Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/1.1/patches/2226574/?format=api
{ "id": 2226574, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2226574/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260422161407.118748-16-kwilczynski@kernel.org/", "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": "<20260422161407.118748-16-kwilczynski@kernel.org>", "date": "2026-04-22T16:13:58", "name": "[v6,15/24] alpha/PCI: Remove WARN from __pci_mmap_fits()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "6955ab90c594ec0037a2a98a3aa2647bac325064", "submitter": { "id": 86709, "url": "http://patchwork.ozlabs.org/api/1.1/people/86709/?format=api", "name": "Krzysztof Wilczyński", "email": "kwilczynski@kernel.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260422161407.118748-16-kwilczynski@kernel.org/mbox/", "series": [ { "id": 501041, "url": "http://patchwork.ozlabs.org/api/1.1/series/501041/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=501041", "date": "2026-04-22T16:13:46", "name": "PCI: Convert all dynamic sysfs attributes to static", "version": 6, "mbox": "http://patchwork.ozlabs.org/series/501041/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2226574/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2226574/checks/", "tags": {}, "headers": { "Return-Path": "\n <linux-pci+bounces-53001-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 (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=Kjky3Qp8;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c09:e001:a7::12fc:5321; helo=sto.lore.kernel.org;\n envelope-from=linux-pci+bounces-53001-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=\"Kjky3Qp8\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=10.30.226.201" ], "Received": [ "from sto.lore.kernel.org (sto.lore.kernel.org\n [IPv6:2600:3c09:e001:a7::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 4g147r5bYGz1y2d\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 23 Apr 2026 02:15:20 +1000 (AEST)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby sto.lore.kernel.org (Postfix) with ESMTP id 18AD630071FD\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 22 Apr 2026 16:15:13 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id AF11D325495;\n\tWed, 22 Apr 2026 16:15:04 +0000 (UTC)", "from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org\n [10.30.226.201])\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 8B77B37D12E;\n\tWed, 22 Apr 2026 16:15:04 +0000 (UTC)", "by smtp.kernel.org (Postfix) with ESMTPSA id F1AA7C2BCB7;\n\tWed, 22 Apr 2026 16:15:00 +0000 (UTC)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1776874504; cv=none;\n b=p3gZNB8OnylWevGYL+yL1RWYeyZmj0cUNlWFlOU/xCWaBzGR8gjOtBd/g4qRBKxcncxizrAV0VnDAPoMJUIA6D7kg1EhUAIePxbcAhr5cdxUqk+Ywp41MgD3QR2RhFeOmI89k2WkZssHV4pP+PLAKWYWJr+ulAj5ANyjgapp+iM=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1776874504; c=relaxed/simple;\n\tbh=ltS0CwScmU/7W/k23zstFp4KU0BXOTAMQrPkEPzvQfw=;\n\th=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References:\n\t MIME-Version:Content-Type;\n b=g/tldm7x2eSN/hYMl+mbp9syVpeBUcG98N/CLjWNK12Rpuw37JqKcvQHjhdi0YvEXBNoHAYu8bhmqiYczEVZbWSYeNQTQuF8BhpI20QO0kuIuNmrrBzRxDndHTcqRuv6nZ9ZYG4v741tauhKANu/4PRnV/hI+P0SaItIpLkd+xA=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.b=Kjky3Qp8; arc=none