My philosophy is unused code is dead code.
And dead code is subject to bit rot and is likely source of bugs.
Use it or lose it.
Signed-off-by: Stephen Hemminger <stephen@xxxxxxxxxxxxxxxxxx>
---
Patch against next branch of pci git
Documentation/PCI/pci-iov-howto.txt | 4
drivers/pci/access.c | 24 ---
drivers/pci/ats.c | 81 ----------
drivers/pci/iov.c | 39 ----
drivers/pci/pci.c | 282 ------------------------------------
drivers/pci/pcie/aspm.c | 12 -
drivers/pci/probe.c | 6
drivers/pci/slot.c | 26 ---
include/linux/pci-ats.h | 17 --
include/linux/pci.h | 4
10 files changed, 495 deletions(-)
--- a/drivers/pci/pci.c 2013-12-27 13:14:16.539801861 -0800
+++ b/drivers/pci/pci.c 2013-12-27 13:14:18.159776829 -0800
@@ -2169,242 +2169,6 @@ void pci_configure_ari(struct pci_dev *d
}
}
-/**
- * pci_enable_ido - enable ID-based Ordering on a device
- * @dev: the PCI device
- * @type: which types of IDO to enable
- *
- * Enable ID-based ordering on @dev. @type can contain the bits
- * %PCI_EXP_IDO_REQUEST and/or %PCI_EXP_IDO_COMPLETION to indicate
- * which types of transactions are allowed to be re-ordered.
- */
-void pci_enable_ido(struct pci_dev *dev, unsigned long type)
-{
- u16 ctrl = 0;
-
- if (type & PCI_EXP_IDO_REQUEST)
- ctrl |= PCI_EXP_DEVCTL2_IDO_REQ_EN;
- if (type & PCI_EXP_IDO_COMPLETION)
- ctrl |= PCI_EXP_DEVCTL2_IDO_CMP_EN;
- if (ctrl)
- pcie_capability_set_word(dev, PCI_EXP_DEVCTL2, ctrl);
-}
-EXPORT_SYMBOL(pci_enable_ido);
-
-/**
- * pci_disable_ido - disable ID-based ordering on a device
- * @dev: the PCI device
- * @type: which types of IDO to disable
- */
-void pci_disable_ido(struct pci_dev *dev, unsigned long type)
-{
- u16 ctrl = 0;
-
- if (type & PCI_EXP_IDO_REQUEST)
- ctrl |= PCI_EXP_DEVCTL2_IDO_REQ_EN;
- if (type & PCI_EXP_IDO_COMPLETION)
- ctrl |= PCI_EXP_DEVCTL2_IDO_CMP_EN;
- if (ctrl)
- pcie_capability_clear_word(dev, PCI_EXP_DEVCTL2, ctrl);
-}
-EXPORT_SYMBOL(pci_disable_ido);
-
-/**
- * pci_enable_obff - enable optimized buffer flush/fill
- * @dev: PCI device
- * @type: type of signaling to use
- *
- * Try to enable @type OBFF signaling on @dev. It will try using WAKE#
- * signaling if possible, falling back to message signaling only if
- * WAKE# isn't supported. @type should indicate whether the PCIe link
- * be brought out of L0s or L1 to send the message. It should be either
- * %PCI_EXP_OBFF_SIGNAL_ALWAYS or %PCI_OBFF_SIGNAL_L0.
- *
- * If your device can benefit from receiving all messages, even at the
- * power cost of bringing the link back up from a low power state, use
- * %PCI_EXP_OBFF_SIGNAL_ALWAYS. Otherwise, use %PCI_OBFF_SIGNAL_L0 (the
- * preferred type).
- *
- * RETURNS:
- * Zero on success, appropriate error number on failure.
