linux-kernel - Re: [PATCH 4/4] drivers: xen: Move prototype declaration to header file include/xen/xen-ops.h from arch/x86/xen/xen-ops.h

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Message-ID: <52F8B746.9020008@citrix.com>
Date:	Mon, 10 Feb 2014 11:25:58 +0000
From:	David Vrabel <david.vrabel@...rix.com>
To:	Rashika Kheria <rashika.kheria@...il.com>
CC:	<linux-kernel@...r.kernel.org>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, <x86@...nel.org>,
	Stefano Stabellini <stefano.stabellini@...citrix.com>,
	Wei Liu <wei.liu2@...rix.com>,
	<xen-devel@...ts.xenproject.org>, <josh@...htriplett.org>
Subject: Re: [PATCH 4/4] drivers: xen: Move prototype declaration to header
 file include/xen/xen-ops.h from arch/x86/xen/xen-ops.h

On 09/02/14 11:12, Rashika Kheria wrote:
> Move prototype declaration to header file include/xen/xen-ops.h from
> arch/x86/xen/xen-ops.h because it is used by more than one file. Also,
> remove else condition from xen/events/events_base.c to eliminate
> conflicting definitions when CONFIG_XEN_PVHVM is not defined.
> 
> This eliminates the following warning in xen/events/events_base.c:
> drivers/xen/events/events_base.c:1640:6: warning: no previous prototype for ‘xen_callback_vector’ [-Wmissing-prototypes]
[...]
> --- a/include/xen/xen-ops.h
> +++ b/include/xen/xen-ops.h
> @@ -38,4 +38,11 @@ int xen_unmap_domain_mfn_range(struct vm_area_struct *vma,
>  bool xen_running_on_version_or_later(unsigned int major, unsigned int minor);
>  
>  irqreturn_t xen_debug_interrupt(int irq, void *dev_id);
> +
> +#ifdef CONFIG_XEN_PVHVM
> +void xen_callback_vector(void);
> +#else
> +static inline void xen_callback_vector(void) {}
> +#endif
> +

This should be in include/xen/events.h

David
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