From nobody Fri Oct 3 08:51:11 2025 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 B4B2B302CB6; Wed, 3 Sep 2025 13:19:40 +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=1756905583; cv=none; b=J3SVkSHzljPLsGw/Pah2LaVLNfSbY1WBcK5A5QW52zYEEmGFwX22CdhFBcqeyMO94c70+S1tsPb81AazUYlbCnJosIC8XlElA1vJ+ECQWw+btmya/kXJCd6B2FyLOWgOUEc7wQHf8b2smHsNrIfPLS2TG1dMIDN4aGtwWWFZlpg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756905583; c=relaxed/simple; bh=pyzxwGx7+PSkmBG1WocWAcb5j3Uj2h0oOnLjIjc2jd4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=e+kOQCYpucq01K5g5gC4mK+mDXADxPs55vkscKOEDKcMLoBJ0g+g1ZwLss+izksu2zPhVKE4Y1kZ0sWNiHTBMbmAOuuTuGiczwjXzN/IwOALynZORdaZ2hFqmBjyzIYrdaeHrAM8hqGtowWLcMPfPT5s791Q48jHEyAXqYbCuSY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none 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=OJXBnqr/; arc=none smtp.client-ip=178.154.239.88 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none 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="OJXBnqr/" Received: from forward102a.mail.yandex.net (forward102a.mail.yandex.net [IPv6:2a02:6b8:c0e:500:1:45:d181:d102]) by forward205a.mail.yandex.net (Yandex) with ESMTPS id E24BBC751F; Wed, 03 Sep 2025 16:13:43 +0300 (MSK) Received: from mail-nwsmtp-smtp-production-main-60.vla.yp-c.yandex.net (mail-nwsmtp-smtp-production-main-60.vla.yp-c.yandex.net [IPv6:2a02:6b8:c1d:3e17:0:640:f9aa:0]) by forward102a.mail.yandex.net (Yandex) with ESMTPS id 554AEC0054; Wed, 03 Sep 2025 16:13:36 +0300 (MSK) Received: by mail-nwsmtp-smtp-production-main-60.vla.yp-c.yandex.net (smtp/Yandex) with ESMTPSA id GDgKkBDMquQ0-trGI2GpZ; Wed, 03 Sep 2025 16:13:35 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=onurozkan.dev; s=mail; t=1756905215; bh=PCoOmkaZAX9QwwZz2KVS30/FrEGaOVtw0GvyVsUp+oI=; h=Cc:Message-ID:References:Date:In-Reply-To:Subject:To:From; b=OJXBnqr/Oacta5ihlRRrx8ApyLEHfYwx18VHIj1ELZMYIQ3Ght4iKAHALyKslPGLB GXkISFehVsSnD/ndhqg5dajGgDVr77FcAUhtzlls3j3Bd3PYtglDg8zlDNp+wBdcGj 7YoAed1ZUJr23hNcU11On2A562GOdiH80iz/zRMw= Authentication-Results: mail-nwsmtp-smtp-production-main-60.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: linux-kernel@vger.kernel.org, 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, bjorn3_gh@protonmail.com, daniel.almeida@collabora.com, =?UTF-8?q?Onur=20=C3=96zkan?= Subject: [PATCH v6 1/7] rust: add C wrappers for ww_mutex inline functions Date: Wed, 3 Sep 2025 16:13:07 +0300 Message-ID: <20250903131313.4365-2-work@onurozkan.dev> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250903131313.4365-1-work@onurozkan.dev> References: <20250903131313.4365-1-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 Reviewed-by: Daniel Almeida --- rust/helpers/helpers.c | 1 + rust/helpers/ww_mutex.c | 39 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 40 insertions(+) create mode 100644 rust/helpers/ww_mutex.c diff --git a/rust/helpers/helpers.c b/rust/helpers/helpers.c index 7cf7fe95e41d..4c789c5537b1 100644 --- a/rust/helpers/helpers.c +++ b/rust/helpers/helpers.c @@ -50,4 +50,5 @@ #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..61a487653394 --- /dev/null +++ b/rust/helpers/ww_mutex.c @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include + +void rust_helper_ww_mutex_init(struct ww_mutex *lock, struct ww_class *ww_= class) +{ + ww_mutex_init(lock, ww_class); +} + +void rust_helper_ww_acquire_init(struct ww_acquire_ctx *ctx, struct ww_cla= ss *ww_class) +{ + ww_acquire_init(ctx, ww_class); +} + +void rust_helper_ww_acquire_done(struct ww_acquire_ctx *ctx) +{ + ww_acquire_done(ctx); +} + +void rust_helper_ww_acquire_fini(struct ww_acquire_ctx *ctx) +{ + ww_acquire_fini(ctx); +} + +void rust_helper_ww_mutex_lock_slow(struct ww_mutex *lock, struct ww_acqui= re_ctx *ctx) +{ + ww_mutex_lock_slow(lock, ctx); +} + +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); +} + +bool rust_helper_ww_mutex_is_locked(struct ww_mutex *lock) +{ + return ww_mutex_is_locked(lock); +} + -- 2.50.0