From 0fec954249b55318aced45a0e47e1dd023986e5f Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Wed, 11 Dec 2013 09:02:25 +0200 Subject: [PATCH] iwlwifi: pcie: determine the interrupt type in the handler Instead of having: iwl_pcie_irq_handler iwl_pcie_isr_ict iwl_pcie_isr_non_ict we now have: iwl_pcie_irq_handler: if (use_ict)) iwl_pcie_int_cause_ict; else iwl_pcie_int_cause_non_ict; This is much clearer. Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/pcie/rx.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c index 5044fbd..58d3f64 100644 --- a/drivers/net/wireless/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/iwlwifi/pcie/rx.c @@ -807,8 +807,7 @@ static void iwl_pcie_irq_handle_error(struct iwl_trans *trans) wake_up(&trans_pcie->wait_command_queue); } -/* legacy (non-ICT) ISR. Assumes that trans_pcie->irq_lock is held */ -static irqreturn_t iwl_pcie_isr_non_ict(struct iwl_trans *trans) +static irqreturn_t iwl_pcie_int_cause_non_ict(struct iwl_trans *trans) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); u32 inta; @@ -876,7 +875,7 @@ static irqreturn_t iwl_pcie_isr_non_ict(struct iwl_trans *trans) * the interrupt we need to service, driver will set the entries back to 0 and * set index. */ -static irqreturn_t iwl_pcie_isr_ict(struct iwl_trans *trans) +static irqreturn_t iwl_pcie_int_cause_ict(struct iwl_trans *trans) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); irqreturn_t ret; @@ -884,14 +883,6 @@ static irqreturn_t iwl_pcie_isr_ict(struct iwl_trans *trans) u32 val = 0; u32 read; - /* dram interrupt table not set yet, - * use legacy interrupt. - */ - if (unlikely(!trans_pcie->use_ict)) { - ret = iwl_pcie_isr_non_ict(trans); - return ret; - } - trace_iwlwifi_dev_irq(trans->dev); /* Ignore interrupt if there's nothing in NIC to service. @@ -977,7 +968,14 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id) spin_lock_irqsave(&trans_pcie->irq_lock, flags); - ret = iwl_pcie_isr_ict(trans); + /* dram interrupt table not set yet, + * use legacy interrupt. + */ + if (likely(trans_pcie->use_ict)) + ret = iwl_pcie_int_cause_ict(trans); + else + ret = iwl_pcie_int_cause_non_ict(trans); + if (ret != IRQ_WAKE_THREAD) { spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); return ret; -- 2.7.4