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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: caa1f0b10d ("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>
This commit is contained in:
Alexandra Winter 2019-12-23 15:03:25 +01:00 committed by David S. Miller
parent e8a66d8004
commit d1b9ae1864
1 changed files with 3 additions and 1 deletions
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4
drivers/s390/net/qeth_l2_main.c
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@ -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);