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-rw-r--r--include/asm-x86_64/proto.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-x86_64/proto.h b/include/asm-x86_64/proto.h
index f64949fae61..78427021d94 100644
--- a/include/asm-x86_64/proto.h
+++ b/include/asm-x86_64/proto.h
@@ -92,6 +92,7 @@ extern unsigned long table_start, table_end;
extern int exception_trace;
extern unsigned cpu_khz;
+extern unsigned tsc_khz;
extern void no_iommu_init(void);
extern int force_iommu, no_iommu;