kernel_optimize_test/drivers/s390
Julian Wiedmann ac6639cd3d s390/qdio: don't touch the dsci in tiqdio_add_input_queues()
Current code sets the dsci to 0x00000080. Which doesn't make any sense,
as the indicator area is located in the _left-most_ byte.

Worse: if the dsci is the _shared_ indicator, this potentially clears
the indication of activity for a _different_ device.
tiqdio_thinint_handler() will then have no reason to call that device's
IRQ handler, and the device ends up stalling.

Fixes: d0c9d4a89f ("[S390] qdio: set correct bit in dsci")
Cc: <stable@vger.kernel.org>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2019-07-02 16:00:27 +02:00
..
block s390/dasd: Fix a precision vs width bug in dasd_feature_list() 2019-07-02 16:00:26 +02:00
char s390/sclp: remove call home support 2019-06-19 17:54:27 +02:00
cio s390/qdio: don't touch the dsci in tiqdio_add_input_queues() 2019-07-02 16:00:27 +02:00
crypto s390/pkey: Use -ENODEV instead of -EOPNOTSUPP 2019-06-15 12:24:36 +02:00
net s390/Kconfig: pedantic cleanups 2019-06-04 15:03:46 +02:00
scsi scsi: zfcp: fix to prevent port_remove with pure auto scan LUNs (only sdevs) 2019-05-29 21:52:31 -04:00
virtio virtio/s390: make airq summary indicators DMA 2019-06-15 12:25:41 +02:00
Makefile