{"id":2224066,"url":"http://patchwork.ozlabs.org/api/patches/2224066/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260416180107.777065-9-kwilczynski@kernel.org/","project":{"id":2,"url":"http://patchwork.ozlabs.org/api/projects/2/?format=json","name":"Linux PPC development","link_name":"linuxppc-dev","list_id":"linuxppc-dev.lists.ozlabs.org","list_email":"linuxppc-dev@lists.ozlabs.org","web_url":"https://github.com/linuxppc/wiki/wiki","scm_url":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git","webscm_url":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/","list_archive_url":"https://lore.kernel.org/linuxppc-dev/","list_archive_url_format":"https://lore.kernel.org/linuxppc-dev/{}/","commit_url_format":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}"},"msgid":"<20260416180107.777065-9-kwilczynski@kernel.org>","list_archive_url":"https://lore.kernel.org/linuxppc-dev/20260416180107.777065-9-kwilczynski@kernel.org/","date":"2026-04-16T18:00:52","name":"[v5,08/23] PCI/sysfs: Warn about BAR resize failure in __resource_resize_store()","commit_ref":null,"pull_url":null,"state":"handled-elsewhere","archived":false,"hash":"59dc2111873ebb11231ed7590e5f6a1bc6db8075","submitter":{"id":86709,"url":"http://patchwork.ozlabs.org/api/people/86709/?format=json","name":"Krzysztof Wilczyński","email":"kwilczynski@kernel.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260416180107.777065-9-kwilczynski@kernel.org/mbox/","series":[{"id":500194,"url":"http://patchwork.ozlabs.org/api/series/500194/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=500194","date":"2026-04-16T18:00:44","name":"PCI: Convert all dynamic sysfs attributes to static","version":5,"mbox":"http://patchwork.ozlabs.org/series/500194/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2224066/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2224066/checks/","tags":{},"related":[],"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linuxppc-dev@lists.ozlabs.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=b042CshG;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=2404:9400:21b9:f100::1; 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a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1776362500;\n\tbh=ETL+W+tW2dvlxsZyN2YnEvNwnvTJRalLy+LfLN3MvZw=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=b042CshGS+igON2yWBtn6udjzMZFtQhv7UWmyvNYZaBt43mqSpPQ8xm4hGIS5RaUB\n\t 8aQ5bIz4Ot/Kq5PDQ66D8Oc7nEdUb+nPAKQ6JLS2WX0gUBEyz+mFZX05pxmmDiGXMM\n\t HZpK7Cm4oVD4fj5FuOV8Ph2JSBbw4j+/ehFkJwqUoK4Eq7oqT3hvgl11OmcwnsVWFO\n\t SsPMl1G/jdAMnXz2v/EyslDXsRqy5fuq+Mdk9etXSSWRVVEN3pqwp5LTo7PN62XDGE\n\t 01XrANtGSZvZIJWw5G+S1xFUhCcTpBL6s3xrrn3dKw2zNHSsVWd8u9tNJlmAoN0FJR\n\t svcuY5lMOrdMA==","From":"=?utf-8?q?Krzysztof_Wilczy=C5=84ski?= ","To":"Bjorn Helgaas ","Cc":"Bjorn Helgaas ,\n Manivannan Sadhasivam ,\n Lorenzo Pieralisi ,\n Magnus Lindholm , Matt Turner ,\n Richard Henderson ,\n Christophe Leroy ,\n Madhavan Srinivasan ,\n Michael Ellerman , Nicholas Piggin ,\n Dexuan Cui ,\n =?utf-8?q?Krzysztof_Ha=C5=82asa?= ,\n Lukas Wunner , \"Oliver O'Halloran\" ,\n Saurabh Singh Sengar ,\n Shuan He , Srivatsa Bhat ,\n\t=?utf-8?q?Ilpo_J=C3=A4rvinen?