Messages in this thread Patch in this message | | | From | Thomas Gleixner <> | Subject | [PATCH] x86/xen: Remove redundant irq_enter/exit() invocations | Subject | | Date | Tue, 12 Oct 2021 15:33:09 +0200 |
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All these handlers are regular device interrupt handlers, so they already went through the proper entry code which handles this correctly.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Juergen Gross <jgross@suse.com> Cc: Stefano Stabellini <sstabellini@kernel.org> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: x86@kernel.org Cc: xen-devel@lists.xenproject.org --- arch/x86/xen/smp.c | 4 ---- arch/x86/xen/smp_pv.c | 2 -- 2 files changed, 6 deletions(-)
--- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -268,20 +268,16 @@ void xen_send_IPI_allbutself(int vector) static irqreturn_t xen_call_function_interrupt(int irq, void *dev_id) { - irq_enter(); generic_smp_call_function_interrupt(); inc_irq_stat(irq_call_count); - irq_exit(); return IRQ_HANDLED; } static irqreturn_t xen_call_function_single_interrupt(int irq, void *dev_id) { - irq_enter(); generic_smp_call_function_single_interrupt(); inc_irq_stat(irq_call_count); - irq_exit(); return IRQ_HANDLED; } --- a/arch/x86/xen/smp_pv.c +++ b/arch/x86/xen/smp_pv.c @@ -458,10 +458,8 @@ static void xen_pv_stop_other_cpus(int w static irqreturn_t xen_irq_work_interrupt(int irq, void *dev_id) { - irq_enter(); irq_work_run(); inc_irq_stat(apic_irq_work_irqs); - irq_exit(); return IRQ_HANDLED; }
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