- */
-int pci_enable_obff(struct pci_dev *dev, enum pci_obff_signal_type type)
-{
- u32 cap;
- u16 ctrl;
- int ret;
-
- pcie_capability_read_dword(dev, PCI_EXP_DEVCAP2, &cap);
- if (!(cap & PCI_EXP_DEVCAP2_OBFF_MASK))
- return -ENOTSUPP; /* no OBFF support at all */
-
- /* Make sure the topology supports OBFF as well */
- if (dev->bus->self) {
- ret = pci_enable_obff(dev->bus->self, type);
- if (ret)
- return ret;
- }
-
- pcie_capability_read_word(dev, PCI_EXP_DEVCTL2, &ctrl);
- if (cap & PCI_EXP_DEVCAP2_OBFF_WAKE)
- ctrl |= PCI_EXP_DEVCTL2_OBFF_WAKE_EN;
- else {
- switch (type) {
- case PCI_EXP_OBFF_SIGNAL_L0:
- if (!(ctrl & PCI_EXP_DEVCTL2_OBFF_WAKE_EN))
- ctrl |= PCI_EXP_DEVCTL2_OBFF_MSGA_EN;
- break;
- case PCI_EXP_OBFF_SIGNAL_ALWAYS:
- ctrl &= ~PCI_EXP_DEVCTL2_OBFF_WAKE_EN;
- ctrl |= PCI_EXP_DEVCTL2_OBFF_MSGB_EN;
- break;
- default:
- WARN(1, "bad OBFF signal type\n");
- return -ENOTSUPP;
- }
- }
- pcie_capability_write_word(dev, PCI_EXP_DEVCTL2, ctrl);
-
- return 0;
-}
-EXPORT_SYMBOL(pci_enable_obff);
-
-/**
- * pci_disable_obff - disable optimized buffer flush/fill
- * @dev: PCI device
- *
- * Disable OBFF on @dev.
- */
-void pci_disable_obff(struct pci_dev *dev)
-{
- pcie_capability_clear_word(dev, PCI_EXP_DEVCTL2,
- PCI_EXP_DEVCTL2_OBFF_WAKE_EN);
-}
-EXPORT_SYMBOL(pci_disable_obff);
-
-/**
- * pci_ltr_supported - check whether a device supports LTR
- * @dev: PCI device
- *
- * RETURNS:
- * True if @dev supports latency tolerance reporting, false otherwise.
- */
-static bool pci_ltr_supported(struct pci_dev *dev)
-{
- u32 cap;
-
- pcie_capability_read_dword(dev, PCI_EXP_DEVCAP2, &cap);
-
- return cap & PCI_EXP_DEVCAP2_LTR;
-}
-
-/**
- * pci_enable_ltr - enable latency tolerance reporting
- * @dev: PCI device
- *
- * Enable LTR on @dev if possible, which means enabling it first on
- * upstream ports.
- *
- * RETURNS:
- * Zero on success, errno on failure.
- */
-int pci_enable_ltr(struct pci_dev *dev)
-{
- int ret;
-
- /* Only primary function can enable/disable LTR */
- if (PCI_FUNC(dev->devfn) != 0)
- return -EINVAL;
-
- if (!pci_ltr_supported(dev))
- return -ENOTSUPP;
-
- /* Enable upstream ports first */
- if (dev->bus->self) {
- ret = pci_enable_ltr(dev->bus->self);
- if (ret)
- return ret;
- }
-
- return pcie_capability_set_word(dev, PCI_EXP_DEVCTL2,
- PCI_EXP_DEVCTL2_LTR_EN);
-}
-EXPORT_SYMBOL(pci_enable_ltr);
-
-/**
- * pci_disable_ltr - disable latency tolerance reporting
- * @dev: PCI device
- */
-void pci_disable_ltr(struct pci_dev *dev)
-{
- /* Only primary function can enable/disable LTR */
- if (PCI_FUNC(dev->devfn) != 0)
- return;
-
- if (!pci_ltr_supported(dev))
- return;
-
- pcie_capability_clear_word(dev, PCI_EXP_DEVCTL2,
- PCI_EXP_DEVCTL2_LTR_EN);
-}
-EXPORT_SYMBOL(pci_disable_ltr);
-
-static int __pci_ltr_scale(int *val)
-{
- int scale = 0;
-
- while (*val > 1023) {
- *val = (*val + 31) / 32;
- scale++;
- }
- return scale;
-}
-
-/**
- * pci_set_ltr - set LTR latency values
- * @dev: PCI device
- * @snoop_lat_ns: snoop latency in nanoseconds
- * @nosnoop_lat_ns: nosnoop latency in nanoseconds
- *
- * Figure out the scale and set the LTR values accordingly.
