Messages in this thread Patch in this message | | | Date | Mon, 23 Nov 2020 21:14:36 +0100 | Subject | [PATCH mm v4 06/19] kasan: remove __kasan_unpoison_stack | From | Andrey Konovalov <> |
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There's no need for __kasan_unpoison_stack() helper, as it's only currently used in a single place. Removing it also removes unneeded arithmetic.
No functional changes.
Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Reviewed-by: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Marco Elver <elver@google.com> Link: https://linux-review.googlesource.com/id/Ie5ba549d445292fe629b4a96735e4034957bcc50 --- mm/kasan/common.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-)
diff --git a/mm/kasan/common.c b/mm/kasan/common.c index 7648a2452a01..fabd843eff3d 100644 --- a/mm/kasan/common.c +++ b/mm/kasan/common.c @@ -65,18 +65,12 @@ void kasan_unpoison_range(const void *address, size_t size) } #if CONFIG_KASAN_STACK -static void __kasan_unpoison_stack(struct task_struct *task, const void *sp) -{ - void *base = task_stack_page(task); - size_t size = sp - base; - - unpoison_range(base, size); -} - /* Unpoison the entire stack for a task. */ void kasan_unpoison_task_stack(struct task_struct *task) { - __kasan_unpoison_stack(task, task_stack_page(task) + THREAD_SIZE); + void *base = task_stack_page(task); + + unpoison_range(base, THREAD_SIZE); } /* Unpoison the stack for the current task beyond a watermark sp value. */ -- 2.29.2.454.gaff20da3a2-goog
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