forcedeth: run loopback test only on chipsets that support it

The driver incorrectly run loopback test on chips that don't support it.
Loopback test is only supported by chips that has DEV_HAS_TEST_EXTENDED
flag and returns 4 (NV_TEST_COUNT_EXTENDED) as test count.

Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ivan Vecera 2013-12-04 18:06:51 +01:00 committed by David S. Miller
parent 89015c18ff
commit 86d9be263a
1 changed files with 5 additions and 3 deletions

View File

@ -5150,8 +5150,10 @@ static void nv_self_test(struct net_device *dev, struct ethtool_test *test, u64
{
struct fe_priv *np = netdev_priv(dev);
u8 __iomem *base = get_hwbase(dev);
int result;
memset(buffer, 0, nv_get_sset_count(dev, ETH_SS_TEST)*sizeof(u64));
int result, count;
count = nv_get_sset_count(dev, ETH_SS_TEST);
memset(buffer, 0, count * sizeof(u64));
if (!nv_link_test(dev)) {
test->flags |= ETH_TEST_FL_FAILED;
@ -5195,7 +5197,7 @@ static void nv_self_test(struct net_device *dev, struct ethtool_test *test, u64
return;
}
if (!nv_loopback_test(dev)) {
if (count > NV_TEST_COUNT_BASE && !nv_loopback_test(dev)) {
test->flags |= ETH_TEST_FL_FAILED;
buffer[3] = 1;
}