From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 9142A384251 for ; Tue, 3 Mar 2026 20:17:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772569036; cv=none; b=hlwlimks6Pe8oPONmopgPsCtgCQk7zH9NlAI8fN11Yr7mupcbFFWOnyuTVVy47RD/bl66uKQ3Ov46cwAwZpPnFs0OGti8OFzbOctMzQsX1nrdmoiGrjnpY+xRCai1sGuxPkYX4bgDZoPIYsUOOAgax0G+CsWtj4nGAdgbXRCyjQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772569036; c=relaxed/simple; bh=AKPWmh4rrmUMnmPi7iqjv6GVZwNv+zZVTWNcBuZTt+o=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=rUJT9MywXyLv+pGOPjo1VD5pPN1NAk6Ydy+E4QBSD0WNjIDdfHnyFLk1olFRP6NDwPaPnQ41OcyYKfoJPDTwWGma8UpND5sAInytbDiyLiLF3fhrQgeVQ3hCLm1RXt/ggm8eCwKogS6cYYQ5e+8x/4vN4Ol3Ni72lP3YoHKcdN4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=o9w59Va0; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="o9w59Va0" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B0E02C116C6; Tue, 3 Mar 2026 20:17:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772569036; bh=AKPWmh4rrmUMnmPi7iqjv6GVZwNv+zZVTWNcBuZTt+o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=o9w59Va0ExVnBDTZuef08TBp5gJmdQhTz4EE/vMYsrtZRPSLTFm15gZtXSxncZVn4 iZMVpbs96rk01CgoJ3E76jUM0p9xPdK/84fb1rJYDTJMP4o8muHZU4r7bqTxp0KU5w uK3rrjaOqOdOcAe9sk8HNOztMI+mJNmXpt4ixRoAtqCRAb57x1PJVO+HUMxEhugGcX RxlWTGrWf4GosqtZJDZ/vouzJU9I/iaFALIBy3ZgkJRuqh3IZ0iUSOMoX071DejJf7 qSUZtvcJI6xAFsrxsAc0W9y2/4axoAQXpy54QL7awLPO7w7pxnlDTCiPuCJGskuz60 QAXdVXBycnY+g== Received: from phl-compute-12.internal (phl-compute-12.internal [10.202.2.52]) by mailfauth.phl.internal (Postfix) with ESMTP id DD49BF40068; Tue, 3 Mar 2026 15:17:14 -0500 (EST) Received: from phl-frontend-04 ([10.202.2.163]) by phl-compute-12.internal (MEProxy); Tue, 03 Mar 2026 15:17:14 -0500 X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefgedrtddtgddvieduheefucetufdoteggodetrf dotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfurfetoffkrfgpnffqhgenuceu rghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujf gurhephffvvefufffkofgjfhgggfestdekredtredttdenucfhrhhomhepuehoqhhunhcu hfgvnhhguceosghoqhhunheskhgvrhhnvghlrdhorhhgqeenucggtffrrghtthgvrhhnpe ekieffgeevhefgudffveffheettdfgkeeilefhhfduhedugedvhedtteegvdeugfenucff ohhmrghinhepmhhsghhiugdrlhhinhhknecuvehluhhsthgvrhfuihiivgeptdenucfrrg hrrghmpehmrghilhhfrhhomhepsghoqhhunhdomhgvshhmthhprghuthhhphgvrhhsohhn rghlihhthidqudeijedtleekgeejuddqudejjeekheehhedvqdgsohhquhhnpeepkhgvrh hnvghlrdhorhhgsehfihigmhgvrdhnrghmvgdpnhgspghrtghpthhtohepudejpdhmohgu vgepshhmthhpohhuthdprhgtphhtthhopehpvghtvghriiesihhnfhhrrgguvggrugdroh hrghdprhgtphhtthhopeifihhllheskhgvrhhnvghlrdhorhhgpdhrtghpthhtohepmhgr rhhkrdhruhhtlhgrnhgusegrrhhmrdgtohhmpdhrtghpthhtohepohhjvggurgeskhgvrh hnvghlrdhorhhgpdhrtghpthhtohepsghoqhhunheskhgvrhhnvghlrdhorhhgpdhrtghp thhtohepghgrrhihsehgrghrhihguhhordhnvghtpdhrtghpthhtohepsghjohhrnhefpg hghhesphhrohhtohhnmhgrihhlrdgtohhmpdhrtghpthhtoheplhhoshhsihhnsehkvghr nhgvlhdrohhrghdprhgtphhtthhopegrrdhhihhnuggsohhrgheskhgvrhhnvghlrdhorh hg X-ME-Proxy: Feedback-ID: i8dbe485b:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Tue, 3 Mar 2026 15:17:14 -0500 (EST) From: Boqun Feng To: Peter Zijlstra Cc: Will Deacon , Mark Rutland , Miguel Ojeda , Boqun Feng , Gary Guo , =?