linux-kernel - [PATCH v3 3/6] irqchip: irq-armada-370-xp: use PCI_MSI_DOORBELL

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Message-Id: <1455115621-22846-4-git-send-email-thomas.petazzoni@free-electrons.com>
Date:	Wed, 10 Feb 2016 15:46:58 +0100
From:	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
To:	Thomas Gleixner <tglx@...utronix.de>,
	Marc Zyngier <marc.zyngier@....com>,
	Jason Cooper <jason@...edaemon.net>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Andrew Lunn <andrew@...n.ch>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Gregory Clement <gregory.clement@...e-electrons.com>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Subject: [PATCH v3 3/6] irqchip: irq-armada-370-xp: use PCI_MSI_DOORBELL_START where appropriate

As suggested by Gregory Clement, this commit adjusts the
irq-armada-370-xp driver to use the PCI_MSI_DOORBELL_START define in
the armada_370_xp_handle_msi_irq() function, rather than hardcoding
its value.

Suggested-by: Gregory CLEMENT <gregory.clement@...e-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@...e-electrons.com>
---
 drivers/irqchip/irq-armada-370-xp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c
index e5738c5..f53eb71 100644
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -401,10 +401,10 @@ static void armada_370_xp_handle_msi_irq(struct pt_regs *regs, bool is_chained)
 
 		if (is_chained) {
 			irq = irq_find_mapping(armada_370_xp_msi_inner_domain,
-					       msinr - 16);
+					       msinr - PCI_MSI_DOORBELL_START);
 			generic_handle_irq(irq);
 		} else {
-			irq = msinr - 16;
+			irq = msinr - PCI_MSI_DOORBELL_START;
 			handle_domain_irq(armada_370_xp_msi_inner_domain,
 					  irq, regs);
 		}
-- 
2.6.4