From 42f4fdcd132e92d324ec4e0febc3476c17a8bbe7 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Sun, 16 Mar 2014 20:23:18 +0100
Subject: [PATCH] ARM: ixp4xx: avoid use of PCIBIOS_MIN_MEM in io.h
When using CONFIG_IXP4XX_INDIRECT_PCI, we run into a recursive
header file dependency between mach/io.h and asm/pci.h, resulting
in a build failure:
mach-ixp4xx/include/mach/io.h: In function 'is_pci_memory':
mach-ixp4xx/include/mach/io.h:53:18: error: 'PCIBIOS_MIN_MEM' undeclared (first use in this function)
return (addr >= PCIBIOS_MIN_MEM) && (addr <= 0x4FFFFFFF);
^
mach-ixp4xx/include/mach/io.h:53:18: note: each undeclared identifier is reported only once for each function it appears in
We can work around this by referencing the pcibios_min_mem variable
directly through an extern declaration, rather than using the macro.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
---
arch/arm/mach-ixp4xx/include/mach/io.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-ixp4xx/include/mach/io.h b/arch/arm/mach-ixp4xx/include/mach/io.h
index 5cf30d1b78d22..559c69a477317 100644
--- a/arch/arm/mach-ixp4xx/include/mach/io.h
+++ b/arch/arm/mach-ixp4xx/include/mach/io.h
@@ -48,9 +48,10 @@ extern int ixp4xx_pci_write(u32 addr, u32 cmd, u32 data);
* fallback to the default.
*/
+extern unsigned long pcibios_min_mem;
static inline int is_pci_memory(u32 addr)
{
- return (addr >= PCIBIOS_MIN_MEM) && (addr <= 0x4FFFFFFF);
+ return (addr >= pcibios_min_mem) && (addr <= 0x4FFFFFFF);
}
#define writeb(v, p) __indirect_writeb(v, p)
--
2.39.5