On 9/22/26 4:15 PM, Eric Farman wrote: > The channel subsystem will reject channel programs that incorporate > 256 CCWs without a data transfer, but the existing check to account > for this only does so for CCWs with a data address of zero. Other > valid CCWs that wouldn't transfer data are not accounted for. > > Rather than re-inventing the wheel, use the output of the datastream > at the end of the entire CCW parsing tree to indicate whether data > was moved or not. > > Cc: [email protected] > Fixes: e8601dd5d0 ("s390x/css: catch ccw sequence errors") > Signed-off-by: Eric Farman <[email protected]>
Reviewed-by: Matthew Rosato <[email protected]>
