From 542cc7937e6af73cb2edc455a0e456d22e254abb Mon Sep 17 00:00:00 2001 From: Jay Sternberg Date: Fri, 8 May 2009 13:44:46 -0700 Subject: iwlwifi: fix device id registration for 6000 series 2x2 devices Add device ids for 2x2 devices. Also fix antenna usage because these devices use antennas A and B, not B and C. Signed-off-by: Jay Sternberg Signed-off-by: Reinette Chatre Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-agn.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/net/wireless/iwlwifi/iwl-agn.c') diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 1ef4192207a5..3bb28db4a40f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -3636,7 +3636,9 @@ static struct pci_device_id iwl_hw_card_ids[] = { {IWL_PCI_DEVICE(0x0085, 0x1112, iwl6000_2ag_cfg)}, {IWL_PCI_DEVICE(0x0082, 0x1122, iwl6000_2ag_cfg)}, {IWL_PCI_DEVICE(0x422B, PCI_ANY_ID, iwl6000_3agn_cfg)}, + {IWL_PCI_DEVICE(0x422C, PCI_ANY_ID, iwl6000_2agn_cfg)}, {IWL_PCI_DEVICE(0x4238, PCI_ANY_ID, iwl6000_3agn_cfg)}, + {IWL_PCI_DEVICE(0x4239, PCI_ANY_ID, iwl6000_2agn_cfg)}, {IWL_PCI_DEVICE(0x0082, PCI_ANY_ID, iwl6000_2agn_cfg)}, {IWL_PCI_DEVICE(0x0085, PCI_ANY_ID, iwl6000_3agn_cfg)}, {IWL_PCI_DEVICE(0x0086, PCI_ANY_ID, iwl6050_3agn_cfg)}, -- cgit v1.2.1 From fbc9f97bbf5e1eaee562eba93dc60faaff3f3bfa Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Fri, 15 May 2009 16:13:46 -0700 Subject: iwlwifi: do not cancel delayed work inside spin_lock_irqsave Calling cancel_delayed_work() from inside spin_lock_irqsave, introduces a potential deadlock. As explained by Johannes Berg A - lock T - timer phase CPU 1 CPU 2 --------------------------------------------- some place that calls cancel_timer_sync() (which is the | code) lock-irq(A) | "lock-irq"(T) | "unlock"(T) | wait(T) unlock(A) timer softirq "lock"(T) run(T) "unlock"(T) irq handler lock(A) unlock(A) Now all that again, interleaved, leading to deadlock: lock-irq(A) "lock"(T) run(T) IRQ during or maybe before run(T) --> lock(A) "lock-irq"(T) wait(T) We fix this by moving the call to cancel_delayed_work() into workqueue. There are cases where the work may not actually be queued or running at the time we are trying to cancel it, but cancel_delayed_work() is able to deal with this. Also cleanup iwl_set_mode related to this call. This function (iwl_set_mode) is only called when bringing interface up and there will thus not be any scanning done. No need to try to cancel scanning. Fixes http://bugzilla.kernel.org/show_bug.cgi?id=13224, which was also reported at http://marc.info/?l=linux-wireless&m=124081921903223&w=2 . Tested-by: Miles Lane Signed-off-by: Reinette Chatre Acked-by: Zhu Yi Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-agn.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'drivers/net/wireless/iwlwifi/iwl-agn.c') diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 3bb28db4a40f..f46ba2475776 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -669,13 +669,6 @@ static int iwl_set_mode(struct iwl_priv *priv, int mode) if (!iwl_is_ready_rf(priv)) return -EAGAIN; - cancel_delayed_work(&priv->scan_check); - if (iwl_scan_cancel_timeout(priv, 100)) { - IWL_WARN(priv, "Aborted scan still in progress after 100ms\n"); - IWL_DEBUG_MAC80211(priv, "leaving - scan abort failed.\n"); - return -EAGAIN; - } - iwl_commit_rxon(priv); return 0; -- cgit v1.2.1