linux-kernel - [RFC PATCH 01/11] drivers: acpi: iort: fix struct pci

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Date:	Thu, 14 Apr 2016 18:25:33 +0100
From:	Lorenzo Pieralisi <lorenzo.pieralisi@....com>
To:	iommu@...ts.linux-foundation.org
Cc:	Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
	Tomasz Nowicki <tn@...ihalf.com>,
	Will Deacon <will.deacon@....com>,
	Marc Zyngier <marc.zyngier@....com>,
	Robin Murphy <robin.murphy@....com>,
	Joerg Roedel <joro@...tes.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Hanjun Guo <hanjun.guo@...aro.org>,
	Jon Masters <jcm@...hat.com>,
	Sinan Kaya <okaya@...eaurora.org>, linux-acpi@...r.kernel.org,
	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: [RFC PATCH 01/11] drivers: acpi: iort: fix struct pci_dev compiler warnings

When the kernel is configured with no IORT support the compilation
issues the following warnings:

In file included from drivers/irqchip/irq-gic-v3-its-pci-msi.c:19:0:
include/linux/iort.h:28:33: warning: 'struct pci_dev' declared inside
parameter list
 u32 iort_pci_get_msi_rid(struct pci_dev *pdev, u32 req_id);
                                 ^
include/linux/iort.h:28:33: warning: its scope is only this definition
or declaration, which is probably not what you want
include/linux/iort.h:29:50: warning: 'struct pci_dev' declared inside
parameter list
 struct fwnode_handle *iort_pci_get_domain(struct pci_dev *pdev, u32
req_id);

This patch fixes the warnings with a struct pci_dev forward declaration
in the IORT header file.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Cc: Tomasz Nowicki <tn@...ihalf.com>
---
 include/linux/iort.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/iort.h b/include/linux/iort.h
index 7441941..b15fe1a 100644
--- a/include/linux/iort.h
+++ b/include/linux/iort.h
@@ -21,6 +21,7 @@
 
 #include <linux/acpi.h>
 
+struct pci_dev;
 struct fwnode_handle;
 int iort_register_domain_token(int trans_id, struct fwnode_handle *fw_node);
 void iort_deregister_domain_token(int trans_id);
-- 
2.6.4