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Message-Id: <20141112134120.922832265@linutronix.de>
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Date: Wed, 12 Nov 2014 13:43:12 -0000
From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Jiang Liu <jiang.liu@linux.intel.com>, Bjorn Helgaas <bhelgaas@google.com>,
        Grant Likely <grant.likely@linaro.org>,
        Marc Zyngier <marc.zyngier@arm.com>,
        Yingjoe Chen <yingjoe.chen@mediatek.com>,
        Yijing Wang <wangyijing@huawei.com>
Subject: [patch 13/16] PCI/MSI: Kill redundant call of irq_set_msi_desc() for
 MSI-X interrupts
References: <20141112133941.647950773@linutronix.de>
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 filename=pci-msi-kill-redundant-call-of-irq_set_msi_desc-for-msi-x-interrupts.patch
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From: Jiang Liu <jiang.liu@linux.intel.com>

It is the repsonsibility of arch_setup_msi_irq()/arch_setup_msi_irqs()
to call irq_set_msi_desc() to associate IRQ descriptors and MSI
descriptors. Kill the redundant call of irq_set_msi_desc() for MSI-X
interrupts in the PCI MSI core.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Yingjoe Chen <yingjoe.chen@mediatek.com>
Cc: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 drivers/pci/msi.c |    1 -
 1 file changed, 1 deletion(-)

Index: tip/drivers/pci/msi.c
===================================================================
--- tip.orig/drivers/pci/msi.c
+++ tip/drivers/pci/msi.c
@@ -667,7 +667,6 @@ static void msix_program_entries(struct
 						PCI_MSIX_ENTRY_VECTOR_CTRL;
 
 		entries[i].vector = entry->irq;
-		irq_set_msi_desc(entry->irq, entry);
 		entry->masked = readl(entry->mask_base + offset);
 		msix_mask_irq(entry, 1);
 		i++;