From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.4]) (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 151903655E7 for ; Sun, 20 Sep 2026 10:59:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.4 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789901985; cv=none; b=sujCEdVMPg7G7kaBkqeg4hwdCEq7vKSyf5dNiiugPyRjXN5TuuAghb+Wq95526UB8auujS0KXjz2sc4yMt3M128/COzdoj/dlCCEvN7/6B9hC3oH+1WcUOjUNX3UbnVzrm8tGtz99YcH0DqfeF7krtsdj8kAL+uoJ4M5hoUvWo4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789901985; c=relaxed/simple; bh=qP7BZyqYOdBQ65RcQ4iiHNxUFpSD4qzk8uvRGQo2bdg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=op8tkc9lf2g/E0ih8ZnTc9lDIval2mcEetOt50TwKqbsYaiJUOc57Ie6x7j/k6q7jVKMvP66qMOAyq/JFGeTu6XkUpVF5rnn8xgszdJUryxH8ENzhecCebHsD28YaNSaCAVhc14V4LFXbwalgI5TDAFswO3mwxR8/lQ3xdx2nl8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b=Rcw76BGi; arc=none smtp.client-ip=117.135.210.4 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=163.com header.i=@163.com header.b="Rcw76BGi" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-ID:Content-Type: MIME-Version; bh=qP7BZyqYOdBQ65RcQ4iiHNxUFpSD4qzk8uvRGQo2bdg=; b=Rcw76BGi1nVNBTMvFjb01jgi3+CZ0Gkx207i3iKNEpI25/7C5vXAuVoKAysfuE okmKVtqRWwdyEOvU0g2OUWEbZimCzYJRczfrPUHphigFcZyrCuLDlY+Wa/XEePLS 91GCVLvDx3752BBw+S7FifQKKvV1b6c+BfaxUyp7KpvHE= Received: from LAPTOP-EGO65D59.localdomain (unknown []) by gzga-smtp-mtada-g1-0 (Coremail) with SMTP id _____wAXnqmQvK9qJDq2Bg--.514S2; Sun, 20 Sep 2026 18:59:29 +0800 (CST) From: =?utf-8?b?5p6X5r+s5ZOy?= To: gregkh@linuxfoundation.org Cc: linux-kernel@vger.kernel.org, m18667909625@163.com Subject: Re: [PATCH] kernel: add system_energy_efficiency syscall (nr 337) Date: Sun, 20 Sep 2026 10:59:24 -0000 Message-ID: <178990196466.46951.9233256191978707743@163.com> In-Reply-To: <20260920100714.46206-1-m18667909625@163.com> References: <20260920100714.46206-1-m18667909625@163.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID:_____wAXnqmQvK9qJDq2Bg--.514S2 X-Coremail-Antispam: 1Uf129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7v73 VFW2AGmfu7bjvjm3AaLaJ3UbIYCTnIWIevJa73UjIFyTuYvjfU4LIDUUUUU X-CM-SenderInfo: bpryllixzqmlisv6il2tof0z/xtbC4hLZ32qvvJIVaAAA3g Hi Greg, Thanks for the quick review! You are right: GPU power readings are already available from userspace via /sys/class/hwmon/*/power1_input, and display devices can be enumerated through /sys/bus/pci/devices. I do not have a use case that requires gathering this data from within the kernel, so please drop this patch. Thanks again for taking the time to review it. Best regards, 林濬哲