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Danilo Krummrich , "Thomas Gleixner" , "Ingo Molnar" , rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, Boqun Feng Subject: [PATCH 03/13] rust: helpers: Generify the definitions of rust_helper_*_{read,set}* Date: Tue, 3 Mar 2026 12:16:51 -0800 Message-ID: <20260303201701.12204-4-boqun@kernel.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260303201701.12204-1-boqun@kernel.org> References: <20260303201701.12204-1-boqun@kernel.org> Precedence: bulk X-Mailing-List: rust-for-linux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Boqun Feng To support atomic pointers, more {read,set} helpers will be introduced, hence define macros to generate these helpers to ease the introduction of the future helpers. Signed-off-by: Boqun Feng Link: https://patch.msgid.link/20260117122243.24404-2-boqun.feng@gmail.com --- rust/helpers/atomic_ext.c | 53 +++++++++++++++++---------------------- 1 file changed, 23 insertions(+), 30 deletions(-) diff --git a/rust/helpers/atomic_ext.c b/rust/helpers/atomic_ext.c index 7d0c2bd340da..f471c1ff123d 100644 --- a/rust/helpers/atomic_ext.c +++ b/rust/helpers/atomic_ext.c @@ -4,45 +4,38 @@ #include #include -__rust_helper s8 rust_helper_atomic_i8_read(s8 *ptr) -{ - return READ_ONCE(*ptr); -} - -__rust_helper s8 rust_helper_atomic_i8_read_acquire(s8 *ptr) -{ - return smp_load_acquire(ptr); -} - -__rust_helper s16 rust_helper_atomic_i16_read(s16 *ptr) -{ - return READ_ONCE(*ptr); +#define GEN_READ_HELPER(tname, type) \ +__rust_helper type rust_helper_atomic_##tname##_read(type *ptr) \ +{ \ + return READ_ONCE(*ptr); \ } -__rust_helper s16 rust_helper_atomic_i16_read_acquire(s16 *ptr) -{ - return smp_load_acquire(ptr); +#define GEN_SET_HELPER(tname, type) \ +__rust_helper void rust_helper_atomic_##tname##_set(type *ptr, type val) \ +{ \ + WRITE_ONCE(*ptr, val); \ } -__rust_helper void rust_helper_atomic_i8_set(s8 *ptr, s8 val) -{ - WRITE_ONCE(*ptr, val); +#define GEN_READ_ACQUIRE_HELPER(tname, type) \ +__rust_helper type rust_helper_atomic_##tname##_read_acquire(type *ptr) \ +{ \ + return smp_load_acquire(ptr); \ } -__rust_helper void rust_helper_atomic_i8_set_release(s8 *ptr, s8 val) -{ - smp_store_release(ptr, val); +#define GEN_SET_RELEASE_HELPER(tname, type) \ +__rust_helper void rust_helper_atomic_##tname##_set_release(type *ptr, type val)\ +{ \ + smp_store_release(ptr, val); \ } -__rust_helper void rust_helper_atomic_i16_set(s16 *ptr, s16 val) -{ - WRITE_ONCE(*ptr, val); -} +#define GEN_READ_SET_HELPERS(tname, type) \ + GEN_READ_HELPER(tname, type) \ + GEN_SET_HELPER(tname, type) \ + GEN_READ_ACQUIRE_HELPER(tname, type) \ + GEN_SET_RELEASE_HELPER(tname, type) \ -__rust_helper void rust_helper_atomic_i16_set_release(s16 *ptr, s16 val) -{ - smp_store_release(ptr, val); -} +GEN_READ_SET_HELPERS(i8, s8) +GEN_READ_SET_HELPERS(i16, s16) /* * xchg helpers depend on ARCH_SUPPORTS_ATOMIC_RMW and on the -- 2.50.1 (Apple Git-155)