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PCI: Remove unused pci_renumber_slot()

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My philosophy is unused code is dead code.  And dead code is subject to bit
rot and is a likely source of bugs.  Use it or lose it.

This reverts part of f46753c5e3 ("PCI: introduce pci_slot") and
d25b7c8d6b ("PCI: rename pci_update_slot_number to pci_renumber_slot"),
removing this interface:

    pci_renumber_slot()

[bhelgaas: split to separate patch, add historical link from Alex]
Link: http://lkml.kernel.org/r/20081009043140.8678.44164.stgit@bob.kio
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Alex Chiang <achiang@canonical.com>
This commit is contained in:
Stephen Hemminger 2014-01-10 15:41:35 -07:00 committed by Bjorn Helgaas
parent 8f92fb06ff
commit 4ab4467606
2 changed files with 0 additions and 27 deletions
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26
drivers/pci/slot.c
View file

@ -319,32 +319,6 @@ struct pci_slot *pci_create_slot(struct pci_bus *parent, int slot_nr,
}
EXPORT_SYMBOL_GPL(pci_create_slot);
/**
* pci_renumber_slot - update %struct pci_slot -> number
* @slot: &struct pci_slot to update
* @slot_nr: new number for slot
*
* The primary purpose of this interface is to allow callers who earlier
* created a placeholder slot in pci_create_slot() by passing a -1 as
* slot_nr, to update their %struct pci_slot with the correct @slot_nr.
*/
void pci_renumber_slot(struct pci_slot *slot, int slot_nr)
{
struct pci_slot *tmp;
down_write(&pci_bus_sem);
list_for_each_entry(tmp, &slot->bus->slots, list) {
WARN_ON(tmp->number == slot_nr);
goto out;
}
slot->number = slot_nr;
out:
up_write(&pci_bus_sem);
}
EXPORT_SYMBOL_GPL(pci_renumber_slot);
/**
* pci_destroy_slot - decrement refcount for physical PCI slot
* @slot: struct pci_slot to decrement

1
include/linux/pci.h
View file

@ -763,7 +763,6 @@ struct pci_slot *pci_create_slot(struct pci_bus *parent, int slot_nr,
const char *name,
struct hotplug_slot *hotplug);
void pci_destroy_slot(struct pci_slot *slot);
void pci_renumber_slot(struct pci_slot *slot, int slot_nr);
int pci_scan_slot(struct pci_bus *bus, int devfn);
struct pci_dev *pci_scan_single_device(struct pci_bus *bus, int devfn);
void pci_device_add(struct pci_dev *dev, struct pci_bus *bus);