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(parent: 2a7cf35) | patch
s390/qdio: keep track of allocated queue count
authorJulian Wiedmann <jwi@linux.ibm.com>
Thu, 2 Apr 2020 21:48:00 +0000 (23:48 +0200)
committerVasily Gorbik <gor@linux.ibm.com>
Tue, 28 Apr 2020 11:49:48 +0000 (13:49 +0200)
commitd188cac39753c8419d2b168436a632711896ea4e
tree5b29c13e6f12be9a4af1ebdfa752092c78075805tree | snapshot
parent2a7cf35c4056facd35c952e8000519034376eef7commit | diff
s390/qdio: keep track of allocated queue count

Knowing how many queues we initially allocated allows us to
1) sanity-check a subsequent qdio_establish() request, and
2) walk the queue arrays without further checks. Apply this while
   cleanly splitting qdio_free_queues() into two separate helpers.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Steffen Maier <maier@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
drivers/s390/cio/qdio.h diff | blob | history
drivers/s390/cio/qdio_main.c diff | blob | history
drivers/s390/cio/qdio_setup.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git