On Sun, Feb 15, 2026 at 07:42:05AM +0100, Dirk Behme wrote:

On 05.12.25 08:18, Byungchul Park wrote:

quoted

wait_for_completion() can be used at various points in the code and it's
very hard to distinguish wait_for_completion()s between different usages.
Using a single dept_key for all the wait_for_completion()s could trigger
false positive reports.

Assign unique dept_key to each distinct wait_for_completion() caller to
avoid false positive reports.

While at it, add a rust helper for wait_for_completion() to avoid build
errors.

Signed-off-by: Byungchul Park <byungchul@sk.com>
---
 include/linux/completion.h | 100 +++++++++++++++++++++++++++++++------
 kernel/sched/completion.c  |  60 +++++++++++-----------
 rust/helpers/completion.c  |   5 ++
 3 files changed, 120 insertions(+), 45 deletions(-)

...

quoted

diff --git a/rust/helpers/completion.c b/rust/helpers/completion.c
index b2443262a2ae..5bae5e749def 100644
--- a/rust/helpers/completion.c
+++ b/rust/helpers/completion.c

@@ -6,3 +6,8 @@ void rust_helper_init_completion(struct completion *x)
 {
      init_completion(x);
 }
+
+void rust_helper_wait_for_completion(struct completion *x)

Please add `__rust_helper`:

I will.  Thanks.

	Byungchul

https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/rust/helpers/completion.c?h=next-20260213&id=1c7a6f48f7eeb3014584d2fc55fc67f0cbaeef69

Best regards

Dirk