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xtensa/PCI: Remove dead code 

Remove the following unused functions:

  pcibios_enable_resources()
  pcibios_alloc_controller()
  pci_controller_num()

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Bjorn Helgaas 2018-05-22 07:56:05 -05:00 committed by Bjorn Helgaas
parent 59f2d3d3e6
commit 99efbb86de
2 changed files with 0 additions and 61 deletions
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2
arch/xtensa/include/asm/pci.h
View File

@ -20,8 +20,6 @@
#define pcibios_assign_all_busses() 0
extern struct pci_controller* pcibios_alloc_controller(void);
/* Assume some values. (We should revise them, if necessary) */
#define PCIBIOS_MIN_IO 0x2000

59
arch/xtensa/kernel/pci.c
View File

@ -80,50 +80,6 @@ pcibios_align_resource(void *data, const struct resource *res,
return start;
}
int
pcibios_enable_resources(struct pci_dev *dev, int mask)
{
u16 cmd, old_cmd;
int idx;
struct resource *r;
pci_read_config_word(dev, PCI_COMMAND, &cmd);
old_cmd = cmd;
for(idx=0; idx<6; idx++) {
r = &dev->resource[idx];
if (!r->start && r->end) {
pr_err("PCI: Device %s not available because "
"of resource collisions\n", pci_name(dev));
return -EINVAL;
}
if (r->flags & IORESOURCE_IO)
cmd |= PCI_COMMAND_IO;
if (r->flags & IORESOURCE_MEM)
cmd |= PCI_COMMAND_MEMORY;
}
if (dev->resource[PCI_ROM_RESOURCE].start)
cmd |= PCI_COMMAND_MEMORY;
if (cmd != old_cmd) {
pr_info("PCI: Enabling device %s (%04x -> %04x)\n",
pci_name(dev), old_cmd, cmd);
pci_write_config_word(dev, PCI_COMMAND, cmd);
}
return 0;
}
struct pci_controller * __init pcibios_alloc_controller(void)
{
struct pci_controller *pci_ctrl;
pci_ctrl = (struct pci_controller *)alloc_bootmem(sizeof(*pci_ctrl));
memset(pci_ctrl, 0, sizeof(struct pci_controller));
*pci_ctrl_tail = pci_ctrl;
pci_ctrl_tail = &pci_ctrl->next;
return pci_ctrl;
}
static void __init pci_controller_apertures(struct pci_controller *pci_ctrl,
struct list_head *resources)
{
@ -241,21 +197,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
return 0;
}
#ifdef CONFIG_PROC_FS
/*
* Return the index of the PCI controller for device pdev.
*/
int
pci_controller_num(struct pci_dev *dev)
{
struct pci_controller *pci_ctrl = (struct pci_controller*) dev->sysdata;
return pci_ctrl->index;
}
#endif /* CONFIG_PROC_FS */
/*
* Platform support for /proc/bus/pci/X/Y mmap()s.
* -- paulus.