summaryrefslogtreecommitdiff
path: root/arch/x86
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/kernel/apic/io_apic.c10
-rw-r--r--arch/x86/kernel/apic/msi.c18
-rw-r--r--arch/x86/kernel/apic/vector.c1
-rw-r--r--arch/x86/kernel/i8259.c2
-rw-r--r--arch/x86/kernel/stacktrace.c5
-rw-r--r--arch/x86/kernel/unwind_orc.c8
-rw-r--r--arch/x86/kernel/vmlinux.lds.S1
-rw-r--r--arch/x86/kvm/lapic.c2
-rw-r--r--arch/x86/math-emu/wm_sqrt.S2
-rw-r--r--arch/x86/platform/uv/uv_irq.c3
10 files changed, 29 insertions, 23 deletions
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index f0262cb5657a..16699101fd2f 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2329,12 +2329,12 @@ static int mp_irqdomain_create(int ioapic)
ip->irqdomain = irq_domain_create_linear(fn, hwirqs, cfg->ops,
(void *)(long)ioapic);
- /* Release fw handle if it was allocated above */
- if (!cfg->dev)
- irq_domain_free_fwnode(fn);
-
- if (!ip->irqdomain)
+ if (!ip->irqdomain) {
+ /* Release fw handle if it was allocated above */
+ if (!cfg->dev)
+ irq_domain_free_fwnode(fn);
return -ENOMEM;
+ }
ip->irqdomain->parent = parent;
diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
index 159bd0cb8548..a20873bbbed6 100644
--- a/arch/x86/kernel/apic/msi.c
+++ b/arch/x86/kernel/apic/msi.c
@@ -262,12 +262,13 @@ void __init arch_init_msi_domain(struct irq_domain *parent)
msi_default_domain =
pci_msi_create_irq_domain(fn, &pci_msi_domain_info,
parent);
- irq_domain_free_fwnode(fn);
}
- if (!msi_default_domain)
+ if (!msi_default_domain) {
+ irq_domain_free_fwnode(fn);
pr_warn("failed to initialize irqdomain for MSI/MSI-x.\n");
- else
+ } else {
msi_default_domain->flags |= IRQ_DOMAIN_MSI_NOMASK_QUIRK;
+ }
}
#ifdef CONFIG_IRQ_REMAP
@@ -300,7 +301,8 @@ struct irq_domain *arch_create_remap_msi_irq_domain(struct irq_domain *parent,
if (!fn)
return NULL;
d = pci_msi_create_irq_domain(fn, &pci_msi_ir_domain_info, parent);
- irq_domain_free_fwnode(fn);
+ if (!d)
+ irq_domain_free_fwnode(fn);
return d;
}
#endif
@@ -363,7 +365,8 @@ static struct irq_domain *dmar_get_irq_domain(void)
if (fn) {
dmar_domain = msi_create_irq_domain(fn, &dmar_msi_domain_info,
x86_vector_domain);
- irq_domain_free_fwnode(fn);
+ if (!dmar_domain)
+ irq_domain_free_fwnode(fn);
}
out:
mutex_unlock(&dmar_lock);
@@ -488,7 +491,10 @@ struct irq_domain *hpet_create_irq_domain(int hpet_id)
}
d = msi_create_irq_domain(fn, domain_info, parent);
- irq_domain_free_fwnode(fn);
+ if (!d) {
+ irq_domain_free_fwnode(fn);
+ kfree(domain_info);
+ }
return d;
}
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 18c0dca08163..df4d5385e6dd 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -701,7 +701,6 @@ int __init arch_early_irq_init(void)
x86_vector_domain = irq_domain_create_tree(fn, &x86_vector_domain_ops,
NULL);
BUG_ON(x86_vector_domain == NULL);
- irq_domain_free_fwnode(fn);
irq_set_default_host(x86_vector_domain);
arch_init_msi_domain(x86_vector_domain);
diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
index 519649ddf100..fe522691ac71 100644
--- a/arch/x86/kernel/i8259.c
+++ b/arch/x86/kernel/i8259.c
@@ -207,7 +207,7 @@ spurious_8259A_irq:
* lets ACK and report it. [once per IRQ]
*/
if (!(spurious_irq_mask & irqmask)) {
- printk(KERN_DEBUG
+ printk_deferred(KERN_DEBUG
"spurious 8259A interrupt: IRQ%d.\n", irq);
spurious_irq_mask |= irqmask;
}
diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c
index 2d6898c2cb64..6d83b4b857e6 100644
--- a/arch/x86/kernel/stacktrace.c
+++ b/arch/x86/kernel/stacktrace.c
@@ -58,7 +58,6 @@ int arch_stack_walk_reliable(stack_trace_consume_fn consume_entry,
* or a page fault), which can make frame pointers
* unreliable.
