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GET /api/patches/2216849/?format=api
{ "id": 2216849, "url": "http://patchwork.ozlabs.org/api/patches/2216849/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260327-gpio-kill-dev-sync-probe-v1-3-efac254f1a1d@oss.qualcomm.com/", "project": { "id": 42, "url": "http://patchwork.ozlabs.org/api/projects/42/?format=api", "name": "Linux GPIO development", "link_name": "linux-gpio", "list_id": "linux-gpio.vger.kernel.org", "list_email": "linux-gpio@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260327-gpio-kill-dev-sync-probe-v1-3-efac254f1a1d@oss.qualcomm.com>", "list_archive_url": null, "date": "2026-03-27T10:31:13", "name": "[3/4] gpio: virtuser: stop using dev-sync-probe", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "8d62af405e875ebef267a515f09f95ab9f6a7034", "submitter": { "id": 92196, "url": "http://patchwork.ozlabs.org/api/people/92196/?format=api", "name": "Bartosz Golaszewski", "email": "bartosz.golaszewski@oss.qualcomm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-gpio/patch/20260327-gpio-kill-dev-sync-probe-v1-3-efac254f1a1d@oss.qualcomm.com/mbox/", "series": [ { "id": 497743, "url": "http://patchwork.ozlabs.org/api/series/497743/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-gpio/list/?series=497743", "date": "2026-03-27T10:31:11", "name": "gpio: kill dev-sync-probe", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/497743/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2216849/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2216849/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linux-gpio+bounces-34246-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-gpio@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=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256\n header.s=qcppdkim1 header.b=pYDhOn8G;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com\n header.a=rsa-sha256 header.s=google header.b=COn68SCa;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c15:e001:75::12fc:5321; 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charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "\n <20260327-gpio-kill-dev-sync-probe-v1-3-efac254f1a1d@oss.qualcomm.com>", "References": "\n <20260327-gpio-kill-dev-sync-probe-v1-0-efac254f1a1d@oss.qualcomm.com>", "In-Reply-To": "\n <20260327-gpio-kill-dev-sync-probe-v1-0-efac254f1a1d@oss.qualcomm.com>", "To": "Linus Walleij <linusw@kernel.org>, Bartosz Golaszewski <brgl@kernel.org>,\n Geert Uytterhoeven <geert+renesas@glider.be>,\n Koichiro Den <koichiro.den@canonical.com>", "Cc": "linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,\n Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>", "X-Mailer": "b4 0.14.2", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=3646;\n i=bartosz.golaszewski@oss.qualcomm.com; h=from:subject:message-id;\n bh=q/vXhHDoFJqrdpA76UB07ULdvhJqcsq8Sba4mXCbT/w=;\n b=owEBbQKS/ZANAwAKAQWdLsv/NoTDAcsmYgBpxlx8ngUkGTup2/Q6rOFiB8rh7VNTI/rHOyn5Z\n