- */
-int pci_set_ltr(struct pci_dev *dev, int snoop_lat_ns, int nosnoop_lat_ns)
-{
- int pos, ret, snoop_scale, nosnoop_scale;
- u16 val;
-
- if (!pci_ltr_supported(dev))
- return -ENOTSUPP;
-
- snoop_scale = __pci_ltr_scale(&snoop_lat_ns);
- nosnoop_scale = __pci_ltr_scale(&nosnoop_lat_ns);
-
- if (snoop_lat_ns > PCI_LTR_VALUE_MASK ||
- nosnoop_lat_ns > PCI_LTR_VALUE_MASK)
- return -EINVAL;
-
- if ((snoop_scale > (PCI_LTR_SCALE_MASK >> PCI_LTR_SCALE_SHIFT)) ||
- (nosnoop_scale > (PCI_LTR_SCALE_MASK >> PCI_LTR_SCALE_SHIFT)))
- return -EINVAL;
-
- pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_LTR);
- if (!pos)
- return -ENOTSUPP;
-
- val = (snoop_scale << PCI_LTR_SCALE_SHIFT) | snoop_lat_ns;
- ret = pci_write_config_word(dev, pos + PCI_LTR_MAX_SNOOP_LAT, val);
- if (ret != 4)
- return -EIO;
-
- val = (nosnoop_scale << PCI_LTR_SCALE_SHIFT) | nosnoop_lat_ns;
- ret = pci_write_config_word(dev, pos + PCI_LTR_MAX_NOSNOOP_LAT, val);
- if (ret != 4)
- return -EIO;
-
- return 0;
-}
-EXPORT_SYMBOL(pci_set_ltr);
-
static int pci_acs_enable;
/**
@@ -2738,28 +2502,6 @@ int pci_request_region(struct pci_dev *p
}
/**
- * 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);
-}
-/**
* pci_release_selected_regions - Release selected PCI I/O and memory resources
* @pdev: PCI device whose resources were previously reserved
* @bars: Bitmask of BARs to be released
@@ -2847,28 +2589,6 @@ int pci_request_regions(struct pci_dev *
return pci_request_selected_regions(pdev, ((1 << 6) - 1), res_name);
}
-/**
- * pci_request_regions_exclusive - Reserved PCI I/O and memory resources
- * @pdev: PCI device whose resources are to be reserved
- * @res_name: Name to be associated with resource.
- *
- * Mark all PCI regions associated with PCI device @pdev as
- * being reserved by owner @res_name. Do not access any
- * address inside the PCI regions unless this call returns
- * successfully.
- *
- * pci_request_regions_exclusive() will mark the region so that
- * /dev/mem and the sysfs MMIO access will not be allowed.
- *
- * Returns 0 on success, or %EBUSY on error. A warning
- * message is also printed on failure.
- */
-int pci_request_regions_exclusive(struct pci_dev *pdev, const char *res_name)
-{
- return pci_request_selected_regions_exclusive(pdev,
- ((1 << 6) - 1), res_name);
-}
-
static void __pci_set_master(struct pci_dev *dev, bool enable)
{
u16 old_cmd, cmd;
@@ -4460,10 +4180,8 @@ EXPORT_SYMBOL(pci_find_capability);
EXPORT_SYMBOL(pci_bus_find_capability);
EXPORT_SYMBOL(pci_release_regions);
EXPORT_SYMBOL(pci_request_regions);
-EXPORT_SYMBOL(pci_request_regions_exclusive);
EXPORT_SYMBOL(pci_release_region);
EXPORT_SYMBOL(pci_request_region);
-EXPORT_SYMBOL(pci_request_region_exclusive);
EXPORT_SYMBOL(pci_release_selected_regions);
EXPORT_SYMBOL(pci_request_selected_regions);
EXPORT_SYMBOL(pci_request_selected_regions_exclusive);
--- a/drivers/pci/access.c 2013-12-27 13:14:16.539801861 -0800
+++ b/drivers/pci/access.c 2013-12-27 13:14:18.159776829 -0800
@@ -381,30 +381,6 @@ int pci_vpd_pci22_init(struct pci_dev *d
}
/**
- * pci_vpd_truncate - Set available Vital Product Data size
- * @dev: pci device struct
- * @size: available memory in bytes
- *
- * Adjust size of available VPD area.
- */
-int pci_vpd_truncate(struct pci_dev *dev, size_t size)
-{
- if (!dev->vpd)
- return -EINVAL;
-
- /* limited by the access method */
- if (size > dev->vpd->len)
- return -EINVAL;
-
- dev->vpd->len = size;
- if (dev->vpd->attr)
- dev->vpd->attr->size = size;
-
- return 0;
-}
-EXPORT_SYMBOL(pci_vpd_truncate);
-
-/**
* pci_cfg_access_lock - Lock PCI config reads/writes
* @dev: pci device struct
*
--- a/drivers/pci/ats.c 2013-12-27 13:14:16.539801861 -0800
+++ b/drivers/pci/ats.c 2013-12-27 13:14:18.159776829 -0800
@@ -234,26 +234,6 @@ void pci_disable_pri(struct pci_dev *pde
}
EXPORT_SYMBOL_GPL(pci_disable_pri);
-/**
- * pci_pri_enabled - Checks if PRI capability is enabled
- * @pdev: PCI device structure
- *
- * Returns true if PRI is enabled on the device, false otherwise
- */
-bool pci_pri_enabled(struct pci_dev *pdev)
-{
- u16 control;
- int pos;
-
- pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
- if (!pos)
- return false;
-
- pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
-
- return (control & PCI_PRI_CTRL_ENABLE) ? true : false;
-}
-EXPORT_SYMBOL_GPL(pci_pri_enabled);
/**
* pci_reset_pri - Resets device's PRI state
@@ -282,67 +262,6 @@ int pci_reset_pri(struct pci_dev *pdev)
return 0;
}
EXPORT_SYMBOL_GPL(pci_reset_pri);
-
-/**
- * pci_pri_stopped - Checks whether the PRI capability is stopped
- * @pdev: PCI device structure
- *
- * Returns true if the PRI capability on the device is disabled and the
- * device has no outstanding PRI requests, false otherwise. The device
- * indicates this via the STOPPED bit in the status register of the
- * capability.
