On Tue, Aug 26, 2025 at 08:35:35PM -0500, Terry Bowman wrote: > +++ b/include/linux/pci.h > @@ -2760,6 +2760,17 @@ static inline bool pci_is_thunderbolt_attached(struct pci_dev *pdev) > void pci_uevent_ers(struct pci_dev *pdev, enum pci_ers_result err_type); > #endif > > +#if defined(CONFIG_PCIEAER) > +pci_ers_result_t pci_ers_merge_result(enum pci_ers_result orig, > + enum pci_ers_result new); > +#else > +static inline pci_ers_result_t pci_ers_merge_result(enum pci_ers_result orig, > + enum pci_ers_result new) > +{ > + return PCI_ERS_RESULT_NONE; > +} > +#endif > + > #include <linux/dma-mapping.h> > > #define pci_emerg(pdev, fmt, arg...) dev_emerg(&(pdev)->dev, fmt, ##arg) Would it be possible for you to just declare a local version of pci_ers_merge_result() within drivers/cxl/ which is encapsulated by "#ifndef CONFIG_PCIEAER"? That would avoid the need to make this public in include/linux/pci.h. Thanks, Lukas