In the csky_cmpxchg_fixup function, it is incorrect to use the global variable csky_cmpxchg_stw to determine the address where the exception occurred.The global variable csky_cmpxchg_stw stores the opcode at the time of the exception, while &csky_cmpxchg_stw shows the address where the exception occurred.
Signed-off-by: Yang Li <[email protected]> --- V1 -> V2:Eliminate compilation warnings arch/csky/mm/fault.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/csky/mm/fault.c b/arch/csky/mm/fault.c index a885518ce1dd..5226bc08c336 100644 --- a/arch/csky/mm/fault.c +++ b/arch/csky/mm/fault.c @@ -45,8 +45,8 @@ static inline void csky_cmpxchg_fixup(struct pt_regs *regs) if (trap_no(regs) != VEC_TLBMODIFIED) return; - if (instruction_pointer(regs) == csky_cmpxchg_stw) - instruction_pointer_set(regs, csky_cmpxchg_ldw); + if (instruction_pointer(regs) == (unsigned long)&csky_cmpxchg_stw) + instruction_pointer_set(regs, (unsigned long)&csky_cmpxchg_ldw); return; } #endif -- 2.34.1
