linux-hardening - Re: [PATCH v3 06/18] soc: qcom: minidump: Add update region support

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Message-ID: <645416da-7cc7-6dd5-3db1-0d3c8d247bab@linaro.org>
Date:   Thu, 4 May 2023 13:40:05 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Mukesh Ojha <quic_mojha@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, konrad.dybcio@...aro.org, corbet@....net,
        keescook@...omium.org, tony.luck@...el.com, gpiccoli@...lia.com,
        catalin.marinas@....com, will@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org,
        linus.walleij@...aro.org, linux-gpio@...r.kernel.org,
        srinivas.kandagatla@...aro.org
Cc:     linux-arm-msm@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-doc@...r.kernel.org
Subject: Re: [PATCH v3 06/18] soc: qcom: minidump: Add update region support

On 03/05/2023 19:02, Mukesh Ojha wrote:
> Add support to update client's region physical/virtual addresses,
> which is useful for dynamic loadable modules, dynamic address
> changing clients like if we want to collect current stack
> information for each core and the current stack is changing on
> each sched_switch event, So here virtual/physical address of
> the current stack is changing. So, to cover such use cases
> add the update region support in minidump driver.
> 
> Signed-off-by: Mukesh Ojha <quic_mojha@...cinc.com>
> ---
>  drivers/soc/qcom/qcom_minidump.c | 57 ++++++++++++++++++++++++++++++++++++++++
>  include/soc/qcom/qcom_minidump.h |  7 +++++
>  2 files changed, 64 insertions(+)
> 
> diff --git a/drivers/soc/qcom/qcom_minidump.c b/drivers/soc/qcom/qcom_minidump.c
> index 6d29371..853bdda 100644
> --- a/drivers/soc/qcom/qcom_minidump.c
> +++ b/drivers/soc/qcom/qcom_minidump.c
> @@ -561,6 +561,63 @@ int qcom_apss_minidump_region_unregister(const struct qcom_apss_minidump_region
>  }
>  EXPORT_SYMBOL_GPL(qcom_apss_minidump_region_unregister);
>  
> +/**
> + * qcom_apss_minidump_update_region() - Update region in APSS minidump table.

Description of the function is exact copy of function name. This is a
hint for two things:
1. Your function has wrong name.
2. Your description is not helping.



Best regards,
Krzysztof