Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/patches/2219633/?format=api
{ "id": 2219633, "url": "http://patchwork.ozlabs.org/api/patches/2219633/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-mtd/patch/20260403-winbond-v6-18-rc1-spi-nor-swp-v4-7-833dab5e7288@bootlin.com/", "project": { "id": 3, "url": "http://patchwork.ozlabs.org/api/projects/3/?format=api", "name": "Linux MTD development", "link_name": "linux-mtd", "list_id": "linux-mtd.lists.infradead.org", "list_email": "linux-mtd@lists.infradead.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260403-winbond-v6-18-rc1-spi-nor-swp-v4-7-833dab5e7288@bootlin.com>", "list_archive_url": null, "date": "2026-04-03T16:09:25", "name": "[v4,07/27] mtd: spi-nor: swp: Explain the MEMLOCK ioctl implementation behaviour", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "94835618f5b08887f8dbcd3f449a404c584abf20", "submitter": { "id": 73368, "url": "http://patchwork.ozlabs.org/api/people/73368/?format=api", "name": "Miquel Raynal", "email": "miquel.raynal@bootlin.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-mtd/patch/20260403-winbond-v6-18-rc1-spi-nor-swp-v4-7-833dab5e7288@bootlin.com/mbox/", "series": [ { "id": 498652, "url": "http://patchwork.ozlabs.org/api/series/498652/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-mtd/list/?series=498652", "date": "2026-04-03T16:09:18", "name": "mtd: spi-nor: Enhance software protection", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/498652/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2219633/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2219633/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n secure) header.d=lists.infradead.org header.i=@lists.infradead.org\n header.a=rsa-sha256 header.s=bombadil.20210309 header.b=10yEi8/E;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256\n header.s=desiato.20200630 header.b=qTz5oSSD;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=bootlin.com header.i=@bootlin.com header.a=rsa-sha256\n header.s=dkim header.b=lvA4n3WW;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=none (no SPF record) smtp.mailfrom=lists.infradead.org\n (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org;\n envelope-from=linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from bombadil.infradead.org (bombadil.infradead.org\n [IPv6:2607:7c80:54:3::133])\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 4fnNwb6b2Mz1xtJ\n\tfor <incoming@patchwork.ozlabs.org>; Sat, 04 Apr 2026 03:10:07 +1100 (AEDT)", "from localhost ([::1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux))\n\tid 1w8h5t-00000002Gyw-30Uy;\n\tFri, 03 Apr 2026 16:10:01 +0000", "from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05])\n\tby bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux))\n\tid 1w8h5q-00000002Gsy-07kV\n\tfor linux-mtd@bombadil.infradead.org;\n\tFri, 03 Apr 2026 16:09:58 +0000", "from smtpout-02.galae.net ([185.246.84.56])\n\tby desiato.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux))\n\tid 1w8h5m-00000004OKc-1g4k\n\tfor linux-mtd@lists.infradead.org;\n\tFri, 03 Apr 2026 16:09:56 +0000", "from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233])\n\tby smtpout-02.galae.net (Postfix) with ESMTPS id 47EC81A312B;\n\tFri, 3 Apr 2026 16:09:53 +0000 (UTC)", "from mail.galae.net (mail.galae.net [212.83.136.155])\n\tby smtpout-01.galae.net (Postfix) with ESMTPS id 1E72F603C1;\n\tFri, 3 Apr 2026 16:09:53 +0000 (UTC)", "from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon)\n with ESMTPSA id 52F0510450103;\n\tFri, 3 Apr 2026 18:09:50 +0200 (CEST)" ], "DKIM-Signature": [ "v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=lists.infradead.org; s=bombadil.20210309; h=Sender:\n\tContent-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post:\n\tList-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References:Message-Id\n\t:MIME-Version:Subject:Date: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=9w7E6Yn3V5sXB/iFvxH9OwvHzettYnUA1jjtaH/97us=; b=10yEi8/ESToier\n\thdVdEr2QottOXVTBAhvFHZMX8IhI/eTtu+YG2+G0kEDlbnJXQEkXFIx25rlhP/Wgq797WxSbV2Z3D\n\tQSWl9d0IQ5oaTyfWh+qVPf1Ef6sXjS5ScGQnstaj/qHzPVJAuxjIkNpwuv2cl9r9pOCvBWLU8YUz0\n\tzul51byv0CPKZr+EhDinnjED9D+OE+H5DRTgWZFFn5hWXiaKMMXTh7OlkiOwFvz/0I3ovnuqVJbgn\n\tfPTsHMGQJNMRxB2MdIOG0CEwhr8/hsMotLL7JNXDNzF0bOttyKHCzhyqHY/VvmIqdD0HPVGwVLGJ3\n\tx63L+jBbgZgRjFeLhBdw==;", "v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=infradead.org; s=desiato.20200630; h=Cc:To:In-Reply-To:References:\n\tMessage-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date:\n\tFrom:Sender:Reply-To:Content-ID:Content-Description;\n\tbh=tFedJhlwMXaI/keWu4o5kk0Lj8Dpliq7e9ukabUVktc=; b=qTz5oSSDumTCumDm99um27KAfm\n\tHcg6b5x3SM59Nh+WEv2D+Lpyo+bJ3mhINbEhe6ZOZizg4Tvk482vZBTsByPWkt6h6g/KHJlBTF0Te\n\tEqkvJrhLxKa8qxU6hyu8J9IOAPHehvgBQjW5WlnAm7lr4wQMmkFTkIIvs4/RDfZQsdtgLsNU4btTw\n\tHTYF6ykaf8RHhJvYS6ia5tVPRRyN/7NZjKFxPcgfoinM3YtfEEFhSTwtNWkG1ibK6hWSXPVMgHRZ9\n\tu00Q+kpINM4U7WrKU9PUEMetQ/AeQHN/15+Nn3ozBzYfFso1rW73gG3rSgGVuVx/W4Oh8d7d7iSBp\n\tqLbS9aNw==;", "v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim;\n\tt=1775232592; h=from:subject:date:message-id:to:cc:mime-version:content-type:\n\t content-transfer-encoding:in-reply-to:references;\n\tbh=tFedJhlwMXaI/keWu4o5kk0Lj8Dpliq7e9ukabUVktc=;\n\tb=lvA4n3WWkwT+4QMF+Rrao8+Z7oiN4v5mOxgXfzmPLYv4BJ+sMBFUM3JFq7QphWgVyL4+/X\n\t/sSihHBKuCalFojGjweW8+QBvVNLbWWYMLz03xX8J6fQYMznczIaHwhjoMGdJewqRqzuTp\n\t4GqzuTbaAePzTVkXhOrD47J/HEFnhpJY4fxDHMGQrCyhL9hvNroEHxA5A7sQxif0DnlzaX\n\tKDFtVOc+mfDJctN3JF29BIK6K5TBwraB3p+jt4fxI2IHuKgsciwtuK3YkYAowEFhKxP+sE\n\tCqU3/3LGmEdQMiEZvfgzOM4Ag1dqn29q2eGhZAATSgaWDCnsADlW5gC5R2cSaA==" ], "From": "Miquel Raynal <miquel.raynal@bootlin.com>", "Date": "Fri, 03 Apr 2026 18:09:25 +0200", "Subject": "[PATCH v4 07/27] mtd: spi-nor: swp: Explain the MEMLOCK ioctl\n implementation behaviour", "MIME-Version": "1.0", "Message-Id": "\n <20260403-winbond-v6-18-rc1-spi-nor-swp-v4-7-833dab5e7288@bootlin.com>", "References": "\n <20260403-winbond-v6-18-rc1-spi-nor-swp-v4-0-833dab5e7288@bootlin.com>", "In-Reply-To": "\n <20260403-winbond-v6-18-rc1-spi-nor-swp-v4-0-833dab5e7288@bootlin.com>", "To": "Pratyush Yadav <pratyush@kernel.org>, Michael Walle <mwalle@kernel.org>,\n Takahiro Kuwano <takahiro.kuwano@infineon.com>,\n Richard Weinberger <richard@nod.at>, Vignesh Raghavendra <vigneshr@ti.com>,\n Jonathan Corbet <corbet@lwn.net>", "Cc": "Sean Anderson <sean.anderson@linux.dev>,\n Thomas Petazzoni <thomas.petazzoni@bootlin.com>,\n Steam Lin <STLin2@winbond.com>, linux-mtd@lists.infradead.org,\n linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,\n Miquel Raynal <miquel.raynal@bootlin.com>", "X-Mailer": "b4 0.14.3", "X-Last-TLS-Session-Version": "TLSv1.3", "X-CRM114-Version": "20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ", "X-CRM114-CacheID": "sfid-20260403_170954_554331_FA024D79 ", "X-CRM114-Status": "UNSURE ( 8.57 )", "X-CRM114-Notice": "Please train this message.", "X-Spam-Score": "-0.2 (/)", "X-Spam-Report": "Spam detection software,\n running on the system \"desiato.infradead.org\",\n has NOT identified this incoming email as spam. The original\n message has been attached to this so you can view it or label\n similar future email. If you have any questions, see\n the administrator of that system for details.