diff options
| author |   Matt Carlson <mcarlson@broadcom.com> | 2010-02-26 14:04:41 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2010-02-28 00:43:32 -0800 |
| commit | b55ac1b22690d2e5b02a61cf6d69c2d66969c79d (patch) | |
| tree | d336b38719dba482e2734f2091f5a60dfcb134b4 /include | |
| parent | pci: Add large and small resource data type code (diff) | |
| download | linux-dev-b55ac1b22690d2e5b02a61cf6d69c2d66969c79d.tar.xz linux-dev-b55ac1b22690d2e5b02a61cf6d69c2d66969c79d.zip | |
pci: Add helper to find a VPD resource data type
This patch adds the pci_vpd_find_tag() helper function to find VPD
resource data types in a buffer.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/pci.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 198d062640b7..e30ceea7345b 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1395,5 +1395,17 @@ static inline u8 pci_vpd_srdt_size(const u8 *srdt) return (*srdt) & PCI_VPD_SRDT_LEN_MASK; } +/** + * pci_vpd_find_tag - Locates the Resource Data Type tag provided + * @buf: Pointer to buffered vpd data + * @off: The offset into the buffer at which to begin the search + * @len: The length of the vpd buffer + * @rdt: The Resource Data Type to search for + * + * Returns the index where the Resource Data Type was found or + * -ENOENT otherwise. + */ +int pci_vpd_find_tag(const u8 *buf, unsigned int off, unsigned int len, u8 rdt); + #endif /* __KERNEL__ */ #endif /* LINUX_PCI_H */ |