From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1BF59C624DA for ; Thu, 3 Sep 2026 10:55:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=MS+xJQNxLdGqKYm3UoolvVPTT5UdPibXHtDgluZIrTk=; b=XAuBRObZslPbZUQDFDQhS5rg6D lr5Cby/6tPHpHMT+QZsgQdEZW5zx+Wn0sFJbwTXL7ey1OXfnHp7P8Nhr2S+HDhuT03lScS7jD3KJV RFkj7P1rNu83ewS8iz9vFcitMBcxoYaj033N+T/RNB0rJrIVek1J33oLgzEK7OygOSwSWbKo91e6d cJiiQkAnaDMkqwBMtXLZWUm6qxrbQAcF65hITAZUjxUrkVi6j8MJbdNbXsFTM8640o85Fqu6RaeMB bUOSQfHlGgf2fa00povHRy1DOz0Dx6DvkzDHqKL99Y8Q3MKByE0ncR/49nVbFyWXgH3jCwHGzJVyB MnoGGKcQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x256I-0000000H930-04za; Thu, 03 Sep 2026 10:55:22 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x256G-0000000H92e-3mLT for linux-arm-kernel@lists.infradead.org; Thu, 03 Sep 2026 10:55:20 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 4AEAB412D7; Thu, 3 Sep 2026 10:55:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B77E91F000E9; Thu, 3 Sep 2026 10:55:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788432920; bh=MS+xJQNxLdGqKYm3UoolvVPTT5UdPibXHtDgluZIrTk=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=ShAwQheQuHIXroeVMwUOAKxfDDGxf+Kjf5b1+cIW4NasQjSoB48stQnAGHdwlbZ2p 3EgtO9d+OmzXlpqUsK+0ygDClfybT0H/l/Oo2ay0Pq8mDQ3B1+9Ohj/AUcpmcSxkxE 9/o+60V7uhkZ9EKw0+44aMCQNNlEpKURjScsxmvr75acJU8lwEw6aDxYhSInQJrQnS auzyA+A5V125G5Oc4U+63Op5miLvv73nr0NEcwRwOwE3OxpZ7tJKQ2s1wmsy0ELjTu /z9O3hGFSAO9nem0mk/7cDagknWz3Y2a9XryXEe380ehCsIWI3iT4/AmMaxZN0hC1m vSsuzEGHIE9zQ== Date: Thu, 3 Sep 2026 11:55:14 +0100 From: Will Deacon To: Jeremy Linton Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Arnd Bergmann , Arnaldo Carvalho de Melo , Nick Desaulniers , David Matlack , Steffen Eiden , Andreas Grapentin , Catalin Marinas , Dave Martin , Mark Rutland , Marc Zyngier Subject: Re: [PATCH v2 0/2] Use __u128 in arm64 UAPI headers Message-ID: References: <20260626141730.5976-1-will@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Sep 02, 2026 at 09:21:32PM -0500, Jeremy Linton wrote: > On 6/26/26 9:17 AM, Will Deacon wrote: > > This is version two of the patch I previously sent here: > > > > https://lore.kernel.org/r/20260619130835.5678-1-will@kernel.org > > > > I even briefly queued that version up, but it exploded spectacularly > > when building the kselftests for arm64 [1] [2]. So the only change since > > v1 is the addition of a preliminary patch that adds the '__u128' typedef > > to the private copy of linux/types.h used by the tools/ directory. > > > > I plan to take this all via the arm64 tree unless anybody objects. > > This seems to be creating a interesting situation that the follow-on commit: > 10a47fb67340 tools: linux/types.h: Add 128-bit integer types for arm64 UAPI > structures > > Is missing from older kernel tooling/etc, which means the tools that end up > pulling this header in won't build on machines running 7.3 kernel headers. > > AKA, build/install master, switch back to an older branch and discover say > bpftool won't build anymore. Ah, I guess we need to backport 10a47fb67340 to stable, then? Will