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authorHeiko Carstens <hca@linux.ibm.com>2023-09-11 22:40:04 +0300
committerVasily Gorbik <gor@linux.ibm.com>2023-09-19 14:26:56 +0300
commit527618abb92793b9d4dba548d55822dcebd95317 (patch)
treea33943001b1f0134ffc09e4cf0ecf1d267e44779 /arch/s390/boot
parentecc53818f60447177e24ea11b7f136c405150976 (diff)
downloadlinux-527618abb92793b9d4dba548d55822dcebd95317.tar.xz
s390/ctlreg: add struct ctlreg
Add struct ctlreg to enforce strict type checking / usage for control register functions. Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/boot')
-rw-r--r--arch/s390/boot/vmem.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/s390/boot/vmem.c b/arch/s390/boot/vmem.c
index 44278ae2512f..bdbfee86d1ac 100644
--- a/arch/s390/boot/vmem.c
+++ b/arch/s390/boot/vmem.c
@@ -12,7 +12,7 @@
#include "decompressor.h"
#include "boot.h"
-unsigned long __bootdata_preserved(s390_invalid_asce);
+struct ctlreg __bootdata_preserved(s390_invalid_asce);
#ifdef CONFIG_PROC_FS
atomic_long_t __bootdata_preserved(direct_pages_count[PG_DIRECT_MAP_MAX]);
@@ -422,7 +422,7 @@ void setup_vmem(unsigned long asce_limit)
asce_type = _REGION3_ENTRY_EMPTY;
asce_bits = _ASCE_TYPE_REGION3 | _ASCE_TABLE_LENGTH;
}
- s390_invalid_asce = invalid_pg_dir | _ASCE_TYPE_REGION3 | _ASCE_TABLE_LENGTH;
+ s390_invalid_asce.val = invalid_pg_dir | _ASCE_TYPE_REGION3 | _ASCE_TABLE_LENGTH;
crst_table_init((unsigned long *)swapper_pg_dir, asce_type);
crst_table_init((unsigned long *)invalid_pg_dir, _REGION3_ENTRY_EMPTY);
@@ -443,12 +443,12 @@ void setup_vmem(unsigned long asce_limit)
kasan_populate_shadow();
- S390_lowcore.kernel_asce = swapper_pg_dir | asce_bits;
+ S390_lowcore.kernel_asce.val = swapper_pg_dir | asce_bits;
S390_lowcore.user_asce = s390_invalid_asce;
local_ctl_load(1, &S390_lowcore.kernel_asce);
local_ctl_load(7, &S390_lowcore.user_asce);
local_ctl_load(13, &S390_lowcore.kernel_asce);
- init_mm.context.asce = S390_lowcore.kernel_asce;
+ init_mm.context.asce = S390_lowcore.kernel_asce.val;
}