On Wed, 10 Dec 2025 08:25:59 -0600, Narayana Murty N wrote:
> The recent commit 1010b4c012b0 ("powerpc/eeh: Make EEH driver device
> hotplug safe") restructured the EEH driver to improve synchronization
> with the PCI hotplug layer.
>
> However, it inadvertently moved pci_lock_rescan_remove() outside its
> intended scope in eeh_handle_normal_event(), leading to broken PCI
> error reporting and improper EEH event triggering. Specifically,
> eeh_handle_normal_event() acquired pci_lock_rescan_remove() before
> calling eeh_pe_bus_get(), but eeh_pe_bus_get() itself attempts to
> acquire the same lock internally, causing nested locking and disrupting
> normal EEH event handling paths.
>
> [...]
Applied to powerpc/next.
[1/1] powerpc/eeh: fix recursive pci_lock_rescan_remove locking in EEH event
handling
https://git.kernel.org/powerpc/c/815a8d2feb5615ae7f0b5befd206af0b0160614c
cheers
