* [PATCH] irqdomain/treewide: Keep firmware node unconditionally allocated [not found] <20200706154410.GA117493@bjorn-Precision-5520> @ 2020-07-09 9:53 ` Thomas Gleixner 2020-07-09 12:00 ` Marc Zyngier ` (2 more replies) 0 siblings, 3 replies; 4+ messages in thread From: Thomas Gleixner @ 2020-07-09 9:53 UTC (permalink / raw) To: Bjorn Helgaas, Marc Zyngier Cc: Andy Shevchenko, Jon Derrick, Lorenzo Pieralisi, linux-pci, Sushma Kalakota, LKML Quite some non OF/ACPI users of irqdomains allocate firmware nodes of type IRQCHIP_FWNODE_NAMED or IRQCHIP_FWNODE_NAMED_ID and free them right after creating the irqdomain. The only purpose of these FW nodes is to convey name information. When this was introduced the core code did not store the pointer to the node in the irqdomain. A recent change stored the firmware node pointer in irqdomain for other reasons and missed to notice that the usage sites which do the alloc_fwnode/create_domain/free_fwnode sequence are broken by this. Storing a dangling pointer is dangerous itself, but in case that the domain is destroyed later on this leads to a double free. Remove the freeing of the firmware node after creating the irqdomain from all affected call sites to cure this. Fixes: 711419e504eb ("irqdomain: Add the missing assignment of domain->fwnode for named fwnode") Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org --- arch/mips/pci/pci-xtalk-bridge.c | 5 +++-- arch/x86/kernel/apic/io_apic.c | 10 +++++----- arch/x86/kernel/apic/msi.c | 18 ++++++++++++------ arch/x86/kernel/apic/vector.c | 1 - arch/x86/platform/uv/uv_irq.c | 3 ++- drivers/iommu/amd/iommu.c | 5 +++-- drivers/iommu/hyperv-iommu.c | 5 ++++- drivers/iommu/intel/irq_remapping.c | 2 +- drivers/mfd/ioc3.c | 5 +++-- drivers/pci/controller/vmd.c | 5 +++-- 10 files changed, 36 insertions(+), 23 deletions(-) --- a/arch/mips/pci/pci-xtalk-bridge.c +++ b/arch/mips/pci/pci-xtalk-bridge.c @@ -627,9 +627,10 @@ static int bridge_probe(struct platform_ return -ENOMEM; domain = irq_domain_create_hierarchy(parent, 0, 8, fn, &bridge_domain_ops, NULL); - irq_domain_free_fwnode(fn); - if (!domain) + if (!domain) { + irq_domain_free_fwnode(fn); return -ENOMEM; + } pci_set_flags(PCI_PROBE_ONLY); --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -2316,12 +2316,12 @@ static int mp_irqdomain_create(int ioapi ip->irqdomain = irq_domain_create_linear(fn, hwirqs, cfg->ops, (void *)(long)ioapic); - /* Release fw handle if it was allocated above */ - if (!cfg->dev) - irq_domain_free_fwnode(fn); - - if (!ip->irqdomain) + if (!ip->irqdomain) { + /* Release fw handle if it was allocated above */ + if (!cfg->dev) + irq_domain_free_fwnode(fn); return -ENOMEM; + } ip->irqdomain->parent = parent; --- a/arch/x86/kernel/apic/msi.c +++ b/arch/x86/kernel/apic/msi.c @@ -263,12 +263,13 @@ void __init arch_init_msi_domain(struct msi_default_domain = pci_msi_create_irq_domain(fn, &pci_msi_domain_info, parent); - irq_domain_free_fwnode(fn); } - if (!msi_default_domain) + if (!msi_default_domain) { + irq_domain_free_fwnode(fn); pr_warn("failed to initialize irqdomain for MSI/MSI-x.