linux-kernel - [RFC PATCH 04/20] MSI: Remove the redundant irq_set_chip

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Date:	Tue, 12 Aug 2014 15:25:57 +0800
From:	Yijing Wang <wangyijing@...wei.com>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
CC:	<linux-kernel@...r.kernel.org>, Xinwei Hu <huxinwei@...wei.com>,
	Wuyun <wuyun.wu@...wei.com>, <linux-pci@...r.kernel.org>,
	Marc Zyngier <marc.zyngier@....com>,
	<linux-arm-kernel@...ts.infradead.org>,
	Russell King <linux@....linux.org.uk>,
	<arnab.basu@...escale.com>, <x86@...nel.org>,
	"Arnd Bergmann" <arnd@...db.de>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	<xen-devel@...ts.xenproject.org>, Joerg Roedel <joro@...tes.org>,
	<iommu@...ts.linux-foundation.org>, <linux-mips@...ux-mips.org>,
	"Benjamin Herrenschmidt" <benh@...nel.crashing.org>,
	<linuxppc-dev@...ts.ozlabs.org>, <linux-s390@...r.kernel.org>,
	Sebastian Ott <sebott@...ux.vnet.ibm.com>,
	"Tony Luck" <tony.luck@...el.com>, <linux-ia64@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>,
	<sparclinux@...r.kernel.org>, Chris Metcalf <cmetcalf@...era.com>,
	Yijing Wang <wangyijing@...wei.com>
Subject: [RFC PATCH 04/20] MSI: Remove the redundant irq_set_chip_data()

Currently, pcie-designware, pcie-rcar, pci-tegra drivers
use irq chip_data to the msi_chip pointer. They already call
irq_set_chip_data() in their own MSI irq map functions.
So irq_set_chip_data() in arch_setup_msi_irq() is useless.

Signed-off-by: Yijing Wang <wangyijing@...wei.com>
---
 drivers/pci/msi.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 782b242..242d775 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -41,8 +41,6 @@ int __weak arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
 	if (err < 0)
 		return err;
 
-	irq_set_chip_data(desc->irq, chip);
-
 	return 0;
 }
 
-- 
1.7.1

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