commit ac6639cd3db607d386616487902b4cc1850a7be5 upstream.
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: d0c9d4a8 ("[S390] qdio: set correct bit in dsci")
Signed-off-by: Julian Wiedmann <email@example.com>
Signed-off-by: Vasily Gorbik <firstname.lastname@example.org>
Signed-off-by: Greg Kroah-Hartman <email@example.com>