PCI: Remove pci_get_legacy_ide_irq() and asm-generic/pci.h

pci_get_legacy_ide_irq() is only used on platforms that support PNP, so
many architectures define it but never use it.  Replace uses of it with
ATA_PRIMARY_IRQ() and ATA_SECONDARY_IRQ(), which provide the same
functionality.

Since pci_get_legacy_ide_irq() is no longer used, remove all the
architecture-specific definitions of it as well as asm-generic/pci.h, which
only provides pci_get_legacy_ide_irq()

[bhelgaas: commit log]
Co-developed-by: Arnd Bergmann <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>
Signed-off-by: Stafford Horne <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Acked-by: Geert Uytterhoeven <[email protected]>
Acked-by: Pierre Morel <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>

Author: stffrdhrn

arch/alpha/include/asm/pci.h

@@ -56,12 +56,6 @@ struct pci_controller {
 
 /* IOMMU controls.  */
 
-/* TODO: integrate with include/asm-generic/pci.h ? */
-static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
-{
-	return channel ? 15 : 14;
-}
-
 #define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index
 
 static inline int pci_proc_domain(struct pci_bus *bus)

arch/arm/include/asm/pci.h

@@ -22,11 +22,6 @@ static inline int pci_proc_domain(struct pci_bus *bus)
 #define HAVE_PCI_MMAP
 #define ARCH_GENERIC_PCI_MMAP_RESOURCE
 
-static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
-{
-	return channel ? 15 : 14;
-}
-
 extern void pcibios_report_status(unsigned int status_mask, int warn);
 
 #endif /* __KERNEL__ */

arch/arm64/include/asm/pci.h

@@ -23,12 +23,6 @@
 extern int isa_dma_bridge_buggy;
 
 #ifdef CONFIG_PCI
-static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
-{
-	/* no legacy IRQ on arm64 */
-	return -ENODEV;
-}
-
 static inline int pci_proc_domain(struct pci_bus *bus)
 {
 	return 1;

arch/csky/include/asm/pci.h

@@ -18,12 +18,6 @@
 extern int isa_dma_bridge_buggy;
 
 #ifdef CONFIG_PCI
-static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
-{
-	/* no legacy IRQ on csky */
-	return -ENODEV;
-}
-
 static inline int pci_proc_domain(struct pci_bus *bus)
 {
 	/* always show the domain in /proc */

arch/ia64/include/asm/pci.h

@@ -63,10 +63,4 @@ static inline int pci_proc_domain(struct pci_bus *bus)
 	return (pci_domain_nr(bus) != 0);
 }
 
-#define HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ
-static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
-{
-	return channel ? isa_irq_to_vector(15) : isa_irq_to_vector(14);
-}
-
 #endif /* _ASM_IA64_PCI_H */

arch/m68k/include/asm/pci.h

@@ -2,8 +2,6 @@
 #ifndef _ASM_M68K_PCI_H
 #define _ASM_M68K_PCI_H
 
-#include <asm-generic/pci.h>
-
 #define	pcibios_assign_all_busses()	1
 
 #define	PCIBIOS_MIN_IO		0x00000100

arch/mips/include/asm/pci.h

@@ -139,10 +139,4 @@ static inline int pci_proc_domain(struct pci_bus *bus)
 /* Do platform specific device initialization at pci_enable_device() time */
 extern int pcibios_plat_dev_init(struct pci_dev *dev);
 
-/* Chances are this interrupt is wired PC-style ...  */
-static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
-{
-	return channel ? 15 : 14;
-}
-
 #endif /* _ASM_PCI_H */

arch/parisc/include/asm/pci.h

@@ -162,11 +162,6 @@ extern void pcibios_init_bridge(struct pci_dev *);
 #define PCIBIOS_MIN_IO          0x10
 #define PCIBIOS_MIN_MEM         0x1000 /* NBPG - but pci/setup-res.c dies */
 
-static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
-{
-	return channel ? 15 : 14;
-}
-
 #define HAVE_PCI_MMAP
 #define ARCH_GENERIC_PCI_MMAP_RESOURCE
 

arch/powerpc/include/asm/pci.h

@@ -39,7 +39,6 @@
 #define pcibios_assign_all_busses() \
 	(pci_has_flag(PCI_REASSIGN_ALL_BUS))
 
-#define HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ
 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 {
 	if (ppc_md.pci_get_legacy_ide_irq)

arch/riscv/include/asm/pci.h

@@ -23,12 +23,6 @@
 extern int isa_dma_bridge_buggy;
 
 #ifdef CONFIG_PCI
-static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
-{
-	/* no legacy IRQ on risc-v */
-	return -ENODEV;
-}
-
 static inline int pci_proc_domain(struct pci_bus *bus)
 {
 	/* always show the domain in /proc */