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microblaze/PCI: Remove Null PCI config access unused functions

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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: Thippeswamy Havalige <thippeswamy.havalige@amd.com>
Link: https://lore.kernel.org/r/20221025065214.4663-3-thippeswamy.havalige@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
This commit is contained in:
Thippeswamy Havalige
2022-10-25 12:22:03 +05:30
committed by Michal Simek
parent 68db4e9e5f
commit fe2b509768
1 changed files with 0 additions and 64 deletions
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64
arch/microblaze/pci/pci-common.c
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@@ -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)