Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18;
MIME-Version: 1.0
From:   Naresh Kamboju <naresh.kamboju@linaro.org>
Date:   Thu, 24 Feb 2022 20:01:10 +0530
Message-ID: <CA+G9fYu4PPE6_91mzor0bW7RSzBDNJ3xqqgeeK-jR1jokmhYOQ@mail.gmail.com>
Subject: gpu/drm/dp/drm_dp.c:59:27: warning: array subscript 10 is outside
 array bounds of 'const u8[6]'
To:     dri-devel@lists.freedesktop.org,
        open list <linux-kernel@vger.kernel.org>,
        Linux-Next Mailing List <linux-next@vger.kernel.org>
Cc:     David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
        Lyude Paul <lyude@redhat.com>,
        =?UTF-8?B?VmlsbGUgU3lyasOkbMOk?= <ville.syrjala@linux.intel.com>,
        Jani Nikula <jani.nikula@intel.com>,
        Dave Airlie <airlied@redhat.com>,
        Douglas Anderson <dianders@chromium.org>,
        Thomas Zimmermann <tzimmermann@suse.de>,
        Stephen Rothwell <sfr@canb.auug.org.au>,
        lkft-triage@lists.linaro.org
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

[Please ignore this email if it is already reported]

Linux next-20220223 arch riscv build warnings noticed.
Build configs:
  - riscv-gcc-9-defconfig
  - riscv-gcc-9-defconfig
  - riscv-gcc-10-defconfig
  - riscv-gcc-11-defconfig

metadata:
  git_ref: master
  git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
  git_sha: d4a0ae62a277377de396850ed4b709b6bd9b7326
  git_describe: next-20220223
  arch: riscv
  toolchain: gcc-11

Build warnings:
-----------
drivers/gpu/drm/dp/drm_dp.c: In function
'drm_dp_get_adjust_request_post_cursor':
drivers/gpu/drm/dp/drm_dp.c:59:27: warning: array subscript 10 is
outside array bounds of 'const u8[6]' {aka 'const unsigned char[6]'}
[-Warray-bounds]
   59 |         return link_status[r - DP_LANE0_1_STATUS];
      |                ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/dp/drm_dp.c:210:51: note: while referencing 'link_status'
  210 | u8 drm_dp_get_adjust_request_post_cursor(const u8
link_status[DP_LINK_STATUS_SIZE],
      |
~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
make[1]: Target '__all' not remade because of errors.

Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>

Steps to reproduce:
------------------
# To install tuxmake on your system globally:
# sudo pip3 install -U tuxmake

tuxmake --runtime podman --target-arch riscv --toolchain gcc-11
--kconfig defconfig

--
Linaro LKFT
https://lkft.linaro.org

[1] https://builds.tuxbuild.com/25XO99nwfQgKrWKz4yfBPYw0wyU/