linux-kernel - Re: [PATCH 3.8-rc4-nohz3] kvm: Add missing EXPORT_SYMBOL when CONFIG

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Message-ID: <CAHdPZaNYFBXMhvH7Jyy5Zy4MnB3iKfL9UW9xf3jy5MNBu8aPnw@mail.gmail.com>
Date:	Wed, 23 Jan 2013 08:17:36 -0500
From:	"devendra.aaru" <devendra.aaru@...il.com>
To:	Sedat Dilek <sedat.dilek@...il.com>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3.8-rc4-nohz3] kvm: Add missing EXPORT_SYMBOL when CONFIG_KVM=m

On Wed, Jan 23, 2013 at 8:15 AM, Sedat Dilek <sedat.dilek@...il.com> wrote:
> With CONFIG_KVM=m my build with 3.8-rc4-nohz3 breaks like this:
>
> ERROR: "guest_enter" [arch/x86/kvm/kvm.ko] undefined!
> ERROR: "guest_exit" [arch/x86/kvm/kvm.ko] undefined!
>
> Fix this by adding the missing EXPORT_SYMBOL for guest_enter() and
> guest_exit() in kernel/context_tracking.c as suggested by Frederic.
>
> This issue was introduced with commit 8eebafe9be58 ("kvm: Prepare to
> add generic guest entry/exit callbacks").
>
> Signed-off-by: Sedat Dilek <sedat.dilek@...il.com>
> ---
>  kernel/context_tracking.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/kernel/context_tracking.c b/kernel/context_tracking.c
> index bbb2c2c..950f30a 100644
> --- a/kernel/context_tracking.c
> +++ b/kernel/context_tracking.c
> @@ -111,14 +111,16 @@ void guest_enter(void)
>         else
>                 __guest_enter();
>  }
> +EXPORT_SYMBOL(guest_enter);
>
>  void guest_exit(void)
> -{
> +{i

compilation fails with that?


>         if (vtime_accounting_enabled())
>                 vtime_guest_exit(current);
>         else
>                 __guest_exit();
>  }
> +EXPORT_SYMBOL(guest_exit);
>  #endif
>
>
> --
> 1.8.1.1
>
> --
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