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| author |   Alex Williamson <alex.williamson@redhat.com> | 2012-06-11 05:27:33 +0000 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2012-06-12 09:21:42 -0600 |
| commit | a6961651408afa9387d6df43c4a1dc4fd35dcb1b (patch) | |
| tree | 3ee93b9316123567ebfc65804cb8cc1be95be1e2 /include/linux/pci.h | |
| parent | PCI: export pci_user functions for use by other drivers (diff) | |
| download | linux-dev-a6961651408afa9387d6df43c4a1dc4fd35dcb1b.tar.xz linux-dev-a6961651408afa9387d6df43c4a1dc4fd35dcb1b.zip | |
PCI: create common pcibios_err_to_errno
For returning errors out to non-PCI code. Re-name xen's version.
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include/linux/pci.h')
| -rw-r--r-- | include/linux/pci.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 9d04599c6bd9..a691f62bcf89 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -474,6 +474,32 @@ static inline bool pci_dev_msi_enabled(struct pci_dev *pci_dev) { return false; #define PCIBIOS_SET_FAILED 0x88 #define PCIBIOS_BUFFER_TOO_SMALL 0x89 +/* + * Translate above to generic errno for passing back through non-pci. + */ +static inline int pcibios_err_to_errno(int err) +{ + if (err <= PCIBIOS_SUCCESSFUL) + return err; /* Assume already errno */ + + switch (err) { + case PCIBIOS_FUNC_NOT_SUPPORTED: + return -ENOENT; + case PCIBIOS_BAD_VENDOR_ID: + return -EINVAL; + case PCIBIOS_DEVICE_NOT_FOUND: + return -ENODEV; + case PCIBIOS_BAD_REGISTER_NUMBER: + return -EFAULT; + case PCIBIOS_SET_FAILED: + return -EIO; + case PCIBIOS_BUFFER_TOO_SMALL: + return -ENOSPC; + } + + return -ENOTTY; +} + /* Low-level architecture-dependent routines */ struct pci_ops { |