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| author | Bjorn Helgaas <bhelgaas@google.com> | 2014-02-26 11:25:58 -0700 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2014-02-27 10:43:32 -0700 |
| commit | bd064f0a231af336218838474ea45a64f1672190 (patch) | |
| tree | a1deda3444f1c2554e22c6969641352cc2cc8eb1 /drivers/pci/quirks.c | |
| parent | f44116ae881868ab72274df1eff48fdbde9898af (diff) | |
| download | lwn-bd064f0a231af336218838474ea45a64f1672190.tar.gz lwn-bd064f0a231af336218838474ea45a64f1672190.zip | |
PCI: Mark resources as IORESOURCE_UNSET if we can't assign them
When assigning addresses to resources, mark them with IORESOURCE_UNSET
before we start and clear IORESOURCE_UNSET if assignment is successful.
That means that if we print the resource during assignment, we will show
the size, not a meaningless address.
Also, clear IORESOURCE_UNSET if we do assign an address, so we print the
address when it is valid.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/quirks.c')
| -rw-r--r-- | drivers/pci/quirks.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 5cb726c193de..6e596ab77fb9 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -296,6 +296,7 @@ static void quirk_s3_64M(struct pci_dev *dev) struct resource *r = &dev->resource[0]; if ((r->start & 0x3ffffff) || r->end != r->start + 0x3ffffff) { + r->flags |= IORESOURCE_UNSET; r->start = 0; r->end = 0x3ffffff; } @@ -937,6 +938,8 @@ DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_FE_GATE_700C static void quirk_dunord(struct pci_dev *dev) { struct resource *r = &dev->resource [1]; + + r->flags |= IORESOURCE_UNSET; r->start = 0; r->end = 0xffffff; } @@ -1740,6 +1743,7 @@ static void quirk_tc86c001_ide(struct pci_dev *dev) struct resource *r = &dev->resource[0]; if (r->start & 0x8) { + r->flags |= IORESOURCE_UNSET; r->start = 0; r->end = 0xf; } @@ -1769,6 +1773,7 @@ static void quirk_plx_pci9050(struct pci_dev *dev) dev_info(&dev->dev, "Re-allocating PLX PCI 9050 BAR %u to length 256 to avoid bit 7 bug\n", bar); + r->flags |= IORESOURCE_UNSET; r->start = 0; r->end = 0xff; } |