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s390/qeth: simplify DOWN state handling

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When the tear down sequence in qeth_l?_stop_card() has finished, the
card is guaranteed to be in DOWN state and we don't have to check for
it again.
With this insight we can also remove the redundant setting of
card->state in qeth_l?_set_online()'s error path.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Julian Wiedmann 2019-06-11 18:37:50 +02:00 • committed by David S. Miller
parent 4e2fe4edca
commit ad16087222
2 changed files with 4 additions and 10 deletions
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7
drivers/s390/net/qeth_l2_main.c
View file

@ -292,11 +292,9 @@ static void qeth_l2_stop_card(struct qeth_card *card)
qeth_clear_working_pool_list(card);
card->state = CARD_STATE_DOWN;
}
if (card->state == CARD_STATE_DOWN) {
qeth_clear_cmd_buffers(&card->read);
qeth_clear_cmd_buffers(&card->write);
}
qeth_clear_cmd_buffers(&card->read);
qeth_clear_cmd_buffers(&card->write);
flush_workqueue(card->event_wq);
card->info.mac_bits &= ~QETH_LAYER2_MAC_REGISTERED;
}
@ -882,7 +880,6 @@ out_remove:
ccw_device_set_offline(CARD_WDEV(card));
ccw_device_set_offline(CARD_RDEV(card));
qdio_free(CARD_DDEV(card));
card->state = CARD_STATE_DOWN;
mutex_unlock(&card->conf_mutex);
mutex_unlock(&card->discipline_mutex);

7
drivers/s390/net/qeth_l3_main.c
View file

@ -1436,11 +1436,9 @@ static void qeth_l3_stop_card(struct qeth_card *card)
qeth_clear_working_pool_list(card);
card->state = CARD_STATE_DOWN;
}
if (card->state == CARD_STATE_DOWN) {
qeth_clear_cmd_buffers(&card->read);
qeth_clear_cmd_buffers(&card->write);
}
qeth_clear_cmd_buffers(&card->read);
qeth_clear_cmd_buffers(&card->write);
flush_workqueue(card->event_wq);
}
@ -2420,7 +2418,6 @@ out_remove:
ccw_device_set_offline(CARD_WDEV(card));
ccw_device_set_offline(CARD_RDEV(card));
qdio_free(CARD_DDEV(card));
card->state = CARD_STATE_DOWN;
mutex_unlock(&card->conf_mutex);
mutex_unlock(&card->discipline_mutex);