- * The device internal state can be cleared by resetting the PRI state
- * with pci_reset_pri(). This can force the capability into the STOPPED
- * state.
- */
-bool pci_pri_stopped(struct pci_dev *pdev)
-{
- u16 control, status;
- int pos;
-
- pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
- if (!pos)
- return true;
-
- pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
- pci_read_config_word(pdev, pos + PCI_PRI_STATUS, &status);
-
- if (control & PCI_PRI_CTRL_ENABLE)
- return false;
-
- return (status & PCI_PRI_STATUS_STOPPED) ? true : false;
-}
-EXPORT_SYMBOL_GPL(pci_pri_stopped);
-
-/**
- * pci_pri_status - Request PRI status of a device
- * @pdev: PCI device structure
- *
- * Returns negative value on failure, status on success. The status can
- * be checked against status-bits. Supported bits are currently:
- * PCI_PRI_STATUS_RF: Response failure
- * PCI_PRI_STATUS_UPRGI: Unexpected Page Request Group Index
- * PCI_PRI_STATUS_STOPPED: PRI has stopped
- */
-int pci_pri_status(struct pci_dev *pdev)
-{
- u16 status, control;
- int pos;
-
- pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
- if (!pos)
- return -EINVAL;
-
- pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
- pci_read_config_word(pdev, pos + PCI_PRI_STATUS, &status);
-
- /* Stopped bit is undefined when enable == 1, so clear it */
- if (control & PCI_PRI_CTRL_ENABLE)
- status &= ~PCI_PRI_STATUS_STOPPED;
-
- return status;
-}
-EXPORT_SYMBOL_GPL(pci_pri_status);
#endif /* CONFIG_PCI_PRI */
#ifdef CONFIG_PCI_PASID
--- a/include/linux/pci-ats.h 2013-12-27 13:14:16.539801861 -0800
+++ b/include/linux/pci-ats.h 2013-12-27 13:14:18.159776829 -0800
@@ -56,10 +56,7 @@ static inline int pci_ats_enabled(struct
int pci_enable_pri(struct pci_dev *pdev, u32 reqs);
void pci_disable_pri(struct pci_dev *pdev);
-bool pci_pri_enabled(struct pci_dev *pdev);
int pci_reset_pri(struct pci_dev *pdev);
-bool pci_pri_stopped(struct pci_dev *pdev);
-int pci_pri_status(struct pci_dev *pdev);
#else /* CONFIG_PCI_PRI */
@@ -72,25 +69,11 @@ static inline void pci_disable_pri(struc
{
}
-static inline bool pci_pri_enabled(struct pci_dev *pdev)
-{
- return false;
-}
-
static inline int pci_reset_pri(struct pci_dev *pdev)
{
return -ENODEV;
}
-static inline bool pci_pri_stopped(struct pci_dev *pdev)
-{
- return true;
-}
-
-static inline int pci_pri_status(struct pci_dev *pdev)
-{
- return -ENODEV;
-}
#endif /* CONFIG_PCI_PRI */
#ifdef CONFIG_PCI_PASID
--- a/Documentation/PCI/pci-iov-howto.txt 2013-12-27 13:14:16.539801861 -0800
+++ b/Documentation/PCI/pci-iov-howto.txt 2013-12-27 13:14:18.159776829 -0800
@@ -68,10 +68,6 @@ To disable SR-IOV capability:
echo 0 > \
/sys/bus/pci/devices/<DOMAIN:BUS:DEVICE.FUNCTION>/sriov_numvfs
-To notify SR-IOV core of Virtual Function Migration:
-(a) In the driver:
- irqreturn_t pci_sriov_migration(struct pci_dev *dev);
-
3.2 Usage example
Following piece of code illustrates the usage of the SR-IOV API.
