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PCI: Rename pci_try_reset_bus() to pci_reset_bus()

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Now that the old implementation of pci_reset_bus() is gone, replace
pci_try_reset_bus() with pci_reset_bus().

Compared to the old implementation, new code will fail immmediately with
-EAGAIN if object lock cannot be obtained.

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Sinan Kaya 2018-07-19 18:04:15 -05:00 committed by Bjorn Helgaas
parent fe32e2fa65
commit c6a44ba950
4 changed files with 12 additions and 12 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/infiniband/hw/hfi1/pcie.c
View file

@ -905,7 +905,7 @@ static int trigger_sbr(struct hfi1_devdata *dd)
* delay after a reset is required. Per spec requirements, * delay after a reset is required. Per spec requirements,
* the link is either working or not after that point. * the link is either working or not after that point.
*/ */
return pci_try_reset_bus(dev); return pci_reset_bus(dev);
} }
/* /*

16
drivers/pci/pci.c
View file

@ -4784,7 +4784,7 @@ int pci_probe_reset_slot(struct pci_slot *slot)
EXPORT_SYMBOL_GPL(pci_probe_reset_slot); EXPORT_SYMBOL_GPL(pci_probe_reset_slot);
/** /**
* __pci_try_reset_slot - Try to reset a PCI slot * __pci_reset_slot - Try to reset a PCI slot
* @slot: PCI slot to reset * @slot: PCI slot to reset
* *
* A PCI bus may host multiple slots, each slot may support a reset mechanism * A PCI bus may host multiple slots, each slot may support a reset mechanism
@ -4798,7 +4798,7 @@ EXPORT_SYMBOL_GPL(pci_probe_reset_slot);
* *
* Same as above except return -EAGAIN if the slot cannot be locked * Same as above except return -EAGAIN if the slot cannot be locked
*/ */
static int __pci_try_reset_slot(struct pci_slot *slot) static int __pci_reset_slot(struct pci_slot *slot)
{ {
int rc; int rc;
@ -4854,12 +4854,12 @@ int pci_probe_reset_bus(struct pci_bus *bus)
EXPORT_SYMBOL_GPL(pci_probe_reset_bus); EXPORT_SYMBOL_GPL(pci_probe_reset_bus);
/** /**
* __pci_try_reset_bus - Try to reset a PCI bus * __pci_reset_bus - Try to reset a PCI bus
* @bus: top level PCI bus to reset * @bus: top level PCI bus to reset
* *
* Same as above except return -EAGAIN if the bus cannot be locked * Same as above except return -EAGAIN if the bus cannot be locked
*/ */
static int __pci_try_reset_bus(struct pci_bus *bus) static int __pci_reset_bus(struct pci_bus *bus)
{ {
int rc; int rc;
@ -4882,17 +4882,17 @@ static int __pci_try_reset_bus(struct pci_bus *bus)
} }
/** /**
* pci_try_reset_bus - Try to reset a PCI bus * pci_reset_bus - Try to reset a PCI bus
* @pdev: top level PCI device to reset via slot/bus * @pdev: top level PCI device to reset via slot/bus
* *
* Same as above except return -EAGAIN if the bus cannot be locked * Same as above except return -EAGAIN if the bus cannot be locked
*/ */
int pci_try_reset_bus(struct pci_dev *pdev) int pci_reset_bus(struct pci_dev *pdev)
{ {
return pci_probe_reset_slot(pdev->slot) ? return pci_probe_reset_slot(pdev->slot) ?
__pci_try_reset_slot(pdev->slot) : __pci_try_reset_bus(pdev->bus); __pci_reset_slot(pdev->slot) : __pci_reset_bus(pdev->bus);
} }
EXPORT_SYMBOL_GPL(pci_try_reset_bus); EXPORT_SYMBOL_GPL(pci_reset_bus);
/** /**
* pcix_get_max_mmrbc - get PCI-X maximum designed memory read byte count * pcix_get_max_mmrbc - get PCI-X maximum designed memory read byte count

4
drivers/vfio/pci/vfio_pci.c
View file

@ -1010,7 +1010,7 @@ static long vfio_pci_ioctl(void *device_data,
&info, slot); &info, slot);
if (!ret) if (!ret)
/* User has access, do the reset */ /* User has access, do the reset */
ret = pci_try_reset_bus(vdev->pdev); ret = pci_reset_bus(vdev->pdev);
hot_reset_release: hot_reset_release:
for (i--; i >= 0; i--) for (i--; i >= 0; i--)
@ -1372,7 +1372,7 @@ static void vfio_pci_try_bus_reset(struct vfio_pci_device *vdev)
} }
if (needs_reset) if (needs_reset)
ret = pci_try_reset_bus(vdev->pdev); ret = pci_reset_bus(vdev->pdev);
put_devs: put_devs:
for (i = 0; i < devs.cur_index; i++) { for (i = 0; i < devs.cur_index; i++) {

2
include/linux/pci.h
View file

@ -1097,7 +1097,7 @@ int pci_reset_function_locked(struct pci_dev *dev);
int pci_try_reset_function(struct pci_dev *dev); int pci_try_reset_function(struct pci_dev *dev);
int pci_probe_reset_slot(struct pci_slot *slot); int pci_probe_reset_slot(struct pci_slot *slot);
int pci_probe_reset_bus(struct pci_bus *bus); int pci_probe_reset_bus(struct pci_bus *bus);
int pci_try_reset_bus(struct pci_dev *dev); int pci_reset_bus(struct pci_dev *dev);
void pci_reset_secondary_bus(struct pci_dev *dev); void pci_reset_secondary_bus(struct pci_dev *dev);
void pcibios_reset_secondary_bus(struct pci_dev *dev); void pcibios_reset_secondary_bus(struct pci_dev *dev);
void pci_update_resource(struct pci_dev *dev, int resno); void pci_update_resource(struct pci_dev *dev, int resno);