Messages in this thread |  | | | Date | Fri, 3 Feb 2012 18:30:42 -0800 | | Subject | Re: [PATCH 02/15] PCI: Add iobusn_resource | | From | Yinghai Lu <> |
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On Fri, Feb 3, 2012 at 3:38 PM, Benjamin Herrenschmidt <benh@kernel.crashing.org> wrote: > On Fri, 2012-02-03 at 08:36 -0800, Bjorn Helgaas wrote: >> On Wed, Feb 1, 2012 at 2:43 PM, Yinghai Lu <yinghai@kernel.org> wrote: >> > also add busn_res into struct pci_bus. >> > >> > will use them to have bus number resource tree. >> >> Will you make this tree visible in /proc? Seems like that would be >> useful for debugging and for symmetry with /proc/iomem and >> /proc/ioports. > > To be honest that whole business with bus numbers in struct resource > seems like gratuituous bloat & over engineering to me ...
ah, i thought it is simple enough, and should be done before already.
> Does it actually solve a specific problem or serve a purpose ?
very beginning is for one IBM x3950...
https://bugzilla.novell.com/show_bug.cgi?id=735909
++max searching valid bus number range is out of boundary of peer root bus range.
later, found the code could help: pcie hotplug, pci bus rescan and even remove some hacks for/from cardbus field.
now with this patchset (+ one patch that is not sent out yet), I could even use setpci/pci rescan to move pci bus around.
Thanks
Yinghai -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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