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GET /api/patches/812762/?format=api
{ "id": 812762, "url": "http://patchwork.ozlabs.org/api/patches/812762/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-imx/patch/20170912104424.18495-2-peter.ujfalusi@ti.com/", "project": { "id": 19, "url": "http://patchwork.ozlabs.org/api/projects/19/?format=api", "name": "Linux IMX development", "link_name": "linux-imx", "list_id": "linux-imx-kernel.lists.patchwork.ozlabs.org", "list_email": "linux-imx-kernel@lists.patchwork.ozlabs.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20170912104424.18495-2-peter.ujfalusi@ti.com>", "list_archive_url": null, "date": "2017-09-12T10:44:20", "name": "[1/5] dmaengine: edma: Implement protection for invalid max_burst", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "ab639a7f64acbbd53b98cd8d5a98bfb8cfda34de", "submitter": { "id": 9142, "url": "http://patchwork.ozlabs.org/api/people/9142/?format=api", "name": "Peter Ujfalusi", "email": "peter.ujfalusi@ti.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-imx/patch/20170912104424.18495-2-peter.ujfalusi@ti.com/mbox/", "series": [ { "id": 2660, "url": "http://patchwork.ozlabs.org/api/series/2660/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-imx/list/?series=2660", "date": "2017-09-12T10:44:20", "name": "dmaengine: core/edma/omap-dma: maximum SG len reporting", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/2660/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/812762/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/812762/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org>", "X-Original-To": "incoming-imx@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming-imx@bilbo.ozlabs.org", "Authentication-Results": [ "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=lists.infradead.org\n\t(client-ip=65.50.211.133; helo=bombadil.infradead.org;\n\tenvelope-from=linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org;\n\treceiver=<UNKNOWN>)", "ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=lists.infradead.org\n\theader.i=@lists.infradead.org header.b=\"Ode+7S/A\"; \n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n\tunprotected) header.d=ti.com header.i=@ti.com header.b=\"D4EGEbzZ\"; \n\tdkim-atps=neutral" ], "Received": [ "from bombadil.infradead.org (bombadil.infradead.org\n\t[65.50.211.133])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xs1dp6Sgbz9s7g\n\tfor <incoming-imx@patchwork.ozlabs.org>;\n\tTue, 12 Sep 2017 20:45:02 +1000 (AEST)", "from localhost ([127.0.0.1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux))\n\tid 1drigd-0000OS-VX; Tue, 12 Sep 2017 10:44:59 +0000", "from lelnx194.ext.ti.com ([198.47.27.80])\n\tby bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux))\n\tid 1drigZ-0000Kz-5P for linux-arm-kernel@lists.infradead.org;\n\tTue, 12 Sep 2017 10:44:57 +0000", "from dflxv15.itg.ti.com ([128.247.5.124])\n\tby lelnx194.ext.ti.com (8.15.1/8.15.1) with ESMTP id v8CAiTQB016598; \n\tTue, 12 Sep 2017 05:44:29 -0500", "from DLEE104.ent.ti.com (dlee104.ent.ti.com [157.170.170.34])\n\tby dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id v8CAiT12032305;\n\tTue, 12 Sep 2017 05:44:29 -0500", "from DLEE113.ent.ti.com (157.170.170.24) by DLEE104.ent.ti.com\n\t(157.170.170.34) with Microsoft SMTP Server (version=TLS1_2,\n\tcipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256) id 15.1.845.34;\n\tTue, 12 Sep 2017 05:44:29 -0500", "from dlep32.itg.ti.com (157.170.170.100) by DLEE113.ent.ti.com\n\t(157.170.170.24) with Microsoft SMTP Server (version=TLS1_0,\n\tcipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.1.845.34 via Frontend\n\tTransport; Tue, 12 Sep 2017 05:44:29 -0500", "from feketebors.ti.com (ileax41-snat.itg.ti.com [10.172.224.153])\n\tby dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id v8CAiOu2007788; \n\tTue, 12 Sep 2017 05:44:27 -0500" ], "DKIM-Signature": [ "v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=lists.infradead.org; s=bombadil.20170209; h=Sender:\n\tContent-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post:\n\tList-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:\n\tMessage-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description:\n\tResent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:\n\tList-Owner; bh=tc4GNUBzlPoPWTjZ/FvJ0vrqb58xuNJIF/zjnllnRFI=;\n\tb=Ode+7S/ALmPS+B\n\tzfSn6Hwpv/avrwTn0x7ccHGdF9VgzlH35xJLpeuxv0yc0mlRllwYItBiPGYyETQTlfzUkjPyumE4X\n\t+JBLAXYqNaNOVXiivVFV+FDc9hC18nqMtnRjKze9OIp51htttANDZAe43Q0TBoFflE7WOTwoYR0NI\n\toIIovcmzA4IYd+bFBrJdiOWe24R4vREOVBtCvzinURMogCD12KYCStFR+efgBaWrAQrZrbsWgh9al\n\toKnTUiNFJKPi0GXbFaq14Z3LEmb16kNvMzwRkBTtywdZQzfk8kseFcNkMEgmllEm7jAtM+r+84nyY\n\t8OH/JOx8VclDT8BTK8eA==;", "v=1; a=rsa-sha256; c=relaxed/simple; d=ti.com;\n\ts=ti-com-17Q1; t=1505213069;\n\tbh=fbCHR3Ke4MLlWfJjPY5XWtqHcKkeqC0PbwvYGw5Jqx0=;\n\th=From:To:CC:Subject:Date:In-Reply-To:References;\n\tb=D4EGEbzZTYORFceZuYEe+JnMvbziFQwsYQmNZHB19Q3Q3JR4CFw8i4BiWW/F9R/1m\n\tf/AyBV1AD5NyXarmbGGBchTnbffDaamRGl8i1vzZpf70OZoNLtOTm1FC28qirUnsdk\n\tamfjSpEkkbwIX7O6BjqdU4TiM1GYb4J23e6nKcqA=" ], "From": "Peter