Linux ARM-MSM sub-architecture
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From: Krzysztof Kozlowski <krzk@kernel.org>
To: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konrad.dybcio@linaro.org>,
	Mathieu Poirier <mathieu.poirier@linaro.org>,
	Sibi Sankar <quic_sibis@quicinc.com>,
	Bartosz Golaszewski <bartosz.golaszewski@linaro.org>,
	linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org,
	Johan Hovold <johan+linaro@kernel.org>,
	Xilin Wu <wuxilin123@gmail.com>
Subject: Re: [PATCH v5 5/6] soc: qcom: add pd-mapper implementation
Date: Sat, 20 Apr 2024 13:40:09 +0200	[thread overview]
Message-ID: <5d054c36-a082-4484-bab1-746b7b30c71b@kernel.org> (raw)
In-Reply-To: <c255c9d5-f3fc-438c-abbe-64995823e80c@kernel.org>

On 19/04/2024 20:45, Krzysztof Kozlowski wrote:
>>
>>>
>>>> Remoteproc module depends on this symbol. Once q6v5 remoteproc modules
>>>> are unloaded this module can be unloaded too.
>>>
>>> I am pretty sure you can unload this and get crashes.
>>
>> If for some reason somebody has called qcom_pdm_get() without
>> qcom_pdm_release(), then yes. To make it 100% safe, I can cleanup
>> actions to module_exit(), but for me it looks like an overkill.
> 
> I'll come with some more concrete example if you are not convinced.

It's not possible, this code does not compile. I fixed one thing but
then it fails in other places. This was probably never built and for
sure never really compile-tested in few more configurations.

Best regards,
Krzysztof


  parent reply	other threads:[~2024-04-20 11:40 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-19 14:00 [PATCH v5 0/6] soc: qcom: add in-kernel pd-mapper implementation Dmitry Baryshkov
2024-04-19 14:00 ` [PATCH v5 1/6] soc: qcom: pdr: protect locator_addr with the main mutex Dmitry Baryshkov
2024-04-19 14:00 ` [PATCH v5 2/6] soc: qcom: pdr: fix parsing of domains lists Dmitry Baryshkov
2024-04-19 14:00 ` [PATCH v5 3/6] soc: qcom: pdr: extract PDR message marshalling data Dmitry Baryshkov
2024-04-20 23:42   ` Bryan O'Donoghue
2024-04-21 13:16     ` Dmitry Baryshkov
2024-04-19 14:00 ` [PATCH v5 4/6] soc: qcom: qmi: add a way to remove running service Dmitry Baryshkov
2024-04-19 14:00 ` [PATCH v5 5/6] soc: qcom: add pd-mapper implementation Dmitry Baryshkov
2024-04-19 17:07   ` Krzysztof Kozlowski
2024-04-19 18:10     ` Dmitry Baryshkov
2024-04-19 18:15       ` Krzysztof Kozlowski
2024-04-19 18:24         ` Dmitry Baryshkov
2024-04-19 18:45           ` Krzysztof Kozlowski
2024-04-19 19:02             ` Dmitry Baryshkov
2024-04-20 11:40             ` Krzysztof Kozlowski [this message]
2024-04-19 14:00 ` [PATCH v5 6/6] remoteproc: qcom: enable in-kernel PD mapper Dmitry Baryshkov
2024-04-20 11:32 ` [PATCH v5 0/6] soc: qcom: add in-kernel pd-mapper implementation Krzysztof Kozlowski
2024-04-22 10:00   ` Dmitry Baryshkov

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