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crashdump: fix undefined reference to `elfcorehdr_addr'

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fix build bug introduced by 95b68dec0d "calgary iommu: use the first
kernels TCE tables in kdump":

arch/x86/kernel/built-in.o: In function `calgary_iommu_init':
(.init.text+0x8399): undefined reference to `elfcorehdr_addr'
arch/x86/kernel/built-in.o: In function `calgary_iommu_init':
(.init.text+0x856c): undefined reference to `elfcorehdr_addr'
arch/x86/kernel/built-in.o: In function `detect_calgary':
(.init.text+0x8c68): undefined reference to `elfcorehdr_addr'
arch/x86/kernel/built-in.o: In function `detect_calgary':
(.init.text+0x8d0c): undefined reference to `elfcorehdr_addr'

make elfcorehdr_addr a generally available symbol.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2008-07-26 11:22:33 +02:00
parent 88bef5a407
commit 36ac26171a
1 changed files with 6 additions and 0 deletions
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6
include/linux/crash_dump.h
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@ -8,7 +8,13 @@
#include <linux/proc_fs.h>
#define ELFCORE_ADDR_MAX (-1ULL)
#ifdef CONFIG_PROC_VMCORE
extern unsigned long long elfcorehdr_addr;
#else
static const unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX;
#endif
extern ssize_t copy_oldmem_page(unsigned long, char *, size_t,
unsigned long, int);
extern const struct file_operations proc_vmcore_operations;