{"id":2220527,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2220527/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pci/patch/20260407130450.1489318-2-18255117159@163.com/","project":{"id":28,"url":"http://patchwork.ozlabs.org/api/1.1/projects/28/?format=json","name":"Linux PCI development","link_name":"linux-pci","list_id":"linux-pci.vger.kernel.org","list_email":"linux-pci@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null},"msgid":"<20260407130450.1489318-2-18255117159@163.com>","date":"2026-04-07T13:04:48","name":"[v7,1/3] PCI: Add public pcie_valid_speed() for shared validation","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"2669b45eea7dcbce7fc0ffadaf64e5cfcaa382ee","submitter":{"id":89937,"url":"http://patchwork.ozlabs.org/api/1.1/people/89937/?format=json","name":"Hans Zhang","email":"18255117159@163.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-pci/patch/20260407130450.1489318-2-18255117159@163.com/mbox/","series":[{"id":498981,"url":"http://patchwork.ozlabs.org/api/1.1/series/498981/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-pci/list/?series=498981","date":"2026-04-07T13:04:48","name":"PCI: Refactor PCIe speed validation and conversion functions","version":7,"mbox":"http://patchwork.ozlabs.org/series/498981/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2220527/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2220527/checks/","tags":{},"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pci@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=163.com header.i=@163.com header.a=rsa-sha256\n header.s=s110527 header.b=J4SjkdJf;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c15:e001:75::12fc:5321; helo=sin.lore.kernel.org;\n envelope-from=linux-pci+bounces-52067-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (1024-bit key) header.d=163.com header.i=@163.com\n header.b=\"J4SjkdJf\"","smtp.subspace.kernel.org;\n arc=none smtp.client-ip=220.197.31.3","smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=163.com","smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=163.com"],"Received":["from sin.lore.kernel.org (sin.lore.kernel.org\n [IPv6:2600:3c15:e001:75::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fqmfj1kd1z1xy1\n\tfor ; Tue, 07 Apr 2026 23:06:21 +1000 (AEST)","from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby sin.lore.kernel.org (Postfix) with ESMTP id E3AA43004CAF\n\tfor ; Tue, 7 Apr 2026 13:06:05 +0000 (UTC)","from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 93902393DEB;\n\tTue, 7 Apr 2026 13:06:02 +0000 (UTC)","from m16.mail.163.com (m16.mail.163.com [220.197.31.3])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id 93FD4372B3B;\n\tTue, 7 Apr 2026 13:06:00 +0000 (UTC)","from Precision-7960.. (unknown [])\n\tby gzga-smtp-mtada-g1-1 (Coremail) with SMTP id\n _____wC33bQHAdVpBqSeDg--.5276S3;\n\tTue, 07 Apr 2026 21:05:14 +0800 (CST)"],"ARC-Seal":"i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1775567162; cv=none;\n b=J/at1MzhuZ9FpTcvhdH4KuoB+UiApv/OnaC13l9TYzMZkVhN1iUNHU5+A1gArM8Sw3Xg227RNToPbNN/ly7soJ76DWleq1fo/OiUk2LfM++eTVpeui9DkGNvzmZAcobA4FWIERNp4Sjwqbd0/H7nOB0khlLrPOHnJMz9WNUohws=","ARC-Message-Signature":"i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1775567162; c=relaxed/simple;\n\tbh=7yrnFa4LypoWmyLoJMHns6rimbkNQJbTMh4i9gJyCN0=;\n\th=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References:\n\t MIME-Version;\n