[PATCH 6.18 126/314] LoongArch: Remove some extern variables in source files

Sasha Levin
2026-03-10T11:26:40Z

From: Tiezhu Yang <yangtiezhu@loongson.cn>

[ Upstream commit 0e6f596d6ac635e80bb265d587b2287ef8fa1cd6 ]

There are declarations of the variable "eentry", "pcpu_handlers[]" and
"exception_handlers[]" in asm/setup.h, the source files already include
this header file directly or indirectly, so no need to declare them in
the source files, just remove the code.

Cc: stable@vger.kernel.org
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/loongarch/kernel/unwind_orc.c | 2 --
arch/loongarch/kernel/unwind_prologue.c | 4 ----
arch/loongarch/mm/tlb.c | 1 -
3 files changed, 7 deletions(-)

diff --git a/arch/loongarch/kernel/unwind_orc.c b/arch/loongarch/kernel/unwind_orc.c
index ad7e63f495045..85c2fcb76930c 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 ee1c29686ab05..da07acad7973a 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 f46c15d6e7eae..24add95ecb65e 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)
{
--
2.51.0