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From:   Robert Foss <robert.foss@linaro.org>
Date:   Mon, 15 Mar 2021 16:51:59 +0100
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Subject: Re: [PATCH v7 00/22] Add support for the SDM845 Camera Subsystem
To:     Hans Verkuil <hverkuil@xs4all.nl>
Cc:     Andy Gross <agross@kernel.org>,
        Bjorn Andersson <bjorn.andersson@linaro.org>,
        Todor Tomov <todor.too@gmail.com>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        angelogioacchino.delregno@somainline.org,
        MSM <linux-arm-msm@vger.kernel.org>,
        linux-media <linux-media@vger.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@vger.kernel.org>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        AngeloGioacchino Del Regno <kholk11@gmail.com>,
        Sakari Ailus <sakari.ailus@iki.fi>,
        Andrey Konovalov <andrey.konovalov@linaro.org>,
        Tomasz Figa <tfiga@chromium.org>,
        Azam Sadiq Pasha Kapatrala Syed <akapatra@quicinc.com>,
        Sarvesh Sridutt <Sarvesh.Sridutt@smartwirelesscompute.com>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Jonathan Marek <jonathan@marek.ca>
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Precedence: bulk

Hey Hans,


> >
>
> Please check the patches in this series with 'scripts/checkpatch.pl --strict'.
> I got a bunch of warnings, most seemed trivial to fix.

Ack, sending out v8 in a bit.

>
> When I compiled this series I also got these sparse warnings:
>
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-1.c drivers/media/platform/qcom/camss/camss-vfe-4-1.c:959:30: warning: symbol
> 'vfe_ops_gen1_4_1' was not declared. Should it be static?
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-1.c drivers/media/platform/qcom/camss/camss-vfe-gen1.h:69:31: error: marked inline, but
> without a definition
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-1.c drivers/media/platform/qcom/camss/camss-vfe-gen1.h:69:31: error: marked inline, but
> without a definition
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-1.c drivers/media/platform/qcom/camss/camss-vfe-gen1.h:69:31: error: marked inline, but
> without a definition
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-1.c drivers/media/platform/qcom/camss/camss-vfe-gen1.h:69:31: error: marked inline, but
> without a definition
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-1.c drivers/media/platform/qcom/camss/camss-vfe-4-1.c:959:30: warning: symbol
> 'vfe_ops_gen1_4_1' was not declared. Should it be static?
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-1.c drivers/media/platform/qcom/camss/camss-vfe-gen1.h:69:31: error: marked inline, but
> without a definition
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-1.c drivers/media/platform/qcom/camss/camss-vfe-gen1.h:69:31: error: marked inline, but
> without a definition
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-1.c drivers/media/platform/qcom/camss/camss-vfe-gen1.h:69:31: error: marked inline, but
> without a definition
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-1.c drivers/media/platform/qcom/camss/camss-vfe-gen1.h:69:31: error: marked inline, but
> without a definition
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-7.c drivers/media/platform/qcom/camss/camss-vfe-4-7.c:1151:30: warning: symbol
> 'vfe_ops_gen1_4_7' was not declared. Should it be static?
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-7.c drivers/media/platform/qcom/camss/camss-vfe-gen1.h:69:31: error: marked inline, but
> without a definition
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-7.c drivers/media/platform/qcom/camss/camss-vfe-gen1.h:69:31: error: marked inline, but
> without a definition
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-7.c drivers/media/platform/qcom/camss/camss-vfe-gen1.h:69:31: error: marked inline, but
> without a definition
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-7.c drivers/media/platform/qcom/camss/camss-vfe-gen1.h:69:31: error: marked inline, but
> without a definition
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-170.c drivers/media/platform/qcom/camss/camss-vfe-170.c:770:26: warning: symbol
> 'vfe_isr_ops_170' was not declared. Should it be static?
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-8.c drivers/media/platform/qcom/camss/camss-vfe-4-8.c:1140:30: warning: symbol
> 'vfe_ops_gen1_4_8' was not declared. Should it be static?
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-8.c drivers/media/platform/qcom/camss/camss-vfe-gen1.h:69:31: error: marked inline, but
> without a definition
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-8.c drivers/media/platform/qcom/camss/camss-vfe-gen1.h:69:31: error: marked inline, but
> without a definition
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-8.c drivers/media/platform/qcom/camss/camss-vfe-gen1.h:69:31: error: marked inline, but
> without a definition
> SPARSE:drivers/media/platform/qcom/camss/camss-vfe-4-8.c drivers/media/platform/qcom/camss/camss-vfe-gen1.h:69:31: error: marked inline, but
> without a definition
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
>

Ack, wasn't aware of sparse or smatch, I'm adding them to my workflow now.

> And these smatch warnings (a lot of overlap with sparse):
>
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-csid.h:66:27: warning: 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
> drivers/media/platform/qcom/camss/camss-vfe-170.c:422 vfe_halt() warn: ignoring unreachable code.
> drivers/media/platform/qcom/camss/camss-vfe-gen1.c:26 vfe_gen1_halt() warn: ignoring unreachable code.


Ack, thanks for the testing!