--- a/drivers/pci/iov.c 2013-12-27 13:14:16.539801861 -0800
+++ b/drivers/pci/iov.c 2013-12-27 13:14:18.159776829 -0800
@@ -169,26 +169,6 @@ static void virtfn_remove(struct pci_dev
pci_dev_put(dev);
}
-static int sriov_migration(struct pci_dev *dev)
-{
- u16 status;
- struct pci_sriov *iov = dev->sriov;
-
- if (!iov->num_VFs)
- return 0;
-
- if (!(iov->cap & PCI_SRIOV_CAP_VFM))
- return 0;
-
- pci_read_config_word(dev, iov->pos + PCI_SRIOV_STATUS, &status);
- if (!(status & PCI_SRIOV_STATUS_VFM))
- return 0;
-
- schedule_work(&iov->mtask);
-
- return 1;
-}
-
static void sriov_migration_task(struct work_struct *work)
{
int i;
@@ -687,25 +667,6 @@ void pci_disable_sriov(struct pci_dev *d
EXPORT_SYMBOL_GPL(pci_disable_sriov);
/**
- * pci_sriov_migration - notify SR-IOV core of Virtual Function Migration
- * @dev: the PCI device
- *
- * Returns IRQ_HANDLED if the IRQ is handled, or IRQ_NONE if not.
- *
- * Physical Function driver is responsible to register IRQ handler using
- * VF Migration Interrupt Message Number, and call this function when the
- * interrupt is generated by the hardware.
- */
-irqreturn_t pci_sriov_migration(struct pci_dev *dev)
-{
- if (!dev->is_physfn)
- return IRQ_NONE;
-
- return sriov_migration(dev) ? IRQ_HANDLED : IRQ_NONE;
-}
-EXPORT_SYMBOL_GPL(pci_sriov_migration);
-
-/**
* pci_num_vf - return number of VFs associated with a PF device_release_driver
* @dev: the PCI device
*
--- a/drivers/pci/pcie/aspm.c 2013-12-27 13:14:16.539801861 -0800
+++ b/drivers/pci/pcie/aspm.c 2013-12-27 13:14:18.159776829 -0800
@@ -984,18 +984,6 @@ void pcie_no_aspm(void)
}
}
-/**
- * pcie_aspm_enabled - is PCIe ASPM enabled?
- *
- * Returns true if ASPM has not been disabled by the command-line option
- * pcie_aspm=off.
- **/
-int pcie_aspm_enabled(void)
-{
- return !aspm_disabled;
-}
-EXPORT_SYMBOL(pcie_aspm_enabled);
-
bool pcie_aspm_support_enabled(void)
{
return aspm_support_enabled;
--- a/include/linux/pci.h 2013-12-27 13:14:16.539801861 -0800
+++ b/include/linux/pci.h 2013-12-27 13:14:18.159776829 -0800
@@ -376,7 +376,6 @@ static inline struct pci_dev *pci_physfn
}
struct pci_dev *pci_alloc_dev(struct pci_bus *bus);
-struct pci_dev * __deprecated alloc_pci_dev(void);
#define to_pci_dev(n) container_of(n, struct pci_dev, dev)
#define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL)
@@ -761,7 +760,6 @@ struct pci_slot *pci_create_slot(struct
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);
@@ -1220,10 +1218,8 @@ extern bool pcie_ports_auto;
#endif
#ifndef CONFIG_PCIEASPM
-static inline int pcie_aspm_enabled(void) { return 0; }
static inline bool pcie_aspm_support_enabled(void) { return false; }
#else
-int pcie_aspm_enabled(void);
bool pcie_aspm_support_enabled(void);
#endif
--- a/drivers/pci/probe.c 2013-12-27 13:14:16.539801861 -0800
+++ b/drivers/pci/probe.c 2013-12-27 13:14:18.159776829 -0800
@@ -1260,12 +1260,6 @@ struct pci_dev *pci_alloc_dev(struct pci
}
EXPORT_SYMBOL(pci_alloc_dev);
-struct pci_dev *alloc_pci_dev(void)
-{
- return pci_alloc_dev(NULL);
-}
-EXPORT_SYMBOL(alloc_pci_dev);
-
bool pci_bus_read_dev_vendor_id(struct pci_bus *bus, int devfn, u32 *l,
int crs_timeout)
{
--- a/drivers/pci/slot.c 2013-12-27 13:14:16.539801861 -0800
+++ b/drivers/pci/slot.c 2013-12-27 13:14:18.159776829 -0800
@@ -320,32 +320,6 @@ err:
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
*
--
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