diff --git a/arch/loongarch/kernel/unwind_orc.c b/arch/loongarch/kernel/unwind_orc.c
index ad7e63f49504..85c2fcb76930 100644
--- a/arch/loongarch/kernel/unwind_orc.c
+++ b/arch/loongarch/kernel/unwind_orc.c
@@ -358,8 +358,6 @@ static bool is_entry_func(unsigned long addr)
 
 static inline unsigned long bt_address(unsigned long ra)
 {
-	extern unsigned long eentry;
-
 #if defined(CONFIG_NUMA) && !defined(CONFIG_PREEMPT_RT)
 	int cpu;
 	int vec_sz = sizeof(exception_handlers);
diff --git a/arch/loongarch/kernel/unwind_prologue.c b/arch/loongarch/kernel/unwind_prologue.c
index ee1c29686ab0..da07acad7973 100644
--- a/arch/loongarch/kernel/unwind_prologue.c
+++ b/arch/loongarch/kernel/unwind_prologue.c
@@ -23,10 +23,6 @@ extern const int unwind_hint_lasx;
 extern const int unwind_hint_lbt;
 extern const int unwind_hint_ri;
 extern const int unwind_hint_watch;
-extern unsigned long eentry;
-#ifdef CONFIG_NUMA
-extern unsigned long pcpu_handlers[NR_CPUS];
-#endif
 
 static inline bool scan_handlers(unsigned long entry_offset)
 {
diff --git a/arch/loongarch/mm/tlb.c b/arch/loongarch/mm/tlb.c
index f46c15d6e7ea..24add95ecb65 100644
--- a/arch/loongarch/mm/tlb.c
+++ b/arch/loongarch/mm/tlb.c
@@ -260,7 +260,6 @@ static void output_pgtable_bits_defines(void)
 #ifdef CONFIG_NUMA
 unsigned long pcpu_handlers[NR_CPUS];
 #endif
-extern long exception_handlers[VECSIZE * 128 / sizeof(long)];
 
 static void setup_tlb_handler(int cpu)
 {