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arm64: stacktrace: Constify stacktrace.h functions

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on_accessible_stack() and on_task_stack() shouldn't (and don't)
modify their task argument, so it can be const.

This patch adds the appropriate modifiers. Whitespace violations in the
parameter lists are fixed at the same time.

No functional change.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Dave Martin <dave.martin@arm.com>
[Mark: fixup const location, whitespace]
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Dave Martin 2019-07-02 14:07:27 +01:00 committed by Will Deacon
parent a88754b231
commit 8caa6e2be7
1 changed files with 6 additions and 5 deletions
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11
arch/arm64/include/asm/stacktrace.h
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@ -64,8 +64,9 @@ static inline bool on_irq_stack(unsigned long sp,
return true;
}
static inline bool on_task_stack(struct task_struct *tsk, unsigned long sp,
struct stack_info *info)
static inline bool on_task_stack(const struct task_struct *tsk,
unsigned long sp,
struct stack_info *info)
{
unsigned long low = (unsigned long)task_stack_page(tsk);
unsigned long high = low + THREAD_SIZE;
@ -112,9 +113,9 @@ static inline bool on_overflow_stack(unsigned long sp,
* We can only safely access per-cpu stacks from current in a non-preemptible
* context.
*/
static inline bool on_accessible_stack(struct task_struct *tsk,
unsigned long sp,
struct stack_info *info)
static inline bool on_accessible_stack(const struct task_struct *tsk,
unsigned long sp,
struct stack_info *info)
{
if (on_task_stack(tsk, sp, info))
return true;