Commit fe2b5097 authored by Thippeswamy Havalige's avatar Thippeswamy Havalige Committed by Michal Simek
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microblaze/PCI: Remove Null PCI config access unused functions 



Remove unused NULL_PCI_OP config access functions, for the case when
we can't find a hose.

Remove unused EARLY_PCI_OP and other declarations.

Signed-off-by: default avatarThippeswamy Havalige <thippeswamy.havalige@amd.com>
Link: https://lore.kernel.org/r/20221025065214.4663-3-thippeswamy.havalige@amd.com


Signed-off-by: default avatarMichal Simek <michal.simek@amd.com>
parent 68db4e9e

arch/microblaze/pci/pci-common.c

+0 −64
Original line number Diff line number Diff line
@@ -996,67 +996,3 @@ long sys_pciconfig_iobase(long which, unsigned long bus, unsigned long devfn) 


	return result;

}
 


/*

 * Null PCI config access functions, for the case when we can't

 * find a hose.

 */

#define NULL_PCI_OP(rw, size, type)					\

static int								\

null_##rw##_config_##size(struct pci_dev *dev, int offset, type val)	\

{									\

	return PCIBIOS_DEVICE_NOT_FOUND;				\

}



static int

null_read_config(struct pci_bus *bus, unsigned int devfn, int offset,

		 int len, u32 *val)

{

	return PCIBIOS_DEVICE_NOT_FOUND;

}



static int

null_write_config(struct pci_bus *bus, unsigned int devfn, int offset,

		  int len, u32 val)

{

	return PCIBIOS_DEVICE_NOT_FOUND;

}



static struct pci_ops null_pci_ops = {

	.read = null_read_config,

	.write = null_write_config,

};



/*

 * These functions are used early on before PCI scanning is done

 * and all of the pci_dev and pci_bus structures have been created.

 */

static struct pci_bus *

fake_pci_bus(struct pci_controller *hose, int busnr)

{

	static struct pci_bus bus;



	if (!hose)

		pr_err("Can't find hose for PCI bus %d!\n", busnr);



	bus.number = busnr;

	bus.sysdata = hose;

	bus.ops = hose ? hose->ops : &null_pci_ops;

	return &bus;

}



#define EARLY_PCI_OP(rw, size, type)					\

int early_##rw##_config_##size(struct pci_controller *hose, int bus,	\

			       int devfn, int offset, type value)	\

{									\

	return pci_bus_##rw##_config_##size(fake_pci_bus(hose, bus),	\

					    devfn, offset, value);	\

}



EARLY_PCI_OP(read, byte, u8 *)

EARLY_PCI_OP(read, word, u16 *)

EARLY_PCI_OP(read, dword, u32 *)

EARLY_PCI_OP(write, byte, u8)

EARLY_PCI_OP(write, word, u16)

EARLY_PCI_OP(write, dword, u32)