Re: [Xen-devel] [PATCH] xen/balloon: Fix declared-but-not-defined warning

[Juergen Gross <jgross@xxxxxxxx>]

On 09/05/16 15:29, Ross Lagerwall wrote:
> Fix a declared-but-not-defined warning when building with
> XEN_BALLOON_MEMORY_HOTPLUG=n. This fixes a regression introduced by
> commit dfd74a1edfab
> ("xen/balloon: Fix crash when ballooning on x86 32 bit PAE").
> 
> Signed-off-by: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
> ---
>  drivers/xen/balloon.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
> index d46839f..0e57906 100644
> --- a/drivers/xen/balloon.c
> +++ b/drivers/xen/balloon.c
> @@ -151,8 +151,6 @@ static DECLARE_WAIT_QUEUE_HEAD(balloon_wq);
>  static void balloon_process(struct work_struct *work);
>  static DECLARE_DELAYED_WORK(balloon_worker, balloon_process);
>  
> -static void release_memory_resource(struct resource *resource);
> -
>  /* When ballooning out (allocating memory to return to Xen) we don't really
>     want the kernel to try too hard since that can trigger the oom killer. */
>  #define GFP_BALLOON \
> @@ -248,6 +246,8 @@ static enum bp_state update_schedule(enum bp_state state)
>  }
>  
>  #ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG
> +static void release_memory_resource(struct resource *resource);
> +

I'd rather move release_memory_resource() here instead of adding the
prototype.


Juergen

>  static struct resource *additional_memory_resource(phys_addr_t size)
>  {
>       struct resource *res;
> 


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