Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/patches/2224069/?format=api
{ "id": 2224069, "url": "http://patchwork.ozlabs.org/api/patches/2224069/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260416180107.777065-16-kwilczynski@kernel.org/", "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": "<20260416180107.777065-16-kwilczynski@kernel.org>", "list_archive_url": null, "date": "2026-04-16T18:00:59", "name": "[v5,15/23] 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/people/86709/?format=api", "name": "Krzysztof Wilczyński", "email": "kwilczynski@kernel.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20260416180107.777065-16-kwilczynski@kernel.org/mbox/", "series": [ { "id": 500193, "url": "http://patchwork.ozlabs.org/api/series/500193/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=500193", "date": "2026-04-16T18:00:44", "name": "PCI: Convert all dynamic sysfs attributes to static", "version": 5, "mbox": "http://patchwork.ozlabs.org/series/500193/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2224069/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2224069/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-pci+bounces-52639-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=OAOaoPkz;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.105.105.114; helo=tor.lore.kernel.org;\n envelope-from=linux-pci+bounces-52639-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=\"OAOaoPkz\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=10.30.226.201" ], "Received": [ "from tor.lore.kernel.org (tor.lore.kernel.org [172.105.105.114])\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 4fxQpN0Lhwz1yD3\n\tfor <incoming@patchwork.ozlabs.org>; Fri, 17 Apr 2026 04:02:36 +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 39BEE307D2F0\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 16 Apr 2026 18:02:08 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 52FAC33262A;\n\tThu, 16 Apr 2026 18:02:05 +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 2F65D1D5CC6;\n\tThu, 16 Apr 2026 18:02:04 +0000 (UTC)", "by smtp.kernel.org (Postfix) with ESMTPSA id A193DC2BCB7;\n\tThu, 16 Apr 2026 18:02:01 +0000 (UTC)" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1776362525; cv=none;\n b=UJkFJXWF7aGQWpqNx1MlnbGMMBVQL0byqLf4+2VjUHlwiv7gOanH8XMBEPmW5J2DdF5yFgod0wgaIvKqLqGVZIe8C061IgEwTkm1QaSGXcVoWwRWH8qYaqKUX+PQKnTuHLG6j0VGmHtcnuB9ypgY8uuzHM7uEEhItaI8KL3MX6E=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1776362525; c=relaxed/simple;\n\tbh=hgdLCn3GR7rdEsn4XPXwIRAUu3lfUvkyKZP9W2tZ9DM=;\n\th=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References:\n\t MIME-Version:Content-Type;\n b=kFBggKeipKW4nTsTugXo61qg5lbZZlGXe53uU5rOyQ7Lg6JZfa+XuAGLZW6iS02neW8gg/Uy+0nTBwfq0XO0JeR2miAmXHHIci85yb/gnHFP868eEqY4Ej+jTITqzQt7sv1GGhQY5MBAd7ttWnP0ZnecZ3u/mP9EnrMjNyi94Hg=", "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=OAOaoPkz; 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=1776362524;\n\tbh=hgdLCn3GR7rdEsn4XPXwIRAUu3lfUvkyKZP9W2tZ9DM=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=OAOaoPkzMh/4vHIGkCH4nNcdBBPEEUjk8XIc6w4Y1mZFUaGJrRCQnXJXFW+BikZM3\n\t ps/CyoBlKt/2yjF2ApdaiQJX/xS3Kac5yH2d5G/6X7WUcVaZ7uut46gYlRiFluS8IO\n\t UL4UTYJXBCinNmcwWi8NF2bqsT5JvgQ/8bIgRW7Z6Y6kZ/J+8iYqT3+vJ/zE1V5/1U\n\t iMfMXasZx/VtIz1iLVPA1LJ7UIB9MrXiuDe/6lKUqkny5uea2rHW8pmZH697Cl/LDY\n\t T0GKcD4FFwaLOR5wpGse0X2JFYeOFZpiPsuqKQsxtORvFpNUSZ6CGXKtjMjlBpdP8y\n\t vYq9Ow+fvQ+/w==", "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 v5 15/23] alpha/PCI: Remove WARN from __pci_mmap_fits()", "Date": "Thu, 16 Apr 2026 18:00:59 +0000", "Message-ID": "<20260416180107.777065-16-kwilczynski@kernel.org>", "X-Mailer": "git-send-email 2.53.0", "In-Reply-To": "<20260416180107.777065-1-kwilczynski@kernel.org>", "References": "<20260416180107.777065-1-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": [ "v5", "15/23" ] }