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| /openbmc/linux/drivers/s390/net/ |
| H A D | qeth_core_main.c | 17bf8c9b Tue Mar 20 01:59:14 CDT 2018 Julian Wiedmann <jwi@linux.vnet.ibm.com> s390/qeth: lock read device while queueing next buffer
For calling ccw_device_start(), issue_next_read() needs to hold the
device's ccwlock.
This is satisfied for the IRQ handler path (where qeth_irq() gets called
under the ccwlock), but we need explicit locking for the initial call by
the MPC initialization.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
17bf8c9b Tue Mar 20 01:59:14 CDT 2018 Julian Wiedmann <jwi@linux.vnet.ibm.com> s390/qeth: lock read device while queueing next buffer
For calling ccw_device_start(), issue_next_read() needs to hold the
device's ccwlock.
This is satisfied for the IRQ handler path (where qeth_irq() gets called
under the ccwlock), but we need explicit locking for the initial call by
the MPC initialization.
Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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