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authorDavid Rientjes <rientjes@google.com>2012-10-01 20:38:47 -0700
committerH. Peter Anvin <hpa@linux.intel.com>2012-10-01 20:41:43 -0700
commit3dfd8235002727dbd759bb0f80f8ac862f392071 (patch)
treecbce0faa15367cb4337158a45054502f6c103acb /arch/x86/kernel/setup.c
parent8347bbecf3518aa1518f6157e661812a35775130 (diff)
ACPI: Fix build when disabled
"ACPI: Store valid ACPI tables passed via early initrd in reserved memblock areas" breaks the build if either CONFIG_ACPI or CONFIG_BLK_DEV_INITRD is disabled: arch/x86/kernel/setup.c: In function 'setup_arch': arch/x86/kernel/setup.c:944: error: implicit declaration of function 'acpi_initrd_override' or arch/x86/built-in.o: In function `setup_arch': (.init.text+0x1397): undefined reference to `initrd_start' arch/x86/built-in.o: In function `setup_arch': (.init.text+0x139e): undefined reference to `initrd_end' The dummy acpi_initrd_override() function in acpi.h isn't defined without CONFIG_ACPI and initrd_{start,end} are declared but not defined without CONFIG_BLK_DEV_INITRD. [ hpa: applying this as a fix, but this really should be done cleaner ] Signed-off-by: David Rientjes <rientjes@google.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.00.1210012032470.31644@chino.kir.corp.google.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: Thomas Renninger <trenn@suse.de> Cc: Len Brown <lenb@kernel.org>
Diffstat (limited to 'arch/x86/kernel/setup.c')
-rw-r--r--arch/x86/kernel/setup.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 764e543b229..bf82c1e0546 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -941,7 +941,9 @@ void __init setup_arch(char **cmdline_p)
reserve_initrd();
+#if defined(CONFIG_ACPI) && defined(CONFIG_BLK_DEV_INITRD)
acpi_initrd_override((void *)initrd_start, initrd_end - initrd_start);
+#endif
reserve_crashkernel();