b=WbTojsMME2184KGnI6yq4riZ+wiFwsvC7NFCXlYCg7+M+i+f86kDY3QFjg8IGj0GMu/4DKWArNaq/cnt2oGwUidhUrQVkkRzgF6bI2fmfePi45hULeDcWkD67Pp2YREREz+2mlOkcTq4YiyNaC+iAqsKUVL5LSfgJ8ew6gO8evQ=","ARC-Authentication-Results":"i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=163.com;\n spf=pass smtp.mailfrom=163.com;\n dkim=pass (1024-bit key) header.d=163.com header.i=@163.com\n header.b=J4SjkdJf; arc=none smtp.client-ip=220.197.31.3","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com;\n\ts=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=7A\n\tg8f/lEAoiqX1Hou+dDPidModpR0G2RIZx73bt52bU=; b=J4SjkdJfZXT9nyIXX9\n\tFzTogPSRsDe/ZJT0i22ZzulGrs9WwKEM36R/Ns2V07peHM5iEUqyBtsMk2AlLxIq\n\tMPow0ZyDyHkwr18SofHxEsQNeFQAgxzrMNfWpL3je06XZLi6QOqJgreuWOTyyH5L\n\tiINLoi3o8eJpLGfJz/ssPV7O4=","From":"Hans Zhang <18255117159@163.com>","To":"bhelgaas@google.com,\n\tlpieralisi@kernel.org,\n\tkw@linux.com,\n\tkwilczynski@kernel.org,\n\tmani@kernel.org,\n\tilpo.jarvinen@linux.intel.com,\n\tjingoohan1@gmail.com","Cc":"robh@kernel.org,\n\tlinux-pci@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org,\n\tHans Zhang <18255117159@163.com>,\n\tShawn Lin ","Subject":"[PATCH v7 1/3] PCI: Add public pcie_valid_speed() for shared\n validation","Date":"Tue, 7 Apr 2026 21:04:48 +0800","Message-Id":"<20260407130450.1489318-2-18255117159@163.com>","X-Mailer":"git-send-email 2.34.1","In-Reply-To":"<20260407130450.1489318-1-18255117159@163.com>","References":"<20260407130450.1489318-1-18255117159@163.com>","Precedence":"bulk","X-Mailing-List":"linux-pci@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-CM-TRANSID":"_____wC33bQHAdVpBqSeDg--.5276S3","X-Coremail-Antispam":"1Uf129KBjvJXoW7urW5CF43uw45Xw15Cw1rJFb_yoW8Ww18pa\n\tyDAa45AF18Aa15XF4Dt3W8ZFy5WFZ3JrWjkrW3u39xZF13A3s3Ja43tay8try2qrWIvF1U\n\tJa1YyF18Ca1jyr7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2\n\t9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0pRsa9fUUUUU=","X-CM-SenderInfo":"rpryjkyvrrlimvzbiqqrwthudrp/xtbC6woStWnVAQqqBQAA3e"},"content":"Extract the PCIe speed validation logic from bwctrl.c's static\npcie_valid_speed() into a public static inline function in pci.h.\n\nThis allows consistent speed range checks (2.5GT/s to 64.0GT/s) across\nmultiple drivers and functions, avoiding duplicate code and ensuring\nvalidation consistency as per PCIe specifications.\n\nSigned-off-by: Hans Zhang <18255117159@163.com>\nReviewed-by: Shawn Lin \n---\n drivers/pci/pci.h | 5 +++++\n drivers/pci/pcie/bwctrl.c | 5 -----\n 2 files changed, 5 insertions(+), 5 deletions(-)","diff":"diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h\nindex 4a14f88e543a..f0a082bfd6f1 100644\n--- a/drivers/pci/pci.h\n+++ b/drivers/pci/pci.h\n@@ -606,6 +606,11 @@ void pci_bus_put(struct pci_bus *bus);\n \t (speed) == PCIE_SPEED_2_5GT ? 2500*8/10 : \\\n \t 0)\n \n+static inline bool pcie_valid_speed(enum pci_bus_speed speed)\n+{\n+\treturn (speed >= PCIE_SPEED_2_5GT) && (speed <= PCIE_SPEED_64_0GT);\n+}\n+\n static inline int pcie_dev_speed_mbps(enum pci_bus_speed speed)\n {\n \tswitch (speed) {\ndiff --git a/drivers/pci/pcie/bwctrl.c b/drivers/pci/pcie/bwctrl.c\nindex c4c8d260bf96..ea82e326f164 100644\n--- a/drivers/pci/pcie/bwctrl.c\n+++ b/drivers/pci/pcie/bwctrl.c\n@@ -48,11 +48,6 @@ struct pcie_bwctrl_data {\n /* Prevent port removal during Link Speed changes. */\n static DECLARE_RWSEM(pcie_bwctrl_setspeed_rwsem);\n \n-static bool pcie_valid_speed(enum pci_bus_speed speed)\n-{\n-\treturn (speed >= PCIE_SPEED_2_5GT) && (speed <= PCIE_SPEED_64_0GT);\n-}\n-\n static u16 pci_bus_speed2lnkctl2(enum pci_bus_speed speed)\n {\n \tstatic const u8 speed_conv[] = {\n","prefixes":["v7","1/3"]}