s390/qeth: remove duplicated carrier state tracking

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The netdevice is always available, apply any carrier state changes to it
without caching them.
On a STARTLAN event (ie. carrier-up), defer updating the state to
qeth_core_hardsetup_card() in the subsequent recovery action.

Also remove the carrier-state checks from the xmit routines. Stopping
transmission on carrier-down is the responsibility of upper-level code
(eg see dev_direct_xmit()).

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

Julian Wiedmann 2018-09-26 18:29:16 +02:00 • committed by David S. Miller

parent d782d80f36

commit 91cc98f51e

5 changed files with 10 additions and 22 deletions

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1

drivers/s390/net/qeth_core.h

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12

drivers/s390/net/qeth_core_main.c

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7

drivers/s390/net/qeth_core_sys.c

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6

drivers/s390/net/qeth_l2_main.c

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6

drivers/s390/net/qeth_l3_main.c

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