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PCI: Remove unused pci_request_region_exclusive()

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pci_request_region_exclusive() was introduced with commit e8de1481fd
("resource: allow MMIO exclusivity for device drivers") in 2.6.29 which
was released 2008.

It never had an in tree user since then, so after 11 years later let's
remove it.

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Johannes Thumshirn 2019-04-17 10:23:56 +02:00 committed by Bjorn Helgaas
parent 296bd5aea2
commit 804ee5be63
2 changed files with 0 additions and 26 deletions
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25
drivers/pci/pci.c
View File

@ -3706,31 +3706,6 @@ int pci_request_region(struct pci_dev *pdev, int bar, const char *res_name)
}
EXPORT_SYMBOL(pci_request_region);
/**
* pci_request_region_exclusive - Reserved PCI I/O and memory resource
* @pdev: PCI device whose resources are to be reserved
* @bar: BAR to be reserved
* @res_name: Name to be associated with resource.
*
* Mark the PCI region associated with PCI device @pdev BR @bar as
* being reserved by owner @res_name. Do not access any
* address inside the PCI regions unless this call returns
* successfully.
*
* Returns 0 on success, or %EBUSY on error. A warning
* message is also printed on failure.
*
* The key difference that _exclusive makes it that userspace is
* explicitly not allowed to map the resource via /dev/mem or
* sysfs.
*/
int pci_request_region_exclusive(struct pci_dev *pdev, int bar,
const char *res_name)
{
return __pci_request_region(pdev, bar, res_name, IORESOURCE_EXCLUSIVE);
}
EXPORT_SYMBOL(pci_request_region_exclusive);
/**
* pci_release_selected_regions - Release selected PCI I/O and memory resources
* @pdev: PCI device whose resources were previously reserved

1
include/linux/pci.h
View File

@ -1233,7 +1233,6 @@ int __must_check pci_request_regions(struct pci_dev *, const char *);
int __must_check pci_request_regions_exclusive(struct pci_dev *, const char *);
void pci_release_regions(struct pci_dev *);
int __must_check pci_request_region(struct pci_dev *, int, const char *);
int __must_check pci_request_region_exclusive(struct pci_dev *, int, const char *);
void pci_release_region(struct pci_dev *, int);
int pci_request_selected_regions(struct pci_dev *, int, const char *);
int pci_request_selected_regions_exclusive(struct pci_dev *, int, const char *);