Moved interrupt masking to before requesting the interrupt from the OS. Moved interrupt enable to after netif_poll_enable. This fixes a racy BUG() where polling would be running on another CPU at the same time that netif_poll_enable would run.
Signed-off-by: Jesse Brandeburg <[EMAIL PROTECTED]> Signed-off-by: Auke Kok <[EMAIL PROTECTED]> Signed-off-by: John Ronciak <[EMAIL PROTECTED]> --- drivers/net/ixgb/ixgb_main.c | 9 +++++---- 1 files changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c index 0a0c876..954894b 100644 --- a/drivers/net/ixgb/ixgb_main.c +++ b/drivers/net/ixgb/ixgb_main.c @@ -247,6 +247,9 @@ ixgb_up(struct ixgb_adapter *adapter) ixgb_configure_rx(adapter); ixgb_alloc_rx_buffers(adapter); + /* disable interrupts and get the hardware into a known state */ + IXGB_WRITE_REG(&adapter->hw, IMC, 0xffffffff); + #ifdef CONFIG_PCI_MSI { boolean_t pcix = (IXGB_READ_REG(&adapter->hw, STATUS) & @@ -272,9 +275,6 @@ ixgb_up(struct ixgb_adapter *adapter) return err; } - /* disable interrupts and get the hardware into a known state */ - IXGB_WRITE_REG(&adapter->hw, IMC, 0xffffffff); - if((hw->max_frame_size != max_frame) || (hw->max_frame_size != (IXGB_READ_REG(hw, MFS) >> IXGB_MFS_SHIFT))) { @@ -295,11 +295,12 @@ ixgb_up(struct ixgb_adapter *adapter) } mod_timer(&adapter->watchdog_timer, jiffies); - ixgb_irq_enable(adapter); #ifdef CONFIG_IXGB_NAPI netif_poll_enable(netdev); #endif + ixgb_irq_enable(adapter); + return 0; } -- Auke Kok <[EMAIL PROTECTED]> - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html