diff options
| author | Julian Wiedmann <jwi@linux.ibm.com> | 2019-06-18 14:12:20 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-07-21 10:06:08 +0300 |
| commit | 2aa57f707fe9f187bd731475c1ec85147afc5bdb (patch) | |
| tree | 3f8f19d03e7c10f65a5cf20edbb1e51df28eaa44 /scripts/objdiff | |
| parent | 355dbc42bfb47a9033d740b69c1ea4dcfbe009f8 (diff) | |
| download | linux-2aa57f707fe9f187bd731475c1ec85147afc5bdb.tar.xz | |
s390/qdio: don't touch the dsci in tiqdio_add_input_queues()
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: d0c9d4a89fff ("[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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/objdiff')
0 files changed, 0 insertions, 0 deletions