linux-kernel - Re: [PATCH 2/6] drm: ci: Force db410c to host mode

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <87pm3b2pkz.fsf@intel.com>
Date:   Fri, 25 Aug 2023 16:56:12 +0300
From:   Jani Nikula <jani.nikula@...ux.intel.com>
To:     Vignesh Raman <vignesh.raman@...labora.com>,
        dri-devel@...ts.freedesktop.org
Cc:     emma@...olt.net, linux-doc@...r.kernel.org,
        david.heidelberg@...labora.com, linux-amlogic@...ts.infradead.org,
        jbrunet@...libre.com, robdclark@...gle.com, corbet@....net,
        khilman@...libre.com, sergi.blanch.torne@...labora.com,
        gustavo.padovan@...labora.com, linux-rockchip@...ts.infradead.org,
        daniels@...labora.com, martin.blumenstingl@...glemail.com,
        robclark@...edesktop.org, helen.koike@...labora.com,
        anholt@...gle.com, linux-mediatek@...ts.infradead.org,
        mripard@...nel.org, matthias.bgg@...il.com,
        linux-arm-kernel@...ts.infradead.org,
        angelogioacchino.delregno@...labora.com, neil.armstrong@...aro.org,
        guilherme.gallo@...labora.com, linux-kernel@...r.kernel.org,
        tzimmermann@...e.de
Subject: Re: [PATCH 2/6] drm: ci: Force db410c to host mode

On Fri, 25 Aug 2023, Vignesh Raman <vignesh.raman@...labora.com> wrote:
> Force db410c to host mode to fix network issue which results in failure
> to mount root fs via NFS.
> See https://gitlab.freedesktop.org/gfx-ci/linux/-/commit/cb72a629b8c15c80a54dda510743cefd1c4b65b8
>
> Since this fix is not sent upstream, add it to build.sh script
> before building the kernel and dts. Better approach would be
> to use devicetree overlays.
>
> Signed-off-by: Vignesh Raman <vignesh.raman@...labora.com>
> ---
>  drivers/gpu/drm/ci/build.sh | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/drivers/gpu/drm/ci/build.sh b/drivers/gpu/drm/ci/build.sh
> index 7b014287a041..c39834bd6bd7 100644
> --- a/drivers/gpu/drm/ci/build.sh
> +++ b/drivers/gpu/drm/ci/build.sh
> @@ -70,6 +70,10 @@ if [ -z "$CI_MERGE_REQUEST_PROJECT_PATH" ]; then
>      fi
>  fi
>  
> +# Force db410c to host mode to fix network issue which results in failure to mount root fs via NFS.
> +# See https://gitlab.freedesktop.org/gfx-ci/linux/-/commit/cb72a629b8c15c80a54dda510743cefd1c4b65b8
> +sed -i '/&usb {/,/status = "okay";/s/status = "okay";/&\n\tdr_mode = "host";/' arch/arm64/boot/dts/qcom/apq8016-sbc.dts
> +

It seems like a really bad idea to me to have the CI build modify the
source tree before building.

The kernel being built will have a dirty git repo, and the localversion
will have -dirty in it.

I think it would be better to do out-of-tree builds and assume the
source is read-only.

>  for opt in $ENABLE_KCONFIGS; do
>    echo CONFIG_$opt=y >> drivers/gpu/drm/ci/${KERNEL_ARCH}.config
>  done

Ditto for the config changes in the context here. Those are files in
git, don't change them.

Shouldn't this use something like 'scripts/config --enable' or
'scripts/config --disable' on the .config file to be used for building
instead?


BR,
Jani.


-- 
Jani Nikula, Intel Open Source Graphics Center