*/
-
if (IS_ENABLED(CONFIG_FRAME_POINTER))
return -EINVAL;
}
@@ -81,10 +80,6 @@ int arch_stack_walk_reliable(stack_trace_consume_fn consume_entry,
if (unwind_error(&state))
return -EINVAL;
- /* Success path for non-user tasks, i.e. kthreads and idle tasks */
- if (!(task->flags & (PF_KTHREAD | PF_IDLE)))
- return -EINVAL;
-
return 0;
}
diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c
index aa0f39dc8129..187a86e0e753 100644
--- a/arch/x86/kernel/unwind_orc.c
+++ b/arch/x86/kernel/unwind_orc.c
@@ -431,8 +431,11 @@ bool unwind_next_frame(struct unwind_state *state)
/*
* Find the orc_entry associated with the text address.
*
- * Decrement call return addresses by one so they work for sibling
- * calls and calls to noreturn functions.
+ * For a call frame (as opposed to a signal frame), state->ip points to
+ * the instruction after the call. That instruction's stack layout
+ * could be different from the call instruction's layout, for example
+ * if the call was to a noreturn function. So get the ORC data for the
+ * call instruction itself.
*/
orc = orc_find(state->signal ? state->ip : state->ip - 1);
if (!orc) {
@@ -653,6 +656,7 @@ void __unwind_start(struct unwind_state *state, struct task_struct *task,
state->sp = task->thread.sp;
state->bp = READ_ONCE_NOCHECK(frame->bp);
state->ip = READ_ONCE_NOCHECK(frame->ret_addr);
+ state->signal = (void *)state->ip == ret_from_fork;
}
if (get_stack_info((unsigned long *)state->sp, state->task,
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index bac1a65a9d39..1afe211d7a7c 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -362,6 +362,7 @@ SECTIONS
.bss : AT(ADDR(.bss) - LOAD_OFFSET) {
__bss_start = .;
*(.bss..page_aligned)
+ . = ALIGN(PAGE_SIZE);
*(BSS_MAIN)
BSS_DECRYPTED
. = ALIGN(PAGE_SIZE);
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 5d2587005d0e..6920f1d3b66f 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -2085,7 +2085,7 @@ void kvm_set_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu, u64 data)
{
struct kvm_lapic *apic = vcpu->arch.apic;
- if (!lapic_in_kernel(vcpu) || apic_lvtt_oneshot(apic) ||
+ if (!kvm_apic_present(vcpu) || apic_lvtt_oneshot(apic) ||
apic_lvtt_period(apic))
return;
diff --git a/arch/x86/math-emu/wm_sqrt.S b/arch/x86/math-emu/wm_sqrt.S
index f031c0e19356..515cdee90df7 100644
--- a/arch/x86/math-emu/wm_sqrt.S
+++ b/arch/x86/math-emu/wm_sqrt.S
@@ -209,7 +209,7 @@ sqrt_stage_2_finish:
#ifdef PARANOID
/* It should be possible to get here only if the arg is ffff....ffff */
- cmp $0xffffffff,FPU_fsqrt_arg_1
+ cmpl $0xffffffff,FPU_fsqrt_arg_1
jnz sqrt_stage_2_error
#endif /* PARANOID */
diff --git a/arch/x86/platform/uv/uv_irq.c b/arch/x86/platform/uv/uv_irq.c
index fc13cbbb2dce..abb6075397f0 100644
--- a/arch/x86/platform/uv/uv_irq.c
+++ b/arch/x86/platform/uv/uv_irq.c
@@ -167,9 +167,10 @@ static struct irq_domain *uv_get_irq_domain(void)
goto out;
uv_domain = irq_domain_create_tree(fn, &uv_domain_ops, NULL);
- irq_domain_free_fwnode(fn);
if (uv_domain)
uv_domain->parent = x86_vector_domain;
+ else
+ irq_domain_free_fwnode(fn);
out:
mutex_unlock(&uv_lock);
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-12 03:47:03 +0300