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

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Date:	Wed, 23 Jan 2013 14:46:14 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	sedat.dilek@...il.com
Cc:	"devendra.aaru" <devendra.aaru@...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

2013/1/23 Sedat Dilek <sedat.dilek@...il.com>:
> On Wed, Jan 23, 2013 at 2:17 PM, devendra.aaru <devendra.aaru@...il.com> wrote:
>> 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?
>>
>
> Hmmm, yes, but why, clueless, CONFIG_KVM=y as a workaround!

I believe he pointed out the "{i" to you. Typing mistake?
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