From: Yinghai Lu Date: Sun, 4 Nov 2012 04:39:30 +0000 (-0700) Subject: x86/PCI: Implement pcibios_resource_survey_bus() X-Git-Tag: v3.9-rc1~82^2~12^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b3e65e1f9185a2eb034defe4270ba178ba70b9a9;p=pandora-kernel.git x86/PCI: Implement pcibios_resource_survey_bus() During testing remove/rescan root bus 00, found [ 338.142574] bus: 'pci': really_probe: probing driver ata_piix with device 0000:00:01.1 [ 338.146788] ata_piix 0000:00:01.1: device not available (can't reserve [io 0x01f0-0x01f7]) [ 338.150565] ata_piix: probe of 0000:00:01.1 failed with error -22 because that fixed resource is not claimed. For bootint path it is claimed in from arch/x86/pci/i386.c::pcibios_allocate_resources() Claim those resources, so on the remove/rescan will still use old resources. It is some kind honoring FW setting in the registers during hot add. esp root-bus hot add is through acpi, BIOS has chance to set some registers before handing over. [bhelgaas: move weak definition to patch that uses it] Signed-off-by: Yinghai Lu Signed-off-by: Bjorn Helgaas --- Reading git-diff-tree failed