\n"); - else + } else { msi_default_domain->flags |= IRQ_DOMAIN_MSI_NOMASK_QUIRK; + } } #ifdef CONFIG_IRQ_REMAP @@ -301,7 +302,8 @@ struct irq_domain *arch_create_remap_msi if (!fn) return NULL; d = pci_msi_create_irq_domain(fn, &pci_msi_ir_domain_info, parent); - irq_domain_free_fwnode(fn); + if (!d) + irq_domain_free_fwnode(fn); return d; } #endif @@ -364,7 +366,8 @@ static struct irq_domain *dmar_get_irq_d if (fn) { dmar_domain = msi_create_irq_domain(fn, &dmar_msi_domain_info, x86_vector_domain); - irq_domain_free_fwnode(fn); + if (!dmar_domain) + irq_domain_free_fwnode(fn); } out: mutex_unlock(&dmar_lock); @@ -489,7 +492,10 @@ struct irq_domain *hpet_create_irq_domai } d = msi_create_irq_domain(fn, domain_info, parent); - irq_domain_free_fwnode(fn); + if (!d) { + irq_domain_free_fwnode(fn); + kfree(domain_info); + } return d; } --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -709,7 +709,6 @@ int __init arch_early_irq_init(void) x86_vector_domain = irq_domain_create_tree(fn, &x86_vector_domain_ops, NULL); BUG_ON(x86_vector_domain == NULL); - irq_domain_free_fwnode(fn); irq_set_default_host(x86_vector_domain); arch_init_msi_domain(x86_vector_domain); --- a/arch/x86/platform/uv/uv_irq.c +++ b/arch/x86/platform/uv/uv_irq.c @@ -167,9 +167,10 @@ static struct irq_domain *uv_get_irq_dom goto out; uv_domain = irq_domain_create_tree(fn, &uv_domain_ops, NULL); - irq_domain_free_fwnode(fn); if (uv_domain) uv_domain->parent = x86_vector_domain; + else + irq_domain_free_fwnode(fn); out: mutex_unlock(&uv_lock); --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -3985,9 +3985,10 @@ int amd_iommu_create_irq_domain(struct a if (!fn) return -ENOMEM; iommu->ir_domain = irq_domain_create_tree(fn, &amd_ir_domain_ops, iommu); - irq_domain_free_fwnode(fn); - if (!iommu->ir_domain) + if (!iommu->ir_domain) { + irq_domain_free_fwnode(fn); return -ENOMEM; + } iommu->ir_domain->parent = arch_get_ir_parent_domain(); iommu->msi_domain = arch_create_remap_msi_irq_domain(iommu->ir_domain, --- a/drivers/iommu/hyperv-iommu.c +++ b/drivers/iommu/hyperv-iommu.c @@ -155,7 +155,10 @@ static int __init hyperv_prepare_irq_rem 0, IOAPIC_REMAPPING_ENTRY, fn, &hyperv_ir_domain_ops, NULL); - irq_domain_free_fwnode(fn); + if (!ioapic_ir_domain) { + irq_domain_free_fwnode(fn); + return -ENOMEM; + } /* * Hyper-V doesn't provide irq remapping function for --- a/drivers/iommu/intel/irq_remapping.c +++ b/drivers/iommu/intel/irq_remapping.c @@ -563,8 +563,8 @@ static int intel_setup_irq_remapping(str 0, INTR_REMAP_TABLE_ENTRIES, fn, &intel_ir_domain_ops, iommu); - irq_domain_free_fwnode(fn); if (!iommu->ir_domain) { + irq_domain_free_fwnode(fn); pr_err("IR%d: failed to allocate irqdomain\n", iommu->seq_id); goto out_free_bitmap; } --- a/drivers/mfd/ioc3.c +++ b/drivers/mfd/ioc3.c @@ -142,10 +142,11 @@ static int ioc3_irq_domain_setup(struct goto err; domain = irq_domain_create_linear(fn, 24, &ioc3_irq_domain_ops, ipd); - if (!domain) + if (!domain) { + irq_domain_free_fwnode(fn); goto err; + } - irq_domain_free_fwnode(fn); ipd->domain = domain; irq_set_chained_handler_and_data(irq, ioc3_irq_handler, domain); --- a/drivers/pci/controller/vmd.c +++ b/drivers/pci/controller/vmd.c @@ -546,9 +546,10 @@ static int vmd_enable_domain(struct vmd_ vmd->irq_domain = pci_msi_create_irq_domain(fn, &vmd_msi_domain_info, x86_vector_domain); - irq_domain_free_fwnode(fn); - if (!vmd->irq_domain) + if (!vmd->irq_domain) { + irq_domain_free_fwnode(fn); return -ENODEV; + } pci_add_resource(&resources, &vmd->resources[0]); pci_add_resource_offset(&resources, &vmd->resources[1], offset[0]); ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] irqdomain/treewide: Keep firmware node unconditionally allocated 2020-07-09 9:53 ` [PATCH] irqdomain/treewide: Keep firmware node unconditionally allocated Thomas Gleixner @ 2020-07-09 12:00 ` Marc Zyngier 2020-07-09 21:47 ` Bjorn Helgaas 2020-07-14 15:48 ` [tip: irq/urgent] " tip-bot2 for Thomas Gleixner 2 siblings, 0 replies; 4+ messages in thread From: Marc Zyngier @ 2020-07-09 12:00 UTC (permalink / raw) To: Thomas Gleixner Cc: Bjorn Helgaas, Andy Shevchenko, Jon Derrick, Lorenzo Pieralisi, linux-pci, Sushma Kalakota, LKML Hi Thomas, Catching up on email... On 2020-07-09 10:53, Thomas Gleixner wrote: > Quite some non OF/ACPI users of irqdomains allocate firmware nodes of > type > IRQCHIP_FWNODE_NAMED or IRQCHIP_FWNODE_NAMED_ID and free them right > after > creating the irqdomain. The only purpose of these FW nodes is to convey > name information. When this was introduced the core code did not store > the > pointer to the node in the irqdomain. A recent change stored the > firmware > node pointer in irqdomain for other reasons and missed to notice that > the > usage sites which do the alloc_fwnode/create_domain/free_fwnode > sequence > are broken by this. Storing a dangling pointer is dangerous itself, but > in > case that the domain is destroyed later on this leads to a double free. > > Remove the freeing of the firmware node after creating the irqdomain > from > all affected call sites to cure this. > > Fixes: 711419e504eb ("irqdomain: Add the missing assignment of > domain->fwnode for named fwnode") > Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> > Signed-off-by: Thomas Gleixner <tglx@linutronix.de> > Cc: stable@vger.kernel.org Urgh, that's pretty disastrous. My bad. Thanks a lot for having put this patch together. Acked-by: Marc Zyngier <maz@kernel.org> If you can take it directly into Linus' tree, that'd be greatly appreciated. Thanks again, M. -- Jazz is not dead. It just smells funny... ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] irqdomain/treewide: Keep firmware node unconditionally allocated 2020-07-09 9:53 ` [PATCH] irqdomain/treewide: Keep firmware node unconditionally allocated Thomas Gleixner 2020-07-09 12:00 ` Marc Zyngier @ 2020-07-09 21:47 ` Bjorn Helgaas 2020-07-14 15:48 ` [tip: irq/urgent] " tip-bot2 for Thomas Gleixner 2 siblings, 0 replies; 4+ messages in thread From: Bjorn Helgaas @ 2020-07-09 21:47 UTC (permalink / raw) To: Thomas Gleixner Cc: Marc Zyngier, Andy Shevchenko, Jon Derrick, Lorenzo Pieralisi, linux-pci, Sushma Kalakota, LKML On Thu, Jul 09, 2020 at 11:53:06AM +0200, Thomas Gleixner wrote: > Quite some non OF/ACPI users of irqdomains allocate firmware nodes of type > IRQCHIP_FWNODE_NAMED or IRQCHIP_FWNODE_NAMED_ID and free them right after > creating the irqdomain. The only purpose of these FW nodes is to convey > name information. When this was introduced the core code did not store the > pointer to the node in the irqdomain. A recent change