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authorIngo Molnar <mingo@elte.hu>2008-07-26 11:22:33 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-26 11:26:23 +0200
commit36ac26171afa8dbf29226199699fe955d4a0b6f6 (patch)
treeaf89e8bcff79b088d2a182283312e4bac9f934c3 /include
parent88bef5a4074e0568cf54df410f41065c06694d8a (diff)
crashdump: fix undefined reference to `elfcorehdr_addr'
fix build bug introduced by 95b68dec0d5 "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>
Diffstat (limited to 'include')
-rw-r--r--include/linux/crash_dump.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h
index 6cd39a927e1..025e4f57510 100644
--- a/include/linux/crash_dump.h
+++ b/include/linux/crash_dump.h
@@ -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;