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Getting a zpci_dev via get_zdev_by_bus() uses the long lived reference held in zbus->function[devfn]. This is accounted for in pcibios_add_device() and pcibios_release_device(). Therefore there is no need to increment the reference count in get_zdev_by_bus() as is done for get_zdev_by_fid(). Instead callers must not access the device after pcibios_release_device() was called which is necessary for common PCI code anyway. With this though the very similar naming may be misleading so rename get_zdev_by_bus() to zdev_from_bus() emphasizing that we are directly referencing the zdev via the bus. Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> |
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| .. | ||
| Makefile | ||
| pci_bus.c | ||
| pci_bus.h | ||
| pci_clp.c | ||
| pci_debug.c | ||
| pci_dma.c | ||
| pci_event.c | ||
| pci_insn.c | ||
| pci_iov.c | ||
| pci_iov.h | ||
| pci_irq.c | ||
| pci_mmio.c | ||
| pci_sysfs.c | ||
| pci.c | ||