From nobody Sun Feb 8 08:22:29 2026 Received: from forward103a.mail.yandex.net (forward103a.mail.yandex.net [178.154.239.86]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5B1B9299922; Sat, 3 Jan 2026 07:36:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.154.239.86 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767425782; cv=none; b=aUPYXAKkXQEbkIVbQWU7nbsNzhaDk7Bs3SEk1tuOY9OgT5OJHhMY7gNdwjSQMJ0b+tXtX6bF3ocYIOZMCNJZ8b1mZlo1F1W2QEQqzw/l71M9zYe9g42wyhTrOUfEQOkSQTpDQfXhwT1jXU6vqyh+DMzlQ0o7ydfg7/IWuyCyacw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767425782; c=relaxed/simple; bh=2EVSplVnK7R0RFPqc62S106ZcYBEfbsD9zMBWMzUI8M=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=NQAtUEzQ+IVMZllCSJVjXvfndRoS9Z7xJgbR72ObbQ5RwFZjpIzWlQsl8d9Yzuti7xwXwRpjafGjOmoVmYt+gaW+Tx4mIEdSggb+i0GYmRU9elSIkSt6jEMXebzUrDrHmdJfxX3+HBImBp44QhdowhuEwX3fyUQmnf+X0tmEWt0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=onurozkan.dev; spf=pass smtp.mailfrom=onurozkan.dev; dkim=pass (1024-bit key) header.d=onurozkan.dev header.i=@onurozkan.dev header.b=W6vPIlVE; arc=none smtp.client-ip=178.154.239.86 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=onurozkan.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=onurozkan.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=onurozkan.dev header.i=@onurozkan.dev header.b="W6vPIlVE" Received: from mail-nwsmtp-smtp-production-main-97.vla.yp-c.yandex.net (mail-nwsmtp-smtp-production-main-97.vla.yp-c.yandex.net [IPv6:2a02:6b8:c15:2804:0:640:a3ea:0]) by forward103a.mail.yandex.net (Yandex) with ESMTPS id 2D05A8087E; Sat, 03 Jan 2026 10:36:17 +0300 (MSK) Received: by mail-nwsmtp-smtp-production-main-97.vla.yp-c.yandex.net (smtp/Yandex) with ESMTPSA id vZgUW4MHrmI0-dN4qSzGr; Sat, 03 Jan 2026 10:36:15 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=onurozkan.dev; s=mail; t=1767425775; bh=23tOmmBtRzPwCEyTF8gBAW2nUgVB9qSXyEXIMs1Iu8A=; h=Cc:Message-ID:References:Date:In-Reply-To:Subject:To:From; b=W6vPIlVEn0NQNobGE60TG3TELh/GtFgftj0ZUZyVZfL8aTyPPjmealBFoXdQ7JJKU 8OZpD9RZ2viaDUg6ZvUFfwIhUnGNRiFB2pFrAUDYHk2MVABCvd84yLz6osU51xg3IO 2MjVrWoP5wnk3A9vGZ8xpy5EtuUWpZUDkcMyNvJ0= Authentication-Results: mail-nwsmtp-smtp-production-main-97.vla.yp-c.yandex.net; dkim=pass header.i=@onurozkan.dev From: =?UTF-8?q?Onur=20=C3=96zkan?= To: rust-for-linux@vger.kernel.org Cc: lossin@kernel.org, lyude@redhat.com, ojeda@kernel.org, alex.gaynor@gmail.com, boqun.feng@gmail.com, gary@garyguo.net, a.hindborg@kernel.org, aliceryhl@google.com, tmgross@umich.edu, dakr@kernel.org, peterz@infradead.org, mingo@redhat.com, will@kernel.org, longman@redhat.com, felipe_life@live.com, daniel@sedlak.dev, daniel.almeida@collabora.com, thomas.hellstrom@linux.intel.com, linux-kernel@vger.kernel.org, =?UTF-8?q?Onur=20=C3=96zkan?= Subject: [PATCH v10 1/7] rust: add C wrappers for ww_mutex inline functions Date: Sat, 3 Jan 2026 10:35:48 +0300 Message-ID: <20260103073554.34855-2-work@onurozkan.dev> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20260103073554.34855-1-work@onurozkan.dev> References: <20260103073554.34855-1-work@onurozkan.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Some of the kernel's `ww_mutex` functions are implemented as `static inline`, so they are inaccessible from Rust as bindgen can't generate code on them. This patch provides C function wrappers around these inline implementations, so bindgen can see them and generate the corresponding Rust code. Signed-off-by: Onur =C3=96zkan --- MAINTAINERS | 1 + rust/helpers/helpers.c | 1 + rust/helpers/ww_mutex.c | 45 +++++++++++++++++++++++++++++++++++++++++ 3 files changed, 47 insertions(+) create mode 100644 rust/helpers/ww_mutex.c diff --git a/MAINTAINERS b/MAINTAINERS index 765ad2daa218..d245b7b38b21 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -14728,6 +14728,7 @@ F: kernel/locking/ F: lib/locking*.[ch] F: rust/helpers/mutex.c F: rust/helpers/spinlock.c +F: rust/helpers/ww_mutex.c F: rust/kernel/sync/lock.rs F: rust/kernel/sync/lock/ F: rust/kernel/sync/locked_by.rs diff --git a/rust/helpers/helpers.c b/rust/helpers/helpers.c index 79c72762ad9c..a95fb3abaab3 100644 --- a/rust/helpers/helpers.c +++ b/rust/helpers/helpers.c @@ -61,4 +61,5 @@ #include "vmalloc.c" #include "wait.c" #include "workqueue.c" +#include "ww_mutex.c" #include "xarray.c" diff --git a/rust/helpers/ww_mutex.c b/rust/helpers/ww_mutex.c new file mode 100644 index 000000000000..2ea19aafbd4e --- /dev/null +++ b/rust/helpers/ww_mutex.c @@ -0,0 +1,45 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include + +__rust_helper +void rust_helper_ww_mutex_init(struct ww_mutex *lock, struct ww_class *ww_= class) +{ + ww_mutex_init(lock, ww_class); +} + +__rust_helper +void rust_helper_ww_acquire_init(struct ww_acquire_ctx *ctx, struct ww_cla= ss *ww_class) +{ + ww_acquire_init(ctx, ww_class); +} + +__rust_helper +void rust_helper_ww_acquire_done(struct ww_acquire_ctx *ctx) +{ + ww_acquire_done(ctx); +} + +__rust_helper +void rust_helper_ww_acquire_fini(struct ww_acquire_ctx *ctx) +{ + ww_acquire_fini(ctx); +} + +__rust_helper +void rust_helper_ww_mutex_lock_slow(struct ww_mutex *lock, struct ww_acqui= re_ctx *ctx) +{ + ww_mutex_lock_slow(lock, ctx); +} + +__rust_helper +int rust_helper_ww_mutex_lock_slow_interruptible(struct ww_mutex *lock, st= ruct ww_acquire_ctx *ctx) +{ + return ww_mutex_lock_slow_interruptible(lock, ctx); +} + +__rust_helper +bool rust_helper_ww_mutex_is_locked(struct ww_mutex *lock) +{ + return ww_mutex_is_locked(lock); +} --=20 2.51.2