= ,\n linux-pci@vger.kernel.org, linux-alpha@vger.kernel.org,\n linuxppc-dev@lists.ozlabs.org","Subject":"[PATCH v5 08/23] PCI/sysfs: Warn about BAR resize failure in\n __resource_resize_store()","Date":"Thu, 16 Apr 2026 18:00:52 +0000","Message-ID":"<20260416180107.777065-9-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>","X-Mailing-List":"linuxppc-dev@lists.ozlabs.org","List-Id":"","List-Help":"","List-Owner":"","List-Post":"","List-Archive":",\n ","List-Subscribe":",\n ,\n ","List-Unsubscribe":"","Precedence":"list","MIME-Version":"1.0","Content-Type":"text/plain; charset=UTF-8","Content-Transfer-Encoding":"8bit","X-Spam-Status":"No, score=-0.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED,\n\tDKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS\n\tautolearn=disabled version=4.0.1 OzLabs 8","X-Spam-Checker-Version":"SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org"},"content":"Add a pci_warn() to __resource_resize_store(), so that BAR resize\nfailures are visible to the user, which can help troubleshoot any\npotential resource resize issues.\n\nWhile at it, rename the resource_resize_is_visible() to\nresource_resize_attr_is_visible() along with the corresponding\ngroup variable to align with the naming convention used by the\nresource attribute groups.\n\nAlso, change the order of pci_dev_groups[] such that the resize\ngroup is now located alongside the other resource groups.\n\nSigned-off-by: Krzysztof Wilczyński \n---\n drivers/pci/pci-sysfs.c | 11 +++++++----\n 1 file changed, 7 insertions(+), 4 deletions(-)","diff":"diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c\nindex 3508e29f6ad1..c0925bdc9ecd 100644\n--- a/drivers/pci/pci-sysfs.c\n+++ b/drivers/pci/pci-sysfs.c\n@@ -1703,6 +1703,9 @@ static ssize_t __resource_resize_store(struct device *dev, int n,\n \tsysfs_remove_groups(&pdev->dev.kobj, pci_dev_resource_attr_groups);\n \n \tret = pci_resize_resource(pdev, n, size, 0);\n+\tif (ret)\n+\t\tpci_warn(pdev, \"Failed to resize BAR %d: %pe\\n\",\n+\t\t\t n, ERR_PTR(ret));\n \n \tpci_assign_unassigned_bus_resources(bus);\n \n@@ -1750,7 +1753,7 @@ static struct attribute *resource_resize_attrs[] = {\n \tNULL,\n };\n \n-static umode_t resource_resize_is_visible(struct kobject *kobj,\n+static umode_t resource_resize_attr_is_visible(struct kobject *kobj,\n \t\t\t\t\t struct attribute *a, int n)\n {\n \tstruct pci_dev *pdev = to_pci_dev(kobj_to_dev(kobj));\n@@ -1758,9 +1761,9 @@ static umode_t resource_resize_is_visible(struct kobject *kobj,\n \treturn pci_rebar_get_current_size(pdev, n) < 0 ? 0 : a->mode;\n }\n \n-static const struct attribute_group pci_dev_resource_resize_group = {\n+static const struct attribute_group pci_dev_resource_resize_attr_group = {\n \t.attrs = resource_resize_attrs,\n-\t.is_visible = resource_resize_is_visible,\n+\t.is_visible = resource_resize_attr_is_visible,\n };\n \n int __must_check pci_create_sysfs_dev_files(struct pci_dev *pdev)\n@@ -1881,6 +1884,7 @@ const struct attribute_group *pci_dev_groups[] = {\n \t&pci_dev_resource_uc_attr_group,\n \t&pci_dev_resource_wc_attr_group,\n #endif\n+\t&pci_dev_resource_resize_attr_group,\n \t&pci_dev_config_attr_group,\n \t&pci_dev_rom_attr_group,\n \t&pci_dev_reset_attr_group,\n@@ -1892,7 +1896,6 @@ const struct attribute_group *pci_dev_groups[] = {\n #ifdef CONFIG_ACPI\n \t&pci_dev_acpi_attr_group,\n #endif\n-\t&pci_dev_resource_resize_group,\n \tARCH_PCI_DEV_GROUPS\n \tNULL,\n };\n","prefixes":["v5","08/23"]}