\n Content preview: Add comments about how these requests are actually handled\n in the SPI NOR core. Their behaviour was not entirely clear to me at\n first,\n and explaining them in plain English sounds the way to go. Reviewed-by:\n Michael\n Walle <mwalle@kernel.org> Signed-off-by: Miquel Raynal\n <miquel.raynal@bootlin.com>\n --- drivers/mtd/spi-nor/swp.c | 8 ++++++++ 1 file changed, 8 insertions(+) \n Content analysis details: (-0.2 points, 5.0 required)\n pts rule name description\n ---- ----------------------\n --------------------------------------------------\n 0.0 RCVD_IN_VALIDITY_SAFE_BLOCKED RBL: ADMINISTRATOR NOTICE: The query to\n Validity was blocked. See\n https://knowledge.validity.com/hc/en-us/articles/20961730681243\n for more information.\n [185.246.84.56 listed in sa-accredit.habeas.com]\n 0.0 RCVD_IN_VALIDITY_RPBL_BLOCKED RBL: ADMINISTRATOR NOTICE: The query to\n Validity was blocked. See\n https://knowledge.validity.com/hc/en-us/articles/20961730681243\n for more information.\n [185.246.84.56 listed in\n bl.score.senderscore.com]\n 0.0 RCVD_IN_VALIDITY_CERTIFIED_BLOCKED RBL: ADMINISTRATOR NOTICE: The\n query to Validity was blocked. See\n https://knowledge.validity.com/hc/en-us/articles/20961730681243\n for more information.\n [185.246.84.56 listed in\n sa-trusted.bondedsender.org]\n -0.0 SPF_PASS SPF: sender matches SPF record\n -0.0 SPF_HELO_PASS SPF: HELO matches SPF record\n -0.1 DKIM_VALID Message has at least one valid DKIM or DK\n signature\n 0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n not necessarily valid\n -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from\n author's\n domain\n -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from\n envelope-from domain", "X-BeenThere": "linux-mtd@lists.infradead.org", "X-Mailman-Version": "2.1.34", "Precedence": "list", "List-Id": "Linux MTD discussion mailing list <linux-mtd.lists.infradead.org>", "List-Unsubscribe": "<http://lists.infradead.org/mailman/options/linux-mtd>,\n <mailto:linux-mtd-request@lists.infradead.org?subject=unsubscribe>", "List-Archive": "<http://lists.infradead.org/pipermail/linux-mtd/>", "List-Post": "<mailto:linux-mtd@lists.infradead.org>", "List-Help": "<mailto:linux-mtd-request@lists.infradead.org?subject=help>", "List-Subscribe": "<http://lists.infradead.org/mailman/listinfo/linux-mtd>,\n <mailto:linux-mtd-request@lists.infradead.org?subject=subscribe>", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Sender": "\"linux-mtd\" <linux-mtd-bounces@lists.infradead.org>", "Errors-To": "linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org" }, "content": "Add comments about how these requests are actually handled in the SPI\nNOR core. Their behaviour was not entirely clear to me at first, and\nexplaining them in plain English sounds the way to go.\n\nReviewed-by: Michael Walle <mwalle@kernel.org>\nSigned-off-by: Miquel Raynal <miquel.raynal@bootlin.com>\n---\n drivers/mtd/spi-nor/swp.c | 8 ++++++++\n 1 file changed, 8 insertions(+)", "diff": "diff --git a/drivers/mtd/spi-nor/swp.c b/drivers/mtd/spi-nor/swp.c\nindex 1d50db1ef1a0..64a917543928 100644\n--- a/drivers/mtd/spi-nor/swp.c\n+++ b/drivers/mtd/spi-nor/swp.c\n@@ -346,6 +346,14 @@ static int spi_nor_sr_is_locked(struct spi_nor *nor, loff_t ofs, u64 len)\n \treturn spi_nor_is_locked_sr(nor, ofs, len, nor->bouncebuf[0]);\n }\n \n+/*\n+ * These ioctls behave according to the following rules:\n+ * ->lock(): Never locks more than what is requested, ie. may lock less\n+ * ->unlock(): Never unlocks more than what is requested, ie. may unlock less\n+ * -is_locked(): Checks if the region is *fully* locked, returns false otherwise.\n+ * This feeback may be misleading because users may get an \"unlocked\"\n+ * status even though a subpart of the region is effectively locked.\n+ */\n static const struct spi_nor_locking_ops spi_nor_sr_locking_ops = {\n \t.lock = spi_nor_sr_lock,\n \t.unlock = spi_nor_sr_unlock,\n", "prefixes": [ "v4", "07/27" ] }