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From: Scott Wood <scottwood@freescale.com>
To: Kevin Hilman <khilman@linaro.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
	<linaro-kernel@lists.linaro.org>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	Gleb Natapov <gleb@redhat.com>,
	"open list:KERNEL VIRTUAL MA..." <kvm@vger.kernel.org>,
	open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] KVM: allow host header to be included even for !CONFIG_KVM
Date: Wed, 20 Mar 2013 18:58:41 -0500	[thread overview]
Message-ID: <1363823921.25034.35@snotra> (raw)
In-Reply-To: <1363306426-27209-1-git-send-email-khilman@linaro.org> (from khilman@linaro.org on Thu Mar 14 19:13:46 2013)

On 03/14/2013 07:13:46 PM, Kevin Hilman wrote:
> The new context tracking subsystem unconditionally includes kvm_host.h
> headers for the guest enter/exit macros.  This causes a compile
> failure when KVM is not enabled.
> 
> Fix by adding an IS_ENABLED(CONFIG_KVM) check to kvm_host so it can
> be included/compiled even when KVM is not enabled.
> 
> Cc: Frederic Weisbecker <fweisbec@gmail.com>
> Signed-off-by: Kevin Hilman <khilman@linaro.org>
> ---
> Applies on v3.9-rc2
> 
>  include/linux/kvm_host.h | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)

This broke the PPC non-KVM build, which was relying on stub functions  
in kvm_ppc.h, which relies on "struct vcpu" in kvm_host.h.

Why can't the entirety kvm_host.h be included regardless of CONFIG_KVM,  
just like most other feature-specific headers?  Why can't the if/else  
just go around the functions that you want to stub out for non-KVM  
builds?

-Scott

  parent reply	other threads:[~2013-03-20 23:58 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-15  0:13 [PATCH] KVM: allow host header to be included even for !CONFIG_KVM Kevin Hilman
2013-03-18 21:04 ` Marcelo Tosatti
2013-03-20 23:58 ` Scott Wood [this message]
2013-03-21  7:29   ` Gleb Natapov
2013-03-21 14:27     ` Kevin Hilman
2013-03-21 18:42       ` Scott Wood
2013-03-21 19:16         ` Gleb Natapov
2013-03-21 19:33           ` Scott Wood
2013-03-21 21:17             ` Gleb Natapov
2013-03-22  0:02               ` Kevin Hilman
2013-03-24 10:21                 ` Gleb Natapov
2013-03-24 13:44               ` Frederic Weisbecker
2013-03-24 14:01                 ` Gleb Natapov
2013-03-25 21:14                   ` Kevin Hilman
2013-04-02 11:56                     ` Gleb Natapov
2013-05-02 21:58                       ` Alexander Graf
2013-05-15 22:52                     ` Frederic Weisbecker
2013-05-17  1:04                       ` Frederic Weisbecker
2013-05-17 14:09                         ` Kevin Hilman
2013-05-17 14:34                           ` Frederic Weisbecker
2013-05-17 17:00                             ` Kevin Hilman

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