s390/qeth: vnicc Fix init to default

During vnicc_init wanted_char should be compared to cur_char and not
to QETH_VNICC_DEFAULT. Without this patch there is no way to enforce
the default values as desired values.

Note, that it is expected, that a card comes online with default values.
This patch was tested with private card firmware.

Fixes: caa1f0b10d18 ("s390/qeth: add VNICC enable/disable support")
Signed-off-by: Alexandra Winter <wintera@linux.ibm.com>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index 8024a21..47d37e7 100644 (file)
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -2039,7 +2039,9 @@ static void qeth_l2_vnicc_init(struct qeth_card *card)
        /* enforce assumed default values and recover settings, if changed  */
        error |= qeth_l2_vnicc_recover_timeout(card, QETH_VNICC_LEARNING,
                                               timeout);
-       chars_tmp = card->options.vnicc.wanted_chars ^ QETH_VNICC_DEFAULT;
+       /* Change chars, if necessary  */
+       chars_tmp = card->options.vnicc.wanted_chars ^
+                   card->options.vnicc.cur_chars;
        chars_len = sizeof(card->options.vnicc.wanted_chars) * BITS_PER_BYTE;
        for_each_set_bit(i, &chars_tmp, chars_len) {
                vnicc = BIT(i);