smtp.client-ip=10.30.226.201", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1776874504;\n\tbh=ltS0CwScmU/7W/k23zstFp4KU0BXOTAMQrPkEPzvQfw=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=Kjky3Qp8t/knDHFwKUrhkLsr0qZD1jVYl/+BCV7F+W+jC/KDfwIwNzz29ILZHaA/C\n\t HZ5KEAOYmSea9bjuLxdcD6qsHryQtfiMSRnZW4RGtftLFRVvSXoTxjmWCpIqM00eXN\n\t prkYb78V/oaGACAGNylcOckDGDBsVR8VBuRQ3yPD2nqO++JbVa9lR0XtwV//dlwZap\n\t HwEm989HL8MTZdSEG0sOgYUO4VgUrf3T+emm9Efr8j2hn9lGoPYEm1PP2ykvChmDKo\n\t 04nJU4mKd3V6C8Zgg05BljN42NfWYNuvT2p4E0YZiPa8BeMN47WCr696udq7NFuadi\n\t gDZw9G9IBljag==", "From": "=?utf-8?q?Krzysztof_Wilczy=C5=84ski?= <kwilczynski@kernel.org>", "To": "Bjorn Helgaas <bhelgaas@google.com>", "Cc": "Bjorn Helgaas <helgaas@kernel.org>,\n Manivannan Sadhasivam <mani@kernel.org>,\n Lorenzo Pieralisi <lpieralisi@kernel.org>,\n Magnus Lindholm <linmag7@gmail.com>, Matt Turner <mattst88@gmail.com>,\n Richard Henderson <richard.henderson@linaro.org>,\n Christophe Leroy <chleroy@kernel.org>,\n Madhavan Srinivasan <maddy@linux.ibm.com>,\n Michael Ellerman <mpe@ellerman.id.au>, Nicholas Piggin <npiggin@gmail.com>,\n Dexuan Cui <decui@microsoft.com>,\n =?utf-8?q?Krzysztof_Ha=C5=82asa?= <khalasa@piap.pl>,\n Lukas Wunner <lukas@wunner.de>, \"Oliver O'Halloran\" <oohall@gmail.com>,\n Saurabh Singh Sengar <ssengar@microsoft.com>,\n Shuan He <heshuan@bytedance.com>, Srivatsa Bhat <srivatsabhat@microsoft.com>,\n\t=?utf-8?q?Ilpo_J=C3=A4rvinen?= <ilpo.jarvinen@linux.intel.com>,\n linux-pci@vger.kernel.org, linux-alpha@vger.kernel.org,\n linuxppc-dev@lists.ozlabs.org", "Subject": "[PATCH v6 15/24] alpha/PCI: Remove WARN from __pci_mmap_fits()", "Date": "Wed, 22 Apr 2026 16:13:58 +0000", "Message-ID": "<20260422161407.118748-16-kwilczynski@kernel.org>", "X-Mailer": "git-send-email 2.54.0", "In-Reply-To": "<20260422161407.118748-1-kwilczynski@kernel.org>", "References": "<20260422161407.118748-1-kwilczynski@kernel.org>", "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-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit" }, "content": "Remove the WARN() that fires when userspace attempts to mmap beyond\nthe BAR bounds. The check still returns 0 to reject the mapping,\nbut the warning is excessive for normal operation.\n\nA similar warning was removed from the PCI core in the commit\n3b519e4ea618 (\"PCI: fix size checks for mmap() on /proc/bus/pci files\").\n\nTested-by: Magnus Lindholm <linmag7@gmail.com>\nReviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>\nAcked-by: Magnus Lindholm <linmag7@gmail.com>\nSigned-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>\n---\n arch/alpha/kernel/pci-sysfs.c | 8 +-------\n 1 file changed, 1 insertion(+), 7 deletions(-)", "diff": "diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c\nindex 8802f955256e..f2ee737c588c 100644\n--- a/arch/alpha/kernel/pci-sysfs.c\n+++ b/arch/alpha/kernel/pci-sysfs.c\n@@ -48,13 +48,7 @@ static int __pci_mmap_fits(struct pci_dev *pdev, int num,\n \tstart = vma->vm_pgoff;\n \tsize = ((len - 1) >> (PAGE_SHIFT - shift)) + 1;\n \n-\tif (start < size && size - start >= nr)\n-\t\treturn 1;\n-\tWARN(1, \"process \\\"%s\\\" tried to map%s 0x%08lx-0x%08lx on %s BAR %d \"\n-\t\t\"(size 0x%08lx)\\n\",\n-\t\tcurrent->comm, sparse ? \" sparse\" : \"\", start, start + nr,\n-\t\tpci_name(pdev), num, size);\n-\treturn 0;\n+\treturn start < size && size - start >= nr;\n }\n \n /**\n", "prefixes": [ "v6", "15/24" ] }