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authorHeiko Carstens <heiko.carstens@de.ibm.com>2010-02-27 00:37:30 +0300
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2010-02-27 00:37:30 +0300
commitd1bf85902c28dd990c08f1703ea94109223549a7 (patch)
tree47d5fbf81e7568488ab53e24f676ba4a4ab5afef /drivers/s390/cio/chsc.c
parent0d01bb89220490763d89571d27e7ee3f13f9b372 (diff)
downloadlinux-d1bf85902c28dd990c08f1703ea94109223549a7.tar.xz
[S390] cio: fix storage key handling
Some parts of cio do not shift PAGE_DEFAULT_KEY correctly and end up with an incorrect key in their data structures. Since the default key is zero this doesn't really matter. However if somebody would use key-controlled protection for debugging purposes it would be quite helpful if all of this would work as expected. Also remove a stale declaration. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/cio/chsc.c')
-rw-r--r--drivers/s390/cio/chsc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 1ecd3e567648..4038f5b4f144 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -574,7 +574,7 @@ int __chsc_do_secm(struct channel_subsystem *css, int enable, void *page)
secm_area->request.length = 0x0050;
secm_area->request.code = 0x0016;
- secm_area->key = PAGE_DEFAULT_KEY;
+ secm_area->key = PAGE_DEFAULT_KEY >> 4;
secm_area->cub_addr1 = (u64)(unsigned long)css->cub_addr1;
secm_area->cub_addr2 = (u64)(unsigned long)css->cub_addr2;