From patchwork Sun Oct 20 05:27:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zijun Hu X-Patchwork-Id: 13842979 Received: from pv50p00im-hyfv10021501.me.com (pv50p00im-hyfv10021501.me.com [17.58.6.48]) (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 498022030A for ; Sun, 20 Oct 2024 05:29:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=17.58.6.48 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729402142; cv=none; b=YMlEGzqmOgVFSSQc/De11iNSXToZ/a8p/Raz3dW8AxazwsMwGlAIiS1J9UCDDBKNagefCZUbcA70oq5iktkrUwkwXfId6RlQ6mXZS62YDntOAThY3gdMhgZXKxlrdMcIiJj3FUeelmxQB2kn3QK7fQjnryPQKtmV+4eDDmQ1qHE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729402142; c=relaxed/simple; bh=KAQIPjHa1pT2Qv7ml02HoE4WShDt3Q6Tb2e8TvTKe6g=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=nVi0Aehgj6vn0KCuSVBR6cHLQCMvBkw+Hg91e2LeJ8bCACPxnMacdZfWiDY0hzD94haPMoISocnl0T7txBrgbNfynNxX1WMUu4x++1CuVOZUN0L8ZS7c7Wf7KZraUKs4F1z9oK+0Sd4Tp4f8Y0czA3yNLDVUqu6cw6EnB6FTPqo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=icloud.com; spf=pass smtp.mailfrom=icloud.com; dkim=pass (2048-bit key) header.d=icloud.com header.i=@icloud.com header.b=FzsUprEn; arc=none smtp.client-ip=17.58.6.48 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=icloud.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=icloud.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=icloud.com header.i=@icloud.com header.b="FzsUprEn" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=icloud.com; s=1a1hai; t=1729402140; bh=Pzj4HJoWnL6JTLVf/LzhBRoFLqsQjjCajmU0HHRJmCM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To; b=FzsUprEnaIdjyWcgh24n4owqgCzwCEevOvHP5TBSaiI+GpFyVFF48q7MSLp5srmER 49VkFoBQ5XoQpE1j98Fz9ev9yh+BpUPjVvlh2BafPiLQAfKq2SsJQ07ku9Ojbg/XP2 qQjJHhxdEPOqQNcrLMXTrx5ZDPZaVo46b169DrWuHQ7/ae1Hvj/yoA0J4KYc6WN3H5 jtMwQfYBRhwhSywsNxKuMi4qXJ3zMT5IUD10mNexJhH0YpjHb6B0tjQL/CKMBbFHoH a5N7/J7iztEt7vk1VaMooWxFcs+nn+rmK9i3u80xPHGABylS8yFXBCxdO4oGvU8vqs Vz/Asg70Uh8Zg== Received: from [192.168.1.26] (pv50p00im-dlb-asmtp-mailmevip.me.com [17.56.9.10]) by pv50p00im-hyfv10021501.me.com (Postfix) with ESMTPSA id 24D4C2C0141; Sun, 20 Oct 2024 05:28:54 +0000 (UTC) From: Zijun Hu Date: Sun, 20 Oct 2024 13:27:51 +0800 Subject: [PATCH 6/6] phy: core: Simplify API of_phy_simple_xlate() implementation Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20241020-phy_core_fix-v1-6-078062f7da71@quicinc.com> References: <20241020-phy_core_fix-v1-0-078062f7da71@quicinc.com> In-Reply-To: <20241020-phy_core_fix-v1-0-078062f7da71@quicinc.com> To: Vinod Koul , Kishon Vijay Abraham I , Felipe Balbi , Greg Kroah-Hartman , Rob Herring , Arnd Bergmann , Lee Jones Cc: Zijun Hu , stable@vger.kernel.org, linux-phy@lists.infradead.org, netdev@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Zijun Hu X-Mailer: b4 0.14.1 X-Proofpoint-ORIG-GUID: 0V1SomLf6-r1ySnqSOHR_zWePw_E5J9r X-Proofpoint-GUID: 0V1SomLf6-r1ySnqSOHR_zWePw_E5J9r X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-20_02,2024-10-17_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 clxscore=1015 spamscore=0 malwarescore=0 phishscore=0 mlxscore=0 adultscore=0 bulkscore=0 mlxlogscore=999 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2308100000 definitions=main-2410200032 X-Apple-Remote-Links: v=1;h=KCk=;charset=UTF-8 From: Zijun Hu Simplify of_phy_simple_xlate() implementation by API class_find_device_by_of_node() which is also safer since it subsys_get() @phy_class subsystem firstly then iterates devices. Also comment its parameter @dev with unused in passing since the parameter provides no available input info but acts as an auto variable. Signed-off-by: Zijun Hu --- drivers/phy/phy-core.c | 19 ++++++------------- 1 file changed, 6 insertions(+), 13 deletions(-) diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c index 24bd619a33dd..102fc6b6ff71 100644 --- a/drivers/phy/phy-core.c +++ b/drivers/phy/phy-core.c @@ -748,7 +748,7 @@ EXPORT_SYMBOL_GPL(devm_phy_put); /** * of_phy_simple_xlate() - returns the phy instance from phy provider - * @dev: the PHY provider device + * @dev: the PHY provider device unused * @args: of_phandle_args (not used here) * * Intended to be used by phy provider for the common case where #phy-cells is @@ -759,20 +759,13 @@ EXPORT_SYMBOL_GPL(devm_phy_put); struct phy *of_phy_simple_xlate(struct device *dev, const struct of_phandle_args *args) { - struct phy *phy; - struct class_dev_iter iter; - - class_dev_iter_init(&iter, &phy_class, NULL, NULL); - while ((dev = class_dev_iter_next(&iter))) { - phy = to_phy(dev); - if (args->np != phy->dev.of_node) - continue; + struct device *target_dev; - class_dev_iter_exit(&iter); - return phy; + target_dev = class_find_device_by_of_node(&phy_class, args->np); + if (target_dev) { + put_device(target_dev); + return to_phy(target_dev); } - - class_dev_iter_exit(&iter); return ERR_PTR(-ENODEV); } EXPORT_SYMBOL_GPL(of_phy_simple_xlate);