Messages in this thread | | | Date | Wed, 3 Jan 2007 00:39:48 +0000 | From | Alan <> | Subject | Re: [PATCH] libata: fix combined mode (was Re: Happy New Year (and v2.6.20-rc3 released)) |
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> Thus, if you avoid calling pci_request_regions (as your patch does), you > must manually provide the same guarantees that pci_request_regions > provides to its callers.
pci_request_regions reserves only BAR4/BAR5 in legacy mode because of the fact the resources are mashed and eventually cleaare by the existing (pre 2.6.20-rc) PCI code. The new code does provide that guarantee which is (unfortunately) precisely why you get the problem - because the combined mode hack currently relies on it failing to do so.
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