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Re: [PATCH 1/2] remoteproc: Introduce rproc_{start,stop}() functions

From Sarangdhar Joshi <spjoshi@codeaurora.org>
Newsgroups linux.kernel
Subject Re: [PATCH 1/2] remoteproc: Introduce rproc_{start,stop}() functions
Date 2017-05-03 04:10 +0200
Message-ID <tCRTP-6vM-1@gated-at.bofh.it> (permalink)
References <tCN3Q-3du-17@gated-at.bofh.it> <tCQ1H-5fD-3@gated-at.bofh.it>
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On 05/02/2017 05:02 PM, Bjorn Andersson wrote:
> On Tue 02 May 13:59 PDT 2017, Sarangdhar Joshi wrote:
>
>> In the context of recovering from crash,
>> rproc_trigger_recovery() does rproc_shutdown() followed
>> by rproc_boot(). The remoteproc resources are cleaned up
>> in rproc_shutdown() and immediately reallocated in
>> rproc_boot() which is an unnecessary overhead.
>>
>> Furthermore, we want the memory regions to be accessible
>> after stopping the remote processor, to be able to extract
>> the memory content for a coredump.
>>
>> The current patch factors out the code in rproc_boot() and
>
> "This patch factors..."
>
>> rproc_shutdown() path and introduces rproc_{start,stop}()
>> in order to avoid resource allocation overhead.
>>
>
> I think the result of the two patches looks good.
>
> But I would prefer if you splice them differently. If I read the patches
> correctly you should be able to introduce rproc_start()/stop() and move
> rproc_boot()/shutdown() over to use these in one patch and then in a
> second patch modify the behavior of the recovery.
>
> That way if one bisects any issues to either one we know if it was the
> refactoring or the modification of the recovery behavior.

Yes, got your point. I will split it into two separate patches.

Regards,
Sarang

>
> Regards,
> Bjorn
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[PATCH 1/2] remoteproc: Introduce rproc_{start,stop}() functions Sarangdhar Joshi <spjoshi@codeaurora.org> - 2017-05-02 23:00 +0200
  Re: [PATCH 1/2] remoteproc: Introduce rproc_{start,stop}() functions Bjorn Andersson <bjorn.andersson@linaro.org> - 2017-05-03 02:10 +0200
    Re: [PATCH 1/2] remoteproc: Introduce rproc_{start,stop}() functions Sarangdhar Joshi <spjoshi@codeaurora.org> - 2017-05-03 04:10 +0200

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