Re: [Xen-devel] [PATCH] x86/IRQ: create_irq() should call assign_irq_vector()

[Keir Fraser <keir@xxxxxxx>]

On 08/11/2011 10:42, "Jan Beulich" <JBeulich@xxxxxxxx> wrote:

> ... rather than __assign_irq_vector(), to ensure desc->affinity gets
> initialized properly.
> 
> This at once eliminates the need to forward-declare the latter function.
> 
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Acked-by: Keir Fraser <keir@xxxxxxx>

> --- a/xen/arch/x86/irq.c
> +++ b/xen/arch/x86/irq.c
> @@ -25,7 +25,6 @@
>  #include <public/physdev.h>
>  
>  static void parse_irq_vector_map_param(char *s);
> -static int __assign_irq_vector(int irq, struct irq_desc *, const cpumask_t
> *);
>  
>  /* opt_noirqbalance: If true, software IRQ balancing/affinity is disabled. */
>  bool_t __read_mostly opt_noirqbalance = 0;
> @@ -153,7 +152,6 @@ int __init bind_irq_vector(int irq, int
>   */
>  int create_irq(void)
>  {
> -    unsigned long flags;
>      int irq, ret;
>      struct irq_desc *desc;
>  
> @@ -169,11 +167,7 @@ int create_irq(void)
>  
>      ret = init_one_irq_desc(desc);
>      if (!ret)
> -    {
> -        spin_lock_irqsave(&vector_lock, flags);
> -        ret = __assign_irq_vector(irq, desc, TARGET_CPUS);
> -        spin_unlock_irqrestore(&vector_lock, flags);
> -    }
> +        ret = assign_irq_vector(irq);
>      if (ret < 0)
>      {
>          desc->arch.used = IRQ_UNUSED;
> 
> 
> 
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