lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <tencent_13F1EDE0D6B7A44697F31AE274C8E664E908@qq.com>
Date: Thu,  2 Oct 2025 10:06:17 +0000
From: Guangbo Cui <2407018371@...com>
To: byungchul@...com
Cc: Liam.Howlett@...cle.com,
	amir73il@...il.com,
	andi.shyti@...nel.org,
	andrii@...nel.org,
	boqun.feng@...il.com,
	bsegall@...gle.com,
	gregkh@...uxfoundation.org,
	linaro-mm-sig@...ts.linaro.org,
	link@...o.com,
	linux-kernel@...r.kernel.org,
	mark.rutland@....com,
	masahiroy@...nel.org,
	mathieu.desnoyers@...icios.com,
	matthew.brost@...el.com,
	max.byungchul.park@...il.com,
	mcgrof@...nel.org,
	melissa.srw@...il.com,
	mgorman@...e.de,
	mhocko@...nel.org,
	minchan@...nel.org,
	oleg@...hat.com,
	paulmck@...nel.org,
	penberg@...nel.org,
	peterz@...radead.org,
	petr.pavlu@...e.com,
	torvalds@...ux-foundation.org,
	vincent.guittot@...aro.org,
	will@...nel.org,
	yeoreum.yun@....com,
	ysk@...lloc.com,
	rust-for-linux@...r.kernel.org,
	ojeda@...nel.org,
	gary@...yguo.net,
	lossin@...nel.org,
	a.hindborg@...nel.org,
	aliceryhl@...gle.com,
	dakr@...nel.org,
	alex.gaynor@...il.com,
	bjorn3_gh@...tonmail.com,
	Guangbo Cui <2407018371@...com>
Subject: [PATCH] rust: bindings: add `rust_helper_wait_for_completion` helper function

> -extern void wait_for_completion(struct completion *);
> -extern void wait_for_completion_io(struct completion *);
> -extern int wait_for_completion_interruptible(struct completion *x);
> -extern int wait_for_completion_killable(struct completion *x);
> -extern int wait_for_completion_state(struct completion *x, unsigned int state);
> -extern unsigned long wait_for_completion_timeout(struct completion *x,
> +extern void __wait_for_completion(struct completion *);
> +extern void __wait_for_completion_io(struct completion *);
> +extern int __wait_for_completion_interruptible(struct completion *x);
> +extern int __wait_for_completion_killable(struct completion *x);
> +extern int __wait_for_completion_state(struct completion *x, unsigned int state);
> +extern unsigned long __wait_for_completion_timeout(struct completion *x,
>  						   unsigned long timeout);
> -extern unsigned long wait_for_completion_io_timeout(struct completion *x,
> +extern unsigned long __wait_for_completion_io_timeout(struct completion *x,
>  						    unsigned long timeout);
> -extern long wait_for_completion_interruptible_timeout(
> +extern long __wait_for_completion_interruptible_timeout(
>  	struct completion *x, unsigned long timeout);
> -extern long wait_for_completion_killable_timeout(
> +extern long __wait_for_completion_killable_timeout(
>  	struct completion *x, unsigned long timeout);
>  extern bool try_wait_for_completion(struct completion *x);
>  extern bool completion_done(struct completion *x);
> @@ -139,4 +134,79 @@ extern void complete(struct completion *);
>  extern void complete_on_current_cpu(struct completion *x);
>  extern void complete_all(struct completion *);
>  
> +#define wait_for_completion(x)						\
> +({									\
> +	sdt_might_sleep_start_timeout(NULL, -1L);			\
> +	__wait_for_completion(x);					\
> +	sdt_might_sleep_end();						\
> +})

The DEPT patch series changed `wait_for_completion` into a macro.
Because bindgen cannot handle function-like macros, this caused
Rust build errors. Add a helper function to fix it.

```
error[E0425]: cannot find function `wait_for_completion` in crate `bindings`
     --> rust/kernel/sync/completion.rs:110:28
      |
  110 |         unsafe { bindings::wait_for_completion(self.as_raw()) };
      |                            ^^^^^^^^^^^^^^^^^^^ help: a function with a similar name exists: `__wait_for_completion`
      |
     ::: /root/linux/rust/bindings/bindings_generated.rs:33440:5
      |
33440 |     pub fn __wait_for_completion(arg1: *mut completion);
      |     ---------------------------------------------------- similarly named function `__wait_for_completion` defined here

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0425`.
```

Signed-off-by: Guangbo Cui <2407018371@...com>
---
 rust/helpers/completion.c | 5 +++++
 1 file changed, 5 insertions(+)

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)
+{
+	wait_for_completion(x);
+}
-- 
2.43.0


Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