linux-kernel - Re: [PATCH v7 00/22] Add support for the SDM845 Camera Subsystem

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Message-ID: <CAG3jFyuu7MUny3n2MrYPa=vy8pmz0HBGYz=1WEWvHNzJvjsRWg@mail.gmail.com>
Date:   Mon, 15 Mar 2021 16:51:59 +0100
From:   Robert Foss <robert.foss@...aro.org>
To:     Hans Verkuil <hverkuil@...all.nl>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Todor Tomov <todor.too@...il.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        angelogioacchino.delregno@...ainline.org,
        MSM <linux-arm-msm@...r.kernel.org>,
        linux-media <linux-media@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        AngeloGioacchino Del Regno <kholk11@...il.com>,
        Sakari Ailus <sakari.ailus@....fi>,
        Andrey Konovalov <andrey.konovalov@...aro.org>,
        Tomasz Figa <tfiga@...omium.org>,
        Azam Sadiq Pasha Kapatrala Syed <akapatra@...cinc.com>,
        Sarvesh Sridutt <Sarvesh.Sridutt@...rtwirelesscompute.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Jonathan Marek <jonathan@...ek.ca>
Subject: Re: [PATCH v7 00/22] Add support for the SDM845 Camera Subsystem

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!