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author | Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2016-06-23 11:36:22 +0100 |
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committer | Bjorn Helgaas <bhelgaas@google.com> | 2016-06-23 16:29:44 -0500 |
commit | b30742aa307ac9d7db846c0823685e064dc66aaf (patch) | |
tree | 1371529657abbb49d590a1c803ef7f2f1db041f0 /arch/mips | |
parent | dcce0f153b63412291db4c5c5f714404a6e4f7a1 (diff) | |
download | linux-b30742aa307ac9d7db846c0823685e064dc66aaf.tar.gz linux-b30742aa307ac9d7db846c0823685e064dc66aaf.tar.bz2 linux-b30742aa307ac9d7db846c0823685e064dc66aaf.zip |
ARM/PCI: Claim bus resources on PCI_PROBE_ONLY set-ups
We claim PCI BAR and bridge window resources in pci_bus_assign_resources(),
but when PCI_PROBE_ONLY is set, we treat those resources as immutable and
don't call pci_bus_assign_resources(), so the resources aren't put in the
resource tree.
When the resources aren't in the tree, they don't show up in /proc/iomem,
we can't detect conflicts, and we need special cases elsewhere for
PCI_PROBE_ONLY or resources without a parent pointer.
Claim all PCI BAR and window resources in the PCI_PROBE_ONLY case.
If a PCI_PROBE_ONLY platform assigns conflicting resources, Linux can't fix
the conflicts. Previously we didn't notice the conflicts, but now we will,
which may expose new failures.
[bhelgaas: changelog, add resource comment, remove size/assign comments]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Russell King <linux@armlinux.org.uk>
Diffstat (limited to 'arch/mips')
0 files changed, 0 insertions, 0 deletions