diff options
Diffstat (limited to 'src/device')
| -rw-r--r-- | src/device/device_const.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/device/device_const.c b/src/device/device_const.c index 5143563a87..27197f251c 100644 --- a/src/device/device_const.c +++ b/src/device/device_const.c @@ -24,6 +24,12 @@ DEVTREE_CONST struct device * DEVTREE_CONST all_devices = &dev_root; /** * Given a PCI bus and a devfn number, find the device structure. * + * Note that this function can return the incorrect device prior + * to PCI enumeration because the secondary field of the bus object + * is 0. The failing scenario is determined by the order of the + * devices in all_devices singly-linked list as well as the time + * when this function is called (secondary reflecting topology). + * * @param bus The bus number. * @param devfn A device/function number. * @return Pointer to the device structure (if found), 0 otherwise. |