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GET /api/patches/2231397/?format=api
{ "id": 2231397, "url": "http://patchwork.ozlabs.org/api/patches/2231397/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260430162420.42839-14-18255117159@163.com/", "project": { "id": 28, "url": "http://patchwork.ozlabs.org/api/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, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260430162420.42839-14-18255117159@163.com>", "list_archive_url": null, "date": "2026-04-30T16:24:17", "name": "[RESEND,13/16] PCI: qcom: Use FIELD_MODIFY()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "a67ce039e6dab3d85a4b0fe32a37718757f12628", "submitter": { "id": 89937, "url": "http://patchwork.ozlabs.org/api/people/89937/?format=api", "name": "Hans Zhang", "email": "18255117159@163.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260430162420.42839-14-18255117159@163.com/mbox/", "series": [ { "id": 502340, "url": "http://patchwork.ozlabs.org/api/series/502340/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=502340", "date": "2026-04-30T16:24:06", "name": "PCI: Use FIELD_MODIFY() to simplify bitfield operations", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/502340/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2231397/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2231397/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-pci+bounces-53524-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=IFG78m6c;\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-53524-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=\"IFG78m6c\"", "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 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 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g60BY3kNMz1yGq\n\tfor <incoming@patchwork.ozlabs.org>; Fri, 01 May 2026 02:34:45 +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 79E6B302E209\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 30 Apr 2026 16:26:20 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 94DCA47DD5B;\n\tThu, 30 Apr 2026 16:25:09 +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 1C5A947D92B;\n\tThu, 30 Apr 2026 16:25:06 +0000 (UTC)", "from zhb.. (unknown [])\n\tby gzga-smtp-mtada-g1-2 (Coremail) with SMTP id\n _____wA3Df0_gvNpcypXCg--.51103S7;\n\tFri, 01 May 2026 00:24:34 +0800 (CST)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1777566309; cv=none;\n b=HqtfJ+vQB17nD9EfhUI6b/MCiK0vWjKASo3Ty0iqXv4J31FyWehAvBkATQ1v8JRUF5sd/w6Zklkkv9D5gVWZw/H3UUwBL3vVnKXu7YccHYPV/c4+1/0SW223uWCHAGmNmn7KnUJCEiGnvR4IO0Th89yUtNhh07h6pbt5vsceIy4=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1777566309; c=relaxed/simple;\n\tbh=vZ4uOzaFRCb9PY8JtFYGG0Um0DEUay7WKzS4t7ZqMa0=;\n\th=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References:\n\t MIME-Version;\n b=jrq4iw3ATbZoMXr1ecTz+vovkH9mt++2a5tWIgGMzwbZD//eft2SyLfQIMwQXI9F+iOCyXuJZZjvTtwxuRoDnaGyYDWx51B7SV/OTgB6LZO0Q4cU9dVzX82ZkdxWn4opti7gOr/OmCxbr/qe+HisVZQfe8IHv5T85pc0i2xexfE=", "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=IFG78m6c; 