Commit 1af7f056 authored by olof@lixom.net's avatar olof@lixom.net Committed by Jeff Garzik

pasemi_mac: Fix local-mac-address parsing

Turns out we have an old version of firmware that stores the mac address
in 'mac-address' as a string instead of a byte array. All versions that
use local-mac-address should have it as byte array, so no need to do
string parsing for that case.
Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent fd178254
......@@ -85,6 +85,7 @@ static int pasemi_get_mac_addr(struct pasemi_mac *mac)
{
struct pci_dev *pdev = mac->pdev;
struct device_node *dn = pci_device_to_OF_node(pdev);
int len;
const u8 *maddr;
u8 addr[6];
......@@ -94,9 +95,17 @@ static int pasemi_get_mac_addr(struct pasemi_mac *mac)
return -ENOENT;
}
maddr = of_get_property(dn, "local-mac-address", NULL);
maddr = of_get_property(dn, "local-mac-address", &len);
if (maddr && len == 6) {
memcpy(mac->mac_addr, maddr, 6);
return 0;
}
/* Some old versions of firmware mistakenly uses mac-address
* (and as a string) instead of a byte array in local-mac-address.
*/
/* Fall back to mac-address for older firmware */
if (maddr == NULL)
maddr = of_get_property(dn, "mac-address", NULL);
......@@ -106,6 +115,7 @@ static int pasemi_get_mac_addr(struct pasemi_mac *mac)
return -ENOENT;
}
if (sscanf(maddr, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &addr[0],
&addr[1], &addr[2], &addr[3], &addr[4], &addr[5]) != 6) {
dev_warn(&pdev->dev,
......@@ -113,7 +123,8 @@ static int pasemi_get_mac_addr(struct pasemi_mac *mac)
return -EINVAL;
}
memcpy(mac->mac_addr, addr, sizeof(addr));
memcpy(mac->mac_addr, addr, 6);
return 0;
}
......
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