From nobody Sun Feb 8 11:45:02 2026 Received: from forward205a.mail.yandex.net (forward205a.mail.yandex.net [178.154.239.88]) (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 ED6A442049; Fri, 2 Jan 2026 18:00:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.154.239.88 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767376856; cv=none; b=nqABzmd+HyNkeMwZ+A2Pous61cBx+Awb+88Dg781NBiAvUkVXaTByDLqXDIiM+ebTLAL2VsvC5x0bn4IZTbkTSye/+7bB5s3v09PPiHY/k4aVQeRhYgVgZ1JnEKEfFC9uUU4VA5k0wSeo/NxG0GdwODVy10uG7YJn5D7Te2MNRo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767376856; c=relaxed/simple; bh=2EVSplVnK7R0RFPqc62S106ZcYBEfbsD9zMBWMzUI8M=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=CuK2SPhhZePrmSP3IHTQaLXgMFUSUbsppmynjuj91NNrqHwFb0oqUc1d1j+hAMn0gqaNpVbgIZrij5TV3P4Usr3ra5rXLjMxayn5FLa+1duEK0oBynPyg1b3fI6DSkDyq45bnRHPBLYI4JMDDck/odgzTt6TEowRyx54RP6+pm8= 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=cgx4XjcT; arc=none smtp.client-ip=178.154.239.88 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="cgx4XjcT" Received: from forward101a.mail.yandex.net (forward101a.mail.yandex.net [IPv6:2a02:6b8:c0e:500:1:45:d181:d101]) by forward205a.mail.yandex.net (Yandex) with ESMTPS id CAEFBC402B; Fri, 02 Jan 2026 20:54:58 +0300 (MSK) Received: from mail-nwsmtp-smtp-production-main-55.vla.yp-c.yandex.net (mail-nwsmtp-smtp-production-main-55.vla.yp-c.yandex.net [IPv6:2a02:6b8:c1f:582e:0:640:200:0]) by forward101a.mail.yandex.net (Yandex) with ESMTPS id 3180B80C31; Fri, 02 Jan 2026 20:54:51 +0300 (MSK) Received: by mail-nwsmtp-smtp-production-main-55.vla.yp-c.yandex.net (smtp/Yandex) with ESMTPSA id prp9aJGHE8c0-WyS3it1X; Fri, 02 Jan 2026 20:54:50 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=onurozkan.dev; s=mail; t=1767376490; bh=23tOmmBtRzPwCEyTF8gBAW2nUgVB9qSXyEXIMs1Iu8A=; h=Cc:Message-ID:References:Date:In-Reply-To:Subject:To:From; b=cgx4XjcTRMuFcD6cSmNX+HUXykhhK+M/wtJo0ofwliYy/kxE7jNHnShhnQmyl0JW2 6MAqRM/fIbiuHJw1qwjktfOorl1hxKpCPpWiXzU02Oh8T+Fb3CoOBnjUd86KejaP1Z O9J13dOGwykXu0dhO/3ntLYQvt9ljKQgND5v+2sw= Authentication-Results: mail-nwsmtp-smtp-production-main-55.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 v9 1/7] rust: add C wrappers for ww_mutex inline functions Date: Fri, 2 Jan 2026 20:52:56 +0300 Message-ID: <20260102175302.194435-2-work@onurozkan.dev> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20260102175302.194435-1-work@onurozkan.dev> References: <20260102175302.194435-1-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