[PATCH v2 13/19] kmsan: use stack_depot_save instead of __stack_depot_save

andrey.konovalov
2023-09-13T17:17:26Z

From: Andrey Konovalov <andreyknvl@google.com>

Make KMSAN use stack_depot_save instead of __stack_depot_save,
as it always passes true to __stack_depot_save as the last argument.

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>

---

Changes v1->v2:
- This is a new patch.
---
mm/kmsan/core.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/mm/kmsan/core.c b/mm/kmsan/core.c
index 3adb4c1d3b19..5d942f19d12a 100644
--- a/mm/kmsan/core.c
+++ b/mm/kmsan/core.c
@@ -76,7 +76,7 @@ depot_stack_handle_t kmsan_save_stack_with_flags(gfp_t flags,
/* Don't sleep. */
flags &= ~(__GFP_DIRECT_RECLAIM | __GFP_KSWAPD_RECLAIM);

- handle = __stack_depot_save(entries, nr_entries, flags, true);
+ handle = stack_depot_save(entries, nr_entries, flags);
return stack_depot_set_extra_bits(handle, extra);
}

@@ -250,11 +250,10 @@ depot_stack_handle_t kmsan_internal_chain_origin(depot_stack_handle_t id)
/*
* @entries is a local var in non-instrumented code, so KMSAN does not
* know it is initialized. Explicitly unpoison it to avoid false
- * positives when __stack_depot_save() passes it to instrumented code.
+ * positives when stack_depot_save() passes it to instrumented code.
*/
kmsan_internal_unpoison_memory(entries, sizeof(entries), false);
- handle = __stack_depot_save(entries, ARRAY_SIZE(entries), __GFP_HIGH,
- true);
+ handle = stack_depot_save(entries, ARRAY_SIZE(entries), __GFP_HIGH);
return stack_depot_set_extra_bits(handle, extra_bits);
}

--
2.25.1