ygK8SZ8qi6JAjMEAAEKAB0WIQSR5RMt5bVGHXuiZfwFnS7L/zaEwwUCacZcfAAKCRAFnS7L/zaE\n wzT4D/4vtUnZRLGALIT9cgohlC+n+TmdnZZ95emyzO3t+Vdm54HMUu4Mj553eFmFauAJ1PnrETX\n YPFPEnQNuQo3F9I54S48dP++uXRPmd35Ug2S1P9bZOz4B3QheCo21EnlSVIjPZjQjRtcctDOlqh\n fhe9y8qLaK4E9Ez2iekLGEhURDzTErhfShzAD49NRPcpPbOtYMrzGBaaLmV+KrnAFYSPIRAWmqx\n 8KkNfYI1lMAeEjVc5tmfJJF5N3ouz0NVeNnYL1SxTVPO1GcJS4Gy51Hi73T/KTIjLc6D0ClNUrV\n soc31xfGiULvnISjRhSH2jduwutJBfmVdGP/LsOZ2FEDKpMl1kC17/k1oZseummCxGz9indWEw3\n th2hy8dBOPyko01U63hX1HFntoViGNORAFIEHo86BzT5l4fW0ig0c8Zkvd4Yh6zDdgJ1JdKiZxr\n uOeoq7gqMXDi4uW1MO6qq/W0L/wLmaTIsnUyNohE57i2Z6/D3HhZQKVy8Ww98BgOkVrbMV9M7GM\n hswxWGwnIq3EVVsTVnOfbjTejySYuVCgOlG5QBgsB6fUR0c4DOXTPLaFGUzCKvAcu5kwSU+c0Po\n QcUkDblbdKuHOqT94NNegxod7LCqgR/a/5Mb63p7EaV7BHyPvITW/0JzWBbkO8Y6ufLHCf7MbkG\n hUqfYaSf9ahbtDA==", "X-Developer-Key": "i=bartosz.golaszewski@oss.qualcomm.com; a=openpgp;\n fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772", "X-Proofpoint-Spam-Details-Enc": "AW1haW4tMjYwMzI3MDA3NiBTYWx0ZWRfX3PNPCN3Js99v\n +R6gBUcL7sbc3NHx5RGxtRGLA4vlt9N+gAnM63PPSkvIkKNxFENpjPHyvdLQjEVUVlg/QSsoC4V\n v0dC3S8+8EpZ7sPH7xxVEj7lzxJwCeNtJdCEUEz9CMzC8VYItV/OAnsHm4lmt+3sif5ZbPpneuT\n pChAXyYam+D39koVsj/pXdHuQk1Lb0AvY80fToH0oUUt+JOPvZe4waU8CQjX2HUfMW7OhK7lyQZ\n Oe536QiwR5qwjsq7cjiDQap73EOCFBLtYF+T0oOs7OiDuxh+whvS6iq31DTxeMkJjEbBQ/HpVl8\n 9W5IRweHwcdXxx7Mk+8BrAV39p0X24oWB9iHWIpl0tWu4tOZ2pnbYHGND4dWlrLMtwhakBM0gPu\n C6kz/jxW4v6AFA3Ua1R0lr6KhfhA4Lgf7RUoBKDdwZmeKy4KkG+IMaS5A75+1xtGnZxAhkkcJJ6\n ummR8t1tV/4nsDT0fRQ==", "X-Proofpoint-GUID": "FCfzlyV3taBf-3qDaIgJvNatsEE_zPG-", "X-Authority-Analysis": "v=2.4 cv=S4bUAYsP c=1 sm=1 tr=0 ts=69c65c88 cx=c_pps\n a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10\n a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22\n a=u7WPNUs3qKkmUXheDGA7:22 a=DJpcGTmdVt4CTyJn9g5Z:22 a=EUspDBNiAAAA:8\n a=eBvw1o6kvFRJjbXN8kYA:9 a=QEXdDO2ut3YA:10 a=PEH46H7Ffwr30OY-TuGO:22", "X-Proofpoint-ORIG-GUID": "FCfzlyV3taBf-3qDaIgJvNatsEE_zPG-", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-03-26_04,2026-03-26_01,2025-10-01_01", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n priorityscore=1501 malwarescore=0 lowpriorityscore=0 bulkscore=0 phishscore=0\n spamscore=0 impostorscore=0 clxscore=1015 adultscore=0 suspectscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2603270076" }, "content": "dev-err-probe is an overengineered solution to a simple problem. Use a\ncombination of wait_for_probe() and device_is_bound() to synchronously\nwait for the platform device to probe.\n\nSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>\n---\n drivers/gpio/Kconfig | 1 -\n drivers/gpio/gpio-virtuser.c | 30 ++++++++++++++++++++----------\n 2 files changed, 20 insertions(+), 11 deletions(-)", "diff": "diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig\nindex 09db777938f3723e5dbd895dd1b30d39a21a2da1..56a7ddaa95eac07ee4f7b755335595805a316319 100644\n--- a/drivers/gpio/Kconfig\n+++ b/drivers/gpio/Kconfig\n@@ -2072,7 +2072,6 @@ config GPIO_VIRTUSER\n \tselect DEBUG_FS\n \tselect CONFIGFS_FS\n \tselect IRQ_WORK\n-\tselect DEV_SYNC_PROBE\n \thelp\n \t Say Y here to enable the configurable, configfs-based virtual GPIO\n \t consumer testing driver.