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 338C13E0758 for ; Mon, 19 Oct 2026 06:03:41 +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=1792389822; cv=none; b=TTmoj6oNbJ2v5ZqCYM5DaYWqe9a39A9XwxozRaSUa1yoxJT2CUBjtyxRwQc2QkOsmv65YTnhHAw6jukEwxmqVLW9TLtTNsSLZtUirwzn7FdnTbe4KSNvMXZIzQ/y3Pdv7AlMjgU4TspO6vvIvE1ejuTf8620i73Qorovd7N1XTY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792389822; c=relaxed/simple; bh=azh2X/0C7bZHYoWq667a2MdkfwvPoXsZasVCaYiUtUg=; h=Message-ID:From:Subject:To:In-Reply-To:References:Content-Type: Date; b=PmiIkRvUNMRSmHzhIdT2cr47j10rxuZnH8yNJX/4hFHD16DZLMtaxXtIMdG0h1pxHWGwF2mht6QwIxSLE90Rn9MwGPcV4vvoBP1lsr2Fw55MReaElq7M8uoRZzdH92NA3j7IMtnjTX/WqylvYRvF3vUWGRi76RV1JZXcTkh3BTs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Z1FM63G8; 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="Z1FM63G8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BFC5C1F000C4; Mon, 19 Oct 2026 06:03:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792389820; bh=azh2X/0C7bZHYoWq667a2MdkfwvPoXsZasVCaYiUtUg=; h=From:Subject:Reply-To:To:In-Reply-To:References:Date; b=Z1FM63G8ymUv6cJhvrbqWsDQTleSSAO6ZrbiUEl4DI9eKEeuYTkimnqEfg5mUbgg4 7sHkFu+o3gvPRaB8/JTxfXvnJ7KPiyWQsAasL7nfXdsnTq4aF6YkE+Mvn+Aw/TCLkR v2NB0JSQNVqA8euRMkPTRcQ2Se+YEAiiFpUDyh5BLKdDUjWzHJloGdwp5HBJNI1fRy k9t/15dMU0D6fGa4jSwmLr1wE7v69ChwUxIl00TYf3WIgBapRiCMXx0ZAIde5AodRg lsCEKhByQYygkoYarFVIesHSRPa1/aUpINf8VVBMkCJ+xd4zS7N129yqlZErrUhWUV Fadh2mqfXywAw== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH] serdev: handle devices without an ACPI or device tree node Reply-To: sashiko-reviews@lists.linux.dev To: "ChunAn Wu" , linux-serial@vger.kernel.org In-Reply-To: <20261019054513.1966382-1-an.wu@canonical.com> References: <20261019054513.1966382-1-an.wu@canonical.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Mon, 19 Oct 2026 06:03:40 +0000 Precedence: bulk X-Mailing-List: linux-serial@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: > Some drivers, such as dell-uart-backlight, manually instantiate serdev > clients without an ACPI companion or device tree node. >=20 > For these devices, both modalias helpers return -ENODEV. This makes the > modalias sysfs read fail and suppresses the device add uevent, even > though the device is registered and bound to its driver. >=20 > Return success with no modalias when neither metadata source exists. > Devices with ACPI or device tree metadata keep their existing alias > generation and error handling. >=20 > Signed-off-by: ChunAn Wu Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261019054513.1966= 382-1-an.wu@canonical.com?part=3D1