From nobody Tue Dec 16 14:52:53 2025 Received: from forward101d.mail.yandex.net (forward101d.mail.yandex.net [178.154.239.212]) (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 0BCBC25D536; Sat, 1 Nov 2025 16:11:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.154.239.212 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762013477; cv=none; b=E5kvDmHyagIZ8YGIHvMZ+1dKDEdaHY7Wbk4aO52mPPtCA0SYX2OMBTQAy0V15U7eZC0dQ7MLvT9qDNGbczi4Io4m+y6m8NCSptYtJqXkCrH7NhF6akcZsUFcYExkAv4f2g3N21IwITpUKcuHWXJDVOwhhp/Mk8l8OmJ6Z1+DrYE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762013477; c=relaxed/simple; bh=vG9lfhUCRakuAGuT3dA0QBxjkAp8v6T2Rb+b5FMFZgg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Hq0dxi0VJ2hOphIiW9+XBW0xb/AFB+FtU3BVGlh5nHneYne3POEer9Hc9a3vfRwZZWZbZrTiY4X3fj2KWTz2DcZ0AhGY6/EhcDkirLS6QI0C3ZgwJDnhuwrdeZmwkS6Na7NlS5xZgp/093NkrgzSaiSsIG4aGlq14kJOx/HQVu8= 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=TZuAQ2Nc; arc=none smtp.client-ip=178.154.239.212 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="TZuAQ2Nc" Received: from mail-nwsmtp-smtp-production-main-99.klg.yp-c.yandex.net (mail-nwsmtp-smtp-production-main-99.klg.yp-c.yandex.net [IPv6:2a02:6b8:c42:d7c6:0:640:5e67:0]) by forward101d.mail.yandex.net (Yandex) with ESMTPS id C0F39C0041; Sat, 01 Nov 2025 19:11:08 +0300 (MSK) Received: by mail-nwsmtp-smtp-production-main-99.klg.yp-c.yandex.net (smtp/Yandex) with ESMTPSA id wAkixRhLDOs0-FPxOZO3o; Sat, 01 Nov 2025 19:11:07 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=onurozkan.dev; s=mail; t=1762013467; bh=KtbJ7gwd1xqf54f0xvnpxlmrj7mnWdH6IdsdCodutvg=; h=Cc:Message-ID:References:Date:In-Reply-To:Subject:To:From; b=TZuAQ2NcRlTqhLImf2pTVru6k5a1BLPT9UmuuiTPpQ+DAEkbMwRTA3aH2kJZ6kVN1 IBLslnvd7QAbqDxannDTfXTqT5hhYpWOwWZlM7FI3P9IPOWBqS0rarMLDcmxlvVoJR d/48RCrLvty4Q1e3Nod5+c509xv0C8RbWy1IdkjE= Authentication-Results: mail-nwsmtp-smtp-production-main-99.klg.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, bjorn3_gh@protonmail.com, daniel.almeida@collabora.com, linux-kernel@vger.kernel.org, =?UTF-8?q?Onur=20=C3=96zkan?= Subject: [PATCH v7 1/6] rust: add C wrappers for ww_mutex inline functions Date: Sat, 1 Nov 2025 19:10:51 +0300 Message-ID: <20251101161056.22408-2-work@onurozkan.dev> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20251101161056.22408-1-work@onurozkan.dev> References: <20251101161056.22408-1-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 Reviewed-by: Lyude Paul --- MAINTAINERS | 1 + rust/helpers/helpers.c | 1 + rust/helpers/ww_mutex.c | 39 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 41 insertions(+) create mode 100644 rust/helpers/ww_mutex.c diff --git a/MAINTAINERS b/MAINTAINERS index 545a4776795e..03dca09d189a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -14527,6 +14527,7 @@ 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 551da6c9b506..58cf14d74516 100644 --- a/rust/helpers/helpers.c +++ b/rust/helpers/helpers.c @@ -59,4 +59,5 @@ #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); +} + --=20 2.51.2