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As pci_uevent_ers() however does not handle PCI_ERS_RESULT_NEED_RESET this results in a missing uevent for the beginning of recovery if drivers request a reset. Fix this by treating PCI_ERS_RESULT_NEED_RESET as beginning recovery. Cc: stable@vger.kernel.org Fixes: 7b42d97e99d3 ("PCI/ERR: Always report current recovery status for ud= ev") Signed-off-by: Niklas Schnelle --- drivers/pci/pci-driver.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 67db34fd10ee7101baeeaae1bb9bec3b13e2fdeb..94ba6938b7c6271b557cc7f17ff= b89631d83827e 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -1592,6 +1592,7 @@ void pci_uevent_ers(struct pci_dev *pdev, enum pci_er= s_result err_type) switch (err_type) { case PCI_ERS_RESULT_NONE: case PCI_ERS_RESULT_CAN_RECOVER: + case PCI_ERS_RESULT_NEED_RESET: envp[idx++] =3D "ERROR_EVENT=3DBEGIN_RECOVERY"; envp[idx++] =3D "DEVICE_ONLINE=3D0"; break; --=20 2.48.1 From nobody Wed Oct 8 23:44:12 2025 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (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 3CFB822E406; 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Signed-off-by: Niklas Schnelle --- 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(-) diff --git a/arch/s390/pci/pci_event.c b/arch/s390/pci/pci_event.c index 2fbee3887d13aa28e0621aa7b6d673f4517b5461..cdbe603ec2f59d95ff92210742d= 39d7c20f26186 100644 --- a/arch/s390/pci/pci_event.c +++ b/arch/s390/pci/pci_event.c @@ -91,6 +91,7 @@ static pci_ers_result_t zpci_event_notify_error_detected(= struct pci_dev *pdev, pci_ers_result_t ers_res =3D PCI_ERS_RESULT_DISCONNECT; =20 ers_res =3D 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_n= ame(pdev)); else if (ers_res =3D=3D PCI_ERS_RESULT_NEED_RESET) @@ -226,6 +227,7 @@ static pci_ers_result_t zpci_event_attempt_error_recove= ry(struct pci_dev *pdev) ers_res =3D zpci_event_do_reset(pdev, driver); =20 if (ers_res !=3D 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)); status_str =3D "failed (driver can't recover)"; @@ -235,6 +237,7 @@ static pci_ers_result_t zpci_event_attempt_error_recove= ry(struct pci_dev *pdev) 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: pci_dev_unlock(pdev); zpci_report_status(zdev, "recovery", status_str); diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 94ba6938b7c6271b557cc7f17ffb89631d83827e..2f3037050fd011108ef93e39d2d= 78a5c7e22fd05 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -1578,7 +1578,7 @@ static int pci_uevent(const struct device *dev, struc= t kobj_uevent_env *env) return 0; } =20 -#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 diff --git a/include/linux/pci.h b/include/linux/pci.h index 05e68f35f39238f8b9ce08df97b384d1c1e89bbe..bcc412a21d93a6dcc566f011258= ed39d80d896c2 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -2737,7 +2737,7 @@ static inline bool pci_is_thunderbolt_attached(struct= pci_dev *pdev) return false; } =20 -#if defined(CONFIG_PCIEPORTBUS) || defined(CONFIG_EEH) +#if defined(CONFIG_PCIEPORTBUS) || defined(CONFIG_EEH) || defined(CONFIG_S= 390) void pci_uevent_ers(struct pci_dev *pdev, enum pci_ers_result err_type); #endif =20 --=20 2.48.1