tjh.dev
+11
-7
arch/s390/include/asm/stacktrace.h
+11
-7
arch/s390/include/asm/stacktrace.h
···
91
91
CALL_ARGS_4(arg1, arg2, arg3, arg4); \
92
92
register unsigned long r4 asm("6") = (unsigned long)(arg5)
93
93
94
-
#define CALL_FMT_0 "=&d" (r2) :
95
-
#define CALL_FMT_1 "+&d" (r2) :
96
-
#define CALL_FMT_2 CALL_FMT_1 "d" (r3),
97
-
#define CALL_FMT_3 CALL_FMT_2 "d" (r4),
98
-
#define CALL_FMT_4 CALL_FMT_3 "d" (r5),
99
-
#define CALL_FMT_5 CALL_FMT_4 "d" (r6),
94
+
/*
95
+
* To keep this simple mark register 2-6 as being changed (volatile)
96
+
* by the called function, even though register 6 is saved/nonvolatile.
97
+
*/
98
+
#define CALL_FMT_0 "=&d" (r2)
99
+
#define CALL_FMT_1 "+&d" (r2)
100
+
#define CALL_FMT_2 CALL_FMT_1, "+&d" (r3)
101
+
#define CALL_FMT_3 CALL_FMT_2, "+&d" (r4)
102
+
#define CALL_FMT_4 CALL_FMT_3, "+&d" (r5)
103
+
#define CALL_FMT_5 CALL_FMT_4, "+&d" (r6)
100
104
101
105
#define CALL_CLOBBER_5 "0", "1", "14", "cc", "memory"
102
106
#define CALL_CLOBBER_4 CALL_CLOBBER_5
···
122
118
" brasl 14,%[_fn]\n" \
123
119
" la 15,0(%[_prev])\n" \
124
120
: [_prev] "=&a" (prev), CALL_FMT_##nr \
125
-
[_stack] "R" (stack), \
121
+
: [_stack] "R" (stack), \
126
122
[_bc] "i" (offsetof(struct stack_frame, back_chain)), \
127
123
[_frame] "d" (frame), \
128
124
[_fn] "X" (fn) : CALL_CLOBBER_##nr); \
+1
arch/s390/kernel/entry.S
+1
arch/s390/kernel/entry.S
-1
arch/s390/kernel/signal.c
-1
arch/s390/kernel/signal.c
···
512
512
513
513
/* No handlers present - check for system call restart */
514
514
clear_pt_regs_flag(regs, PIF_SYSCALL);
515
-
clear_pt_regs_flag(regs, PIF_SYSCALL_RESTART);
516
515
if (current->thread.system_call) {
517
516
regs->int_code = current->thread.system_call;
518
517
switch (regs->gprs[2]) {
+9
-3
arch/s390/kernel/topology.c
+9
-3
arch/s390/kernel/topology.c
···
66
66
{
67
67
static cpumask_t mask;
68
68
69
-
cpumask_copy(&mask, cpumask_of(cpu));
69
+
cpumask_clear(&mask);
70
+
if (!cpu_online(cpu))
71
+
goto out;
72
+
cpumask_set_cpu(cpu, &mask);
70
73
switch (topology_mode) {
71
74
case TOPOLOGY_MODE_HW:
72
75
while (info) {
···
86
83
default:
87
84
fallthrough;
88
85
case TOPOLOGY_MODE_SINGLE:
89
-
cpumask_copy(&mask, cpumask_of(cpu));
90
86
break;
91
87
}
92
88
cpumask_and(&mask, &mask, cpu_online_mask);
89
+
out:
93
90
cpumask_copy(dst, &mask);
94
91
}
95
92
···
98
95
static cpumask_t mask;
99
96
int i;
100
97
101
-
cpumask_copy(&mask, cpumask_of(cpu));
98
+
cpumask_clear(&mask);
99
+
if (!cpu_online(cpu))
100
+
goto out;
101
+
cpumask_set_cpu(cpu, &mask);
102
102
if (topology_mode != TOPOLOGY_MODE_HW)
103
103
goto out;
104
104
cpu -= cpu % (smp_cpu_mtid + 1);
-10
drivers/s390/crypto/vfio_ap_ops.c
-10
drivers/s390/crypto/vfio_ap_ops.c
···
366
366
struct ap_matrix_mdev *matrix_mdev = mdev_get_drvdata(mdev);
367
367
368
368
mutex_lock(&matrix_dev->lock);
369
-
370
-
/*
371
-
* If the KVM pointer is in flux or the guest is running, disallow
372
-
* un-assignment of control domain.
373
-
*/
374
-
if (matrix_mdev->kvm_busy || matrix_mdev->kvm) {
375
-
mutex_unlock(&matrix_dev->lock);
376
-
return -EBUSY;
377
-
}
378
-
379
369
vfio_ap_mdev_reset_queues(mdev);
380
370
list_del(&matrix_mdev->node);
381
371
kfree(matrix_mdev);