\ndiff --git a/drivers/gpio/gpio-virtuser.c b/drivers/gpio/gpio-virtuser.c\nindex 955b5efc283ef565f8c1cfcaccd6d653f2f78f19..fe0eac920ced323926b2bc83ca0a2eb5f85c2154 100644\n--- a/drivers/gpio/gpio-virtuser.c\n+++ b/drivers/gpio/gpio-virtuser.c\n@@ -36,8 +36,6 @@\n #include <linux/string_helpers.h>\n #include <linux/types.h>\n \n-#include \"dev-sync-probe.h\"\n-\n #define GPIO_VIRTUSER_NAME_BUF_LEN 32\n \n static DEFINE_IDA(gpio_virtuser_ida);\n@@ -978,7 +976,7 @@ static struct platform_driver gpio_virtuser_driver = {\n };\n \n struct gpio_virtuser_device {\n-\tstruct dev_sync_probe_data probe_data;\n+\tstruct platform_device *pdev;\n \tstruct config_group group;\n \n \tint id;\n@@ -1002,7 +1000,7 @@ gpio_virtuser_device_is_live(struct gpio_virtuser_device *dev)\n {\n \tlockdep_assert_held(&dev->lock);\n \n-\treturn !!dev->probe_data.pdev;\n+\treturn !!dev->pdev;\n }\n \n struct gpio_virtuser_lookup {\n@@ -1342,7 +1340,7 @@ gpio_virtuser_device_config_dev_name_show(struct config_item *item,\n \n \tguard(mutex)(&dev->lock);\n \n-\tpdev = dev->probe_data.pdev;\n+\tpdev = dev->pdev;\n \tif (pdev)\n \t\treturn sprintf(page, \"%s\\n\", dev_name(&pdev->dev));\n \n@@ -1450,6 +1448,7 @@ static int\n gpio_virtuser_device_activate(struct gpio_virtuser_device *dev)\n {\n \tstruct platform_device_info pdevinfo;\n+\tstruct platform_device *pdev;\n \tstruct fwnode_handle *swnode;\n \tint ret;\n \n@@ -1471,12 +1470,23 @@ gpio_virtuser_device_activate(struct gpio_virtuser_device *dev)\n \tif (ret)\n \t\tgoto err_remove_swnode;\n \n-\tret = dev_sync_probe_register(&dev->probe_data, &pdevinfo);\n-\tif (ret)\n+\tpdev = platform_device_register_full(&pdevinfo);\n+\tif (IS_ERR(pdev)) {\n+\t\tret = PTR_ERR(pdev);\n \t\tgoto err_remove_lookup_table;\n+\t}\n+\n+\twait_for_device_probe();\n+\tif (!device_is_bound(&pdev->dev)) {\n+\t\tret = -ENXIO;\n+\t\tgoto err_unregister_pdev;\n+\t}\n \n+\tdev->pdev = pdev;\n \treturn 0;\n \n+err_unregister_pdev:\n+\tplatform_device_unregister(pdev);\n err_remove_lookup_table:\n \tgpio_virtuser_remove_lookup_table(dev);\n err_remove_swnode:\n@@ -1492,8 +1502,9 @@ gpio_virtuser_device_deactivate(struct gpio_virtuser_device *dev)\n \n \tlockdep_assert_held(&dev->lock);\n \n-\tswnode = dev_fwnode(&dev->probe_data.pdev->dev);\n-\tdev_sync_probe_unregister(&dev->probe_data);\n+\tswnode = dev_fwnode(&dev->pdev->dev);\n+\tplatform_device_unregister(dev->pdev);\n+\tdev->pdev = NULL;\n \tgpio_virtuser_remove_lookup_table(dev);\n \tfwnode_remove_software_node(swnode);\n }\n@@ -1723,7 +1734,6 @@ gpio_virtuser_config_make_device_group(struct config_group *group,\n \t\t\t\t &gpio_virtuser_device_config_group_type);\n \tmutex_init(&dev->lock);\n \tINIT_LIST_HEAD(&dev->lookup_list);\n-\tdev_sync_probe_init(&dev->probe_data);\n \n \treturn &no_free_ptr(dev)->group;\n }\n", "prefixes": [ "3/4" ] }