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PCI hotplug: create symlink to hotplug driver module

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Create symbolic link to hotplug driver module in the PCI slot
directory (/sys/bus/pci/slots/<SLOT#>). In the past, we need to load
hotplug drivers one by one to identify the hotplug driver that handles
the slot, and it was very inconvenient especially for trouble shooting.
With this change, we can easily identify the hotplug driver.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Reviewed-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Kenji Kaneshige 2009-06-16 11:01:25 +09:00 • committed by Jesse Barnes
parent 498a8faf2c
commit c825bc94c8
5 changed files with 80 additions and 9 deletions
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5
include/linux/pci.h
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@ -1261,5 +1261,10 @@ static inline irqreturn_t pci_sriov_migration(struct pci_dev *dev)
}
#endif
#if defined(CONFIG_HOTPLUG_PCI) || defined(CONFIG_HOTPLUG_PCI_MODULE)
extern void pci_hp_create_module_link(struct pci_slot *pci_slot);
extern void pci_hp_remove_module_link(struct pci_slot *pci_slot);
#endif
#endif /* __KERNEL__ */
#endif /* LINUX_PCI_H */