From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from forward102b.mail.yandex.net (forward102b.mail.yandex.net [178.154.239.149]) (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 D2B21101EE; Sat, 21 Jun 2025 15:22:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.154.239.149 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750519351; cv=none; b=Gl0hX7K2syy9Ub7waNzu2Oy1dN/qEsaEBNzFZZr86FEERL/r5DLpDWVHafs7Y3T7ac5XxbOzTCSxryYpxGhewOIYCRUEcH4C0mIHX0cMaJ8XpqAwya6jzDdC6CF7ecKCqabK/SsD7mqtcq/ncMSHlb8hxOqZPVLJoATLyk7OXBk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750519351; c=relaxed/simple; bh=7Lp59rNsPbydTS6B3+sgFgdCEpgsqeTBKtTqJF6iyAI=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=sveEvEUHttUnyL42DBPKjt0GdnMKdOK7W/zrwhos8sFKKPr9qRNUFenmgSg7t5MN1tipVv7iT7AxsvBFYrYBzoKRCs2jEX/c4mKRygzX1zf+wfidfM0hsGCG0RZYfLL2yMKAWPIgdckKSXdcdX02tRvyfBORsUplqMVqJPhY99c= 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=SUfLyCew; arc=none smtp.client-ip=178.154.239.149 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="SUfLyCew" Received: from mail-nwsmtp-smtp-production-main-73.sas.yp-c.yandex.net (mail-nwsmtp-smtp-production-main-73.sas.yp-c.yandex.net [IPv6:2a02:6b8:c23:2f3c:0:640:5ff5:0]) by forward102b.mail.yandex.net (Yandex) with ESMTPS id C67C4609B2; Sat, 21 Jun 2025 18:22:18 +0300 (MSK) Received: by mail-nwsmtp-smtp-production-main-73.sas.yp-c.yandex.net (smtp/Yandex) with ESMTPSA id pLScBAbLgmI0-w71e1y8x; Sat, 21 Jun 2025 18:22:17 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=onurozkan.dev; s=mail; t=1750519337; bh=WHGANRH7wsHF0bZfk8XocJJcEhb3nNf/wmYuKEj1e6Q=; h=Message-ID:Date:Cc:Subject:To:From; b=SUfLyCewFsrnYcbtQQo2FwmOzrEGAKWAc8mni/jQhxp8sPlhMLjqBTAMgAEVJbyYM GFVVsLQzUL6g3NP1aH5tz2xJgQ0Y0VXDAN7cXCnOomFaPy5Lp4EvP0zlWbZRc+/mRB t0Vodddd7H6bAxBNVfomIVESZi5wEtWh6jjmrsUw= Authentication-Results: mail-nwsmtp-smtp-production-main-73.sas.yp-c.yandex.net; dkim=pass header.i=@onurozkan.dev From: =?UTF-8?q?Onur=20=C3=96zkan?= To: linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org Cc: ojeda@kernel.org, alex.gaynor@gmail.com, boqun.feng@gmail.com, gary@garyguo.net, lossin@kernel.org, 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, =?UTF-8?q?Onur=20=C3=96zkan?= Subject: [PATCH 1/3 v4] rust: add C wrappers for `ww_mutex` inline functions Date: Sat, 21 Jun 2025 18:21:40 +0300 Message-ID: <20250621152142.25167-1-work@onurozkan.dev> X-Mailer: git-send-email 2.49.0 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. Signed-off-by: Onur Özkan --- 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 0f1b5d115985..fd071cbe20a1 100644 --- a/rust/helpers/helpers.c +++ b/rust/helpers/helpers.c @@ -44,3 +44,4 @@ #include "wait.c" #include "workqueue.c" #include "xarray.c" +#include "ww_mutex.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_class *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_acquire_ctx *ctx) +{ + ww_mutex_lock_slow(lock, ctx); +} + +int rust_helper_ww_mutex_lock_slow_interruptible(struct ww_mutex *lock, struct 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); +} + -- 2.49.0