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Reduce excessive pci_get_devid() and pci_get_revid() calls

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on the same PCI device while device probing.
This commit is contained in:
Jung-uk Kim 2009-04-27 18:10:42 +00:00
parent 3257d55783
commit 3388ca6b71
1 changed files with 8 additions and 4 deletions
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12
sys/dev/ata/ata-pci.c
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@ -759,13 +759,17 @@ ata_set_desc(device_t dev)
struct ata_chip_id *
ata_match_chip(device_t dev, struct ata_chip_id *index)
{
uint32_t devid;
uint8_t revid;
devid = pci_get_devid(dev);
revid = pci_get_revid(dev);
while (index->chipid != 0) {
if (pci_get_devid(dev) == index->chipid &&
pci_get_revid(dev) >= index->chiprev)
return index;
if (devid == index->chipid && revid >= index->chiprev)
return (index);
index++;
}
return NULL;
return (NULL);
}
struct ata_chip_id *