From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpout.efficios.com (smtpout.efficios.com [167.114.26.122]) (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 A515D1E507; Thu, 6 Jun 2024 15:37:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=167.114.26.122 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717688250; cv=none; b=pdy3dUQD72u3MCHx+GpjVSBw7kNUUwTTkBQJzfZaDLzVNPSomG2SxUOe5kW21vOdwSUrOytahlncIgg/51QmoBJDwYnIg805EqIhlcrx+zEAiCaF6aVqbu3zs7w0OjeMl78XxIkyqxF9C+ysof5pC4FT1RKZsFVIp4Hs7nhCfSA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717688250; c=relaxed/simple; bh=sERLUi3uEU0Qc9/KrbcfY5lJQfKzvFrkjGp5BDt0QXI=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=MFWs/hfXiQZTFlvjodjFHNBBlQ5k9q6shZ2LnBbUOT/jyIDdHfKIrm9Kv0ZAVw+o55tfRSWDJ6R8vJunYrgX6gDkMuqpvLe/8q/6zG/8ix8HX6BBQP41/kCugF6P6xUFlqT9J+lxItjnOAItrHdA9Z1aZzAQZceei9Z8rNr/jw0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=efficios.com; spf=pass smtp.mailfrom=efficios.com; dkim=pass (2048-bit key) header.d=efficios.com header.i=@efficios.com header.b=OFP0rCXe; arc=none smtp.client-ip=167.114.26.122 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=efficios.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=efficios.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=efficios.com header.i=@efficios.com header.b="OFP0rCXe" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=efficios.com; s=smtpout1; t=1717688241; bh=sERLUi3uEU0Qc9/KrbcfY5lJQfKzvFrkjGp5BDt0QXI=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=OFP0rCXeZm7bkwYrqyCIbIaVZQEJeqlhiY+6svO8CIRGmigXQu+Rhwh1QrwidlnSQ XGtlZ+KcLwx9ZA3/aNWZ68wlOdph45Z6tg/59oLXiIKsD3cluTup8zupcPs6JDXGlo 09hd9dfVI6w6z/FCXAVmVbDLGmmbeEHc0K+qaKPqbrGdFxleN65lUCEXemHhKNiqcg iZISPQ4VZ4LAVKx4Y/W0dRHkYjgmuw72eppevBkGeWY0tl4a5ZUXPeT/8rkHJNrlQb YWQQ91+QCy4C9zg6toM9zODJfPg3eXR5cSjwRb893gtF6DbD8oYxMlZpWNHjiNTKch 3oZIQRoj7QmZQ== Received: from [172.16.0.134] (192-222-143-198.qc.cable.ebox.net [192.222.143.198]) by smtpout.efficios.com (Postfix) with ESMTPSA id 4Vw7k917bXz12pf; Thu, 6 Jun 2024 11:37:21 -0400 (EDT) Message-ID: Date: Thu, 6 Jun 2024 11:38:10 -0400 Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/3] rust: add static_key_false To: Alice Ryhl , Steven Rostedt , Masami Hiramatsu , Peter Zijlstra , Josh Poimboeuf , Jason Baron , Ard Biesheuvel , Miguel Ojeda , Alex Gaynor , Wedson Almeida Filho , Boqun Feng , Gary Guo , =?UTF-8?Q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg Cc: linux-trace-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org References: <20240606-tracepoint-v1-0-6551627bf51b@google.com> <20240606-tracepoint-v1-2-6551627bf51b@google.com> From: Mathieu Desnoyers Content-Language: en-US In-Reply-To: <20240606-tracepoint-v1-2-6551627bf51b@google.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 2024-06-06 11:05, Alice Ryhl wrote: > Add just enough support for static key so that we can use it from > tracepoints. Tracepoints rely on `static_key_false` even though it is > deprecated, so we add the same functionality to Rust. > > Signed-off-by: Alice Ryhl > --- > rust/kernel/lib.rs | 1 + > rust/kernel/static_key.rs | 87 +++++++++++++++++++++++++++++++++++++++++++++++ > scripts/Makefile.build | 2 +- > 3 files changed, 89 insertions(+), 1 deletion(-) > > diff --git a/rust/kernel/lib.rs b/rust/kernel/lib.rs > index d534b1178955..22e1fedd0774 100644 > --- a/rust/kernel/lib.rs > +++ b/rust/kernel/lib.rs > @@ -39,6 +39,7 @@ > pub mod print; > mod static_assert; > pub mod static_call; > +pub mod static_key; > #[doc(hidden)] > pub mod std_vendor; > pub mod str; > diff --git a/rust/kernel/static_key.rs b/rust/kernel/static_key.rs > new file mode 100644 > index 000000000000..6c3dbe14c98a > --- /dev/null > +++ b/rust/kernel/static_key.rs > @@ -0,0 +1,87 @@ > +// SPDX-License-Identifier: GPL-2.0 This static key code is something that can be generally useful both in kernel and user-space. Is there anything that would prevent licensing this under MIT right away instead so it could eventually be re-used more broadly in userspace as well ? Thanks, Mathieu -- Mathieu Desnoyers EfficiOS Inc. https://www.efficios.com