Re: gpu: drm_fb_cma_helper.c:46: undefined reference to `drm_gem_fb_get_obj'

From: Thomas Zimmermann <tzimmermann@suse.de>
To: Naresh Kamboju <naresh.kamboju@linaro.org>,
	dri-devel@lists.freedesktop.org,
	open list <linux-kernel@vger.kernel.org>,
	Linux-Next Mailing List <linux-next@vger.kernel.org>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	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>,
	Daniel Vetter <daniel.vetter@ffwll.ch>
Subject: Re: gpu: drm_fb_cma_helper.c:46: undefined reference to `drm_gem_fb_get_obj'
Date: Tue, 26 Oct 2021 19:59:40 +0200	[thread overview]
Message-ID: <b26491f8-66a4-d532-e866-2dc0ecb922d2@suse.de> (raw)
In-Reply-To: <CA+G9fYvdhk-H8wBDdaPmRMZS_egxndncUkbZ92HCnUFD1g_wSQ@mail.gmail.com>

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Hi

Am 25.10.21 um 16:01 schrieb Naresh Kamboju:
> On Mon, 25 Oct 2021 at 17:43, Naresh Kamboju <naresh.kamboju@linaro.org> wrote:
>>
>> 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>
> 
> The bisection script pointed to the first bad commit,
> 
> commit 4b2b5e142ff499a2bef2b8db0272bbda1088a3fe
> drm: Move GEM memory managers into modules

Could you please try the patch at [1]? It fixes the problem for me.

Best regards
Thomas

[1] https://patchwork.freedesktop.org/patch/461426/

> 
>> 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
> 
> - Naresh
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer

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