Re: [PATCH v4 5/9] drm/bridge: add a driver for T-Head TH1520 HDMI controller

[kernel test robot <lkp@intel.com>]

:::::: 
:::::: Manual check reason: "low confidence static check warning: drivers/gpu/drm/bridge/th1520-dw-hdmi.c:171:1: sparse: sparse: bad integer constant expression"
:::::: 

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
In-Reply-To: <20251224161205.1132149-6-zhengxingda@iscas.ac.cn>
References: <20251224161205.1132149-6-zhengxingda@iscas.ac.cn>
TO: Icenowy Zheng <zhengxingda@iscas.ac.cn>
TO: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
TO: Maxime Ripard <mripard@kernel.org>
TO: Thomas Zimmermann <tzimmermann@suse.de>
TO: David Airlie <airlied@gmail.com>
TO: Simona Vetter <simona@ffwll.ch>
TO: Rob Herring <robh@kernel.org>
TO: Krzysztof Kozlowski <krzk@kernel.org>
TO: Conor Dooley <conor+dt@kernel.org>
TO: Drew Fustini <fustini@kernel.org>
TO: Guo Ren <guoren@kernel.org>
TO: Fu Wei <wefu@redhat.com>
TO: Philipp Zabel <p.zabel@pengutronix.de>
TO: Heiko Stuebner <heiko@sntech.de>
TO: Andrzej Hajda <andrzej.hajda@intel.com>
TO: Neil Armstrong <neil.armstrong@linaro.org>
TO: Robert Foss <rfoss@kernel.org>
TO: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
TO: Jonas Karlman <jonas@kwiboo.se>
TO: Jernej Skrabec <jernej.skrabec@gmail.com>
TO: Michal Wilczynski <m.wilczynski@samsung.com>
CC: Han Gao <rabenda.cn@gmail.com>
CC: Yao Zi <ziyao@disroot.org>
CC: dri-devel@lists.freedesktop.org
CC: devicetree@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: linux-riscv@lists.infradead.org
CC: Icenowy Zheng <uwu@icenowy.me>

Hi Icenowy,

kernel test robot noticed the following build warnings:

[auto build test WARNING on robh/for-next]
[also build test WARNING on drm/drm-next linus/master v6.19-rc2]
[cannot apply to drm-misc/drm-misc-next next-20251219]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Icenowy-Zheng/dt-bindings-vendor-prefixes-add-verisilicon/20251225-001940
base:   https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link:    https://lore.kernel.org/r/20251224161205.1132149-6-zhengxingda%40iscas.ac.cn
patch subject: [PATCH v4 5/9] drm/bridge: add a driver for T-Head TH1520 HDMI controller
:::::: branch date: 20 hours ago
:::::: commit date: 20 hours ago
config: csky-randconfig-r111-20251225 (https://download.01.org/0day-ci/archive/20251225/202512252008.HSCDbE5W-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 14.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251225/202512252008.HSCDbE5W-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@intel.com>
| Closes: https://lore.kernel.org/r/202512252008.HSCDbE5W-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/bridge/th1520-dw-hdmi.c:171:1: sparse: sparse: bad integer constant expression
   drivers/gpu/drm/bridge/th1520-dw-hdmi.c:171:1: sparse: sparse: static assertion failed: "MODULE_INFO(author, ...) contains embedded NUL byte"
   drivers/gpu/drm/bridge/th1520-dw-hdmi.c:172:1: sparse: sparse: bad integer constant expression
   drivers/gpu/drm/bridge/th1520-dw-hdmi.c:172:1: sparse: sparse: static assertion failed: "MODULE_INFO(description, ...) contains embedded NUL byte"
   drivers/gpu/drm/bridge/th1520-dw-hdmi.c:173:1: sparse: sparse: bad integer constant expression
   drivers/gpu/drm/bridge/th1520-dw-hdmi.c:173:1: sparse: sparse: static assertion failed: "MODULE_INFO(license, ...) contains embedded NUL byte"

vim +171 drivers/gpu/drm/bridge/th1520-dw-hdmi.c

f6cfaf05df47d5 Icenowy Zheng 2025-12-25  170  
f6cfaf05df47d5 Icenowy Zheng 2025-12-25 @171  MODULE_AUTHOR("Icenowy Zheng <uwu@icenowy.me>");

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