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=cD\n\tl2ZCPmDUg/728GazbNRHsswC8Xpvy+YlB6anU9tzI=; b=IFG78m6c6ZXsOK5K31\n\tZWx43DnN8XMZnab8e32qJ1aoEEloln6QLsZka3BvPQb/7dVJg5s4EwiR9k1MBtpU\n\tMXmEN03jG7+e3r50jXpztcbkvotEfpfWn028NDoxrKBbCHFSjPUGo31UufNl/E2I\n\t+G0xDWMasjtnzJuZyPa5FoIvg=", "From": "Hans Zhang <18255117159@163.com>", "To": "bhelgaas@google.com,\n\tlpieralisi@kernel.org,\n\tkwilczynski@kernel.org,\n\tmani@kernel.org,\n\tjingoohan1@gmail.com", "Cc": "robh@kernel.org,\n\ts32@nxp.com,\n\tlinux-pci@vger.kernel.org,\n\tlinux-kernel@vger.kernel.org,\n\tHans Zhang <18255117159@163.com>", "Subject": "[RESEND PATCH 13/16] PCI: qcom: Use FIELD_MODIFY()", "Date": "Fri, 1 May 2026 00:24:17 +0800", "Message-Id": "<20260430162420.42839-14-18255117159@163.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20260430162420.42839-1-18255117159@163.com>", "References": "<20260430162420.42839-1-18255117159@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": "_____wA3Df0_gvNpcypXCg--.51103S7", "X-Coremail-Antispam": "1Uf129KBjvJXoWxZr45CFWrXFWDuFy3ury5CFg_yoW7Jw4Upa\n\t48t3Z7JF18tF4UurZIkanrur1F9FsxAw12kanxKanruasFyFZrWa90y3sxtrn7JF4UKFya\n\tk348AFW3GFySyrUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2\n\t9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0pRP8nOUUUUU=", "X-CM-SenderInfo": "rpryjkyvrrlimvzbiqqrwthudrp/xtbCxAMIq2nzgkNcVAAA33" }, "content": "Use FIELD_MODIFY() to remove open-coded bit manipulation.\nNo functional change intended.\n\nSigned-off-by: Hans Zhang <18255117159@163.com>\n---\n drivers/pci/controller/dwc/pcie-qcom-common.c | 40 +++++++------------\n drivers/pci/controller/dwc/pcie-qcom-ep.c | 6 +--\n 2 files changed, 16 insertions(+), 30 deletions(-)", "diff": "diff --git a/drivers/pci/controller/dwc/pcie-qcom-common.c b/drivers/pci/controller/dwc/pcie-qcom-common.c\nindex 5aa73c628737..0da73caf2011 100644\n--- a/drivers/pci/controller/dwc/pcie-qcom-common.c\n+++ b/drivers/pci/controller/dwc/pcie-qcom-common.c\n@@ -30,20 +30,15 @@ void qcom_pcie_common_set_equalization(struct dw_pcie *pci)\n \n \t\treg = dw_pcie_readl_dbi(pci, GEN3_RELATED_OFF);\n \t\treg &= ~GEN3_RELATED_OFF_GEN3_ZRXDC_NONCOMPL;\n-\t\treg &= ~GEN3_RELATED_OFF_RATE_SHADOW_SEL_MASK;\n-\t\treg |= FIELD_PREP(GEN3_RELATED_OFF_RATE_SHADOW_SEL_MASK,\n-\t\t\t speed - PCIE_SPEED_8_0GT);\n+\t\tFIELD_MODIFY(GEN3_RELATED_OFF_RATE_SHADOW_SEL_MASK, ®,\n+\t\t\t speed - PCIE_SPEED_8_0GT);\n \t\tdw_pcie_writel_dbi(pci, GEN3_RELATED_OFF, reg);\n \n \t\treg = dw_pcie_readl_dbi(pci, GEN3_EQ_FB_MODE_DIR_CHANGE_OFF);\n-\t\treg &= ~(GEN3_EQ_FMDC_T_MIN_PHASE23 |\n-\t\t\tGEN3_EQ_FMDC_N_EVALS |\n-\t\t\tGEN3_EQ_FMDC_MAX_PRE_CURSOR_DELTA |\n-\t\t\tGEN3_EQ_FMDC_MAX_POST_CURSOR_DELTA);\n-\t\treg |= FIELD_PREP(GEN3_EQ_FMDC_T_MIN_PHASE23, 0x1) |\n-\t\t\tFIELD_PREP(GEN3_EQ_FMDC_N_EVALS, 0xd) |\n-\t\t\tFIELD_PREP(GEN3_EQ_FMDC_MAX_PRE_CURSOR_DELTA, 0x5) |\n-\t\t\tFIELD_PREP(GEN3_EQ_FMDC_MAX_POST_CURSOR_DELTA, 0x5);\n+\t\tFIELD_MODIFY(GEN3_EQ_FMDC_T_MIN_PHASE23, ®, 0x1);\n+\t\tFIELD_MODIFY(GEN3_EQ_FMDC_N_EVALS, ®, 0xd);\n+\t\tFIELD_MODIFY(GEN3_EQ_FMDC_MAX_PRE_CURSOR_DELTA, ®, 