diff options
Diffstat (limited to 'arch/arm64/include/asm')
| -rw-r--r-- | arch/arm64/include/asm/stacktrace.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/stacktrace.h b/arch/arm64/include/asm/stacktrace.h index 000e24182a5c..4c68d8a81988 100644 --- a/arch/arm64/include/asm/stacktrace.h +++ b/arch/arm64/include/asm/stacktrace.h @@ -36,13 +36,16 @@ extern void walk_stackframe(struct task_struct *tsk, struct stackframe *frame, int (*fn)(struct stackframe *, void *), void *data); extern void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk); -DECLARE_PER_CPU(unsigned long [IRQ_STACK_SIZE/sizeof(long)], irq_stack); +DECLARE_PER_CPU(unsigned long *, irq_stack_ptr); static inline bool on_irq_stack(unsigned long sp) { - unsigned long low = (unsigned long)raw_cpu_ptr(irq_stack); + unsigned long low = (unsigned long)raw_cpu_read(irq_stack_ptr); unsigned long high = low + IRQ_STACK_SIZE; + if (!low) + return false; + return (low <= sp && sp < high); } |