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| author |   Ingo Molnar <mingo@kernel.org> | 2016-11-13 08:16:40 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-11-13 08:16:40 +0100 |
| commit | 74239ac259519a98f4c32439326afe7e7eb64459 (patch) | |
| tree | a3e9a1ae0dc6634e7aa669c8881e425634094257 /drivers/pci/setup-res.c | |
| parent | efi/efivar_ssdt_load: Don't return success on allocation failure (diff) | |
| parent | Merge tag 'acpi-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm (diff) | |
| download | linux-dev-74239ac259519a98f4c32439326afe7e7eb64459.tar.xz linux-dev-74239ac259519a98f4c32439326afe7e7eb64459.zip | |
Merge branch 'linus' into efi/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/pci/setup-res.c')
| -rw-r--r-- | drivers/pci/setup-res.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index 66c4d8f42233..9526e341988b 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -121,6 +121,14 @@ int pci_claim_resource(struct pci_dev *dev, int resource) return -EINVAL; } + /* + * If we have a shadow copy in RAM, the PCI device doesn't respond + * to the shadow range, so we don't need to claim it, and upstream + * bridges don't need to route the range to the device. + */ + if (res->flags & IORESOURCE_ROM_SHADOW) + return 0; + root = pci_find_parent_resource(dev, res); if (!root) { dev_info(&dev->dev, "can't claim BAR %d %pR: no compatible bridge window\n", |