0x5);\n+\t\tFIELD_MODIFY(GEN3_EQ_FMDC_MAX_POST_CURSOR_DELTA, ®, 0x5);\n \t\tdw_pcie_writel_dbi(pci, GEN3_EQ_FB_MODE_DIR_CHANGE_OFF, reg);\n \n \t\treg = dw_pcie_readl_dbi(pci, GEN3_EQ_CONTROL_OFF);\n@@ -61,14 +56,10 @@ void qcom_pcie_common_set_16gt_lane_margining(struct dw_pcie *pci)\n \tu32 reg;\n \n \treg = dw_pcie_readl_dbi(pci, GEN4_LANE_MARGINING_1_OFF);\n-\treg &= ~(MARGINING_MAX_VOLTAGE_OFFSET |\n-\t\tMARGINING_NUM_VOLTAGE_STEPS |\n-\t\tMARGINING_MAX_TIMING_OFFSET |\n-\t\tMARGINING_NUM_TIMING_STEPS);\n-\treg |= FIELD_PREP(MARGINING_MAX_VOLTAGE_OFFSET, 0x24) |\n-\t\tFIELD_PREP(MARGINING_NUM_VOLTAGE_STEPS, 0x78) |\n-\t\tFIELD_PREP(MARGINING_MAX_TIMING_OFFSET, 0x32) |\n-\t\tFIELD_PREP(MARGINING_NUM_TIMING_STEPS, 0x10);\n+\tFIELD_MODIFY(MARGINING_MAX_VOLTAGE_OFFSET, ®, 0x24);\n+\tFIELD_MODIFY(MARGINING_NUM_VOLTAGE_STEPS, ®, 0x78);\n+\tFIELD_MODIFY(MARGINING_MAX_TIMING_OFFSET, ®, 0x32);\n+\tFIELD_MODIFY(MARGINING_NUM_TIMING_STEPS, ®, 0x10);\n \tdw_pcie_writel_dbi(pci, GEN4_LANE_MARGINING_1_OFF, reg);\n \n \treg = dw_pcie_readl_dbi(pci, GEN4_LANE_MARGINING_2_OFF);\n@@ -76,13 +67,10 @@ void qcom_pcie_common_set_16gt_lane_margining(struct dw_pcie *pci)\n \t\tMARGINING_SAMPLE_REPORTING_METHOD |\n \t\tMARGINING_IND_LEFT_RIGHT_TIMING |\n \t\tMARGINING_VOLTAGE_SUPPORTED;\n-\treg &= ~(MARGINING_IND_UP_DOWN_VOLTAGE |\n-\t\tMARGINING_MAXLANES |\n-\t\tMARGINING_SAMPLE_RATE_TIMING |\n-\t\tMARGINING_SAMPLE_RATE_VOLTAGE);\n-\treg |= FIELD_PREP(MARGINING_MAXLANES, pci->num_lanes) |\n-\t\tFIELD_PREP(MARGINING_SAMPLE_RATE_TIMING, 0x3f) |\n-\t\tFIELD_PREP(MARGINING_SAMPLE_RATE_VOLTAGE, 0x3f);\n+\treg &= ~MARGINING_IND_UP_DOWN_VOLTAGE;\n+\tFIELD_MODIFY(MARGINING_MAXLANES, ®, pci->num_lanes);\n+\tFIELD_MODIFY(MARGINING_SAMPLE_RATE_TIMING, ®, 0x3f);\n+\tFIELD_MODIFY(MARGINING_SAMPLE_RATE_VOLTAGE, ®, 0x3f);\n \tdw_pcie_writel_dbi(pci, GEN4_LANE_MARGINING_2_OFF, reg);\n }\n EXPORT_SYMBOL_GPL(qcom_pcie_common_set_16gt_lane_margining);\ndiff --git a/drivers/pci/controller/dwc/pcie-qcom-ep.c b/drivers/pci/controller/dwc/pcie-qcom-ep.c\nindex 257c2bcb5f76..56184e6ca6e6 100644\n--- a/drivers/pci/controller/dwc/pcie-qcom-ep.c\n+++ b/drivers/pci/controller/dwc/pcie-qcom-ep.c\n@@ -494,15 +494,13 @@ static int qcom_pcie_perst_deassert(struct dw_pcie *pci)\n \t/* Set the L0s Exit Latency to 2us-4us = 0x6 */\n \toffset = dw_pcie_find_capability(pci, PCI_CAP_ID_EXP);\n \tval = dw_pcie_readl_dbi(pci, offset + PCI_EXP_LNKCAP);\n-\tval &= ~PCI_EXP_LNKCAP_L0SEL;\n-\tval |= FIELD_PREP(PCI_EXP_LNKCAP_L0SEL, 0x6);\n+\tFIELD_MODIFY(PCI_EXP_LNKCAP_L0SEL, &val, 0x6);\n \tdw_pcie_writel_dbi(pci, offset + PCI_EXP_LNKCAP, val);\n \n \t/* Set the L1 Exit Latency to be 32us-64 us = 0x6 */\n \toffset = dw_pcie_find_capability(pci, PCI_CAP_ID_EXP);\n \tval = dw_pcie_readl_dbi(pci, offset + PCI_EXP_LNKCAP);\n-\tval &= ~PCI_EXP_LNKCAP_L1EL;\n-\tval |= FIELD_PREP(PCI_EXP_LNKCAP_L1EL, 0x6);\n+\tFIELD_MODIFY(PCI_EXP_LNKCAP_L1EL, &val, 0x6);\n \tdw_pcie_writel_dbi(pci, offset + PCI_EXP_LNKCAP, val);\n \n \tdw_pcie_dbi_ro_wr_dis(pci);\n", "prefixes": [ "RESEND", "13/16" ] }