diff options
| -rw-r--r-- | arch/arm64/include/asm/stacktrace/common.h | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/arch/arm64/include/asm/stacktrace/common.h b/arch/arm64/include/asm/stacktrace/common.h index a74fa301fe95..81c21378b1ac 100644 --- a/arch/arm64/include/asm/stacktrace/common.h +++ b/arch/arm64/include/asm/stacktrace/common.h @@ -65,21 +65,34 @@ struct unwind_state { struct task_struct *task; }; +static inline bool stackinfo_on_stack(const struct stack_info *info, + unsigned long sp, unsigned long size) +{ + if (!info->low) + return false; + + if (sp < info->low || sp + size < sp || sp + size > info->high) + return false; + + return true; +} + static inline bool on_stack(unsigned long sp, unsigned long size, unsigned long low, unsigned long high, enum stack_type type, struct stack_info *info) { - if (!low) - return false; + struct stack_info tmp = { + .low = low, + .high = high, + .type = type, + }; - if (sp < low || sp + size < sp || sp + size > high) + if (!stackinfo_on_stack(&tmp, sp, size)) return false; - if (info) { - info->low = low; - info->high = high; - info->type = type; - } + if (info) + *info = tmp; + return true; } |