linux-kernel - Re: [PATCH 2/3] drm/bridge: microchip-lvds: Drop unused headers

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Message-ID: <202409011412.DQVmnHIW-lkp@intel.com>
Date: Sun, 1 Sep 2024 15:28:35 +0800
From: kernel test robot <lkp@...el.com>
To: Claudiu Beznea <claudiu.beznea@...on.dev>, manikandan.m@...rochip.com,
	dharma.b@...rochip.com, andrzej.hajda@...el.com,
	neil.armstrong@...aro.org, rfoss@...nel.org,
	Laurent.pinchart@...asonboard.com, jonas@...boo.se,
	jernej.skrabec@...il.com, maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org, tzimmermann@...e.de, airlied@...il.com,
	daniel@...ll.ch, hari.prasathge@...rochip.com
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	claudiu.beznea@...on.dev
Subject: Re: [PATCH 2/3] drm/bridge: microchip-lvds: Drop unused headers

Hi Claudiu,

kernel test robot noticed the following build errors:

[auto build test ERROR on drm-misc/drm-misc-next]
[also build test ERROR on linus/master v6.11-rc5 next-20240830]
[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/Claudiu-Beznea/drm-bridge-microchip-lvds-Revert-clk_prepare_enable-in-case-of-failure/20240828-001456
base:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
patch link:    https://lore.kernel.org/r/20240827161223.4152195-3-claudiu.beznea%40tuxon.dev
patch subject: [PATCH 2/3] drm/bridge: microchip-lvds: Drop unused headers
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20240901/202409011412.DQVmnHIW-lkp@intel.com/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240901/202409011412.DQVmnHIW-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/202409011412.DQVmnHIW-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/bridge/microchip-lvds.c:62:9: error: call to undeclared function 'readl_relaxed'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
      62 |         return readl_relaxed(lvds->regs + offset);
         |                ^
>> drivers/gpu/drm/bridge/microchip-lvds.c:67:2: error: call to undeclared function 'writel_relaxed'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
      67 |         writel_relaxed(val, lvds->regs + offset);
         |         ^
   2 errors generated.


vim +/readl_relaxed +62 drivers/gpu/drm/bridge/microchip-lvds.c

179b0769fc5fc19 Dharma Balasubiramani 2024-04-21  59  
179b0769fc5fc19 Dharma Balasubiramani 2024-04-21  60  static inline u32 lvds_readl(struct mchp_lvds *lvds, u32 offset)
179b0769fc5fc19 Dharma Balasubiramani 2024-04-21  61  {
179b0769fc5fc19 Dharma Balasubiramani 2024-04-21 @62  	return readl_relaxed(lvds->regs + offset);
179b0769fc5fc19 Dharma Balasubiramani 2024-04-21  63  }
179b0769fc5fc19 Dharma Balasubiramani 2024-04-21  64  
179b0769fc5fc19 Dharma Balasubiramani 2024-04-21  65  static inline void lvds_writel(struct mchp_lvds *lvds, u32 offset, u32 val)
179b0769fc5fc19 Dharma Balasubiramani 2024-04-21  66  {
179b0769fc5fc19 Dharma Balasubiramani 2024-04-21 @67  	writel_relaxed(val, lvds->regs + offset);
179b0769fc5fc19 Dharma Balasubiramani 2024-04-21  68  }
179b0769fc5fc19 Dharma Balasubiramani 2024-04-21  69  

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