Author: jkim
Date: Mon Apr 27 18:10:42 2009
New Revision: 191573
URL: http://svn.freebsd.org/changeset/base/191573
Log:
Reduce excessive pci_get_devid() and pci_get_revid() calls
on the same PCI device while device probing.
Modified:
head/sys/dev/ata/ata-pci.c
Modified: head/sys/dev/ata/ata-pci.c
==============================================================================
--- head/sys/dev/ata/ata-pci.c Mon Apr 27 17:42:02 2009 (r191572)
+++ head/sys/dev/ata/ata-pci.c Mon Apr 27 18:10:42 2009 (r191573)
@@ -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 *
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