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-rw-r--r--arch/s390/kernel/ptrace.c18
1 files changed, 8 insertions, 10 deletions
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 9eed6bb5c4a9..eabfb4594517 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -1091,12 +1091,6 @@ static int s390_tdb_set(struct task_struct *target,
return 0;
}
-static int s390_vxrs_active(struct task_struct *target,
- const struct user_regset *regset)
-{
- return !!target->thread.vxrs;
-}
-
static int s390_vxrs_low_get(struct task_struct *target,
const struct user_regset *regset,
unsigned int pos, unsigned int count,
@@ -1105,6 +1099,8 @@ static int s390_vxrs_low_get(struct task_struct *target,
__u64 vxrs[__NUM_VXRS_LOW];
int i;
+ if (!MACHINE_HAS_VX)
+ return -ENODEV;
if (target->thread.vxrs) {
if (target == current)
save_vx_regs(target->thread.vxrs);
@@ -1123,6 +1119,8 @@ static int s390_vxrs_low_set(struct task_struct *target,
__u64 vxrs[__NUM_VXRS_LOW];
int i, rc;
+ if (!MACHINE_HAS_VX)
+ return -ENODEV;
if (!target->thread.vxrs) {
rc = alloc_vector_registers(target);
if (rc)
@@ -1148,6 +1146,8 @@ static int s390_vxrs_high_get(struct task_struct *target,
{
__vector128 vxrs[__NUM_VXRS_HIGH];
+ if (!MACHINE_HAS_VX)
+ return -ENODEV;
if (target->thread.vxrs) {
if (target == current)
save_vx_regs(target->thread.vxrs);
@@ -1165,6 +1165,8 @@ static int s390_vxrs_high_set(struct task_struct *target,
{
int rc;
+ if (!MACHINE_HAS_VX)
+ return -ENODEV;
if (!target->thread.vxrs) {
rc = alloc_vector_registers(target);
if (rc)
@@ -1249,7 +1251,6 @@ static const struct user_regset s390_regsets[] = {
.n = __NUM_VXRS_LOW,
.size = sizeof(__u64),
.align = sizeof(__u64),
- .active = s390_vxrs_active,
.get = s390_vxrs_low_get,
.set = s390_vxrs_low_set,
},
@@ -1258,7 +1259,6 @@ static const struct user_regset s390_regsets[] = {
.n = __NUM_VXRS_HIGH,
.size = sizeof(__vector128),
.align = sizeof(__vector128),
- .active = s390_vxrs_active,
.get = s390_vxrs_high_get,
.set = s390_vxrs_high_set,
},
@@ -1472,7 +1472,6 @@ static const struct user_regset s390_compat_regsets[] = {
.n = __NUM_VXRS_LOW,
.size = sizeof(__u64),
.align = sizeof(__u64),
- .active = s390_vxrs_active,
.get = s390_vxrs_low_get,
.set = s390_vxrs_low_set,
},
@@ -1481,7 +1480,6 @@ static const struct user_regset s390_compat_regsets[] = {
.n = __NUM_VXRS_HIGH,
.size = sizeof(__vector128),
.align = sizeof(__vector128),
- .active = s390_vxrs_active,
.get = s390_vxrs_high_get,
.set = s390_vxrs_high_set,
},