stored the firmware > node pointer in irqdomain for other reasons and missed to notice that the > usage sites which do the alloc_fwnode/create_domain/free_fwnode sequence > are broken by this. Storing a dangling pointer is dangerous itself, but in > case that the domain is destroyed later on this leads to a double free. > > Remove the freeing of the firmware node after creating the irqdomain from > all affected call sites to cure this. > > Fixes: 711419e504eb ("irqdomain: Add the missing assignment of domain->fwnode for named fwnode") > Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> > Signed-off-by: Thomas Gleixner <tglx@linutronix.de> > Cc: stable@vger.kernel.org Acked-by: Bjorn Helgaas <bhelgaas@google.com> # drivers/pci/ ^ permalink raw reply [flat|nested] 4+ messages in thread
* [tip: irq/urgent] irqdomain/treewide: Keep firmware node unconditionally allocated 2020-07-09 9:53 ` [PATCH] irqdomain/treewide: Keep firmware node unconditionally allocated Thomas Gleixner 2020-07-09 12:00 ` Marc Zyngier 2020-07-09 21:47 ` Bjorn Helgaas @ 2020-07-14 15:48 ` tip-bot2 for Thomas Gleixner 2 siblings, 0 replies; 4+ messages in thread From: tip-bot2 for Thomas Gleixner @ 2020-07-14 15:48 UTC (permalink / raw) To: linux-tip-commits Cc: Andy Shevchenko, Thomas Gleixner, Bjorn Helgaas, Marc Zyngier, stable, x86, LKML The following commit has been merged into the irq/urgent branch of tip: Commit-ID: e3beca48a45b5e0e6e6a4e0124276b8248dcc9bb Gitweb: https://git.kernel.org/tip/e3beca48a45b5e0e6e6a4e0124276b8248dcc9bb Author: Thomas Gleixner <tglx@linutronix.de> AuthorDate: Thu, 09 Jul 2020 11:53:06 +02:00 Committer: Thomas Gleixner <tglx@linutronix.de> CommitterDate: Tue, 14 Jul 2020 17:44:42 +02:00 irqdomain/treewide: Keep firmware node unconditionally allocated Quite some non OF/ACPI users of irqdomains allocate firmware nodes of type IRQCHIP_FWNODE_NAMED or IRQCHIP_FWNODE_NAMED_ID and free them right after creating the irqdomain. The only purpose of these FW nodes is to convey name information. When this was introduced the core code did not store the pointer to the node in the irqdomain. A recent change stored the firmware node pointer in irqdomain for other reasons and missed to notice that the usage sites which do the alloc_fwnode/create_domain/free_fwnode sequence are broken by this. Storing a dangling pointer is dangerous itself, but in case that the domain is destroyed later on this leads to a double free. Remove the freeing of the firmware node after creating the irqdomain from all affected call sites to cure this. Fixes: 711419e504eb ("irqdomain: Add the missing assignment of domain->fwnode for named fwnode") Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Marc Zyngier <maz@kernel.org> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/873661qakd.fsf@nanos.tec.linutronix.de --- arch/mips/pci/pci-xtalk-bridge.c | 5 +++-- arch/x86/kernel/apic/io_apic.c | 10 +++++----- arch/x86/kernel/apic/msi.c | 18 ++++++++++++------ arch/x86/kernel/apic/vector.c | 1 - arch/x86/platform/uv/uv_irq.c | 3 ++- drivers/iommu/amd/iommu.c | 5 +++-- drivers/iommu/hyperv-iommu.c | 5 ++++- drivers/iommu/intel/irq_remapping.c | 2 +- drivers/mfd/ioc3.c | 5 +++-- drivers/pci/controller/vmd.c | 5 +++-- 