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Subject[PATCH] PCI: Remove pci_request_region_exclusive()
Date
pci_request_region_exclusive() was introduced with commit e8de1481fd71
("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>
---
drivers/pci/pci.c | 25 -------------------------
include/linux/pci.h | 1 -
2 files changed, 26 deletions(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 7c1b362f599a..d185b49e105a 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -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
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 77448215ef5b..5f32275358cf 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -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 *);
--
2.16.4
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