Commit-ID:  451f743a64e1cf979f5fe21a1b2a015feb559f72
Gitweb:     https://git.kernel.org/tip/451f743a64e1cf979f5fe21a1b2a015feb559f72
Author:     Thomas Gleixner <[email protected]>
AuthorDate: Sun, 14 Apr 2019 18:00:03 +0200
Committer:  Borislav Petkov <[email protected]>
CommitDate: Wed, 17 Apr 2019 15:30:12 +0200

x86/irq/32: Invoke irq_ctx_init() from init_IRQ()

irq_ctx_init() is invoked from native_init_IRQ() or from xen_init_IRQ()
code. There is no reason to have this split. The interrupt stacks must be
allocated no matter what.

Invoke it from init_IRQ() before invoking the native or XEN init
implementation.

Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Reviewed-by: Juergen Gross <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Boris Ostrovsky <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Josh Abraham <[email protected]>
Cc: Josh Poimboeuf <[email protected]>
Cc: Juergen Gross <[email protected]>
Cc: Mike Rapoport <[email protected]>
Cc: Nicolai Stange <[email protected]>
Cc: Sean Christopherson <[email protected]>
Cc: Stefano Stabellini <[email protected]>
Cc: Stephen Rothwell <[email protected]>
Cc: x86-ml <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
---
 arch/x86/kernel/irqinit.c        | 4 ++--
 drivers/xen/events/events_base.c | 1 -
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c
index a0693b71cfc1..26b5cb5386b9 100644
--- a/arch/x86/kernel/irqinit.c
+++ b/arch/x86/kernel/irqinit.c
@@ -91,6 +91,8 @@ void __init init_IRQ(void)
        for (i = 0; i < nr_legacy_irqs(); i++)
                per_cpu(vector_irq, 0)[ISA_IRQ_VECTOR(i)] = irq_to_desc(i);
 
+       irq_ctx_init(smp_processor_id());
+
        x86_init.irqs.intr_init();
 }
 
@@ -104,6 +106,4 @@ void __init native_init_IRQ(void)
 
        if (!acpi_ioapic && !of_ioapic && nr_legacy_irqs())
                setup_irq(2, &irq2);
-
-       irq_ctx_init(smp_processor_id());
 }
diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 117e76b2f939..084e45882c73 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -1687,7 +1687,6 @@ void __init xen_init_IRQ(void)
 
 #ifdef CONFIG_X86
        if (xen_pv_domain()) {
-               irq_ctx_init(smp_processor_id());
                if (xen_initial_domain())
                        pci_xen_initial_domain();
        }

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