffff81235eed>] netlink_unicast+0x1fe/0x26b kernel: [<ffffffff81236224>] netlink_sendmsg+0x2ca/0x2dd kernel: [<ffffffff812103b3>] sock_sendmsg+0xfd/0x120 kernel: [<ffffffff812105a8>] sys_sendmsg+0x1d2/0x23c kernel: [<ffffffff8100c1c7>] tracesys+0xdc/0xe1 kernel: [<ffffffffffffffff>] 0xffffffffffffffff This can be fixed by using the irqsave/irqrestore versions during the queue->lock handling. Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>		17 years ago
..
Kconfig	rt2x00: Rename dscape -> mac80211	17 years ago
Makefile	rt2x00: Cleanup Makefile	17 years ago
rt2x00.h	rt2x00: Release rt2x00 2.1.3	17 years ago
rt2x00config.c	rt2x00: Remove HWMODE_{A,B,G}	17 years ago
rt2x00debug.c	rt2x00: Upgrade queue->lock to use irqsave	17 years ago
rt2x00debug.h	rt2x00: Update copyright notice	17 years ago
rt2x00dev.c	rt2x00: Use skbdesc fields for descriptor initialization	17 years ago
rt2x00dump.h	rt2x00: Queue handling overhaul	17 years ago
rt2x00firmware.c	rt2x00: Driver requiring firmware should select crc algo	17 years ago
rt2x00leds.c	rt2x00: Enable LED class support for rt2500usb/rt73usb	17 years ago
rt2x00leds.h	rt2x00: Enable LED class support for rt2500usb/rt73usb	17 years ago
rt2x00lib.h	rt2x00: Cleanup mode registration	17 years ago
rt2x00mac.c	rt2x00: Don't report driver generated frames to tx_status()	17 years ago
rt2x00pci.c	rt2x00: Initialize TX control field in data entries	17 years ago
rt2x00pci.h	rt2x00: Fix Descriptor DMA initialization	17 years ago
rt2x00queue.c	rt2x00: Upgrade queue->lock to use irqsave	17 years ago
rt2x00queue.h	rt2x00: Don't report driver generated frames to tx_status()	17 years ago
rt2x00reg.h	rt2x00: Rate structure overhaul	17 years ago
rt2x00rfkill.c	rt2x00: Update copyright notice	17 years ago
rt2x00usb.c	rt2x00:correct rx packet length for USB devices	17 years ago
rt2x00usb.h	rt2x00: Remove async vendor request calls from rt2x00usb	17 years ago
rt61pci.c	rt2x00: Only disable beaconing just before beacon update	17 years ago
rt61pci.h	rt2x00: Fix MAC address defines in rt61pci	17 years ago
rt73usb.c	rt2x00: Fix trivial log message	17 years ago
rt73usb.h	rt2x00: Rename dscape -> mac80211	17 years ago
rt2400pci.c	rt2x00: Only disable beaconing just before beacon update	17 years ago
rt2400pci.h	rt2x00: Rename dscape -> mac80211	17 years ago
rt2500pci.c	rt2x00: Only disable beaconing just before beacon update	17 years ago
rt2500pci.h	rt2x00: Rename dscape -> mac80211	17 years ago
rt2500usb.c	rt2x00: Fix trivial log message	17 years ago
rt2500usb.h	rt2x00: Rename dscape -> mac80211	17 years ago