linux-kernel - Re: [PATCH 3/3] drm/bridge: sii9234: use extcon cable detection logic to detect MHL

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <202507250036.RXWSmKW2-lkp@intel.com>
Date: Fri, 25 Jul 2025 00:40:51 +0800
From: kernel test robot <lkp@...el.com>
To: Henrik Grimler <henrik@...mler.se>,
	Andrzej Hajda <andrzej.hajda@...el.com>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Robert Foss <rfoss@...nel.org>,
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
	Jonas Karlman <jonas@...boo.se>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	Maciej Purski <m.purski@...sung.com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	dri-devel@...ts.freedesktop.org, linux-samsung-soc@...r.kernel.org,
	~postmarketos/upstreaming@...ts.sr.ht, replicant@...osl.org,
	linux-kernel@...r.kernel.org, Henrik Grimler <henrik@...mler.se>
Subject: Re: [PATCH 3/3] drm/bridge: sii9234: use extcon cable detection
 logic to detect MHL

Hi Henrik,

kernel test robot noticed the following build errors:

[auto build test ERROR on ca2a6abdaee43808034cdb218428d2ed85fd3db8]

url:    https://github.com/intel-lab-lkp/linux/commits/Henrik-Grimler/drm-bridge-sii9234-fix-some-typos-in-comments-and-messages/20250721-174814
base:   ca2a6abdaee43808034cdb218428d2ed85fd3db8
patch link:    https://lore.kernel.org/r/20250721-exynos4-sii9234-driver-v1-3-2e47ed02f677%40grimler.se
patch subject: [PATCH 3/3] drm/bridge: sii9234: use extcon cable detection logic to detect MHL
config: arm64-randconfig-002-20250724 (https://download.01.org/0day-ci/archive/20250725/202507250036.RXWSmKW2-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 853c343b45b3e83cc5eeef5a52fc8cc9d8a09252)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250725/202507250036.RXWSmKW2-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202507250036.RXWSmKW2-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: extcon_register_notifier
   >>> referenced by sii9234.c:928 (drivers/gpu/drm/bridge/sii9234.c:928)
   >>>               drivers/gpu/drm/bridge/sii9234.o:(sii9234_probe) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: extcon_unregister_notifier
   >>> referenced by sii9234.c:1009 (drivers/gpu/drm/bridge/sii9234.c:1009)
   >>>               drivers/gpu/drm/bridge/sii9234.o:(sii9234_remove) in archive vmlinux.a

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki