linux-kernel - [PATCH -next] asm-generic/iomap.h: add stubs for pci iomap/iounmap

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Date:	Mon, 18 Jul 2011 09:55:57 -0700
From:	Randy Dunlap <rdunlap@...otime.net>
To:	Stephen Rothwell <sfr@...b.auug.org.au>,
	netdev <netdev@...r.kernel.org>
Cc:	linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	davem@...emloft.net, Jonas Bonn <jonas@...thpole.se>,
	Arnd Bergmann <arnd@...db.de>
Subject: [PATCH -next] asm-generic/iomap.h: add stubs for pci iomap/iounmap

From: Randy Dunlap <rdunlap@...otime.net>

When CONFIG_PCI is not enabled, CONFIG_EISA=y, and CONFIG_GENERIC_IOMAP=y,
drivers/net/3c59x.c build fails due to a recent small change to
<asm-generic/iomap.h> that surrounds pci_iomap() and pci_iounmap()
with #ifdef CONFIG_PCI/#endif.  Since that patch to iomap.h looks
correct, add stubs for pci_iomap() and pci_iounmap() with CONFIG_PCI
is not enabled to fix the build errors.

drivers/net/3c59x.c:1026: error: implicit declaration of function 'pci_iomap'
drivers/net/3c59x.c:1038: error: implicit declaration of function 'pci_iounmap'

Signed-off-by: Randy Dunlap <rdunlap@...otime.net>
Cc: Jonas Bonn <jonas@...thpole.se>
Cc: Arnd Bergmann <arnd@...db.de>
---
 include/asm-generic/iomap.h |    8 ++++++++
 1 file changed, 8 insertions(+)

--- linux-next-20110718.orig/include/asm-generic/iomap.h
+++ linux-next-20110718/include/asm-generic/iomap.h
@@ -71,6 +71,14 @@ extern void ioport_unmap(void __iomem *)
 struct pci_dev;
 extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
+#else
+struct pci_dev;
+static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
+{
+	return NULL;
+}
+static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
+{ }
 #endif
 
 #endif
--
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