From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-106112.protonmail.ch (mail-106112.protonmail.ch [79.135.106.112]) (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 CC8B1455634 for ; Mon, 12 Oct 2026 10:27:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=79.135.106.112 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791800861; cv=none; b=kZdSwzLlSL118DWNumJO2oSqPGGOfYnaoy7/gpg06t46IO3/FTRig9WpQvJXFl0fXnewOd+lZNOuTij5+88989rXM0CYLbZOXoPeL5B7qwzqg2B1Iedd7K/0HIGEbjF8v6baZtNcCJMMd9WSgfO1pu9QbRtPYQnNgQFYi8+TDhQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791800861; c=relaxed/simple; bh=mlmypqlOBKNWF0KHgRUFyrIZ2pAdEWA3H8lYfe7sdag=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=UtrkREG835AbQDbW6zvmA5/Wj+3tR7cfnrIIsrx4bIAY3hpTr72d3LTYAIwhl1cy+/dQOBtI4cWLXJ/1uQZhW5BR8pWrBXNxDK+B2klZ5DiqEmbD1eC2pYABipWv7M9Ya8mQHbDWAAo8IkshumZoSJv/CmW1CaThAKq3ibJnKy8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=onurozkan.dev; spf=pass smtp.mailfrom=onurozkan.dev; dkim=pass (2048-bit key) header.d=onurozkan.dev header.i=@onurozkan.dev header.b=fk0PqGCf; arc=none smtp.client-ip=79.135.106.112 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine 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 (2048-bit key) header.d=onurozkan.dev header.i=@onurozkan.dev header.b="fk0PqGCf" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=onurozkan.dev; s=protonmail2; t=1791800849; x=1792060049; bh=WkSuftk/ZsRVEuUQ39aa2eTrOU1ztb57+YgJSChS8hA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References:From:To: Cc:Date:Subject:Reply-To:Feedback-ID:Message-ID:BIMI-Selector; b=fk0PqGCfvdUppvjCK9HuNEI7n1wO1ETEJ0UWQ+WJD/7vDXY7bsjYw62oRn2lApDjs OevGFmd7rkE7cZB+ozbzeMV/z7ObDCHRSBotrgPRaYduqOGbMdbbUy5570Pcje6Z2M mig0vWGqK33gIm2vZle0ey5aBmMBIaTjhpB6mjtjIHOYiI+Je8Xajo/C/aUn7YoI/x YTO9BjoKEgXdJH6oxRNGjVbsvTp65XgyizLyUyzQWJjYFYJ/P52cu7fF/+SB7VAyhG BWKOpZyILLm5QvIS2XCBjXajQtGWLZ9HcISHUpNl9E4VEojY2OHoQ1gwepj2KNh+9C 5I/CjCHTUUuFw== X-Pm-Submission-Id: 4j3DDZ1HDRz2ScXF From: =?UTF-8?q?Onur=20=C3=96zkan?= To: rust-for-linux@vger.kernel.org Cc: =?UTF-8?q?Onur=20=C3=96zkan?= , 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 Subject: [PATCH v12 1/6] rust: add C wrappers for ww_mutex inline functions Date: Mon, 12 Oct 2026 13:26:28 +0300 Message-ID: <4942155a8873e7f4015c5eda57ffb974a2261705.1791799752.git.work@onurozkan.dev> X-Mailer: git-send-email 2.51.2 In-Reply-To: References: 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: 8bit 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. Reviewed-by: Daniel Almeida Reviewed-by: Alice Ryhl Reviewed-by: Lyude Paul Signed-off-by: Onur Özkan --- MAINTAINERS | 1 + rust/helpers/helpers.c | 1 + rust/helpers/ww_mutex.c | 33 +++++++++++++++++++++++++++++++++ 3 files changed, 35 insertions(+) create mode 100644 rust/helpers/ww_mutex.c diff --git a/MAINTAINERS b/MAINTAINERS index 47946f1c507b9..198bb740f7cc2 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -15283,6 +15283,7 @@ 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 440fb7638e3cb..0287064c82c18 100644 --- a/rust/helpers/helpers.c +++ b/rust/helpers/helpers.c @@ -105,4 +105,5 @@ #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 0000000000000..e7aa65ac58745 --- /dev/null +++ b/rust/helpers/ww_mutex.c @@ -0,0 +1,33 @@ +// 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_class *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 +bool rust_helper_ww_mutex_is_locked(struct ww_mutex *lock) +{ + return ww_mutex_is_locked(lock); +} -- 2.51.2