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From:   Naresh Kamboju <naresh.kamboju@linaro.org>
Date:   Mon, 25 Oct 2021 17:43:53 +0530
Message-ID: <CA+G9fYvpyUbqLko+9Dza8h4=9yOd-n9J0dKoQtZxawstCCnsZw@mail.gmail.com>
Subject: gpu: drm_fb_cma_helper.c:46: undefined reference to `drm_gem_fb_get_obj'
To:     dri-devel@lists.freedesktop.org,
        open list <linux-kernel@vger.kernel.org>,
        Linux-Next Mailing List <linux-next@vger.kernel.org>,
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Cc:     Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
        Maxime Ripard <mripard@kernel.org>,
        Thomas Zimmermann <tzimmermann@suse.de>,
        David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>,
        Andrey Konovalov <andreyknvl@gmail.com>,
        Stephen Rothwell <sfr@canb.auug.org.au>,
        Arnd Bergmann <arnd@arndb.de>,
        Alexandre Belloni <alexandre.belloni@bootlin.com>,
        Linus Walleij <linus.walleij@linaro.org>
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Regression found on arm gcc-11 built with multi_v5_defconfig
Following build warnings / errors reported on linux next 20211025.

metadata:
    git_describe: next-20211025
    git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
    git_short_log: 9ae1fbdeabd3 (\"Add linux-next specific files for 20211025\")
    target_arch: arm
    toolchain: gcc-11
    config: multi_v5_defconfig

build error :
--------------
arm-linux-gnueabihf-ld: drivers/gpu/drm/drm_fb_cma_helper.o: in
function `drm_fb_cma_get_gem_obj':
drivers/gpu/drm/drm_fb_cma_helper.c:46: undefined reference to
`drm_gem_fb_get_obj'
arm-linux-gnueabihf-ld: drivers/gpu/drm/drm_fb_cma_helper.c:46:
undefined reference to `drm_gem_fb_get_obj'
arm-linux-gnueabihf-ld: drivers/gpu/drm/drm_fb_cma_helper.c:46:
undefined reference to `drm_gem_fb_get_obj'
arm-linux-gnueabihf-ld: drivers/gpu/drm/drm_fb_cma_helper.o: in
function `drm_fb_cma_sync_non_coherent':
drivers/gpu/drm/drm_fb_cma_helper.c:133: undefined reference to
`drm_atomic_helper_damage_iter_init'
arm-linux-gnueabihf-ld: drivers/gpu/drm/drm_fb_cma_helper.c:135:
undefined reference to `drm_atomic_helper_damage_iter_next'
make[1]: *** [Makefile:1252: vmlinux] Error 1
make[1]: Target '__all' not remade because of errors.
make: *** [Makefile:226: __sub-make] Error 2

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


build link:
-----------
https://builds.tuxbuild.com/1zzgFZBGjpQ5R0lawQFW9iJ39Hp/build.log

build config:
-------------
https://builds.tuxbuild.com/1zzgFZBGjpQ5R0lawQFW9iJ39Hp/config

# To install tuxmake on your system globally
# sudo pip3 install -U tuxmake
tuxmake --runtime podman --target-arch arm --toolchain gcc-11
--kconfig multi_v5_defconfig

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