On 11.12.2013, at 00:11, Scott Wood <[email protected]> wrote:

> On Tue, 2013-12-10 at 03:05 +0100, Alexander Graf wrote:
>> On 09.12.2013, at 22:18, Scott Wood <[email protected]> wrote:
>> 
>>> On Mon, 2013-11-25 at 04:26 -0600, Bharat Bhushan wrote:
>>>> 
>>>>> -----Original Message-----
>>>>> From: Wood Scott-B07421
>>>>> Sent: Saturday, November 23, 2013 3:22 AM
>>>>> To: Alexander Graf
>>>>> Cc: [email protected]; [email protected]; Wood Scott-B07421; 
>>>>> Bhushan
>>>>> Bharat-R65777
>>>>> Subject: [PATCH] powerpc/kvm/booke: Fix build break due to stack frame 
>>>>> size
>>>>> warning
>>>>> 
>>>>> Commit ce11e48b7fdd256ec68b932a89b397a790566031 ("KVM: PPC: E500: Add
>>>>> userspace debug stub support") added "struct thread_struct" to the
>>>>> stack of kvmppc_vcpu_run().  thread_struct is 1152 bytes on my build,
>>>>> compared to 48 bytes for the recently-introduced "struct debug_reg".
>>>>> Use the latter instead.
>>>>> 
>>>>> This fixes the following error:
>>>>> 
>>>>> cc1: warnings being treated as errors
>>>>> arch/powerpc/kvm/booke.c: In function 'kvmppc_vcpu_run':
>>>>> arch/powerpc/kvm/booke.c:760:1: error: the frame size of 1424 bytes is 
>>>>> larger
>>>>> than 1024 bytes
>>>>> make[2]: *** [arch/powerpc/kvm/booke.o] Error 1
>>>>> make[1]: *** [arch/powerpc/kvm] Error 2
>>>>> make[1]: *** Waiting for unfinished jobs....
>>>>> 
>>>>> Signed-off-by: Scott Wood <[email protected]>
>>>>> Cc: Bharat Bhushan <[email protected]>
>>>>> ---
>>>>> Build tested only.  Bharat, please test.
>>>> 
>>>> Tested with qemu debug stub; It works fine
>>>> 
>>>> -Bharat
>>> 
>>> Alex, are you going to take this through your tree?
>> 
>> Sure. Do you want this for 3.13 or 3.14? Since I don't see the breakage
>> with my compilers I'd queue it for 3.14, but whatever works for you
>> works for me.
> 
> 3.13 please.  All I need to do to trigger the build break is enable KVM
> with corenet64_smp_defconfig with GCC 4.5.

Thanks, applied to the for-3.13 branch.


Alex

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