Ujfalusi <peter.ujfalusi@ti.com>", "To": "<vinod.koul@intel.com>, <dan.j.williams@intel.com>", "Subject": "[PATCH 1/5] dmaengine: edma: Implement protection for invalid\n\tmax_burst", "Date": "Tue, 12 Sep 2017 13:44:20 +0300", "Message-ID": "<20170912104424.18495-2-peter.ujfalusi@ti.com>", "X-Mailer": "git-send-email 2.14.1", "In-Reply-To": "<20170912104424.18495-1-peter.ujfalusi@ti.com>", "References": "<20170912104424.18495-1-peter.ujfalusi@ti.com>", "MIME-Version": "1.0", "X-EXCLAIMER-MD-CONFIG": "e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180", "X-CRM114-Version": "20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ", "X-CRM114-CacheID": "sfid-20170912_034455_329493_8EF67208 ", "X-CRM114-Status": "UNSURE ( 7.71 )", "X-CRM114-Notice": "Please train this message.", "X-Spam-Score": "-2.0 (--)", "X-Spam-Report": "SpamAssassin version 3.4.1 on bombadil.infradead.org summary:\n\tContent analysis details: (-2.0 points)\n\tpts rule name description\n\t---- ----------------------\n\t--------------------------------------------------\n\t-0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/,\n\tno trust [198.47.27.80 listed in list.dnswl.org]\n\t-0.0 SPF_PASS SPF: sender matches SPF record\n\t-0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay\n\tdomain\n\t-1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n\t[score: 0.0000]\n\t-0.1 DKIM_VALID Message has at least one valid DKIM or DK signature\n\t0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n\tnot necessarily valid\n\t-0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from\n\tauthor's domain", "X-BeenThere": "linux-arm-kernel@lists.infradead.org", "X-Mailman-Version": "2.1.21", "Precedence": "list", "List-Unsubscribe": "<http://lists.infradead.org/mailman/options/linux-arm-kernel>,\n\t<mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe>", "List-Archive": "<http://lists.infradead.org/pipermail/linux-arm-kernel/>", "List-Post": "<mailto:linux-arm-kernel@lists.infradead.org>", "List-Help": "<mailto:linux-arm-kernel-request@lists.infradead.org?subject=help>", "List-Subscribe": "<http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>,\n\t<mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe>", "Cc": "dmaengine@vger.kernel.org, t-kristo@ti.com, linux-omap@vger.kernel.org, \n\tlinux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "base64", "Sender": "\"linux-arm-kernel\" <linux-arm-kernel-bounces@lists.infradead.org>", "Errors-To": "linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org", "List-Id": "linux-imx-kernel.lists.patchwork.ozlabs.org" }, "content": "Set the device's max_burst to 32767 (CIDX is 16bit signed value) so clients\ncan take this into consideration when setting up the trasnfer.\n\nDuring slave transfer preparation check if the requested maxburst is valid.\n\nSigned-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>\n---\n drivers/dma/edma.c | 5 +++++\n 1 file changed, 5 insertions(+)", "diff": "diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c\nindex 3879f80a4815..6970355abdc9 100644\n--- a/drivers/dma/edma.c\n+++ b/drivers/dma/edma.c\n@@ -891,6 +891,10 @@ static int edma_slave_config(struct dma_chan *chan,\n \t cfg->dst_addr_width == DMA_SLAVE_BUSWIDTH_8_BYTES)\n \t\treturn -EINVAL;\n \n+\tif (cfg->src_maxburst > chan->device->max_burst ||\n+\t cfg->dst_maxburst > chan->device->max_burst)\n+\t\treturn -EINVAL;\n+\n \tmemcpy(&echan->cfg, cfg, sizeof(echan->cfg));\n \n \treturn 0;\n@@ -1855,6 +1859,7 @@ static void edma_dma_init(struct edma_cc *ecc, bool legacy_mode)\n \ts_ddev->dst_addr_widths = EDMA_DMA_BUSWIDTHS;\n \ts_ddev->directions |= (BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV));\n \ts_ddev->residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;\n+\ts_ddev->max_burst = SZ_32K - 1; /* CIDX: 16bit signed */\n \n \ts_ddev->dev = ecc->dev;\n \tINIT_LIST_HEAD(&s_ddev->channels);\n", "prefixes": [ "1/5" ] }