x86/xen: Remove redundant irq_enter/exit() invocations

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 <[e-mail]>
Cc: Juergen Gross <[e-mail]>
Cc: Stefano Stabellini <[e-mail]>
Cc: Boris Ostrovsky <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]
Reviewed-by: Juergen Gross <[e-mail]>
Link: https://lore.kernel.org/r/877deicqqy.ffs@tglx
Signed-off-by: Boris Ostrovsky <[e-mail]>

arch/x86/xen/smp.c

···
 
 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;
 }

arch/x86/xen/smp_pv.c

···
 
 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;
 }