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GET /api/1.1/patches/2220531/?format=api
{ "id": 2220531, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2220531/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260407130450.1489318-3-18255117159@163.com/", "project": { "id": 28, "url": "http://patchwork.ozlabs.org/api/1.1/projects/28/?format=api", "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": "<20260407130450.1489318-3-18255117159@163.com>", "date": "2026-04-07T13:04:49", "name": "[v7,2/3] PCI: Move pci_bus_speed2lnkctl2() to public header", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "08b81a88274452b007fdcfe2e4924027886c4740", "submitter": { "id": 89937, "url": "http://patchwork.ozlabs.org/api/1.1/people/89937/?format=api", "name": "Hans Zhang", "email": "18255117159@163.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260407130450.1489318-3-18255117159@163.com/mbox/", "series": [ { "id": 498981, "url": "http://patchwork.ozlabs.org/api/1.1/series/498981/?format=api", "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/2220531/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2220531/checks/", "tags": {}, "headers": { "Return-Path": "\n <linux-pci+bounces-52065-incoming=patchwork.ozlabs.org@vger.kernel.org>", "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=B1GcZFqB;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c04:e001:36c::12fc:5321; helo=tor.lore.kernel.org;\n envelope-from=linux-pci+bounces-52065-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=\"B1GcZFqB\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=220.197.31.4", "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 tor.lore.kernel.org (tor.lore.kernel.org\n [IPv6:2600:3c04:e001:36c::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 4fqmhM3Qn0z1xy1\n\tfor <incoming@patchwork.ozlabs.org>; Tue, 07 Apr 2026 23:07:47 +1000 (AEST)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby tor.lore.kernel.org (Postfix) with ESMTP id 6426130338A7\n\tfor <incoming@patchwork.ozlabs.org>; Tue, 7 Apr 2026 13:05:48 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 293A63B636E;\n\tTue, 7 Apr 2026 13:05:47 +0000 (UTC)", "from m16.mail.163.com (m16.mail.163.com [220.197.31.4])\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 076B83932CE;\n\tTue, 7 Apr 2026 13:05:43 +0000 (UTC)", "from Precision-7960.. (unknown [])\n\tby gzga-smtp-mtada-g1-1 (Coremail) with SMTP id\n _____wC33bQHAdVpBqSeDg--.5276S4;\n\tTue, 07 Apr 2026 21:05:15 +0800 (CST)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1775567147; cv=none;\n b=HpqcYki/jIhfTfUJBwGWaBSRKfrLFt58UoKmS+HqjeCtBQzY3jJhfufoQt8+SHAM4ZucCXbJf/3rNQWc/n7vJGtH/SBJgLZxOkY/VDXPJLTZo69WbAoJwiZ5vjl76OteFFerZAuOGYuBlrKEKyWhcWYMLMsr4+r0ikQpbHxfGHo=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1775567147; c=relaxed/simple;\n\tbh=aV4/PfQ0MMsxmwGCANhfhW0+XLmKLLxwbvgZJ3/pe+s=;\n\th=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References:\n\t MIME-Version;\n b=pGkpN/sxwi3uM2X/22xqCJVCw7RPYEWcZBHh3tkGB52JCnGydhCrRPbXj1sta41vxBVBp2qRVjsv+JrOYtXYsCxOWr1LPjK4AtGtnn5fm/RsvzdV8n8DFz0Qbg1wuAVsW1uz8A/s58EjccrrlSCqvaBy+wdzc8ddTDnEmZemVr0=", "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=B1GcZFqB; arc=none smtp.client-ip=220.197.31.4", "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=+2\n\tNxNNebefVVPcox12b5aqVRfl/zr6eJpvMHbIcrZV4=; b=B1GcZFqBPQEwyutQxJ\n\tyfZf9DB6XS5opaMvzuftkqjn5Ske5fdy3WmYDBQvVSjN5HiyEnfkszqerENkKblv\n\tgoFjjaaey3DLFjTVP/gNU3nkM9rvZzUjtWzyrem8TQ5g0BX5P86bkt8D/ul7ZOIt\n\tWSdXkccfRY1Y7Ae428o87Dx98=", "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 <shawn.lin@rock-chips.com>", "Subject": "[PATCH v7 2/3] PCI: Move pci_bus_speed2lnkctl2() to public header", "Date": "Tue, 7 Apr 2026 21:04:49 +0800", "Message-Id": "<20260407130450.1489318-3-18255117159@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": "<linux-pci.vger.kernel.org>", "List-Subscribe": "<mailto:linux-pci+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-pci+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-CM-TRANSID": "_____wC33bQHAdVpBqSeDg--.5276S4", "X-Coremail-Antispam": "1Uf129KBjvJXoWxWF48JFWUJw1fCry8Cw17ZFb_yoW5XF4rpa\n\t9xCFy5AF18Aw13AFZ0g3Wvqa45XFn3JFWUCrW3W395XFyay3s5Ga42vrWFyryaqrW0kry8\n\tJ3WUJF48C3WUtr7anT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2\n\t9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0piNzV5UUUUU=", "X-CM-SenderInfo": "rpryjkyvrrlimvzbiqqrwthudrp/xtbCwwsStWnVAQvN+QAA3t" }, "content": "Move the static array-based pci_bus_speed2lnkctl2() function from\nbwctrl.c to pci.h as a public inline function.\n\nThis provides efficient O(1) speed-to-LNKCTL2 value conversion using\nstatic array lookup, maintaining optimal performance while enabling\ncode reuse by other PCIe drivers.\n\nSigned-off-by: Hans Zhang <18255117159@163.com>\nReviewed-by: Shawn Lin <shawn.lin@rock-chips.com>\n---\n drivers/pci/pci.h | 18 ++++++++++++++++++\n drivers/pci/pcie/bwctrl.c | 17 -----------------\n 2 files changed, 18 insertions(+), 17 deletions(-)", "diff": "diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h\nindex f0a082bfd6f1..e0c2630e93f2 100644\n--- a/drivers/pci/pci.h\n+++ b/drivers/pci/pci.h\n@@ -2,6 +2,7 @@\n #ifndef DRIVERS_PCI_H\n #define DRIVERS_PCI_H\n \n+#include <asm/bug.h>\n #include <linux/align.h>\n #include <linux/bitfield.h>\n #include <linux/pci.h>\n@@ -611,6 +612,23 @@ static inline bool pcie_valid_speed(enum pci_bus_speed speed)\n \treturn (speed >= PCIE_SPEED_2_5GT) && (speed <= PCIE_SPEED_64_0GT);\n }\n \n+static inline u16 pci_bus_speed2lnkctl2(enum pci_bus_speed speed)\n+{\n+\tstatic const u8 speed_conv[] = {\n+\t\t[PCIE_SPEED_2_5GT] = PCI_EXP_LNKCTL2_TLS_2_5GT,\n+\t\t[PCIE_SPEED_5_0GT] = PCI_EXP_LNKCTL2_TLS_5_0GT,\n+\t\t[PCIE_SPEED_8_0GT] = PCI_EXP_LNKCTL2_TLS_8_0GT,\n+\t\t[PCIE_SPEED_16_0GT] = PCI_EXP_LNKCTL2_TLS_16_0GT,\n+\t\t[PCIE_SPEED_32_0GT] = PCI_EXP_LNKCTL2_TLS_32_0GT,\n+\t\t[PCIE_SPEED_64_0GT] = PCI_EXP_LNKCTL2_TLS_64_0GT,\n+\t};\n+\n+\tif (WARN_ON_ONCE(!pcie_valid_speed(speed)))\n+\t\treturn 0;\n+\n+\treturn speed_conv[speed];\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 ea82e326f164..d48021bfd844 100644\n--- a/drivers/pci/pcie/bwctrl.c\n+++ b/drivers/pci/pcie/bwctrl.c\n@@ -48,23 +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 u16 pci_bus_speed2lnkctl2(enum pci_bus_speed speed)\n-{\n-\tstatic const u8 speed_conv[] = {\n-\t\t[PCIE_SPEED_2_5GT] = PCI_EXP_LNKCTL2_TLS_2_5GT,\n-\t\t[PCIE_SPEED_5_0GT] = PCI_EXP_LNKCTL2_TLS_5_0GT,\n-\t\t[PCIE_SPEED_8_0GT] = PCI_EXP_LNKCTL2_TLS_8_0GT,\n-\t\t[PCIE_SPEED_16_0GT] = PCI_EXP_LNKCTL2_TLS_16_0GT,\n-\t\t[PCIE_SPEED_32_0GT] = PCI_EXP_LNKCTL2_TLS_32_0GT,\n-\t\t[PCIE_SPEED_64_0GT] = PCI_EXP_LNKCTL2_TLS_64_0GT,\n-\t};\n-\n-\tif (WARN_ON_ONCE(!pcie_valid_speed(speed)))\n-\t\treturn 0;\n-\n-\treturn speed_conv[speed];\n-}\n-\n static inline u16 pcie_supported_speeds2target_speed(u8 supported_speeds)\n {\n \treturn __fls(supported_speeds);\n", "prefixes": [ "v7", "2/3" ] }