From nobody Thu Oct 9 02:55:49 2025 Received: from forward200d.mail.yandex.net (forward200d.mail.yandex.net [178.154.239.221]) (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 D39C12036ED; Sat, 21 Jun 2025 18:53:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=178.154.239.221 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750531999; cv=none; b=DdLCkttVagvYf92H2bdf2Vp3nkLPRokvaOK5wsy4M0t69Nyummqy2k8f7o7wB43zR5jWlR2u2uqLqwdsOC9h4ymPGDPIcW2qdsbno4xbjbSXQugitOrPKbAoCgF9x2x1mUXOjDNWAfd8u/4ivbg+QmV9el8QiLLMGOVW+pTYmkY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750531999; c=relaxed/simple; bh=znL4Zc3S4t3FyzyWArcnH6Jx4XM0uFtnH/0Pcek5cQA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=m/EZiwKl+GiobymZnYNTBe2MHxtYioLIXPyptkpxNDqIvhx6jxb0/+jAacUccJ2mShPXu55VeXrKc+V6k7FXb0gvBbraeY5Qmo9rcSfQyuX6lJkzygzznTYJ+HXju6dRZcyFa4iJaUguv9LJM9r0spM8canBDE/DwH0qio0xIaw= 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=Cd0G1E9K; arc=none smtp.client-ip=178.154.239.221 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="Cd0G1E9K" Received: from forward100d.mail.yandex.net (forward100d.mail.yandex.net [IPv6:2a02:6b8:c41:1300:1:45:d181:d100]) by forward200d.mail.yandex.net (Yandex) with ESMTPS id EF48063526; Sat, 21 Jun 2025 21:45:28 +0300 (MSK) Received: from mail-nwsmtp-smtp-production-main-91.iva.yp-c.yandex.net (mail-nwsmtp-smtp-production-main-91.iva.yp-c.yandex.net [IPv6:2a02:6b8:c0c:3b23:0:640:a115:0]) by forward100d.mail.yandex.net (Yandex) with ESMTPS id 926F060975; Sat, 21 Jun 2025 21:45:20 +0300 (MSK) Received: by mail-nwsmtp-smtp-production-main-91.iva.yp-c.yandex.net (smtp/Yandex) with ESMTPSA id uiVAZ68LnCg0-S7mslwtW; Sat, 21 Jun 2025 21:45:18 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=onurozkan.dev; s=mail; t=1750531519; bh=0ipQNjbd7rx7eDMk+d+z9kiN5etFmfMNR8/fpV+diMs=; h=Cc:Message-ID:References:Date:In-Reply-To:Subject:To:From; b=Cd0G1E9K1gU0MnD3tYM6s46ER3c4buatUv+AWJJzDR/BKeH6UTey00ALcc3FLEd4x vybDW+tAJnJMtm+qZfy6iT0K5HPgf+eJ6zGmFZWknc2ogHXIM+94ARFPApD2Q6sBB1 mYxKpPz0wWQHj0yjm62QHbEmra0ChtMxCZq40A14= Authentication-Results: mail-nwsmtp-smtp-production-main-91.iva.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 v5 1/3] rust: add C wrappers for `ww_mutex` inline functions Date: Sat, 21 Jun 2025 21:44:52 +0300 Message-ID: <20250621184454.8354-2-work@onurozkan.dev> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250621184454.8354-1-work@onurozkan.dev> References: <20250621184454.8354-1-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 --- rust/helpers/helpers.c | 3 ++- rust/helpers/ww_mutex.c | 39 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+), 1 deletion(-) create mode 100644 rust/helpers/ww_mutex.c diff --git a/rust/helpers/helpers.c b/rust/helpers/helpers.c index 0f1b5d115985..2f82774b34cf 100644 --- a/rust/helpers/helpers.c +++ b/rust/helpers/helpers.c @@ -27,9 +27,9 @@ #include "mm.c" #include "mutex.c" #include "page.c" -#include "platform.c" #include "pci.c" #include "pid_namespace.c" +#include "platform.c" #include "rbtree.c" #include "rcu.c" #include "refcount.c" @@ -43,4 +43,5 @@ #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 2.49.0