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Re: [Qemu-ppc] [Qemu-devel] [PATCH for-1.5?] target-ppc: Drop unnecessar
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From: |
Anthony Liguori |
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Subject: |
Re: [Qemu-ppc] [Qemu-devel] [PATCH for-1.5?] target-ppc: Drop unnecessary dynamic cast in ppc_env_get_cpu() |
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Date: |
Fri, 10 May 2013 10:02:02 -0500 |
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User-agent: |
Notmuch/0.15.2+77~g661dcf8 (http://notmuchmail.org) Emacs/23.3.1 (x86_64-pc-linux-gnu) |
Peter Maydell <address@hidden> writes:
> On 10 May 2013 15:39, Andreas Färber <address@hidden> wrote:
>> A transition from CPUPPCState to PowerPCCPU can be considered safe,
>> just like PowerPCCPU::env access in the opposite direction.
>>
>> This should slightly improve interrupt performance.
>
>> static inline PowerPCCPU *ppc_env_get_cpu(CPUPPCState *env)
>> {
>> - return POWERPC_CPU(container_of(env, PowerPCCPU, env));
>> + return container_of(env, PowerPCCPU, env);
>> }
>
> So if this is worthwhile shouldn't we be doing it for
> all our CPUs?
Ack.
Regards,
Anthony Liguori
>
> thanks
> -- PMM