10 files changed, 36 insertions(+), 23 deletions(-) diff --git a/arch/mips/pci/pci-xtalk-bridge.c b/arch/mips/pci/pci-xtalk-bridge.c index 3b2552f..5958217 100644 --- a/arch/mips/pci/pci-xtalk-bridge.c +++ b/arch/mips/pci/pci-xtalk-bridge.c @@ -627,9 +627,10 @@ static int bridge_probe(struct platform_device *pdev) return -ENOMEM; domain = irq_domain_create_hierarchy(parent, 0, 8, fn, &bridge_domain_ops, NULL); - irq_domain_free_fwnode(fn); - if (!domain) + if (!domain) { + irq_domain_free_fwnode(fn); return -ENOMEM; + } pci_set_flags(PCI_PROBE_ONLY); diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index ce61e3e..81ffcfb 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -2316,12 +2316,12 @@ static int mp_irqdomain_create(int ioapic) ip->irqdomain = irq_domain_create_linear(fn, hwirqs, cfg->ops, (void *)(long)ioapic); - /* Release fw handle if it was allocated above */ - if (!cfg->dev) - irq_domain_free_fwnode(fn); - - if (!ip->irqdomain) + if (!ip->irqdomain) { + /* Release fw handle if it was allocated above */ + if (!cfg->dev) + irq_domain_free_fwnode(fn); return -ENOMEM; + } ip->irqdomain->parent = parent; diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c index 5cbaca5..c2b2911 100644 --- a/arch/x86/kernel/apic/msi.c +++ b/arch/x86/kernel/apic/msi.c @@ -263,12 +263,13 @@ void __init arch_init_msi_domain(struct irq_domain *parent) msi_default_domain = pci_msi_create_irq_domain(fn, &pci_msi_domain_info, parent); - irq_domain_free_fwnode(fn); } - if (!msi_default_domain) + if (!msi_default_domain) { + irq_domain_free_fwnode(fn); pr_warn("failed to initialize irqdomain for MSI/MSI-x.\n"); - else + } else { msi_default_domain->flags |= IRQ_DOMAIN_MSI_NOMASK_QUIRK; + } } #ifdef CONFIG_IRQ_REMAP @@ -301,7 +302,8 @@ struct irq_domain *arch_create_remap_msi_irq_domain(struct irq_domain *parent, if (!fn) return NULL; d = pci_msi_create_irq_domain(fn, &pci_msi_ir_domain_info, parent); - irq_domain_free_fwnode(fn); + if (!d) + irq_domain_free_fwnode(fn); return d; } #endif @@ -364,7 +366,8 @@ static struct irq_domain *dmar_get_irq_domain(void) if (fn) { dmar_domain = msi_create_irq_domain(fn, &dmar_msi_domain_info, x86_vector_domain); - irq_domain_free_fwnode(fn); + if (!dmar_domain) + irq_domain_free_fwnode(fn); } out: mutex_unlock(&dmar_lock); @@ -489,7 +492,10 @@ struct irq_domain *hpet_create_irq_domain(int hpet_id) } d = msi_create_irq_domain(fn, domain_info, parent); - irq_domain_free_fwnode(fn); + if (!d) { + irq_domain_free_fwnode(fn); + kfree(domain_info); + } return d; } diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index c48be6e..cc8b16f 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -709,7 +709,6 @@ int __init arch_early_irq_init(void) x86_vector_domain = irq_domain_create_tree(fn, &x86_vector_domain_ops, NULL); BUG_ON(x86_vector_domain == NULL); - irq_domain_free_fwnode(fn); irq_set_default_host(x86_vector_domain); arch_init_msi_domain(x86_vector_domain); diff --git a/arch/x86/platform/uv/uv_irq.c b/arch/x86/platform/uv/uv_irq.c index fc13cbb..abb6075 100644 --- a/arch/x86/platform/uv/uv_irq.c +++ b/arch/x86/platform/uv/uv_irq.c @@ -167,9 +167,10 @@ static struct irq_domain *uv_get_irq_domain(void) goto out; uv_domain = irq_domain_create_tree(fn, &uv_domain_ops, NULL); - irq_domain_free_fwnode(fn); if (uv_domain) uv_domain->parent = x86_vector_domain; + else + irq_domain_free_fwnode(fn); out: mutex_unlock(&uv_lock); diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index 74cca17..2f22326 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -3985,9 +3985,10 @@ int amd_iommu_create_irq_domain(struct amd_iommu *iommu) if (!fn) return -ENOMEM; iommu->ir_domain = irq_domain_create_tree(fn, &amd_ir_domain_ops, iommu); - irq_domain_free_fwnode(fn); - if (!iommu->ir_domain) + if (!iommu->ir_domain) { + irq_domain_free_fwnode(fn); return -ENOMEM; + } iommu->ir_domain->parent = arch_get_ir_parent_domain(); iommu->msi_domain = arch_create_remap_msi_irq_domain(iommu->ir_domain, diff --git a/drivers/iommu/hyperv-iommu.c b/drivers/iommu/hyperv-iommu.c index 3c0c67a..8919c1c 100644 --- a/drivers/iommu/hyperv-iommu.c +++ b/drivers/iommu/hyperv-iommu.c @@ -155,7 +155,10 @@ static int __init hyperv_prepare_irq_remapping(void) 0, IOAPIC_REMAPPING_ENTRY, fn, &hyperv_ir_domain_ops, NULL); - irq_domain_free_fwnode(fn); + if (!ioapic_ir_domain) { + irq_domain_free_fwnode(fn); + return -ENOMEM; + } /* * Hyper-V doesn't provide irq remapping function for diff --git a/drivers/iommu/intel/irq_remapping.c b/drivers/iommu/intel/irq_remapping.c index 7f87698..9564d23 100644 --- a/drivers/iommu/intel/irq_remapping.c +++ b/drivers/iommu/intel/irq_remapping.c @@ -563,8 +563,8 @@ static int intel_setup_irq_remapping(struct intel_iommu *iommu) 0, INTR_REMAP_TABLE_ENTRIES, fn, &intel_ir_domain_ops, iommu); - irq_domain_free_fwnode(fn); if (!iommu->ir_domain) { + irq_domain_free_fwnode(fn); pr_err("IR%d: failed to allocate irqdomain\n", iommu->seq_id); goto out_free_bitmap; } diff --git a/drivers/mfd/ioc3.c b/drivers/mfd/ioc3.c index 02998d4..74cee7c 100644 --- a/drivers/mfd/ioc3.c +++ b/drivers/mfd/ioc3.c @@ -142,10 +142,11 @@ static int ioc3_irq_domain_setup(struct ioc3_priv_data *ipd, int irq) goto err; domain = irq_domain_create_linear(fn, 24, &ioc3_irq_domain_ops, ipd); - if (!domain) + if (!domain) { + irq_domain_free_fwnode(fn); goto err; + } - irq_domain_free_fwnode(fn); ipd->domain = domain; irq_set_chained_handler_and_data(irq, ioc3_irq_handler, domain); diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c index e386d4e..9a64cf9 100644 --- a/drivers/pci/controller/vmd.c +++ b/drivers/pci/controller/vmd.c @@ -546,9 +546,10 @@ static int vmd_enable_domain(struct vmd_dev *vmd, unsigned long features) vmd->irq_domain = pci_msi_create_irq_domain(fn, &vmd_msi_domain_info, x86_vector_domain); - irq_domain_free_fwnode(fn); - if (!vmd->irq_domain) + if (!vmd->irq_domain) { + irq_domain_free_fwnode(fn); return -ENODEV; + } pci_add_resource(&resources, &vmd->resources[0]); pci_add_resource_offset(&resources, &vmd->resources[1], offset[0]); ^ permalink raw reply related [flat|nested] 4+ messages in thread
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2020-07-09 9:53 ` [PATCH] irqdomain/treewide: Keep firmware node unconditionally allocated Thomas Gleixner
2020-07-09 12:00 ` Marc Zyngier
2020-07-09 21:47 ` Bjorn Helgaas
2020-07-14 15:48 ` [tip: irq/urgent] " tip-bot2 for Thomas Gleixner
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