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 7FAE83B3C01 for ; Wed, 30 Sep 2026 21:01:26 +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=1790802088; cv=none; b=pI5wh1IqKX4jFKWuexEGuudm4TIjS9oQJjdUdNnweTQrPaE+62me+dIuHqYLQt1NOYjmYlte067R+Pe8mQ0VbCyIa7njpPMTitPbf3jwY2dE3sXonrOwaFA/6o5ns7LXvRAxIWUDW0L0b6kK+bM6iIocRjxzFMjVLKQhAcY5PO4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790802088; c=relaxed/simple; bh=h8mTmxiMa6j0BDVpqQQE8qTtnaK2gCeJkwytdDxRrLg=; h=MIME-Version:References:In-Reply-To:From:Date:Message-ID:Subject: To:Cc:Content-Type; b=QJheeSPd2hepvGfI2aCfhxx4XLiw2YV3ZZ5GUXw7TX58RgbcQLF3bh3tLADoGgq6L8Ode+ttqgu5Z0jyavpoU42zDzcfVeXfJD+rlJMIy44HmwtF9QjFeu+L5KeMomLW+eqxRbzhk7JUr1yh4hvMNeQnu/VpeF8qyh/Y9CCbWCA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=CHTE7awB; 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="CHTE7awB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B402E1F0089D for ; Wed, 30 Sep 2026 21:01:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790802086; bh=h8mTmxiMa6j0BDVpqQQE8qTtnaK2gCeJkwytdDxRrLg=; h=References:In-Reply-To:From:Date:Subject:To:Cc; b=CHTE7awBingCn6+CYnIDvtmoEtX5CC/dNbrjVt90/jJs4T/nAh0ycXq+HTgAmXx5c t32uij/TWCWTFhDdgmmNkFHysE+ad6PFrM1iQrjzQ1Zhi+sqosXIaoFGtZGx5DtZg9 6Hlu8rmsFQQZo4venEv792b/0RfwRTH8ebSgvwJc2eb3L4tsanemFe6TTlmJRVSr5E oiBejPZorDHIHs/8e/6s14WuD/hiNNyNqQVGdqQ0lJtScqzUHhngi6XXHD6GJY+W5x GDX/9yZ8LB78g+ZyGwq23ha/NUy8cosSj43RgPEUQmSx7kqRvDx44EMzm0YPA3xb+0 95PWH9GmgKNmA== Received: by mail-lr2-f34.google.com with SMTP id 38308e7fff4ca-3a770b3ee1aso14672091fa.0 for ; Wed, 30 Sep 2026 14:01:26 -0700 (PDT) X-Forwarded-Encrypted: i=1; AKwUvByII7MylxPj1GFT7VLCtNK/9VmJZ5Qr6ZVBE/YBaoW/p47b4EBGlUmCQI0vDollIfy3zEuTp/rNpL5JQz4=@vger.kernel.org X-Gm-Message-State: AFq9FYIdQutc0AtiFXTPj5BPit782BEIiI+JH8A0kFMm1acMW/J3Xdoh SDqghoxGVT/Zk+s8968X1xFXVsxnJha4u0pe9AVqKdfrNtmrG9wRZVoK1tyW4hT6V8nrXEEzkA3 ZziUo5KO/78bt+C1tTWVK/xz+4TE0sh8= X-Received: by 2002:a05:651c:418d:b0:3a6:10d4:61c4 with SMTP id 38308e7fff4ca-3a779211d2bmr8529901fa.28.1790802085503; Wed, 30 Sep 2026 14:01:25 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20260918161407.2300-1-will@kernel.org> <20260918161407.2300-4-will@kernel.org> In-Reply-To: <20260918161407.2300-4-will@kernel.org> From: Linus Walleij Date: Wed, 30 Sep 2026 23:01:13 +0200 X-Gmail-Original-Message-ID: X-Gm-Features: AclHuK-CpLbmzPeMGgGn2WiiLWja7WmeJfZTnIg6LGM9G8yhcOxSzBBWyakJIfg Message-ID: Subject: Re: [PATCH v2 03/21] arm64: stackprotector: Temporarily disable per-task stackprotector To: Will Deacon Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Arnd Bergmann , Ard Biesheuvel , Ada Couprie Diaz , David Hildenbrand , Catalin Marinas , Vladimir Murzin , Mark Rutland , Mostafa Saleh , Lorenzo Stoakes , Oliver Upton , Marc Zyngier Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, Sep 18, 2026 at 6:14=E2=80=AFPM Will Deacon wrote= : > Per-task stackprotector relies on telling the compiler about the system > register used to hold a pointer to the current task. As we're about to > change that around, temporarily disable per-task stackprotector for now. > > Cc: Mark Rutland > Signed-off-by: Will Deacon That's not the only thing that breaks in the patches between here and re-enabling it, but what is the alternative other than to just squash all the patches into one :/ Reviewed-by: Linus Walleij Yours, Linus Walleij