From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1068222579E; Wed, 3 Dec 2025 16:24:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764779089; cv=none; b=Yl6gtUl44CwCWSCAKJNinAQ6YKJh3Z3V74rXB603vBmTBpGgMEBwZuYFiNOinG5xf0npo/t3nB4CA5/BBfRJmAHNLY18fmUKvx03yCOlvzDy15MHqzDdFokUarxM6AtJoV4B5GGNvnO9SJPwWUtmd1FGHkCjsl5f8cAcPXtGG14= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764779089; c=relaxed/simple; bh=F/chLMgYdHGulz5efL7LpLOHK/t/MxmjyG2ZWvsFngk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jJV+dEmQR2bnRM0tV6lfcPv6iRXVlC/DvjenDbI094jfe6KzOA7xjPmuXwMlMPdd651unDVkUy1PumCSqgSL8UPSambLMbMyQfvQOg/IeXgyzkgtwFGE2V5zIaTbt1m060Vxm9qWyxOuccPj01cl3d5fYAK9vKsTNli/FIGU9hg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=z7hMQh6I; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="z7hMQh6I" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 727A9C4CEF5; Wed, 3 Dec 2025 16:24:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1764779088; bh=F/chLMgYdHGulz5efL7LpLOHK/t/MxmjyG2ZWvsFngk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=z7hMQh6IKIFJXuVC/w6g5Rff6zbdvEwD3YVW16ZvlqBj7bV0XAZoiQAFzyiPDHzYS cPLlPCPTGgbxro9vwpNkE5nr6fO5TPvXjRhvahlAdn69LIl/6064MkMOyp6NfvuRSA QTMDDwv7bPn7tQpDjBzIaqlG4HQA8lXL5ZShj8PY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Niklas Schnelle , Bjorn Helgaas , Lukas Wunner , Sasha Levin Subject: [PATCH 6.1 152/568] s390/pci: Use pci_uevent_ers() in PCI recovery Date: Wed, 3 Dec 2025 16:22:34 +0100 Message-ID: <20251203152446.293861123@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251203152440.645416925@linuxfoundation.org> References: <20251203152440.645416925@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Niklas Schnelle [ Upstream commit dab32f2576a39d5f54f3dbbbc718d92fa5109ce9 ] Issue uevents on s390 during PCI recovery using pci_uevent_ers() as done by EEH and AER PCIe recovery routines. Signed-off-by: Niklas Schnelle Signed-off-by: Bjorn Helgaas Reviewed-by: Lukas Wunner Link: https://patch.msgid.link/20250807-add_err_uevents-v5-2-adf85b0620b0@linux.ibm.com Signed-off-by: Sasha Levin --- arch/s390/pci/pci_event.c | 3 +++ drivers/pci/pci-driver.c | 2 +- include/linux/pci.h | 2 +- 3 files changed, 5 insertions(+), 2 deletions(-) --- a/arch/s390/pci/pci_event.c +++ b/arch/s390/pci/pci_event.c @@ -83,6 +83,7 @@ static pci_ers_result_t zpci_event_notif pci_ers_result_t ers_res = PCI_ERS_RESULT_DISCONNECT; ers_res = driver->err_handler->error_detected(pdev, pdev->error_state); + pci_uevent_ers(pdev, ers_res); if (ers_result_indicates_abort(ers_res)) pr_info("%s: Automatic recovery failed after initial reporting\n", pci_name(pdev)); else if (ers_res == PCI_ERS_RESULT_NEED_RESET) @@ -212,6 +213,7 @@ static pci_ers_result_t zpci_event_attem ers_res = zpci_event_do_reset(pdev, driver); if (ers_res != PCI_ERS_RESULT_RECOVERED) { + pci_uevent_ers(pdev, PCI_ERS_RESULT_DISCONNECT); pr_err("%s: Automatic recovery failed; operator intervention is required\n", pci_name(pdev)); goto out_unlock; @@ -220,6 +222,7 @@ static pci_ers_result_t zpci_event_attem pr_info("%s: The device is ready to resume operations\n", pci_name(pdev)); if (driver->err_handler->resume) driver->err_handler->resume(pdev); + pci_uevent_ers(pdev, PCI_ERS_RESULT_RECOVERED); out_unlock: device_unlock(&pdev->dev); --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -1597,7 +1597,7 @@ static int pci_uevent(struct device *dev return 0; } -#if defined(CONFIG_PCIEAER) || defined(CONFIG_EEH) +#if defined(CONFIG_PCIEAER) || defined(CONFIG_EEH) || defined(CONFIG_S390) /** * pci_uevent_ers - emit a uevent during recovery path of PCI device * @pdev: PCI device undergoing error recovery --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -2561,7 +2561,7 @@ static inline bool pci_is_thunderbolt_at return false; } -#if defined(CONFIG_PCIEPORTBUS) || defined(CONFIG_EEH) +#if defined(CONFIG_PCIEPORTBUS) || defined(CONFIG_EEH) || defined(CONFIG_S390) void pci_uevent_ers(struct pci_dev *pdev, enum pci_ers_result err_type); #endif