Messages in this thread | | | Date | Tue, 5 Aug 2008 23:07:45 -0600 | From | Alex Chiang <> | Subject | [PATCH 0/7] Fixups for duplicate slot names |
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* Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>: > > With this change, kobject_init_and_add() called in > pci_create_slot() will show stack trace if a hotplug driver > attempts to register multiple slot with the same name. That is, > stack trace will be shown on the platform that wrongly assing > the physical slot number to multiple slots. I'm very sorry, but > I don't have enough time to consider how to fix it today.
Hello Kenji-san,
You are obviously correct about my prior bad patch that simply removed the check in pci_hp_register() for duplicate names.
I also talked with Willy, and he thought that the proper way to fix all these issues was not in the individual drivers, but in the PCI core, which I agree with.
Here is a patch series that attempts to implement Willy's suggestion.
Patches 1--6 convert the callers of pci_hp_register/pci_create_slot from a static char name[] to a dynamically kmalloc'ed char *name.
There are also cleanups in the individual drivers to remove the _slot_with_bus parameters.
Patch 7/7 implements the collision rename logic. It's not the prettiest thing in the world, so your comments are welcome. :)
It's getting late here and I haven't had time to really test it, other than a quick compile test, but I wanted to try and send it so that you could take a look and possibly try it. ;)
These patches apply on top of Linus's latest tree.
Thanks!
/ac
drivers/acpi/pci_slot.c | 15 ++++++- drivers/pci/hotplug/acpiphp.h | 2 - drivers/pci/hotplug/acpiphp_core.c | 18 +++++---- drivers/pci/hotplug/fakephp.c | 16 ++++++-- drivers/pci/hotplug/pci_hotplug_core.c | 4 -- drivers/pci/hotplug/pciehp.h | 6 +-- drivers/pci/hotplug/pciehp_core.c | 7 --- drivers/pci/hotplug/pciehp_hpc.c | 19 ++++----- drivers/pci/hotplug/pcihp_skeleton.c | 12 ++++-- drivers/pci/hotplug/shpchp.h | 5 +- drivers/pci/hotplug/shpchp_core.c | 29 ++++---------- drivers/pci/slot.c | 65 +++++++++++++++++++++++++++++---- include/linux/pci.h | 3 - 13 files changed, 124 insertions(+), 77 deletions(-)
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