diff options
| author | Zhao, Yu <yu.zhao@intel.com> | 2008-10-13 13:18:07 +0200 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2008-10-20 19:54:29 +0200 |
| commit | 557848c3c03ad1d1e66cb3b5b06698e3a9ebc33c (patch) | |
| tree | f244d69c332d3bbbef9f924fb1f0892abba7e1ff /drivers/pci/pci.c | |
| parent | PCI: use resource_size() everywhere. (diff) | |
| download | linux-557848c3c03ad1d1e66cb3b5b06698e3a9ebc33c.tar.xz linux-557848c3c03ad1d1e66cb3b5b06698e3a9ebc33c.zip | |
PCI: replace cfg space size (256/4096) by macros.
This is a cleanup that changes all PCI configuration space size
representations to the macros (PCI_CFG_SPACE_SIZE and
PCI_CFG_SPACE_EXP_SIZE). And the macros are also moved from
drivers/pci/probe.c to drivers/pci/pci.h.
Signed-off-by: Yu Zhao <yu.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 09dc893c81db..553ca6657955 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -213,10 +213,13 @@ int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap) int pci_find_ext_capability(struct pci_dev *dev, int cap) { u32 header; - int ttl = 480; /* 3840 bytes, minimum 8 bytes per capability */ - int pos = 0x100; + int ttl; + int pos = PCI_CFG_SPACE_SIZE; - if (dev->cfg_size <= 256) + /* minimum 8 bytes per capability */ + ttl = (PCI_CFG_SPACE_EXP_SIZE - PCI_CFG_SPACE_SIZE) / 8; + + if (dev->cfg_size <= PCI_CFG_SPACE_SIZE) return 0; if (pci_read_config_dword(dev, pos, &header) != PCIBIOS_SUCCESSFUL) @@ -234,7 +237,7 @@ int pci_find_ext_capability(struct pci_dev *dev, int cap) return pos; pos = PCI_EXT_CAP_NEXT(header); - if (pos < 0x100) + if (pos < PCI_CFG_SPACE_SIZE) break; if (pci_read_config_dword(dev, pos, &header) != PCIBIOS_SUCCESSFUL) |