Some MIPS defconfigs that don't define 'CONFIG_PCI_DRIVERS_GENERIC' but define 'CONFIG_PCI_DRIVERS_LEGACY' or none of them, can fail when they are built since definition for 'pci_remap_iospace' is being done in include file 'arch/mips/include/asm/pci.h' and the specific function implemented in 'arch/mips/pci/pci-generic.c'. MIPS PCI drivers that don't use generic PCI core APIs don't really need 'pci_remap_iospace' to be defined at all. Hence, change definition for 'pci_remap_iospace' to be dependent on the preprocessor 'CONFIG_PCI_DRIVERS_GENERIC' definition to avoid possible build problems. CC: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx> Fixes: 9f76779f2418 ("MIPS: implement architecture-specific 'pci_remap_iospace()'") Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@xxxxxxxxx> --- Hi Greg, Thomas, Stephen, I guess this should also go through the staging-tree. Thanks in advance for your time. Best regards, Sergio Paracuellos arch/mips/include/asm/pci.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h index 35270984a5f0..421231f55935 100644 --- a/arch/mips/include/asm/pci.h +++ b/arch/mips/include/asm/pci.h @@ -20,7 +20,9 @@ #include <linux/list.h> #include <linux/of.h> +#ifdef CONFIG_PCI_DRIVERS_GENERIC #define pci_remap_iospace pci_remap_iospace +#endif #ifdef CONFIG_PCI_DRIVERS_LEGACY -- 2.33.0