s390/zcrypt: simplify cca_findcard2 loop code

Browse source

Instead of two times go through the list of available AP devices
(which may be up to 256 * 256 entries) this patch reworks the code do
only run through once.  The price is instead of reporting all possible
devices to the caller only the first 256 devices are collected.
However, having to choose from 256 AP devices is plenty of resources
and should fulfill the caller's requirements. On the other side
the loop code is much simplier and more easy to maintain.

Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Ingo Franzki <ifranzki@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

...

This commit is contained in:

Harald Freudenberger 2020-09-09 12:02:46 +02:00 • committed by Vasily Gorbik

parent 180a4c42e5

commit 0d574ad33e

1 changed files with 58 additions and 63 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

121

drivers/s390/crypto/zcrypt_ccamisc.c

View file