linux-kernel - Re: [PATCH] xen: ifdef CONFIG_HIBERNATE_CALLBACKS xen_*

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Date:	Thu, 27 Jun 2013 16:10:29 -0400
From:	konrad wilk <konrad.wilk@...cle.com>
To:	Stefano Stabellini <stefano.stabellini@...citrix.com>
CC:	linux-kernel@...r.kernel.org, stefano.stabellini@...rix.com,
	xen-devel@...ts.xen.org
Subject: Re: [PATCH] xen: ifdef CONFIG_HIBERNATE_CALLBACKS xen_*_suspend


On 6/27/2013 9:28 AM, Stefano Stabellini wrote:
> xen_hvm_post_suspend, xen_pre_suspend, xen_post_suspend are only used if
> CONFIG_HIBERNATE_CALLBACKS is defined, resulting in:
>
> drivers/xen/manage.c:46:13: warning: ‘xen_hvm_post_suspend’ defined but not used [-Wunused-function]
> drivers/xen/manage.c:52:13: warning: ‘xen_pre_suspend’ defined but not used [-Wunused-function]
> drivers/xen/manage.c:59:13: warning: ‘xen_post_suspend’ defined but not used [-Wunused-function]
>
> If the kernel config is missing CONFIG_HIBERNATE_CALLBACKS.
>
> Simply ifdef CONFIG_HIBERNATE_CALLBACKS the three functions.
>
> Signed-off-by: Stefano Stabellini <stefano.stabellini@...citrix.com>
> ---
>   drivers/xen/manage.c |    2 +-
>   1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c
> index 412b96c..b1005d4 100644
> --- a/drivers/xen/manage.c
> +++ b/drivers/xen/manage.c
> @@ -43,6 +43,7 @@ struct suspend_info {
>   	void (*post)(int cancelled);
>   };
>   
> +#ifdef CONFIG_HIBERNATE_CALLBACKS
>   static void xen_hvm_post_suspend(int cancelled)
>   {
>   	xen_arch_hvm_post_suspend(cancelled);
> @@ -63,7 +64,6 @@ static void xen_post_suspend(int cancelled)
>   	xen_mm_unpin_all();
>   }
>   
> -#ifdef CONFIG_HIBERNATE_CALLBACKS
>   static int xen_suspend(void *data)
>   {
>   	struct suspend_info *si = data;
Looks ok. Will queue it up for 3.11

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