From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from asav4.altibox.net ([81.167.36.153]:45373 "EHLO asav4.altibox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752020Ab3LRXhr (ORCPT ); Wed, 18 Dec 2013 18:37:47 -0500 From: Henrik Austad To: linux-rt-users@vger.kernel.org Cc: linux-wireless@vger.kernel.org, Emmanuel Grumbach Subject: [PATCH 06/10] iwlwifi: pcie: determine the interrupt type in the handler Date: Thu, 19 Dec 2013 00:26:01 +0100 Message-Id: <1387409165-28319-7-git-send-email-henrik@austad.us> (sfid-20131219_003816_095964_F12502AB) In-Reply-To: <1387409165-28319-1-git-send-email-henrik@austad.us> References: <1387409165-28319-1-git-send-email-henrik@austad.us> Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Emmanuel Grumbach 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. Change-Id: Ieb99e8120c62749c06e3b2636aaf7ccbea8c72c5 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 cd96eb2..aea6202 100644 --- a/drivers/net/wireless/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/iwlwifi/pcie/rx.c @@ -810,8 +810,7 @@ static void iwl_pcie_irq_handle_error(struct iwl_trans *trans) local_bh_enable(); } -/* 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; @@ -884,7 +883,7 @@ none: * 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; @@ -892,14 +891,6 @@ 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. @@ -985,7 +976,14 @@ 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; -- 1.7.10.4