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GET /api/1.2/patches/2228536/?format=api
{ "id": 2228536, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2228536/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ide/patch/20260426190920.2051289-5-philpem@philpem.me.uk/", "project": { "id": 13, "url": "http://patchwork.ozlabs.org/api/1.2/projects/13/?format=api", "name": "Linux IDE development", "link_name": "linux-ide", "list_id": "linux-ide.vger.kernel.org", "list_email": "linux-ide@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260426190920.2051289-5-philpem@philpem.me.uk>", "list_archive_url": null, "date": "2026-04-26T19:09:17", "name": "[v3,4/7] scsi: add BLIST_NO_LUN_1F blacklist flag", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "71115797945aed39645ee4ea8362724e81171b53", "submitter": { "id": 93108, "url": "http://patchwork.ozlabs.org/api/1.2/people/93108/?format=api", "name": "Phil Pemberton", "email": "philpem@philpem.me.uk" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-ide/patch/20260426190920.2051289-5-philpem@philpem.me.uk/mbox/", "series": [ { "id": 501551, "url": "http://patchwork.ozlabs.org/api/1.2/series/501551/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-ide/list/?series=501551", "date": "2026-04-26T19:09:18", "name": "ata: libata-scsi: multi-LUN ATAPI device support", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/501551/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2228536/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2228536/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-ide+bounces-5537-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-ide@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=philpem.me.uk header.i=@philpem.me.uk\n header.a=rsa-sha256 header.s=mail header.b=a/kAFWmx;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.234.253.10; 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a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1777230580; cv=none;\n b=d9SlhErFQFWTWs0GETQj/5xPr88yhBp/sQuzN4/BrMEUqgLdV4ozGQriThWHFIP77fAC0Ye8KX66kAcTVu9XMapWMtcvBHF1IRzWHkeFX58nvtNCHZskQj75OQUrrdMbNdMmnoxVvNPN6Iyg/aeWJAxmSKpE7NPvH7xGEwgyN2M=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1777230580; c=relaxed/simple;\n\tbh=f+CG9Amv2WmTE/Mh+QJe3KaJuRDqAPb8S1O+7kMivFU=;\n\th=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References:\n\t MIME-Version;\n b=YbRn0/Eq4hvEowZC6YK5EWJUrFiv5Lwhajb2RSaV+EJESkeaPRoQuMCsw0zVnrx0SGDLOfNAxKdEqtuKF+Awh6ZUJdmm477N6JhvCvueh1LWbWcRF1nDz+JxFccxR62Vt2kGF8n7OLlRuPsJKZICuEtfh5xECLEuY9kMAmUvFj4=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=reject dis=none) header.from=philpem.me.uk;\n spf=pass smtp.mailfrom=philpem.me.uk;\n dkim=pass (1024-bit key) header.d=philpem.me.uk header.i=@philpem.me.uk\n header.b=a/kAFWmx; arc=none smtp.client-ip=178.62.38.78", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple; d=philpem.me.uk;\n\ts=mail; t=1777230569;\n\tbh=f+CG9Amv2WmTE/Mh+QJe3KaJuRDqAPb8S1O+7kMivFU=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=a/kAFWmxAI3Z5zTkBrwGhzr7Q9QWP/XGAbI2tiv4ahh3E2bY0v2nx56DuN4oS8Ar1\n\t 3iF08x9g6ZbsFRWP9UU3TXHjEQqZqjzLTAegXEf3IVkW9PScMTnjcgEgO04h2S25Ol\n\t LDIg5GANxLDoDm0edCeTjqNmPVXZn65AFysw7Mlw=", "From": "Phil Pemberton <philpem@philpem.me.uk>", "To": "linux-ide@vger.kernel.org,\n\tlinux-scsi@vger.kernel.org", "Cc": "linux-kernel@vger.kernel.org,\n\tDamien Le Moal <dlemoal@kernel.org>,\n\tNiklas Cassel <cassel@kernel.org>,\n\t\"James E . J . Bottomley\" <James.Bottomley@HansenPartnership.com>,\n\t\"Martin K . Petersen\" <martin.petersen@oracle.com>,\n\tHannes Reinecke <hare@suse.de>,\n\tPhil Pemberton <philpem@philpem.me.uk>", "Subject": "[PATCH v3 4/7] scsi: add BLIST_NO_LUN_1F blacklist flag", "Date": "Sun, 26 Apr 2026 20:09:17 +0100", "Message-ID": "<20260426190920.2051289-5-philpem@philpem.me.uk>", "X-Mailer": "git-send-email 2.43.0", "In-Reply-To": "<20260426190920.2051289-1-philpem@philpem.me.uk>", "References": "<20260426190920.2051289-1-philpem@philpem.me.uk>", "Precedence": "bulk", "X-Mailing-List": "linux-ide@vger.kernel.org", "List-Id": "<linux-ide.vger.kernel.org>", "List-Subscribe": "<mailto:linux-ide+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-ide+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit" }, "content": "Some multi-LUN devices respond to INQUIRY on unpopulated LUNs with\nPQ=0 / PDT=0x1f instead of the standard PQ=3. The SCSI scan layer\nnormally adds such devices (PQ=0 means \"connected\"), producing\nspurious \"No Device\" entries.\n\nThe scsi_target field pdt_1f_for_no_lun already exists to suppress\nthis, but was previously only set by the USB UFI driver.\n\nAdd BLIST_NO_LUN_1F so the flag can be set per-device from\nscsi_devinfo, and wire it up in scsi_add_lun() to set\nstarget->pdt_1f_for_no_lun from the blacklist flags. This runs\nduring LUN 0 processing, before the sequential LUN scan probes\nhigher LUNs.\n\nSigned-off-by: Phil Pemberton <philpem@philpem.me.uk>\n---\n drivers/scsi/scsi_scan.c | 3 +++\n include/scsi/scsi_devinfo.h | 6 +++---\n 2 files changed, 6 insertions(+), 3 deletions(-)", "diff": "diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c\nindex 7b11bc7de0e3..d3f0540d79a2 100644\n--- a/drivers/scsi/scsi_scan.c\n+++ b/drivers/scsi/scsi_scan.c\n@@ -1070,6 +1070,9 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result,\n \n \tsdev->sdev_bflags = *bflags;\n \n+\tif (*bflags & BLIST_NO_LUN_1F)\n+\t\tsdev->sdev_target->pdt_1f_for_no_lun = 1;\n+\n \tif (scsi_device_is_pseudo_dev(sdev))\n \t\treturn SCSI_SCAN_LUN_PRESENT;\n \ndiff --git a/include/scsi/scsi_devinfo.h b/include/scsi/scsi_devinfo.h\nindex 1d79a3b536ce..6957b0705510 100644\n--- a/include/scsi/scsi_devinfo.h\n+++ b/include/scsi/scsi_devinfo.h\n@@ -34,7 +34,8 @@\n #define BLIST_NOSTARTONADD\t((__force blist_flags_t)(1ULL << 12))\n /* do not ask for VPD page size first on some broken targets */\n #define BLIST_NO_VPD_SIZE\t((__force blist_flags_t)(1ULL << 13))\n-#define __BLIST_UNUSED_14\t((__force blist_flags_t)(1ULL << 14))\n+/* PDT 0x1f with PQ 0 means no LUN present (e.g. some ATAPI multi-LUN) */\n+#define BLIST_NO_LUN_1F\t\t((__force blist_flags_t)(1ULL << 14))\n #define __BLIST_UNUSED_15\t((__force blist_flags_t)(1ULL << 15))\n #define __BLIST_UNUSED_16\t((__force blist_flags_t)(1ULL << 16))\n /* try REPORT_LUNS even for SCSI-2 devs (if HBA supports more than 8 LUNs) */\n@@ -77,8 +78,7 @@\n #define __BLIST_HIGH_UNUSED (~(__BLIST_LAST_USED | \\\n \t\t\t (__force blist_flags_t) \\\n \t\t\t ((__force __u64)__BLIST_LAST_USED - 1ULL)))\n-#define __BLIST_UNUSED_MASK (__BLIST_UNUSED_14 | \\\n-\t\t\t __BLIST_UNUSED_15 | \\\n+#define __BLIST_UNUSED_MASK (__BLIST_UNUSED_15 | \\\n \t\t\t __BLIST_UNUSED_16 | \\\n \t\t\t __BLIST_UNUSED_24 | \\\n \t\t\t __BLIST_UNUSED_27 | \\\n", "prefixes": [ "v3", "4/7" ] }