diff options
| -rw-r--r-- | arch/s390/kernel/ptrace.c | 18 |
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, }, |