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Diffstat (limited to 'arch/x86/kernel/microcode.c')
-rw-r--r--arch/x86/kernel/microcode.c17
1 files changed, 5 insertions, 12 deletions
diff --git a/arch/x86/kernel/microcode.c b/arch/x86/kernel/microcode.c
index 6994c751590e..652fa5c38ebe 100644
--- a/arch/x86/kernel/microcode.c
+++ b/arch/x86/kernel/microcode.c
@@ -388,7 +388,6 @@ static int do_microcode_update (void)
388 void *new_mc = NULL; 388 void *new_mc = NULL;
389 int cpu; 389 int cpu;
390 cpumask_t old; 390 cpumask_t old;
391 cpumask_of_cpu_ptr_declare(newmask);
392 391
393 old = current->cpus_allowed; 392 old = current->cpus_allowed;
394 393
@@ -405,8 +404,7 @@ static int do_microcode_update (void)
405 404
406 if (!uci->valid) 405 if (!uci->valid)
407 continue; 406 continue;
408 cpumask_of_cpu_ptr_next(newmask, cpu); 407 set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
409 set_cpus_allowed_ptr(current, newmask);
410 error = get_maching_microcode(new_mc, cpu); 408 error = get_maching_microcode(new_mc, cpu);
411 if (error < 0) 409 if (error < 0)
412 goto out; 410 goto out;
@@ -576,7 +574,6 @@ static int apply_microcode_check_cpu(int cpu)
576 struct cpuinfo_x86 *c = &cpu_data(cpu); 574 struct cpuinfo_x86 *c = &cpu_data(cpu);
577 struct ucode_cpu_info *uci = ucode_cpu_info + cpu; 575 struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
578 cpumask_t old; 576 cpumask_t old;
579 cpumask_of_cpu_ptr(newmask, cpu);
580 unsigned int val[2]; 577 unsigned int val[2];
581 int err = 0; 578 int err = 0;
582 579
@@ -585,7 +582,7 @@ static int apply_microcode_check_cpu(int cpu)
585 return 0; 582 return 0;
586 583
587 old = current->cpus_allowed; 584 old = current->cpus_allowed;
588 set_cpus_allowed_ptr(current, newmask); 585 set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
589 586
590 /* Check if the microcode we have in memory matches the CPU */ 587 /* Check if the microcode we have in memory matches the CPU */
591 if (c->x86_vendor != X86_VENDOR_INTEL || c->x86 < 6 || 588 if (c->x86_vendor != X86_VENDOR_INTEL || c->x86 < 6 ||
@@ -623,12 +620,11 @@ static int apply_microcode_check_cpu(int cpu)
623static void microcode_init_cpu(int cpu, int resume) 620static void microcode_init_cpu(int cpu, int resume)
624{ 621{
625 cpumask_t old; 622 cpumask_t old;
626 cpumask_of_cpu_ptr(newmask, cpu);
627 struct ucode_cpu_info *uci = ucode_cpu_info + cpu; 623 struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
628 624
629 old = current->cpus_allowed; 625 old = current->cpus_allowed;
630 626
631 set_cpus_allowed_ptr(current, newmask); 627 set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
632 mutex_lock(&microcode_mutex); 628 mutex_lock(&microcode_mutex);
633 collect_cpu_info(cpu); 629 collect_cpu_info(cpu);
634 if (uci->valid && system_state == SYSTEM_RUNNING && !resume) 630 if (uci->valid && system_state == SYSTEM_RUNNING && !resume)
@@ -661,13 +657,10 @@ static ssize_t reload_store(struct sys_device *dev,
661 if (end == buf) 657 if (end == buf)
662 return -EINVAL; 658 return -EINVAL;
663 if (val == 1) { 659 if (val == 1) {
664 cpumask_t old; 660 cpumask_t old = current->cpus_allowed;
665 cpumask_of_cpu_ptr(newmask, cpu);
666
667 old = current->cpus_allowed;
668 661
669 get_online_cpus(); 662 get_online_cpus();
670 set_cpus_allowed_ptr(current, newmask); 663 set_cpus_allowed_ptr(current, &cpumask_of_cpu(cpu));
671 664
672 mutex_lock(&microcode_mutex); 665 mutex_lock(&microcode_mutex);
673 if (uci->valid) 666 if (uci->valid)