From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 D560E3769F6; Tue, 16 Jun 2026 03:04:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781579078; cv=none; b=ZoU6xTQm+U2Zgd1QFKjCGMIfse7cojBDNFT/ZqH+RxGQgLJVf6+C+hfgazV4MVq315JRQ8kj5zGzsZGG8Xjn+Yjqx6xx+0pKL69j0ytsiblWSIqw5JqpXWiQgUyJs/yZ0o7Ksrssj8oHNasUHerVtgJrZnOwwUbm7XGYyzbEg/c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781579078; c=relaxed/simple; bh=C1dL1K0prG3fQPpJnD/+ZHKOzTyQugyZG8Gk1LycBbc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=JDuBobVtp0/lBTekkyR1V8gcJbClab1Bu6sGAu0T6eIzUZ7U6lw7lwYwiRGHX9zVmZF7IOqnK0UgE5DDvCXRbqXxuCc13ozZVd7a/ghZG9lhDKhxk0bbeoxq7d6uYgn6Pql8qTo1R0f6BC6aIu6bcNeJMEO7gEAbDJqu+V4cdoU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WOYCw4l6; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="WOYCw4l6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E44501F000E9; Tue, 16 Jun 2026 03:04:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781579077; bh=n5HAW6YBJHZ7HyEQX9BmLx1ZIXSXhME0+yooX8MvTjY=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=WOYCw4l6MbiX/uUiM8aHxQMNddneICe5qJAEDKJ3JIHMpQU6S9Lqb8PMaodf2uJoX Ht2SbSxRwJ7lX1qxhX5dMzhO+CZFRubYkt+mq2y3QIyJgqTPhntufdml8WQsiRJ+WX ATtw8myBhJyMTs/Q7CWTdmBB/CLpBd9+DDc6OF9Qi9mXWmPVJLEdCwU1K3g91Gi3rh VT6EJ0+UDBmSCZdOw1YW5Mw6oRxdSUCqospQ6FACF+V7hmYTPpWVFQLGW/xB6PO730 3r3GJCwzHa8xcXUL2i3U/YCBmYnbLtyWtNlZckeLgf7poKQI9uSI+3ktHDAULkLapo uTx46clCvsM5w== Date: Mon, 15 Jun 2026 20:04:30 -0700 From: Nathan Chancellor To: Miguel Ojeda Cc: Jan Polensky , hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com, ojeda@kernel.org, peterz@infradead.org, jpoimboe@kernel.org, jbaron@akamai.com, aliceryhl@google.com, borntraeger@linux.ibm.com, svens@linux.ibm.com, boqun@kernel.org, gary@garyguo.net, bjorn3_gh@protonmail.com, lossin@kernel.org, a.hindborg@kernel.org, tmgross@umich.edu, dakr@kernel.org, rostedt@goodmis.org, ardb@kernel.org, linux-s390@vger.kernel.org, rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v6 6/6] s390: Enable Rust support Message-ID: <20260616030430.GA3415270@ax162> References: <20260608181451.3734956-1-japo@linux.ibm.com> <20260608181451.3734956-7-japo@linux.ibm.com> <20260615164013.GA249489@ax162> 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-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Mon, Jun 15, 2026 at 06:45:26PM +0200, Miguel Ojeda wrote: > On Mon, Jun 15, 2026 at 6:40 PM Nathan Chancellor wrote: > > > > With Rust 1.96.0, I see the following warning several times when > > building Rust code in -next: > > > > warning: unstable feature specified for `-Ctarget-feature`: `backchain` > > | > > = note: this feature is not stably supported; its behavior can change in the future > > > > warning: 1 warning emitted > > > > I assume this is expected? If so, is there a way to silence this warning? > > Yes, it seems so -- please see this thread: > > https://lore.kernel.org/rust-for-linux/CANiq72m4GVWFYqnxNtCHTPu7XcGewHB5LNwOoayTfnXs9pPbNg@mail.gmail.com/ > > If they are OK with it, then I guess it is fine, but it does mean CIs > can suffer a bit from it. > > I hope that helps. Ah, thanks for the pointer and sorry for the duplicate report. I have gone ahead and ignored this warning in my build reports for the time being. -- Cheers, Nathan