powerpc/fsl_uli1575: Misc cleanup

Use a single line for uli_exclude_device().

Add uli_exclude_device() prototype in ppc-pci.h and guard it.

Remove that prototype from mpc85xx_ds.c and mpc86xx_hpcn.c files.

Make uli_pirq_to_irq[] static as it is used only in that file.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230409000812.18904-2-pali@kernel.org

arch/powerpc/include/asm/ppc-pci.h

@@ -57,11 +57,20 @@ void eeh_sysfs_remove_device(struct pci_dev *pdev);
 
 #endif /* CONFIG_EEH */
 
+#ifdef CONFIG_FSL_ULI1575
+int uli_exclude_device(struct pci_controller *hose, u_char bus, u_char devfn);
+#endif /* CONFIG_FSL_ULI1575 */
+
 #define PCI_BUSNO(bdfn) ((bdfn >> 8) & 0xff)
 
 #else /* CONFIG_PCI */
 static inline void init_pci_config_tokens(void) { }
 #endif /* !CONFIG_PCI */
 
+#if !defined(CONFIG_PCI) || !defined(CONFIG_FSL_ULI1575)
+#include <linux/pci.h>
+static inline int uli_exclude_device(struct pci_controller *hose, u_char bus, u_char devfn) { return PCIBIOS_SUCCESSFUL; }
+#endif /* !defined(CONFIG_PCI) || !defined(CONFIG_FSL_ULI1575) */
+
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_PPC_PCI_H */

arch/powerpc/platforms/85xx/mpc85xx_ds.c

@@ -26,6 +26,7 @@
 #include <asm/mpic.h>
 #include <asm/i8259.h>
 #include <asm/swiotlb.h>
+#include <asm/ppc-pci.h>
 
 #include <sysdev/fsl_soc.h>
 #include <sysdev/fsl_pci.h>
@@ -107,9 +108,6 @@ void __init mpc85xx_ds_pic_init(void)
 }
 
 #ifdef CONFIG_PCI
-extern int uli_exclude_device(struct pci_controller *hose,
-				u_char bus, u_char devfn);
-
 static struct device_node *pci_with_uli;
 
 static int mpc85xx_exclude_device(struct pci_controller *hose,

arch/powerpc/platforms/86xx/mpc86xx_hpcn.c

@@ -22,6 +22,7 @@
 #include <mm/mmu_decl.h>
 #include <asm/udbg.h>
 #include <asm/swiotlb.h>
+#include <asm/ppc-pci.h>
 
 #include <asm/mpic.h>
 
@@ -39,9 +40,6 @@
 #endif
 
 #ifdef CONFIG_PCI
-extern int uli_exclude_device(struct pci_controller *hose,
-				u_char bus, u_char devfn);
-
 static int mpc86xx_exclude_device(struct pci_controller *hose,
 				   u_char bus, u_char devfn)
 {

arch/powerpc/platforms/fsl_uli1575.c

@@ -13,6 +13,7 @@
 #include <linux/of_irq.h>
 
 #include <asm/pci-bridge.h>
+#include <asm/ppc-pci.h>
 
 #define ULI_PIRQA	0x08
 #define ULI_PIRQB	0x09
@@ -36,7 +37,7 @@
 #define ULI_8259_IRQ14	0x0d
 #define ULI_8259_IRQ15	0x0f
 
-u8 uli_pirq_to_irq[8] = {
+static u8 uli_pirq_to_irq[8] = {
 	ULI_8259_IRQ9,		/* PIRQA */
 	ULI_8259_IRQ10,		/* PIRQB */
 	ULI_8259_IRQ11,		/* PIRQC */
@@ -341,8 +342,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5288, hpcd_quirk_uli5288);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x5229, hpcd_quirk_uli5229);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, 0x5288, hpcd_final_uli5288);
 
-int uli_exclude_device(struct pci_controller *hose,
-			u_char bus, u_char devfn)
+int uli_exclude_device(struct pci_controller *hose, u_char bus, u_char devfn)
 {
 	if (bus == (hose->first_busno + 2)) {
 		/* exclude Modem controller */