From 09f40aeddd77ad07093516b267ae7b4aebcc57bb Mon Sep 17 00:00:00 2001 From: Mark Rustad Date: Tue, 14 Jan 2014 18:53:11 -0800 Subject: [PATCH] ixgbe: Indicate removal state explicitly Add a bit, __IXGBE_REMOVING, to indicate that the module is being removed. The __IXGBE_DOWN bit had been overloaded for this purpose, but that leads to trouble. A few places now check both __IXGBE_DOWN and __IXGBE_REMOVE. Notably, setting either bit will prevent service task execution. Signed-off-by: Mark Rustad Tested-by: Phil Schmitt Signed-off-by: Aaron Brown Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/ixgbe/ixgbe.h | 1 + drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 12 ++++++++---- 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h index 49531cd..19d2774 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h @@ -798,6 +798,7 @@ enum ixgbe_state_t { __IXGBE_TESTING, __IXGBE_RESETTING, __IXGBE_DOWN, + __IXGBE_REMOVING, __IXGBE_SERVICE_SCHED, __IXGBE_IN_SFP_INIT, __IXGBE_PTP_RUNNING, diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 5bcc870..bf7d177 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -278,6 +278,7 @@ static void ixgbe_check_minimum_link(struct ixgbe_adapter *adapter, static void ixgbe_service_event_schedule(struct ixgbe_adapter *adapter) { if (!test_bit(__IXGBE_DOWN, &adapter->state) && + !test_bit(__IXGBE_REMOVING, &adapter->state) && !test_and_set_bit(__IXGBE_SERVICE_SCHED, &adapter->state)) schedule_work(&adapter->service_task); } @@ -5874,8 +5875,9 @@ static void ixgbe_check_hang_subtask(struct ixgbe_adapter *adapter) u64 eics = 0; int i; - /* If we're down or resetting, just bail */ + /* If we're down, removing or resetting, just bail */ if (test_bit(__IXGBE_DOWN, &adapter->state) || + test_bit(__IXGBE_REMOVING, &adapter->state) || test_bit(__IXGBE_RESETTING, &adapter->state)) return; @@ -6122,8 +6124,9 @@ static void ixgbe_spoof_check(struct ixgbe_adapter *adapter) **/ static void ixgbe_watchdog_subtask(struct ixgbe_adapter *adapter) { - /* if interface is down do nothing */ + /* if interface is down, removing or resetting, do nothing */ if (test_bit(__IXGBE_DOWN, &adapter->state) || + test_bit(__IXGBE_REMOVING, &adapter->state) || test_bit(__IXGBE_RESETTING, &adapter->state)) return; @@ -6341,8 +6344,9 @@ static void ixgbe_reset_subtask(struct ixgbe_adapter *adapter) adapter->flags2 &= ~IXGBE_FLAG2_RESET_REQUESTED; - /* If we're already down or resetting, just bail */ + /* If we're already down, removing or resetting, just bail */ if (test_bit(__IXGBE_DOWN, &adapter->state) || + test_bit(__IXGBE_REMOVING, &adapter->state) || test_bit(__IXGBE_RESETTING, &adapter->state)) return; @@ -8210,7 +8214,7 @@ static void ixgbe_remove(struct pci_dev *pdev) ixgbe_dbg_adapter_exit(adapter); - set_bit(__IXGBE_DOWN, &adapter->state); + set_bit(__IXGBE_REMOVING, &adapter->state); cancel_work_sync(&adapter->service_task); -- 2.7.4